Add AUTH system tx deltas

System tx commit no longer checks for ACTIVE, just sets it to IDLE (in
the correct scheme)
Updated tests

.arcconfig

@@ -1,7 +0,0 @@
-{
-  "project_id" : "memgraph",
-  "conduit_uri" : "https://phabricator.memgraph.io",
-  "phabricator_uri" : "https://phabricator.memgraph.io",
-  "git.default-relative-commit": "origin/master",
-  "arc.land.onto.default": "master"
-}

.clang-format

@@ -1,9 +1,11 @@
 ---
+BasedOnStyle: Google
+---
 Language:     Cpp
-BasedOnStyle: Google
-Standard:     "C++11"
+Standard:     "c++20"
 UseTab:       Never
 DerivePointerAlignment: false
 PointerAlignment: Right
-ColumnLimit : 80
+ColumnLimit : 120
+IncludeBlocks: Preserve
 ...

.clang-tidy

@@ -0,0 +1,92 @@
+---
+Checks: '*,
+         -abseil-string-find-str-contains,
+         -altera-id-dependent-backward-branch,
+         -altera-struct-pack-align,
+         -altera-unroll-loops,
+         -android-*,
+         -cert-err58-cpp,
+         -cppcoreguidelines-avoid-c-arrays,
+         -cppcoreguidelines-avoid-goto,
+         -cppcoreguidelines-avoid-magic-numbers,
+         -cppcoreguidelines-no-malloc,
+         -cppcoreguidelines-non-private-member-variables-in-classes,
+         -cppcoreguidelines-owning-memory,
+         -cppcoreguidelines-pro-bounds-array-to-pointer-decay,
+         -cppcoreguidelines-pro-bounds-constant-array-index,
+         -cppcoreguidelines-pro-bounds-pointer-arithmetic,
+         -cppcoreguidelines-pro-type-member-init,
+         -cppcoreguidelines-pro-type-reinterpret-cast,
+         -cppcoreguidelines-pro-type-static-cast-downcast,
+         -cppcoreguidelines-pro-type-union-access,
+         -cppcoreguidelines-pro-type-vararg,
+         -cppcoreguidelines-special-member-functions,
+         -fuchsia-default-arguments,
+         -fuchsia-default-arguments-calls,
+         -fuchsia-default-arguments-declarations,
+         -fuchsia-overloaded-operator,
+         -fuchsia-statically-constructed-objects,
+         -fuchsia-trailing-return,
+         -fuchsia-virtual-inheritance,
+         -google-explicit-constructor,
+         -google-readability-*,
+         -google-runtime-references,
+         -hicpp-avoid-c-arrays,
+         -hicpp-avoid-goto,
+         -hicpp-braces-around-statements,
+         -hicpp-member-init,
+         -hicpp-no-array-decay,
+         -hicpp-no-assembler,
+         -hicpp-no-malloc,
+         -hicpp-use-equals-default,
+         -hicpp-use-nullptr,
+         -hicpp-vararg,
+         -llvm-header-guard,
+         -llvm-include-order,
+         -llvmlibc-callee-namespace,
+         -llvmlibc-implementation-in-namespace,
+         -llvmlibc-restrict-system-libc-headers,
+         -misc-non-private-member-variables-in-classes,
+         -modernize-avoid-c-arrays,
+         -modernize-concat-nested-namespaces,
+         -modernize-pass-by-value,
+         -modernize-use-equals-default,
+         -modernize-use-nodiscard,
+         -modernize-use-trailing-return-type,
+         -performance-unnecessary-value-param,
+         -readability-braces-around-statements,
+         -readability-else-after-return,
+         -readability-function-cognitive-complexity,
+         -readability-implicit-bool-conversion,
+         -readability-magic-numbers,
+         -readability-named-parameter,
+         -misc-no-recursion,
+         -concurrency-mt-unsafe,
+         -bugprone-easily-swappable-parameters'
+
+WarningsAsErrors: ''
+HeaderFilterRegex: 'src/.*'
+AnalyzeTemporaryDtors: false
+FormatStyle:     none
+CheckOptions:
+  - key:             google-readability-braces-around-statements.ShortStatementLines
+    value:           '1'
+  - key:             google-readability-function-size.StatementThreshold
+    value:           '800'
+  - key:             google-readability-namespace-comments.ShortNamespaceLines
+    value:           '10'
+  - key:             google-readability-namespace-comments.SpacesBeforeComments
+    value:           '2'
+  - key:             modernize-loop-convert.MaxCopySize
+    value:           '16'
+  - key:             modernize-loop-convert.MinConfidence
+    value:           reasonable
+  - key:             modernize-loop-convert.NamingStyle
+    value:           CamelCase
+  - key:             modernize-pass-by-value.IncludeStyle
+    value:           llvm
+  - key:             modernize-replace-auto-ptr.IncludeStyle
+    value:           llvm
+  - key:             modernize-use-nullptr.NullMacros
+    value:           'NULL'
+...

.githooks/pre-commit

@@ -0,0 +1,36 @@
+#!/bin/sh
+
+project_folder=$(git rev-parse --show-toplevel)
+if git rev-parse --verify HEAD >/dev/null 2>&1
+then
+	against=HEAD
+else
+	# Initial commit: diff against an empty tree object
+	against=$(git hash-object -t tree /dev/null)
+fi
+
+# Redirect output to stderr.
+exec 1>&2
+
+tmpdir=$(mktemp -d repo-XXXXXXXX)
+trap "rm -rf $tmpdir" EXIT INT
+
+modified_files=$(git diff --cached --name-only --diff-filter=AM $against | sed -nE "/.*\.(cpp|cc|cxx|c|h|hpp)$/p")
+FAIL=0
+for file in $modified_files; do
+  echo "Checking $file..."
+
+  cp $project_folder/.clang-format $project_folder/.clang-tidy $tmpdir
+
+  git checkout-index --prefix="$tmpdir/" -- $file
+
+  # Do not break header checker
+  echo "Running header checker..."
+  $project_folder/tools/header-checker.py $tmpdir/$file $file --amend-year
+  CODE=$?
+  if [ $CODE -ne 0 ]; then
+    FAIL=1
+  fi
+done;
+
+exit ${FAIL}

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,42 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ""
+labels: bug
+assignees: gitbuda
+---
+
+**Memgraph version**
+Which version did you use?
+
+**Environment**
+Some information about the environment you are using Memgraph on: operating
+system, architecture (ARM, x86), how do you connect, with or without docker,
+which driver etc.
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Run the following query '...'
+2. Click on '....'
+3. ... IDEALLY: link to the workload info (DATASET & QUERIES) ...
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Logs**
+If applicable, add logs of Memgraph, CLI output or screenshots to help explain
+your problem.
+
+**Additional context**
+Add any other context about the problem here.
+
+**Verification Environment**
+Once we fix it, what do you need to verify the fix?
+Do you need:
+* Plain memgraph package -> for which Linux?
+* Plain memgraph Docker image?
+* Which architecture do you use ARM | x86?
+* Full Memgraph platform?

.github/pull_request_template.md

@@ -0,0 +1,14 @@
+[master < Epic] PR
+- [ ] Check, and update documentation if necessary
+- [ ] Write E2E tests
+- [ ] Compare the [benchmarking results](https://bench-graph.memgraph.com/) between the master branch and the Epic branch
+- [ ] Provide the full content or a guide for the final git message
+
+[master < Task] PR
+- [ ] Check, and update documentation if necessary
+- [ ] Provide the full content or a guide for the final git message
+
+
+To keep docs changelog up to date, one more thing to do:
+- [ ] Write a release note here, including added/changed clauses
+- [ ] Tag someone from docs team in the comments

.github/workflows/daily_benchmark.yaml

@@ -0,0 +1,106 @@
+name: Daily Benchmark
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 22 * * *"
+
+jobs:
+  release_benchmarks:
+    name: "Release benchmarks"
+    runs-on: [self-hosted, Linux, X64, Diff, Gen7]
+    env:
+      THREADS: 24
+      MEMGRAPH_ENTERPRISE_LICENSE: ${{ secrets.MEMGRAPH_ENTERPRISE_LICENSE }}
+      MEMGRAPH_ORGANIZATION_NAME: ${{ secrets.MEMGRAPH_ORGANIZATION_NAME }}
+
+    steps:
+      - name: Set up repository
+        uses: actions/checkout@v3
+        with:
+          # Number of commits to fetch. `0` indicates all history for all
+          # branches and tags. (default: 1)
+          fetch-depth: 0
+
+      - name: Build release binaries
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Initialize dependencies.
+          ./init
+
+          # Build only memgraph release binaries.
+          cd build
+          cmake -DCMAKE_BUILD_TYPE=release ..
+          make -j$THREADS
+
+      - name: Run macro benchmarks
+        run: |
+          cd tests/macro_benchmark
+          ./harness QuerySuite MemgraphRunner \
+            --groups aggregation 1000_create unwind_create dense_expand match \
+            --no-strict
+
+      - name: Get branch name (merge)
+        if: github.event_name != 'pull_request'
+        shell: bash
+        run: echo "BRANCH_NAME=$(echo ${GITHUB_REF#refs/heads/} | tr / -)" >> $GITHUB_ENV
+
+      - name: Get branch name (pull request)
+        if: github.event_name == 'pull_request'
+        shell: bash
+        run: echo "BRANCH_NAME=$(echo ${GITHUB_HEAD_REF} | tr / -)" >> $GITHUB_ENV
+
+      - name: Upload macro benchmark results
+        run: |
+          cd tools/bench-graph-client
+          virtualenv -p python3 ve3
+          source ve3/bin/activate
+          pip install -r requirements.txt
+          ./main.py --benchmark-name "macro_benchmark" \
+                    --benchmark-results "../../tests/macro_benchmark/.harness_summary" \
+                    --github-run-id "${{ github.run_id }}" \
+                    --github-run-number "${{ github.run_number }}" \
+                    --head-branch-name "${{ env.BRANCH_NAME }}"
+
+      - name: Run mgbench
+        run: |
+          cd tests/mgbench
+          ./benchmark.py vendor-native --num-workers-for-benchmark 12 --export-results benchmark_pokec.json pokec/medium/*/*
+
+          ./benchmark.py vendor-native --num-workers-for-benchmark 1 --export-results benchmark_supernode.json supernode
+
+          ./benchmark.py vendor-native --num-workers-for-benchmark 1 --export-results benchmark_high_write_set_property.json high_write_set_property
+
+          ./benchmark.py vendor-native --num-workers-for-benchmark 12 --export-results cartesian.json cartesian
+
+      - name: Upload mgbench results
+        run: |
+          cd tools/bench-graph-client
+          virtualenv -p python3 ve3
+          source ve3/bin/activate
+          pip install -r requirements.txt
+          ./main.py --benchmark-name "mgbench" \
+                    --benchmark-results "../../tests/mgbench/benchmark_pokec.json" \
+                    --github-run-id "${{ github.run_id }}" \
+                    --github-run-number "${{ github.run_number }}" \
+                    --head-branch-name "${{ env.BRANCH_NAME }}"
+
+          ./main.py --benchmark-name "supernode" \
+                    --benchmark-results "../../tests/mgbench/benchmark_supernode.json" \
+                    --github-run-id "${{ github.run_id }}" \
+                    --github-run-number "${{ github.run_number }}" \
+                    --head-branch-name "${{ env.BRANCH_NAME }}"
+
+          ./main.py --benchmark-name "high_write_set_property" \
+                    --benchmark-results "../../tests/mgbench/benchmark_high_write_set_property.json" \
+                    --github-run-id "${{ github.run_id }}" \
+                    --github-run-number "${{ github.run_number }}" \
+                    --head-branch-name "${{ env.BRANCH_NAME }}"
+
+          ./main.py --benchmark-name "cartesian" \
+                    --benchmark-results "../../tests/mgbench/cartesian.json" \
+                    --github-run-id "${{ github.run_id }}" \
+                    --github-run-number "${{ github.run_number }}" \
+                    --head-branch-name "${{ env.BRANCH_NAME }}"

.github/workflows/diff.yaml

@@ -0,0 +1,518 @@
+name: Diff
+concurrency:
+  group: ${{ github.head_ref || github.sha }}
+  cancel-in-progress: true
+
+on:
+  push:
+    branches:
+      - master
+  workflow_dispatch:
+  pull_request:
+    paths-ignore:
+      - "docs/**"
+      - "**/*.md"
+      - ".clang-format"
+      - "CODEOWNERS"
+      - "licenses/*"
+
+jobs:
+  community_build:
+    name: "Community build"
+    runs-on: [self-hosted, Linux, X64, Diff]
+    env:
+      THREADS: 24
+      MEMGRAPH_ENTERPRISE_LICENSE: ${{ secrets.MEMGRAPH_ENTERPRISE_LICENSE }}
+      MEMGRAPH_ORGANIZATION_NAME: ${{ secrets.MEMGRAPH_ORGANIZATION_NAME }}
+
+    steps:
+      - name: Set up repository
+        uses: actions/checkout@v3
+        with:
+          # Number of commits to fetch. `0` indicates all history for all
+          # branches and tags. (default: 1)
+          fetch-depth: 0
+
+      - name: Build community binaries
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Initialize dependencies.
+          ./init
+
+          # Build community binaries.
+          cd build
+          cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo -DMG_ENTERPRISE=OFF ..
+          make -j$THREADS
+
+      - name: Run unit tests
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Run unit tests.
+          cd build
+          ctest -R memgraph__unit --output-on-failure -j$THREADS
+
+  code_analysis:
+    name: "Code analysis"
+    runs-on: [self-hosted, Linux, X64, Diff]
+    env:
+      THREADS: 24
+      MEMGRAPH_ENTERPRISE_LICENSE: ${{ secrets.MEMGRAPH_ENTERPRISE_LICENSE }}
+      MEMGRAPH_ORGANIZATION_NAME: ${{ secrets.MEMGRAPH_ORGANIZATION_NAME }}
+
+    steps:
+      - name: Set up repository
+        uses: actions/checkout@v3
+        with:
+          # Number of commits to fetch. `0` indicates all history for all
+          # branches and tags. (default: 1)
+          fetch-depth: 0
+
+        # This is also needed if we want do to comparison against other branches
+        # See https://github.community/t/checkout-code-fails-when-it-runs-lerna-run-test-since-master/17920
+      - name: Fetch all history for all tags and branches
+        run: git fetch
+
+      - name: Initialize deps
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Initialize dependencies.
+          ./init
+
+      - name: Set base branch
+        if: ${{ github.event_name == 'pull_request' }}
+        run: |
+          echo "BASE_BRANCH=origin/${{ github.base_ref }}" >> $GITHUB_ENV
+
+      - name: Set base branch # if we manually dispatch or push to master
+        if: ${{ github.event_name != 'pull_request' }}
+        run: |
+          echo "BASE_BRANCH=origin/master" >> $GITHUB_ENV
+
+      - name: Python code analysis
+        run: |
+          CHANGED_FILES=$(git diff -U0 ${{ env.BASE_BRANCH }}... --name-only)
+          for file in ${CHANGED_FILES}; do
+            echo ${file}
+            if [[ ${file} == *.py ]]; then
+              python3 -m black --check --diff ${file}
+              python3 -m isort --profile black --check-only --diff ${file}
+            fi
+          done
+
+      - name: Build combined ASAN, UBSAN and coverage binaries
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          cd build
+          cmake -DTEST_COVERAGE=ON -DASAN=ON -DUBSAN=ON ..
+          make -j$THREADS memgraph__unit
+
+      - name: Run unit tests
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Run unit tests. It is restricted to 2 threads intentionally, because higher concurrency makes the timing related tests unstable.
+          cd build
+          LSAN_OPTIONS=suppressions=$PWD/../tools/lsan.supp UBSAN_OPTIONS=halt_on_error=1 ctest -R memgraph__unit --output-on-failure -j2
+
+      - name: Compute code coverage
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Compute code coverage.
+          cd tools/github
+          ./coverage_convert
+
+          # Package code coverage.
+          cd generated
+          tar -czf code_coverage.tar.gz coverage.json html report.json summary.rmu
+
+      - name: Save code coverage
+        uses: actions/upload-artifact@v3
+        with:
+          name: "Code coverage"
+          path: tools/github/generated/code_coverage.tar.gz
+
+      - name: Run clang-tidy
+        run: |
+          source /opt/toolchain-v4/activate
+
+          # Restrict clang-tidy results only to the modified parts
+          git diff -U0 ${{ env.BASE_BRANCH }}... -- src | ./tools/github/clang-tidy/clang-tidy-diff.py -p 1 -j $THREADS -path build  -regex ".+\.cpp" | tee ./build/clang_tidy_output.txt
+
+          # Fail if any warning is reported
+          ! cat ./build/clang_tidy_output.txt | ./tools/github/clang-tidy/grep_error_lines.sh > /dev/null
+
+  debug_build:
+    name: "Debug build"
+    runs-on: [self-hosted, Linux, X64, Diff]
+    env:
+      THREADS: 24
+      MEMGRAPH_ENTERPRISE_LICENSE: ${{ secrets.MEMGRAPH_ENTERPRISE_LICENSE }}
+      MEMGRAPH_ORGANIZATION_NAME: ${{ secrets.MEMGRAPH_ORGANIZATION_NAME }}
+
+    steps:
+      - name: Set up repository
+        uses: actions/checkout@v3
+        with:
+          # Number of commits to fetch. `0` indicates all history for all
+          # branches and tags. (default: 1)
+          fetch-depth: 0
+
+      - name: Build debug binaries
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Initialize dependencies.
+          ./init
+
+          # Build debug binaries.
+          cd build
+          cmake ..
+          make -j$THREADS
+
+      - name: Run leftover CTest tests
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Run leftover CTest tests (all except unit and benchmark tests).
+          cd build
+          ctest -E "(memgraph__unit|memgraph__benchmark)" --output-on-failure
+
+      - name: Run drivers tests
+        run: |
+          ./tests/drivers/run.sh
+
+      - name: Run integration tests
+        run: |
+          tests/integration/run.sh
+
+      - name: Run cppcheck and clang-format
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Run cppcheck and clang-format.
+          cd tools/github
+          ./cppcheck_and_clang_format diff
+
+      - name: Save cppcheck and clang-format errors
+        uses: actions/upload-artifact@v3
+        with:
+          name: "Code coverage"
+          path: tools/github/cppcheck_and_clang_format.txt
+
+  release_build:
+    name: "Release build"
+    runs-on: [self-hosted, Linux, X64, Diff]
+    env:
+      THREADS: 24
+      MEMGRAPH_ENTERPRISE_LICENSE: ${{ secrets.MEMGRAPH_ENTERPRISE_LICENSE }}
+      MEMGRAPH_ORGANIZATION_NAME: ${{ secrets.MEMGRAPH_ORGANIZATION_NAME }}
+
+    steps:
+      - name: Set up repository
+        uses: actions/checkout@v3
+        with:
+          # Number of commits to fetch. `0` indicates all history for all
+          # branches and tags. (default: 1)
+          fetch-depth: 0
+
+
+      - name: Build release binaries
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Initialize dependencies.
+          ./init
+
+          # Build release binaries.
+          cd build
+          cmake -DCMAKE_BUILD_TYPE=Release ..
+          make -j$THREADS
+
+      - name: Run GQL Behave tests
+        run: |
+          cd tests
+          ./setup.sh /opt/toolchain-v4/activate
+          cd gql_behave
+          ./continuous_integration
+
+      - name: Save quality assurance status
+        uses: actions/upload-artifact@v3
+        with:
+          name: "GQL Behave Status"
+          path: |
+            tests/gql_behave/gql_behave_status.csv
+            tests/gql_behave/gql_behave_status.html
+
+      - name: Run unit tests
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Run unit tests.
+          cd build
+          ctest -R memgraph__unit --output-on-failure -j$THREADS
+
+      - name: Ensure Kafka and Pulsar are up
+        run: |
+          cd tests/e2e/streams/kafka
+          docker-compose up -d
+          cd ../pulsar
+          docker-compose up -d
+
+      - name: Run e2e tests
+        run: |
+          cd tests
+          ./setup.sh /opt/toolchain-v4/activate
+          source ve3/bin/activate_e2e
+          cd e2e
+          ./run.sh
+
+      - name: Ensure Kafka and Pulsar are down
+        if: always()
+        run: |
+          cd tests/e2e/streams/kafka
+          docker-compose down
+          cd ../pulsar
+          docker-compose down
+
+      - name: Run stress test (plain)
+        run: |
+          cd tests/stress
+          source ve3/bin/activate
+          ./continuous_integration
+
+      - name: Run stress test (SSL)
+        run: |
+          cd tests/stress
+          source ve3/bin/activate
+          ./continuous_integration --use-ssl
+
+      - name: Run durability test
+        run: |
+          cd tests/stress
+          source ve3/bin/activate
+          python3 durability --num-steps 5
+
+      - name: Create enterprise DEB package
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+          cd build
+
+          # create mgconsole
+          # we use the -B to force the build
+          make -j$THREADS -B mgconsole
+
+          # Create enterprise DEB package.
+          mkdir output && cd output
+          cpack -G DEB --config ../CPackConfig.cmake
+
+      - name: Save enterprise DEB package
+        uses: actions/upload-artifact@v3
+        with:
+          name: "Enterprise DEB package"
+          path: build/output/memgraph*.deb
+
+      - name: Save test data
+        uses: actions/upload-artifact@v3
+        if: always()
+        with:
+          name: "Test data"
+          path: |
+            # multiple paths could be defined
+            build/logs
+
+  experimental_build:
+    name: "MultiTenancy replication build"
+    runs-on: [self-hosted, Linux, X64, Diff]
+    env:
+      THREADS: 24
+      MEMGRAPH_ENTERPRISE_LICENSE: ${{ secrets.MEMGRAPH_ENTERPRISE_LICENSE }}
+      MEMGRAPH_ORGANIZATION_NAME: ${{ secrets.MEMGRAPH_ORGANIZATION_NAME }}
+
+    steps:
+      - name: Set up repository
+        uses: actions/checkout@v3
+        with:
+          # Number of commits to fetch. `0` indicates all history for all
+          # branches and tags. (default: 1)
+          fetch-depth: 0
+
+
+      - name: Build release binaries
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Initialize dependencies.
+          ./init
+
+          # Build MT replication experimental binaries.
+          cd build
+          cmake -DCMAKE_BUILD_TYPE=Release -D MG_EXPERIMENTAL_REPLICATION_MULTITENANCY=ON ..
+          make -j$THREADS
+
+      - name: Run unit tests
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Run unit tests.
+          cd build
+          ctest -R memgraph__unit --output-on-failure -j$THREADS
+
+      - name: Run e2e tests
+        run: |
+          cd tests
+          ./setup.sh /opt/toolchain-v4/activate
+          source ve3/bin/activate_e2e
+          cd e2e
+
+          # Just the replication based e2e tests
+          ./run.sh "Replicate multitenancy"
+          ./run.sh "Show"
+          ./run.sh "Show while creating invalid state"
+          ./run.sh "Delete edge replication"
+          ./run.sh "Read-write benchmark"
+          ./run.sh "Index replication"
+          ./run.sh "Constraints"
+
+      - name: Save test data
+        uses: actions/upload-artifact@v3
+        if: always()
+        with:
+          name: "Test data"
+          path: |
+            # multiple paths could be defined
+            build/logs
+
+  release_jepsen_test:
+    name: "Release Jepsen Test"
+    runs-on: [self-hosted, Linux, X64, Debian10, JepsenControl]
+    #continue-on-error: true
+    env:
+      THREADS: 24
+      MEMGRAPH_ENTERPRISE_LICENSE: ${{ secrets.MEMGRAPH_ENTERPRISE_LICENSE }}
+      MEMGRAPH_ORGANIZATION_NAME: ${{ secrets.MEMGRAPH_ORGANIZATION_NAME }}
+
+    steps:
+      - name: Set up repository
+        uses: actions/checkout@v3
+        with:
+          # Number of commits to fetch. `0` indicates all history for all
+          # branches and tags. (default: 1)
+          fetch-depth: 0
+
+      - name: Build release binaries
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+          # Initialize dependencies.
+          ./init
+          # Build only memgraph release binarie.
+          cd build
+          cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo ..
+          make -j$THREADS memgraph
+
+      - name: Run Jepsen tests
+        run: |
+          cd tests/jepsen
+          ./run.sh test-all-individually --binary ../../build/memgraph --ignore-run-stdout-logs --ignore-run-stderr-logs
+
+      - name: Save Jepsen report
+        uses: actions/upload-artifact@v3
+        if: ${{ always() }}
+        with:
+          name: "Jepsen Report"
+          path: tests/jepsen/Jepsen.tar.gz
+
+  release_benchmarks:
+    name: "Release benchmarks"
+    runs-on: [self-hosted, Linux, X64, Diff, Gen7]
+    env:
+      THREADS: 24
+      MEMGRAPH_ENTERPRISE_LICENSE: ${{ secrets.MEMGRAPH_ENTERPRISE_LICENSE }}
+      MEMGRAPH_ORGANIZATION_NAME: ${{ secrets.MEMGRAPH_ORGANIZATION_NAME }}
+
+    steps:
+      - name: Set up repository
+        uses: actions/checkout@v3
+        with:
+          # Number of commits to fetch. `0` indicates all history for all
+          # branches and tags. (default: 1)
+          fetch-depth: 0
+
+      - name: Build release binaries
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Initialize dependencies.
+          ./init
+
+          # Build only memgraph release binaries.
+          cd build
+          cmake -DCMAKE_BUILD_TYPE=release ..
+          make -j$THREADS
+
+      - name: Run macro benchmarks
+        run: |
+          cd tests/macro_benchmark
+          ./harness QuerySuite MemgraphRunner \
+            --groups aggregation 1000_create unwind_create dense_expand match \
+            --no-strict
+
+      - name: Get branch name (merge)
+        if: github.event_name != 'pull_request'
+        shell: bash
+        run: echo "BRANCH_NAME=$(echo ${GITHUB_REF#refs/heads/} | tr / -)" >> $GITHUB_ENV
+
+      - name: Get branch name (pull request)
+        if: github.event_name == 'pull_request'
+        shell: bash
+        run: echo "BRANCH_NAME=$(echo ${GITHUB_HEAD_REF} | tr / -)" >> $GITHUB_ENV
+
+      - name: Upload macro benchmark results
+        run: |
+          cd tools/bench-graph-client
+          virtualenv -p python3 ve3
+          source ve3/bin/activate
+          pip install -r requirements.txt
+          ./main.py --benchmark-name "macro_benchmark" \
+                    --benchmark-results "../../tests/macro_benchmark/.harness_summary" \
+                    --github-run-id "${{ github.run_id }}" \
+                    --github-run-number "${{ github.run_number }}" \
+                    --head-branch-name "${{ env.BRANCH_NAME }}"
+
+      # TODO (andi) No need for path flags and for --disk-storage and --in-memory-analytical
+      - name: Run mgbench
+        run: |
+          cd tests/mgbench
+          ./benchmark.py vendor-native --num-workers-for-benchmark 12 --export-results benchmark_result.json pokec/medium/*/*
+
+      - name: Upload mgbench results
+        run: |
+          cd tools/bench-graph-client
+          virtualenv -p python3 ve3
+          source ve3/bin/activate
+          pip install -r requirements.txt
+          ./main.py --benchmark-name "mgbench" \
+                    --benchmark-results "../../tests/mgbench/benchmark_result.json" \
+                    --github-run-id "${{ github.run_id }}" \
+                    --github-run-number "${{ github.run_number }}" \
+                    --head-branch-name "${{ env.BRANCH_NAME }}"

.github/workflows/full_clang_tidy.yaml

@@ -0,0 +1,46 @@
+name: Run clang-tidy on the full codebase
+
+on:
+  workflow_dispatch:
+
+jobs:
+  clang_tidy_check:
+    name: "Clang-tidy check"
+    runs-on: [self-hosted, Linux, X64, Ubuntu20.04]
+    env:
+      THREADS: 24
+      MEMGRAPH_ENTERPRISE_LICENSE: ${{ secrets.MEMGRAPH_ENTERPRISE_LICENSE }}
+      MEMGRAPH_ORGANIZATION_NAME: ${{ secrets.MEMGRAPH_ORGANIZATION_NAME }}
+
+    steps:
+      - name: Set up repository
+        uses: actions/checkout@v3
+        with:
+          # Number of commits to fetch. `0` indicates all history for all
+          # branches and tags. (default: 1)
+          fetch-depth: 0
+
+      - name: Build debug binaries
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Initialize dependencies.
+          ./init
+
+          # Build debug binaries.
+
+          cd build
+          cmake ..
+          make -j$THREADS
+
+      - name: Run clang-tidy
+        run: |
+          source /opt/toolchain-v4/activate
+
+          # The results are also written to standard output in order to retain them in the logs
+          ./tools/github/clang-tidy/run-clang-tidy.py -p build -j $THREADS -clang-tidy-binary=/opt/toolchain-v4/bin/clang-tidy "$PWD/src/*" |
+            tee ./build/full_clang_tidy_output.txt
+
+      - name: Summarize clang-tidy results
+        run: cat ./build/full_clang_tidy_output.txt | ./tools/github/clang-tidy/count_errors.sh

.github/workflows/package_memgraph.yaml

@@ -0,0 +1,295 @@
+name: Package memgraph
+
+# TODO(gitbuda): Cleanup docker container if GHA job was canceled.
+
+on:
+  workflow_dispatch:
+    inputs:
+      memgraph_version:
+        description: "Memgraph version to upload as. Leave this field empty if you don't want to upload binaries to S3. Format: 'X.Y.Z'"
+        required: false
+      build_type:
+        type: choice
+        description: "Memgraph Build type. Default value is Release"
+        default: 'Release'
+        options:
+          - Release
+          - RelWithDebInfo
+      target_os:
+        type: choice
+        description: "Target OS for which memgraph will be packaged. Select 'all' if you want to package for every listed OS. Default is Ubuntu 22.04"
+        default: 'ubuntu-22_04'
+        options:
+          - all
+          - amzn-2
+          - centos-7
+          - centos-9
+          - debian-10
+          - debian-11
+          - debian-11-arm
+          - debian-11-platform
+          - docker
+          - fedora-36
+          - ubuntu-18_04
+          - ubuntu-20_04
+          - ubuntu-22_04
+          - ubuntu-22_04-arm
+
+jobs:
+  amzn-2:
+    if: ${{ github.event.inputs.target_os == 'amzn-2' || github.event.inputs.target_os == 'all' }}
+    runs-on: [self-hosted, DockerMgBuild, X64]
+    timeout-minutes: 60
+    steps:
+      - name: "Set up repository"
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0 # Required because of release/get_version.py
+      - name: "Build package"
+        run: |
+          ./release/package/run.sh package amzn-2 ${{ github.event.inputs.build_type }}
+      - name: "Upload package"
+        uses: actions/upload-artifact@v3
+        with:
+          name: amzn-2
+          path: build/output/amzn-2/memgraph*.rpm
+
+  centos-7:
+    if: ${{ github.event.inputs.target_os == 'centos-7' || github.event.inputs.target_os == 'all' }}
+    runs-on: [self-hosted, DockerMgBuild, X64]
+    timeout-minutes: 60
+    steps:
+      - name: "Set up repository"
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0 # Required because of release/get_version.py
+      - name: "Build package"
+        run: |
+          ./release/package/run.sh package centos-7 ${{ github.event.inputs.build_type }}
+      - name: "Upload package"
+        uses: actions/upload-artifact@v3
+        with:
+          name: centos-7
+          path: build/output/centos-7/memgraph*.rpm
+
+  centos-9:
+    if: ${{ github.event.inputs.target_os == 'centos-9' || github.event.inputs.target_os == 'all' }}
+    runs-on: [self-hosted, DockerMgBuild, X64]
+    timeout-minutes: 60
+    steps:
+      - name: "Set up repository"
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0 # Required because of release/get_version.py
+      - name: "Build package"
+        run: |
+          ./release/package/run.sh package centos-9 ${{ github.event.inputs.build_type }}
+      - name: "Upload package"
+        uses: actions/upload-artifact@v3
+        with:
+          name: centos-9
+          path: build/output/centos-9/memgraph*.rpm
+
+  debian-10:
+    if: ${{ github.event.inputs.target_os == 'debian-10' || github.event.inputs.target_os == 'all' }}
+    runs-on: [self-hosted, DockerMgBuild, X64]
+    timeout-minutes: 60
+    steps:
+      - name: "Set up repository"
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0 # Required because of release/get_version.py
+      - name: "Build package"
+        run: |
+          ./release/package/run.sh package debian-10 ${{ github.event.inputs.build_type }}
+      - name: "Upload package"
+        uses: actions/upload-artifact@v3
+        with:
+          name: debian-10
+          path: build/output/debian-10/memgraph*.deb
+
+  debian-11:
+    if: ${{ github.event.inputs.target_os == 'debian-11' || github.event.inputs.target_os == 'all' }}
+    runs-on: [self-hosted, DockerMgBuild, X64]
+    timeout-minutes: 60
+    steps:
+      - name: "Set up repository"
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0 # Required because of release/get_version.py
+      - name: "Build package"
+        run: |
+          ./release/package/run.sh package debian-11 ${{ github.event.inputs.build_type }}
+      - name: "Upload package"
+        uses: actions/upload-artifact@v3
+        with:
+          name: debian-11
+          path: build/output/debian-11/memgraph*.deb
+
+  debian-11-arm:
+    if: ${{ github.event.inputs.target_os == 'debian-11-arm' || github.event.inputs.target_os == 'all' }}
+    runs-on: [self-hosted, DockerMgBuild, ARM64, strange]
+    timeout-minutes: 120
+    steps:
+      - name: "Set up repository"
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0 # Required because of release/get_version.py
+      - name: "Build package"
+        run: |
+          ./release/package/run.sh package debian-11-arm ${{ github.event.inputs.build_type }}
+      - name: "Upload package"
+        uses: actions/upload-artifact@v3
+        with:
+          name: debian-11-aarch64
+          path: build/output/debian-11-arm/memgraph*.deb
+
+  debian-11-platform:
+    if: ${{ github.event.inputs.target_os == 'debian-11-platform' || github.event.inputs.target_os == 'all' }}
+    runs-on: [self-hosted, DockerMgBuild, X64]
+    timeout-minutes: 60
+    steps:
+      - name: "Set up repository"
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0 # Required because of release/get_version.py
+      - name: "Build package"
+        run: |
+          ./release/package/run.sh package debian-11 ${{ github.event.inputs.build_type }} --for-platform
+      - name: "Upload package"
+        uses: actions/upload-artifact@v3
+        with:
+          name: debian-11-platform
+          path: build/output/debian-11/memgraph*.deb
+
+  docker:
+    if: ${{ github.event.inputs.target_os == 'docker' || github.event.inputs.target_os == 'all' }}
+    runs-on: [self-hosted, DockerMgBuild, X64]
+    timeout-minutes: 60
+    steps:
+      - name: "Set up repository"
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0 # Required because of release/get_version.py
+      - name: "Build package"
+        run: |
+          cd release/package
+          ./run.sh package debian-11 ${{ github.event.inputs.build_type }} --for-docker
+          ./run.sh docker
+      - name: "Upload package"
+        uses: actions/upload-artifact@v3
+        with:
+          name: docker
+          path: build/output/docker/memgraph*.tar.gz
+
+  fedora-36:
+    if: ${{ github.event.inputs.target_os == 'fedora-36' || github.event.inputs.target_os == 'all' }}
+    runs-on: [self-hosted, DockerMgBuild, X64]
+    timeout-minutes: 60
+    steps:
+      - name: "Set up repository"
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0 # Required because of release/get_version.py
+      - name: "Build package"
+        run: |
+          ./release/package/run.sh package fedora-36 ${{ github.event.inputs.build_type }}
+      - name: "Upload package"
+        uses: actions/upload-artifact@v3
+        with:
+          name: fedora-36
+          path: build/output/fedora-36/memgraph*.rpm
+
+  ubuntu-18_04:
+    if: ${{ github.event.inputs.target_os == 'ubuntu-18_04' || github.event.inputs.target_os == 'all' }}
+    runs-on: [self-hosted, DockerMgBuild, X64]
+    timeout-minutes: 60
+    steps:
+      - name: "Set up repository"
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0 # Required because of release/get_version.py
+      - name: "Build package"
+        run: |
+          ./release/package/run.sh package ubuntu-18.04 ${{ github.event.inputs.build_type }}
+      - name: "Upload package"
+        uses: actions/upload-artifact@v3
+        with:
+          name: ubuntu-18.04
+          path: build/output/ubuntu-18.04/memgraph*.deb
+
+  ubuntu-20_04:
+    if: ${{ github.event.inputs.target_os == 'ubuntu-20_04' || github.event.inputs.target_os == 'all' }}
+    runs-on: [self-hosted, DockerMgBuild, X64]
+    timeout-minutes: 60
+    steps:
+      - name: "Set up repository"
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0 # Required because of release/get_version.py
+      - name: "Build package"
+        run: |
+          ./release/package/run.sh package ubuntu-20.04 ${{ github.event.inputs.build_type }}
+      - name: "Upload package"
+        uses: actions/upload-artifact@v3
+        with:
+          name: ubuntu-20.04
+          path: build/output/ubuntu-20.04/memgraph*.deb
+
+  ubuntu-22_04:
+    if: ${{ github.event.inputs.target_os == 'ubuntu-22_04' || github.event.inputs.target_os == 'all' }}
+    runs-on: [self-hosted, DockerMgBuild, X64]
+    timeout-minutes: 60
+    steps:
+      - name: "Set up repository"
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0 # Required because of release/get_version.py
+      - name: "Build package"
+        run: |
+          ./release/package/run.sh package ubuntu-22.04 ${{ github.event.inputs.build_type }}
+      - name: "Upload package"
+        uses: actions/upload-artifact@v3
+        with:
+          name: ubuntu-22.04
+          path: build/output/ubuntu-22.04/memgraph*.deb
+
+  ubuntu-22_04-arm:
+    if: ${{ github.event.inputs.target_os == 'ubuntu-22_04-arm' || github.event.inputs.target_os == 'all' }}
+    runs-on: [self-hosted, DockerMgBuild, ARM64, strange]
+    timeout-minutes: 120
+    steps:
+      - name: "Set up repository"
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0 # Required because of release/get_version.py
+      - name: "Build package"
+        run: |
+          ./release/package/run.sh package ubuntu-22.04-arm ${{ github.event.inputs.build_type }}
+      - name: "Upload package"
+        uses: actions/upload-artifact@v3
+        with:
+          name: ubuntu-22.04-aarch64
+          path: build/output/ubuntu-22.04-arm/memgraph*.deb
+
+  upload-to-s3:
+    # only run upload if we specified version. Allows for runs without upload
+    if: "${{ github.event.inputs.memgraph_version != '' }}"
+    needs: [amzn-2, centos-7, centos-9, debian-10, debian-11, debian-11-arm, debian-11-platform, docker, fedora-36, ubuntu-18_04, ubuntu-20_04, ubuntu-22_04, ubuntu-22_04-arm]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download artifacts
+        uses: actions/download-artifact@v3
+        with:
+          # name: # if name input parameter is not provided, all artifacts are downloaded
+                  # and put in directories named after each one.
+          path: build/output/release
+      - name: Upload to S3
+        uses: jakejarvis/s3-sync-action@v0.5.1
+        env:
+          AWS_S3_BUCKET: "download.memgraph.com"
+          AWS_ACCESS_KEY_ID: ${{ secrets.S3_AWS_ACCESS_KEY_ID }}
+          AWS_SECRET_ACCESS_KEY: ${{ secrets.S3_AWS_SECRET_ACCESS_KEY }}
+          AWS_REGION: "eu-west-1"
+          SOURCE_DIR: "build/output/release"
+          DEST_DIR: "memgraph/v${{ github.event.inputs.memgraph_version }}/"

.github/workflows/performance_benchmarks.yaml

@@ -0,0 +1,85 @@
+name: Run performance benchmarks manually
+
+on:
+  workflow_dispatch:
+
+jobs:
+  performance_benchmarks:
+    name: "Performance benchmarks"
+    runs-on: [self-hosted, Linux, X64, Diff, Gen7]
+    env:
+      THREADS: 24
+      MEMGRAPH_ENTERPRISE_LICENSE: ${{ secrets.MEMGRAPH_ENTERPRISE_LICENSE }}
+      MEMGRAPH_ORGANIZATION_NAME: ${{ secrets.MEMGRAPH_ORGANIZATION_NAME }}
+
+    steps:
+      - name: Set up repository
+        uses: actions/checkout@v3
+        with:
+          # Number of commits to fetch. `0` indicates all history for all
+          # branches and tags. (default: 1)
+          fetch-depth: 0
+
+      - name: Build release binaries
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Initialize dependencies.
+          ./init
+
+          # Build only memgraph release binaries.
+          cd build
+          cmake -DCMAKE_BUILD_TYPE=release ..
+          make -j$THREADS
+
+      - name: Get branch name (merge)
+        if: github.event_name != 'pull_request'
+        shell: bash
+        run: echo "BRANCH_NAME=$(echo ${GITHUB_REF#refs/heads/} | tr / -)" >> $GITHUB_ENV
+
+      - name: Get branch name (pull request)
+        if: github.event_name == 'pull_request'
+        shell: bash
+        run: echo "BRANCH_NAME=$(echo ${GITHUB_HEAD_REF} | tr / -)" >> $GITHUB_ENV
+
+      - name: Run benchmarks
+        run: |
+          cd tests/mgbench
+          ./benchmark.py vendor-native --num-workers-for-benchmark 12 --export-results benchmark_result.json pokec/medium/*/*
+
+          ./benchmark.py vendor-native --num-workers-for-benchmark 1 --export-results benchmark_supernode.json supernode
+
+          ./benchmark.py vendor-native --num-workers-for-benchmark 1 --export-results benchmark_high_write_set_property.json high_write_set_property
+
+          ./benchmark.py vendor-native --num-workers-for-benchmark 12 --export-results benchmark_cartesian.json cartesian
+
+      - name: Upload benchmark results
+        run: |
+          cd tools/bench-graph-client
+          virtualenv -p python3 ve3
+          source ve3/bin/activate
+          pip install -r requirements.txt
+          ./main.py --benchmark-name "mgbench" \
+                    --benchmark-results "../../tests/mgbench/benchmark_result.json" \
+                    --github-run-id "${{ github.run_id }}" \
+                    --github-run-number "${{ github.run_number }}" \
+                    --head-branch-name "${{ env.BRANCH_NAME }}"
+
+          ./main.py --benchmark-name "supernode" \
+                    --benchmark-results "../../tests/mgbench/benchmark_supernode.json" \
+                    --github-run-id "${{ github.run_id }}" \
+                    --github-run-number "${{ github.run_number }}" \
+                    --head-branch-name "${{ env.BRANCH_NAME }}"
+
+          ./main.py --benchmark-name "high_write_set_property" \
+                    --benchmark-results "../../tests/mgbench/benchmark_high_write_set_property.json" \
+                    --github-run-id "${{ github.run_id }}" \
+                    --github-run-number "${{ github.run_number }}" \
+                    --head-branch-name "${{ env.BRANCH_NAME }}"
+
+          ./main.py --benchmark-name "cartesian" \
+                    --benchmark-results "../../tests/mgbench/cartesian.json" \
+                    --github-run-id "${{ github.run_id }}" \
+                    --github-run-number "${{ github.run_number }}" \
+                    --head-branch-name "${{ env.BRANCH_NAME }}"

.github/workflows/release_debian10.yaml

@@ -0,0 +1,362 @@
+name: Release Debian 10
+
+on:
+  workflow_dispatch:
+    inputs:
+      build_type:
+        type: choice
+        description: "Memgraph Build type. Default value is Release."
+        default: 'Release'
+        options:
+          - Release
+          - RelWithDebInfo
+
+  schedule:
+    - cron: "0 22 * * *"
+
+jobs:
+  community_build:
+    name: "Community build"
+    runs-on: [self-hosted, Linux, X64, Debian10]
+    env:
+      THREADS: 24
+      MEMGRAPH_ENTERPRISE_LICENSE: ${{ secrets.MEMGRAPH_ENTERPRISE_LICENSE }}
+      MEMGRAPH_ORGANIZATION_NAME: ${{ secrets.MEMGRAPH_ORGANIZATION_NAME }}
+    timeout-minutes: 960
+
+    steps:
+      - name: Set up repository
+        uses: actions/checkout@v3
+        with:
+          # Number of commits to fetch. `0` indicates all history for all
+          # branches and tags. (default: 1)
+          fetch-depth: 0
+
+      - name: Build community binaries
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Initialize dependencies.
+          ./init
+
+          # Set default build_type to Release
+          INPUT_BUILD_TYPE=${{ github.event.inputs.build_type }}
+          BUILD_TYPE=${INPUT_BUILD_TYPE:-"Release"}
+
+          # Build community binaries.
+          cd build
+          cmake -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DMG_ENTERPRISE=OFF ..
+          make -j$THREADS
+
+      - name: Run unit tests
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Run unit tests.
+          cd build
+          ctest -R memgraph__unit --output-on-failure
+
+  coverage_build:
+    name: "Coverage build"
+    runs-on: [self-hosted, Linux, X64, Debian10]
+    env:
+      THREADS: 24
+      MEMGRAPH_ENTERPRISE_LICENSE: ${{ secrets.MEMGRAPH_ENTERPRISE_LICENSE }}
+      MEMGRAPH_ORGANIZATION_NAME: ${{ secrets.MEMGRAPH_ORGANIZATION_NAME }}
+
+    steps:
+      - name: Set up repository
+        uses: actions/checkout@v3
+        with:
+          # Number of commits to fetch. `0` indicates all history for all
+          # branches and tags. (default: 1)
+          fetch-depth: 0
+
+      - name: Build coverage binaries
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Initialize dependencies.
+          ./init
+
+          # Build coverage binaries.
+          cd build
+          cmake -DTEST_COVERAGE=ON ..
+          make -j$THREADS memgraph__unit
+
+      - name: Run unit tests
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Run unit tests.
+          cd build
+          ctest -R memgraph__unit --output-on-failure
+
+      - name: Compute code coverage
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Compute code coverage.
+          cd tools/github
+          ./coverage_convert
+
+          # Package code coverage.
+          cd generated
+          tar -czf code_coverage.tar.gz coverage.json html report.json summary.rmu
+
+      - name: Save code coverage
+        uses: actions/upload-artifact@v3
+        with:
+          name: "Code coverage"
+          path: tools/github/generated/code_coverage.tar.gz
+
+  debug_build:
+    name: "Debug build"
+    runs-on: [self-hosted, Linux, X64, Debian10]
+    env:
+      THREADS: 24
+      MEMGRAPH_ENTERPRISE_LICENSE: ${{ secrets.MEMGRAPH_ENTERPRISE_LICENSE }}
+      MEMGRAPH_ORGANIZATION_NAME: ${{ secrets.MEMGRAPH_ORGANIZATION_NAME }}
+
+    steps:
+      - name: Set up repository
+        uses: actions/checkout@v3
+        with:
+          # Number of commits to fetch. `0` indicates all history for all
+          # branches and tags. (default: 1)
+          fetch-depth: 0
+
+      - name: Build debug binaries
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Initialize dependencies.
+          ./init
+
+          # Build debug binaries.
+          cd build
+          cmake ..
+          make -j$THREADS
+
+      - name: Run leftover CTest tests
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Run leftover CTest tests (all except unit and benchmark tests).
+          cd build
+          ctest -E "(memgraph__unit|memgraph__benchmark)" --output-on-failure
+
+      - name: Run drivers tests
+        run: |
+          ./tests/drivers/run.sh
+
+      - name: Run integration tests
+        run: |
+          tests/integration/run.sh
+
+      - name: Run cppcheck and clang-format
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Run cppcheck and clang-format.
+          cd tools/github
+          ./cppcheck_and_clang_format diff
+
+      - name: Save cppcheck and clang-format errors
+        uses: actions/upload-artifact@v3
+        with:
+          name: "Code coverage"
+          path: tools/github/cppcheck_and_clang_format.txt
+
+  release_build:
+    name: "Release build"
+    runs-on: [self-hosted, Linux, X64, Debian10, BigMemory]
+    env:
+      THREADS: 24
+      MEMGRAPH_ENTERPRISE_LICENSE: ${{ secrets.MEMGRAPH_ENTERPRISE_LICENSE }}
+      MEMGRAPH_ORGANIZATION_NAME: ${{ secrets.MEMGRAPH_ORGANIZATION_NAME }}
+    timeout-minutes: 960
+
+    steps:
+      - name: Set up repository
+        uses: actions/checkout@v3
+        with:
+          # Number of commits to fetch. `0` indicates all history for all
+          # branches and tags. (default: 1)
+          fetch-depth: 0
+
+      - name: Build release binaries
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Initialize dependencies.
+          ./init
+
+          # Set default build_type to Release
+          INPUT_BUILD_TYPE=${{ github.event.inputs.build_type }}
+          BUILD_TYPE=${INPUT_BUILD_TYPE:-"Release"}
+
+          # Build release binaries.
+          cd build
+          cmake -DCMAKE_BUILD_TYPE=$BUILD_TYPE ..
+          make -j$THREADS
+
+      - name: Create enterprise DEB package
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          cd build
+
+          # create mgconsole
+          # we use the -B to force the build
+          make -j$THREADS -B mgconsole
+
+          # Create enterprise DEB package.
+          mkdir output && cd output
+          cpack -G DEB --config ../CPackConfig.cmake
+
+      - name: Save enterprise DEB package
+        uses: actions/upload-artifact@v3
+        with:
+          name: "Enterprise DEB package"
+          path: build/output/memgraph*.deb
+
+      - name: Run micro benchmark tests
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Run micro benchmark tests.
+          cd build
+          # The `eval` benchmark needs a large stack limit.
+          ulimit -s 262144
+          ctest -R memgraph__benchmark -V
+
+      - name: Run macro benchmark tests
+        run: |
+          cd tests/macro_benchmark
+          ./harness QuerySuite MemgraphRunner \
+            --groups aggregation 1000_create unwind_create dense_expand match \
+            --no-strict
+
+      - name: Run parallel macro benchmark tests
+        run: |
+          cd tests/macro_benchmark
+          ./harness QueryParallelSuite MemgraphRunner \
+            --groups aggregation_parallel create_parallel bfs_parallel \
+            --num-database-workers 9 --num-clients-workers 30 \
+            --no-strict
+
+      - name: Run GQL Behave tests
+        run: |
+          cd tests
+          ./setup.sh /opt/toolchain-v4/activate
+          cd gql_behave
+          ./continuous_integration
+
+      - name: Save quality assurance status
+        uses: actions/upload-artifact@v3
+        with:
+          name: "GQL Behave Status"
+          path: |
+            tests/gql_behave/gql_behave_status.csv
+            tests/gql_behave/gql_behave_status.html
+
+      - name: Run unit tests
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Run unit tests.
+          cd build
+          ctest -R memgraph__unit --output-on-failure
+
+      - name: Run e2e tests
+        run: |
+          cd tests
+          ./setup.sh /opt/toolchain-v4/activate
+          source ve3/bin/activate_e2e
+          cd e2e
+          ./run.sh
+
+      - name: Run stress test (plain)
+        run: |
+          cd tests/stress
+          ./continuous_integration
+
+      - name: Run stress test (SSL)
+        run: |
+          cd tests/stress
+          ./continuous_integration --use-ssl
+
+      - name: Run stress test (large)
+        run: |
+          cd tests/stress
+          ./continuous_integration --large-dataset
+
+      - name: Run durability test (plain)
+        run: |
+          cd tests/stress
+          source ve3/bin/activate
+          python3 durability --num-steps 5
+
+      - name: Run durability test (large)
+        run: |
+          cd tests/stress
+          source ve3/bin/activate
+          python3 durability --num-steps 20
+
+  release_jepsen_test:
+    name: "Release Jepsen Test"
+    runs-on: [self-hosted, Linux, X64, Debian10, JepsenControl]
+    env:
+      THREADS: 24
+      MEMGRAPH_ENTERPRISE_LICENSE: ${{ secrets.MEMGRAPH_ENTERPRISE_LICENSE }}
+      MEMGRAPH_ORGANIZATION_NAME: ${{ secrets.MEMGRAPH_ORGANIZATION_NAME }}
+    timeout-minutes: 60
+
+    steps:
+      - name: Set up repository
+        uses: actions/checkout@v3
+        with:
+          # Number of commits to fetch. `0` indicates all history for all
+          # branches and tags. (default: 1)
+          fetch-depth: 0
+
+      - name: Build release binaries
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+          # Initialize dependencies.
+          ./init
+
+          # Set default build_type to Release
+          INPUT_BUILD_TYPE=${{ github.event.inputs.build_type }}
+          BUILD_TYPE=${INPUT_BUILD_TYPE:-"Release"}
+
+          # Build only memgraph release binary.
+          cd build
+          cmake -DCMAKE_BUILD_TYPE=$BUILD_TYPE ..
+          make -j$THREADS memgraph
+
+      - name: Run Jepsen tests
+        run: |
+          cd tests/jepsen
+          ./run.sh test-all-individually --binary ../../build/memgraph --ignore-run-stdout-logs --ignore-run-stderr-logs
+
+      - name: Save Jepsen report
+        uses: actions/upload-artifact@v3
+        if: ${{ always() }}
+        with:
+          name: "Jepsen Report"
+          path: tests/jepsen/Jepsen.tar.gz

.github/workflows/release_docker.yaml

@@ -0,0 +1,69 @@
+name: Publish Docker images
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: "Memgraph binary version to publish on DockerHub."
+        required: true
+      force_release:
+        type: boolean
+        required: false
+        default: false
+
+jobs:
+  docker_publish:
+    runs-on: ubuntu-latest
+    env:
+      DOCKER_ORGANIZATION_NAME: memgraph
+      DOCKER_REPOSITORY_NAME: memgraph
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Download memgraph binary
+        run: |
+          cd release/docker
+          curl -L https://download.memgraph.com/memgraph/v${{ github.event.inputs.version }}/debian-11/memgraph_${{ github.event.inputs.version }}-1_amd64.deb > memgraph-amd64.deb
+          curl -L https://download.memgraph.com/memgraph/v${{ github.event.inputs.version }}/debian-11-aarch64/memgraph_${{ github.event.inputs.version }}-1_arm64.deb > memgraph-arm64.deb
+
+      - name: Check if specified version is already pushed
+        run: |
+          EXISTS=$(docker manifest inspect $DOCKER_ORGANIZATION_NAME/$DOCKER_REPOSITORY_NAME:${{ github.event.inputs.version }} > /dev/null; echo $?)
+          echo $EXISTS
+          if [[ ${EXISTS} -eq 0 ]]; then
+              echo 'The specified version has been already released to DockerHub.'
+              if [[ ${{ github.event.inputs.force_release }} = true ]]; then
+                echo 'Forcing the release!'
+              else
+                echo 'Stopping the release!'
+                exit 1
+              fi
+          else
+              echo 'All good the specified version has not been release to DockerHub.'
+          fi
+
+      - name: Build & push docker images
+        run: |
+          cd release/docker
+          docker buildx build \
+          --build-arg BINARY_NAME="memgraph-" \
+          --build-arg EXTENSION="deb" \
+          --platform linux/amd64,linux/arm64 \
+          --tag $DOCKER_ORGANIZATION_NAME/$DOCKER_REPOSITORY_NAME:${{ github.event.inputs.version }} \
+          --tag $DOCKER_ORGANIZATION_NAME/$DOCKER_REPOSITORY_NAME:latest \
+          --file memgraph_deb.dockerfile \
+          --push .

.github/workflows/release_mgbench_client.yaml

@@ -0,0 +1,63 @@
+name: "Mgbench Bolt Client Publish Docker Image"
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: "Mgbench bolt client version to publish on Dockerhub."
+        required: true
+      force_release:
+        type: boolean
+        required: false
+        default: false
+
+jobs:
+  mgbench_docker_publish:
+    runs-on: ubuntu-latest
+    env:
+      DOCKER_ORGANIZATION_NAME: memgraph
+      DOCKER_REPOSITORY_NAME: mgbench-client
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Check if specified version is already pushed
+        run: |
+          EXISTS=$(docker manifest inspect $DOCKER_ORGANIZATION_NAME/$DOCKER_REPOSITORY_NAME:${{ github.event.inputs.version }} > /dev/null; echo $?)
+          echo $EXISTS
+          if [[ ${EXISTS} -eq 0 ]]; then
+              echo 'The specified version has been already released to DockerHub.'
+              if [[ ${{ github.event.inputs.force_release }} = true ]]; then
+                echo 'Forcing the release!'
+              else
+                echo 'Stopping the release!'
+                exit 1
+              fi
+          else
+              echo 'All good the specified version has not been release to DockerHub.'
+          fi
+
+      - name: Build & push docker images
+        run: |
+          cd tests/mgbench
+          docker buildx build \
+          --build-arg TOOLCHAIN_VERSION=toolchain-v4 \
+          --platform linux/amd64,linux/arm64 \
+          --tag $DOCKER_ORGANIZATION_NAME/$DOCKER_REPOSITORY_NAME:${{ github.event.inputs.version }} \
+          --tag $DOCKER_ORGANIZATION_NAME/$DOCKER_REPOSITORY_NAME:latest \
+          --file Dockerfile.mgbench_client \
+          --push .

.github/workflows/release_ubuntu2004.yaml

@@ -0,0 +1,317 @@
+name: Release Ubuntu 20.04
+
+on:
+  workflow_dispatch:
+    inputs:
+      build_type:
+        type: choice
+        description: "Memgraph Build type. Default value is Release."
+        default: 'Release'
+        options:
+          - Release
+          - RelWithDebInfo
+
+  schedule:
+    - cron: "0 22 * * *"
+
+jobs:
+  community_build:
+    name: "Community build"
+    runs-on: [self-hosted, Linux, X64, Ubuntu20.04]
+    env:
+      THREADS: 24
+      MEMGRAPH_ENTERPRISE_LICENSE: ${{ secrets.MEMGRAPH_ENTERPRISE_LICENSE }}
+      MEMGRAPH_ORGANIZATION_NAME: ${{ secrets.MEMGRAPH_ORGANIZATION_NAME }}
+    timeout-minutes: 960
+
+    steps:
+      - name: Set up repository
+        uses: actions/checkout@v3
+        with:
+          # Number of commits to fetch. `0` indicates all history for all
+          # branches and tags. (default: 1)
+          fetch-depth: 0
+
+      - name: Build community binaries
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Initialize dependencies.
+          ./init
+
+          # Set default build_type to Release
+          INPUT_BUILD_TYPE=${{ github.event.inputs.build_type }}
+          BUILD_TYPE=${INPUT_BUILD_TYPE:-"Release"}
+
+          # Build community binaries.
+          cd build
+          cmake -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DMG_ENTERPRISE=OFF ..
+          make -j$THREADS
+
+      - name: Run unit tests
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Run unit tests.
+          cd build
+          ctest -R memgraph__unit --output-on-failure
+
+  coverage_build:
+    name: "Coverage build"
+    runs-on: [self-hosted, Linux, X64, Ubuntu20.04]
+    env:
+      THREADS: 24
+      MEMGRAPH_ENTERPRISE_LICENSE: ${{ secrets.MEMGRAPH_ENTERPRISE_LICENSE }}
+      MEMGRAPH_ORGANIZATION_NAME: ${{ secrets.MEMGRAPH_ORGANIZATION_NAME }}
+
+    steps:
+      - name: Set up repository
+        uses: actions/checkout@v3
+        with:
+          # Number of commits to fetch. `0` indicates all history for all
+          # branches and tags. (default: 1)
+          fetch-depth: 0
+
+      - name: Build coverage binaries
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Initialize dependencies.
+          ./init
+
+          # Build coverage binaries.
+          cd build
+          cmake -DTEST_COVERAGE=ON ..
+          make -j$THREADS memgraph__unit
+
+      - name: Run unit tests
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Run unit tests.
+          cd build
+          ctest -R memgraph__unit --output-on-failure
+
+      - name: Compute code coverage
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Compute code coverage.
+          cd tools/github
+          ./coverage_convert
+
+          # Package code coverage.
+          cd generated
+          tar -czf code_coverage.tar.gz coverage.json html report.json summary.rmu
+
+      - name: Save code coverage
+        uses: actions/upload-artifact@v3
+        with:
+          name: "Code coverage"
+          path: tools/github/generated/code_coverage.tar.gz
+
+  debug_build:
+    name: "Debug build"
+    runs-on: [self-hosted, Linux, X64, Ubuntu20.04]
+    env:
+      THREADS: 24
+      MEMGRAPH_ENTERPRISE_LICENSE: ${{ secrets.MEMGRAPH_ENTERPRISE_LICENSE }}
+      MEMGRAPH_ORGANIZATION_NAME: ${{ secrets.MEMGRAPH_ORGANIZATION_NAME }}
+
+    steps:
+      - name: Set up repository
+        uses: actions/checkout@v3
+        with:
+          # Number of commits to fetch. `0` indicates all history for all
+          # branches and tags. (default: 1)
+          fetch-depth: 0
+
+      - name: Build debug binaries
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Initialize dependencies.
+          ./init
+
+          # Build debug binaries.
+          cd build
+          cmake ..
+          make -j$THREADS
+
+      - name: Run leftover CTest tests
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Run leftover CTest tests (all except unit and benchmark tests).
+          cd build
+          ctest -E "(memgraph__unit|memgraph__benchmark)" --output-on-failure
+
+      - name: Run drivers tests
+        run: |
+          ./tests/drivers/run.sh
+
+      - name: Run integration tests
+        run: |
+          tests/integration/run.sh
+
+      - name: Run cppcheck and clang-format
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Run cppcheck and clang-format.
+          cd tools/github
+          ./cppcheck_and_clang_format diff
+
+      - name: Save cppcheck and clang-format errors
+        uses: actions/upload-artifact@v3
+        with:
+          name: "Code coverage"
+          path: tools/github/cppcheck_and_clang_format.txt
+
+  release_build:
+    name: "Release build"
+    runs-on: [self-hosted, Linux, X64, Ubuntu20.04]
+    env:
+      THREADS: 24
+      MEMGRAPH_ENTERPRISE_LICENSE: ${{ secrets.MEMGRAPH_ENTERPRISE_LICENSE }}
+      MEMGRAPH_ORGANIZATION_NAME: ${{ secrets.MEMGRAPH_ORGANIZATION_NAME }}
+    timeout-minutes: 960
+
+    steps:
+      - name: Set up repository
+        uses: actions/checkout@v3
+        with:
+          # Number of commits to fetch. `0` indicates all history for all
+          # branches and tags. (default: 1)
+          fetch-depth: 0
+
+      - name: Build release binaries
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Initialize dependencies.
+          ./init
+
+          # Set default build_type to Release
+          INPUT_BUILD_TYPE=${{ github.event.inputs.build_type }}
+          BUILD_TYPE=${INPUT_BUILD_TYPE:-"Release"}
+
+          # Build release binaries.
+          cd build
+          cmake -DCMAKE_BUILD_TYPE=$BUILD_TYPE ..
+          make -j$THREADS
+
+      - name: Create enterprise DEB package
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          cd build
+
+          # create mgconsole
+          # we use the -B to force the build
+          make -j$THREADS -B mgconsole
+
+          # Create enterprise DEB package.
+          mkdir output && cd output
+          cpack -G DEB --config ../CPackConfig.cmake
+
+      - name: Save enterprise DEB package
+        uses: actions/upload-artifact@v3
+        with:
+          name: "Enterprise DEB package"
+          path: build/output/memgraph*.deb
+
+      - name: Run micro benchmark tests
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Run micro benchmark tests.
+          cd build
+          # The `eval` benchmark needs a large stack limit.
+          ulimit -s 262144
+          ctest -R memgraph__benchmark -V
+
+      - name: Run macro benchmark tests
+        run: |
+          cd tests/macro_benchmark
+          ./harness QuerySuite MemgraphRunner \
+            --groups aggregation 1000_create unwind_create dense_expand match \
+            --no-strict
+
+      - name: Run parallel macro benchmark tests
+        run: |
+          cd tests/macro_benchmark
+          ./harness QueryParallelSuite MemgraphRunner \
+            --groups aggregation_parallel create_parallel bfs_parallel \
+            --num-database-workers 9 --num-clients-workers 30 \
+            --no-strict
+
+      - name: Run GQL Behave tests
+        run: |
+          cd tests
+          ./setup.sh /opt/toolchain-v4/activate
+          cd gql_behave
+          ./continuous_integration
+
+      - name: Save quality assurance status
+        uses: actions/upload-artifact@v3
+        with:
+          name: "GQL Behave Status"
+          path: |
+            tests/gql_behave/gql_behave_status.csv
+            tests/gql_behave/gql_behave_status.html
+
+      - name: Run unit tests
+        run: |
+          # Activate toolchain.
+          source /opt/toolchain-v4/activate
+
+          # Run unit tests.
+          cd build
+          ctest -R memgraph__unit --output-on-failure
+
+      - name: Run e2e tests
+        run: |
+          cd tests
+          ./setup.sh /opt/toolchain-v4/activate
+          source ve3/bin/activate_e2e
+          cd e2e
+          ./run.sh
+
+      - name: Run stress test (plain)
+        run: |
+          cd tests/stress
+          ./continuous_integration
+
+      - name: Run stress test (SSL)
+        run: |
+          cd tests/stress
+          ./continuous_integration --use-ssl
+
+      - name: Run stress test (large)
+        run: |
+          cd tests/stress
+          ./continuous_integration --large-dataset
+
+      - name: Run durability test (plain)
+        run: |
+          cd tests/stress
+          source ve3/bin/activate
+          python3 durability --num-steps 5
+
+      - name: Run durability test (large)
+        run: |
+          cd tests/stress
+          source ve3/bin/activate
+          python3 durability --num-steps 20

.github/workflows/upload_to_s3.yaml

@@ -0,0 +1,32 @@
+name: Upload Package All artifacts to S3
+
+on:
+  workflow_dispatch:
+    inputs:
+      memgraph_version:
+        description: "Memgraph version to upload as. Format: 'X.Y.Z'"
+        required: true
+      run_number:
+        description: "# of the package_all workflow run to upload artifacts from. Format: '#XYZ'"
+        required: true
+
+jobs:
+  upload-to-s3:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download artifacts
+        uses: dawidd6/action-download-artifact@v2
+        with:
+          workflow: package_all.yaml
+          workflow_conclusion: success
+          run_number: "${{ github.event.inputs.run_number }}"
+          path: build/output/release
+      - name: Upload to S3
+        uses: jakejarvis/s3-sync-action@v0.5.1
+        env:
+          AWS_S3_BUCKET: "download.memgraph.com"
+          AWS_ACCESS_KEY_ID: ${{ secrets.S3_AWS_ACCESS_KEY_ID }}
+          AWS_SECRET_ACCESS_KEY: ${{ secrets.S3_AWS_SECRET_ACCESS_KEY }}
+          AWS_REGION: "eu-west-1"
+          SOURCE_DIR: "build/output/release"
+          DEST_DIR: "memgraph/v${{ github.event.inputs.memgraph_version }}/"

.gitignore

@@ -16,8 +16,7 @@
 .ycm_extra_conf.pyc
 .temp/
 Testing/
-build
-build/
+/build*/
 release/examples/build
 cmake-build-*
 cmake/DownloadProject/
@@ -29,3 +28,37 @@ ve3/
 perf.data*
 TAGS
 *.apollo_measurements
+
+# Lisp compiled object code
+*.fas
+*.fasl
+
+src/database/distributed/serialization.hpp
+src/database/single_node_ha/serialization.hpp
+src/distributed/bfs_rpc_messages.hpp
+src/distributed/coordination_rpc_messages.hpp
+src/distributed/data_rpc_messages.hpp
+src/distributed/durability_rpc_messages.hpp
+src/distributed/dynamic_worker_rpc_messages.hpp
+src/distributed/index_rpc_messages.hpp
+src/distributed/plan_rpc_messages.hpp
+src/distributed/pull_produce_rpc_messages.hpp
+src/distributed/storage_gc_rpc_messages.hpp
+src/distributed/token_sharing_rpc_messages.hpp
+src/distributed/updates_rpc_messages.hpp
+src/durability/distributed/state_delta.hpp
+src/durability/single_node/state_delta.hpp
+src/durability/single_node_ha/state_delta.hpp
+src/query/distributed/frontend/semantic/symbol_serialization.hpp
+src/query/distributed/plan/ops.hpp
+src/raft/log_entry.hpp
+src/raft/raft_rpc_messages.hpp
+src/raft/snapshot_metadata.hpp
+src/raft/storage_info_rpc_messages.hpp
+src/stats/stats_rpc_messages.hpp
+src/storage/distributed/rpc/concurrent_id_mapper_rpc_messages.hpp
+src/transactions/distributed/engine_rpc_messages.hpp
+/tests/manual/js/transaction_timeout/package-lock.json
+/tests/manual/js/transaction_timeout/node_modules/
+.vscode/
+src/query/frontend/opencypher/grammar/.antlr/*

.pre-commit-config.yaml

@@ -0,0 +1,35 @@
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.4.0
+    hooks:
+      - id: check-yaml
+        args: [--allow-multiple-documents]
+      - id: end-of-file-fixer
+      - id: trailing-whitespace
+  - repo: https://github.com/psf/black
+    rev: 23.1.0
+    hooks:
+      - id: black
+  - repo: https://github.com/pycqa/isort
+    rev: 5.12.0
+    hooks:
+      - id: isort
+        name: isort (python)
+        args: ["--profile", "black"]
+  - repo: https://github.com/pre-commit/mirrors-clang-format
+    rev: v13.0.0
+    hooks:
+      - id: clang-format
+#  - repo: local
+#    hooks:
+#      - id: clang-tidy
+#        name: clang-tidy
+#        description: Runs clang-tidy and checks for errors
+#        entry: python ./tools/pre-commit/clang-tidy.py
+#        language: python
+#        files: ^src/
+#        types: [c++, text]
+#        fail_fast: true
+#        require_serial: true
+#        args: [--compile_commands_path=build]
+#        pass_filenames: false

.sonarcloud.properties

@@ -0,0 +1,22 @@
+# Path to sources
+sonar.sources = .
+# sonar.exclusions=
+sonar.inclusions=src,include,query_modules
+
+# Path to tests
+sonar.tests = tests/
+# sonar.test.exclusions=
+# sonar.test.inclusions=
+
+# Source encoding
+# sonar.sourceEncoding=
+
+# Exclusions for copy-paste detection
+# sonar.cpd.exclusions=
+
+# Python version (for python projects only)
+# sonar.python.version=
+
+# C++ standard version (for C++ projects only)
+# If not specified, it defaults to the latest supported standard
+# sonar.cfamily.reportingCppStandardOverride=c++98|c++11|c++14|c++17|c++20

.ycm_extra_conf.py

@@ -1,168 +0,0 @@
-import os
-import os.path
-import fnmatch
-import logging
-import ycm_core
-
-BASE_FLAGS = [
-    '-Wall',
-    '-Wextra',
-    '-Werror',
-    '-Wno-long-long',
-    '-Wno-variadic-macros',
-    '-fexceptions',
-    '-ferror-limit=10000',
-    '-std=c++1z',
-    '-xc++',
-    '-I/usr/lib/',
-    '-I/usr/include/',
-    '-I./src',
-    '-I./include',
-    '-I./libs/fmt',
-    '-I./libs/yaml-cpp',
-    '-I./libs/glog/include',
-    '-I./libs/googletest/googletest/include',
-    '-I./libs/googletest/googlemock/include',
-    '-I./libs/benchmark/include',
-    '-I./libs/cereal/include',
-    # We include cppitertools headers directly from libs directory.
-    '-I./libs',
-    '-I./libs/rapidcheck/include',
-    '-I./libs/antlr4/runtime/Cpp/runtime/src',
-    '-I./libs/gflags/include',
-    '-I./experimental/distributed/src',
-    '-I./libs/postgresql/include',
-    '-I./build/include'
-]
-
-SOURCE_EXTENSIONS = [
-    '.cpp',
-    '.cxx',
-    '.cc',
-    '.c',
-    '.m',
-    '.mm'
-]
-
-HEADER_EXTENSIONS = [
-    '.h',
-    '.hxx',
-    '.hpp',
-    '.hh'
-]
-
-# set the working directory of YCMD to be this file
-os.chdir(os.path.dirname(os.path.realpath(__file__)))
-
-def IsHeaderFile(filename):
-    extension = os.path.splitext(filename)[1]
-    return extension in HEADER_EXTENSIONS
-
-def GetCompilationInfoForFile(database, filename):
-    if IsHeaderFile(filename):
-        basename = os.path.splitext(filename)[0]
-        for extension in SOURCE_EXTENSIONS:
-            replacement_file = basename + extension
-            if os.path.exists(replacement_file):
-                compilation_info = database.GetCompilationInfoForFile(replacement_file)
-                if compilation_info.compiler_flags_:
-                    return compilation_info
-        return None
-    return database.GetCompilationInfoForFile(filename)
-
-def FindNearest(path, target):
-    candidate = os.path.join(path, target)
-    if(os.path.isfile(candidate) or os.path.isdir(candidate)):
-        logging.info("Found nearest " + target + " at " + candidate)
-        return candidate;
-    else:
-        parent = os.path.dirname(os.path.abspath(path));
-        if(parent == path):
-            raise RuntimeError("Could not find " + target);
-        return FindNearest(parent, target)
-
-def MakeRelativePathsInFlagsAbsolute(flags, working_directory):
-    if not working_directory:
-        return list(flags)
-    new_flags = []
-    make_next_absolute = False
-    path_flags = [ '-isystem', '-I', '-iquote', '--sysroot=' ]
-    for flag in flags:
-        new_flag = flag
-
-        if make_next_absolute:
-            make_next_absolute = False
-            if not flag.startswith('/'):
-                new_flag = os.path.join(working_directory, flag)
-
-        for path_flag in path_flags:
-            if flag == path_flag:
-                make_next_absolute = True
-                break
-
-            if flag.startswith(path_flag):
-                path = flag[ len(path_flag): ]
-                new_flag = path_flag + os.path.join(working_directory, path)
-                break
-
-        if new_flag:
-            new_flags.append(new_flag)
-    return new_flags
-
-
-def FlagsForClangComplete(root):
-    try:
-        clang_complete_path = FindNearest(root, '.clang_complete')
-        clang_complete_flags = open(clang_complete_path, 'r').read().splitlines()
-        return clang_complete_flags
-    except:
-        return None
-
-def FlagsForInclude(root):
-    try:
-        include_path = FindNearest(root, 'include')
-        flags = []
-        for dirroot, dirnames, filenames in os.walk(include_path):
-            for dir_path in dirnames:
-                real_path = os.path.join(dirroot, dir_path)
-                flags = flags + ["-I" + real_path]
-        return flags
-    except:
-        return None
-
-def FlagsForCompilationDatabase(root, filename):
-    try:
-        compilation_db_path = FindNearest(root, 'compile_commands.json')
-        compilation_db_dir = os.path.dirname(compilation_db_path)
-        logging.info("Set compilation database directory to " + compilation_db_dir)
-        compilation_db =  ycm_core.CompilationDatabase(compilation_db_dir)
-        if not compilation_db:
-            logging.info("Compilation database file found but unable to load")
-            return None
-        compilation_info = GetCompilationInfoForFile(compilation_db, filename)
-        if not compilation_info:
-            logging.info("No compilation info for " + filename + " in compilation database")
-            return None
-        return MakeRelativePathsInFlagsAbsolute(
-            compilation_info.compiler_flags_,
-            compilation_info.compiler_working_dir_)
-    except:
-        return None
-
-def FlagsForFile(filename):
-    root = os.path.realpath(filename);
-    compilation_db_flags = FlagsForCompilationDatabase(root, filename)
-    if compilation_db_flags:
-        final_flags = compilation_db_flags
-    else:
-        final_flags = BASE_FLAGS
-        clang_flags = FlagsForClangComplete(root)
-        if clang_flags:
-            final_flags = final_flags + clang_flags
-        include_flags = FlagsForInclude(root)
-        if include_flags:
-            final_flags = final_flags + include_flags
-    return {
-        'flags': final_flags,
-        'do_cache': True
-    }

ADRs/001_tantivy.md

@@ -0,0 +1,32 @@
+# Tantivy ADR
+
+**Author**
+Marko Budiselic (github.com/gitbuda)
+
+**Status**
+APPROVED
+
+**Date**
+January 5, 2024
+
+**Problem**
+
+For some of Memgraph workloads, text search is a required feature. We don't
+want to build a new text search engine because that's not Memgraph's core
+value.
+
+**Criteria**
+
+- easy integration with our C++ codebase
+- ability to operate in-memory and on-disk
+- sufficient features (regex, full-text search, fuzzy search, aggregations over
+  text data)
+- production-ready
+
+**Decision**
+
+All known C++ libraries are not production-ready. Recent Rust libraries, in
+particular [Tantivy](https://github.com/quickwit-oss/tantivy), seem to provide
+much more features, it is production ready. The way how we'll integrate Tantivy
+into the current Memgraph codebase is via
+[cxx](https://github.com/dtolnay/cxx). **We select Tantivy.**

ADRs/README.md

@@ -0,0 +1,67 @@
+# Architecture Decision Records
+
+Also known as ADRs. This practice has become widespread in many
+high performing engineering teams. It is a technique for communicating
+between software engineers. ADRs provide a clear and documented
+history of architectural choices, ensuring that everyone on the
+team is on the same page. This improves communication and reduces
+misunderstandings. The act of recording decisions encourages
+thoughtful consideration before making choices. This can lead to
+more robust and better-informed architectural decisions.
+
+Links must be created, pointing both to and from the Github Issues
+and/or the Notion Program Management "Initiative" database.
+
+ADRs are complimentary to any tech specs that get written while
+designing a solution. ADRs are very short and to the point, while
+tech specs will include diagrams and can be quite verbose.
+
+## HOWTO
+
+Each ADR will be assigned a monotonically increasing unique numeric
+identifier, which will be zero-padded to 3 digits. Each ADR will
+be in a single markdown file containing no more than one page of
+text, and the filename will start with that unique identifier,
+followed by a camel case phrase summarizing the problem.  For
+example: `001_architecture_decision_records.md` or
+`002_big_integration_cap_theorem.md`.
+
+We want to use an ADR when:
+1. Significant Impact: This includes choices that affect scalability, performance, or fundamental design principles.
+1. Long-Term Ramifications: When a decision is expected to have long-term ramifications or is difficult to reverse.
+1. Architectural Principles: ADRs are suitable for documenting decisions related to architectural principles, frameworks, or patterns that shape the system's structure.
+1. Controversial Choices: When a decision is likely to be controversial or may require justification in the future.
+
+The most senior engineer on a project will evaluate and decide
+whether or not an ADR is needed.
+
+## Do
+
+1. Keep them brief and concise.
+1. Explain the trade-offs.
+1. Each ADR should be about one AD, not multiple ADs
+1. Don't alter existing information in an ADR. Instead, amend the ADR by adding new information, or supersede the ADR by creating a new ADR.
+1. Explain your organization's situation and business priorities.
+1. Include rationale and considerations based on social and skills makeups of your teams.
+1. Include pros and cons that are relevant, and describe them in terms that align with your needs and goals.
+1. Explain what follows from making the decision. This can include the effects, outcomes, outputs, follow ups, and more.
+
+## Don't
+
+1. Try to guess what the executive leader wants, and then attempt to please them. Be objective.
+1. Try to solve everything all at once. A pretty good solution now is MUCH BETTER than a perfect solution later. Carpe diem!
+1. Hide any doubts or unanswered questions.
+1. Make it a sales pitch. Everything has upsides and downsides - be authentic and honest about them.
+1. Perform merely a superficial investigation. If an ADR doesn't call for some deep thinking, then it probably shouldn't exist.
+1. Ignore the long-term costs such as performance, tech debt or hardware and maintenance.
+1. Get tunnel vision where creative or surprising approaches are not explored.
+
+# Template - use the format below for each new ADR
+
+1. **Author** - who has written the ADR
+1. **Status** - one of: PROPOSED, ACCEPTED, REJECTED, SUPERSEDED-BY or DEPRECATED
+1. **Date** - when the status was most recently updated
+1. **Problem** - a concise paragraph explaining the context
+1. **Criteria** - a list of the two or three metrics by which the solution was evaluated, and their relative weights (importance)
+1. **Decision** - what was chosen as the way forward, and what the consequences are of the decision
+

CHANGELOG.md

@@ -1,148 +1,5 @@
-# Change Log
+Change Log for all versions of Memgraph can be found on-line at
+https://docs.memgraph.com/memgraph/changelog
 
-## v0.10.0
-
-### Breaking Changes
-
-* Snapshot format changed (not backward compatible).
-
-### Major Features and Improvements
-
-* [Enterprise Ed.] Distributed storage and execution
-* `reduce` and `single` functions added to openCypher.
-* `wShortest` edge expansion added to openCypher.
-* Support packaging RPM on CentOS 7.
-
-### Bug Fixes and Other Changes
-
-* Report an error if updating a deleted element.
-* Log an error if reading info on available memory fails.
-* Fix a bug when `MATCH` would stop matching if a result was empty, but later
-  results still contain data to be matched. The simplest case of this was the
-  query: `UNWIND [1,2,3] AS x MATCH (n :Label {prop: x}) RETURN n`. If there
-  was no node `(:Label {prop: 1})`, then the `MATCH` wouldn't even try to find
-  for `x` being 2 or 3.
-* Report an error if trying to compare a property value with something that
-  cannot be stored in a property.
-* Fix crashes in some obscure cases.
-* Add minor performance improvements.
-
-## v0.9.0
-
-### Breaking Changes
-
-* Snapshot format changed (not backward compatible).
-* Snapshot configuration flags changed, general durability flags added.
-
-### Major Features and Improvements
-
-* Write-ahead log added.
-* `nodes` and `relationships` functions added.
-* `UNION` and `UNION ALL` is implemented.
-* Concurrent index creation is now enabled.
-
-### Bug Fixes and Other Changes
-
-
-## v0.8.0
-
-### Major Features and Improvements
-
-* CASE construct (without aggregations).
-* Named path support added.
-* Maps can now be stored as vertex/edge properties.
-* Map indexing supported.
-* `rand` function added.
-* `assert` function added.
-* `counter` and `counterSet` functions added.
-* `indexInfo` function added.
-* `collect` aggregation now supports Map collection.
-* Changed the BFS syntax.
-
-### Bug Fixes and Other Changes
-
-* Use \u to specify 4 digit codepoint and \U for 8 digit
-* Keywords appearing in header (named expressions) keep original case.
-* Our Bolt protocol implementation is now completely compatible with the protocol version 1 specification. (https://boltprotocol.org/v1/)
-* Added a log warning when running out of memory and the `memory_warning_threshold` flag
-* Edges are no longer additionally filtered after expansion.
-
-## v0.7.0
-
-### Major Features and Improvements
-
-* Variable length path `MATCH`.
-* Explicitly started transactions (multi-query transactions).
-* Map literal.
-* Query parameters (except for parameters in place of property maps).
-* `all` function in openCypher.
-* `degree` function in openCypher.
-* User specified transaction execution timeout.
-
-### Bug Fixes and Other Changes
-
-* Concurrent `BUILD INDEX` deadlock now returns an error to the client.
-* A `MATCH` preceeded by `OPTIONAL MATCH` expansion inconsistencies.
-* High concurrency Antlr parsing bug.
-* Indexing improvements.
-* Query stripping and caching speedups.
-
-## v0.6.0
-
-### Major Features and Improvements
-
-* AST caching.
-* Label + property index support.
-* Different logging setup & format.
-
-## v0.5.0
-
-### Major Features and Improvements
-
-* Use label indexes to speed up querying.
-* Generate multiple query plans and use the cost estimator to select the best.
-* Snapshots & Recovery.
-* Abandon old yaml configuration and migrate to gflags.
-* Query stripping & AST caching support.
-
-### Bug Fixes and Other Changes
-
-* Fixed race condition in MVCC. Hints exp+aborted race condition prevented.
-* Fixed conceptual bug in MVCC GC. Evaluate old records w.r.t. the oldest.
-  transaction's id AND snapshot.
-* User friendly error messages thrown from the query engine.
-
-## Build 837
-
-### Bug Fixes and Other Changes
-
-* List indexing supported with preceeding IN (for example in query `RETURN 1 IN [[1,2]][0]`).
-
-## Build 825
-
-### Major Features and Improvements
-
-* RETURN *, count(*), OPTIONAL MATCH, UNWIND, DISTINCT (except DISTINCT in aggregate functions), list indexing and slicing, escaped labels, IN LIST operator, range function.
-
-### Bug Fixes and Other Changes
-
-* TCP_NODELAY -> import should be faster.
-* Clear hint bits.
-
-## Build 783
-
-### Major Features and Improvements
-
-* SKIP, LIMIT, ORDER BY.
-* Math functions.
-* Initial support for MERGE clause.
-
-### Bug Fixes and Other Changes
-
-* Unhandled Lock Timeout Exception.
-
-## Build 755
-
-### Major Features and Improvements
-
-* MATCH, CREATE, WHERE, SET, REMOVE, DELETE.
+All the updates to the Change Log can be made in the following repository:
+https://github.com/memgraph/docs

CMakeLists.txt

@@ -1,6 +1,7 @@
 # MemGraph CMake configuration
 
-cmake_minimum_required(VERSION 3.1)
+cmake_minimum_required(VERSION 3.12)
+cmake_policy(SET CMP0076 NEW)
 
 # !! IMPORTANT !! run ./project_root/init.sh before cmake command
 # to download dependencies
@@ -18,10 +19,12 @@ set_directory_properties(PROPERTIES CLEAN_NO_CUSTOM TRUE)
 # during the code coverage process
 find_program(CCACHE_FOUND ccache)
 option(USE_CCACHE "ccache:" ON)
-message(STATUS "CCache: ${USE_CCACHE}")
 if(CCACHE_FOUND AND USE_CCACHE)
   set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
   set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
+  message(STATUS "CCache: Used")
+else ()
+  message(STATUS "CCache: Not used")
 endif(CCACHE_FOUND AND USE_CCACHE)
 
 # choose a compiler
@@ -31,23 +34,143 @@ find_program(CLANGXX_FOUND clang++)
 if (CLANG_FOUND AND CLANGXX_FOUND)
   set(CMAKE_C_COMPILER ${CLANG_FOUND})
   set(CMAKE_CXX_COMPILER ${CLANGXX_FOUND})
+else()
+  message(FATAL_ERROR "Couldn't find clang and/or clang++!")
 endif()
 
-# Get current commit hash.
-execute_process(
-    OUTPUT_VARIABLE COMMIT_HASH
-    COMMAND git rev-parse --short HEAD
-)
-string(STRIP ${COMMIT_HASH} COMMIT_HASH)
-
 # -----------------------------------------------------------------------------
 
-project(memgraph VERSION 0.9.0)
+project(memgraph LANGUAGES C CXX)
+
+#TODO: upgrade to cmake 3.24 + CheckIPOSupported
+#cmake_policy(SET CMP0138 NEW)
+#include(CheckIPOSupported)
+#check_ipo_supported()
+#set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_Release TRUE)
+#set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RelWithDebInfo TRUE)
+
+# Install licenses.
+install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/licenses/
+        DESTINATION share/doc/memgraph)
+
+# For more information about how to release a new version of Memgraph, see
+# `release/README.md`.
+
+# Option that is used to specify which version of Memgraph should be built. The
+# default is `ON` which causes the build system to build Memgraph Enterprise.
+# Memgraph Community is built if explicitly set to `OFF`.
+option(MG_ENTERPRISE "Build Memgraph Enterprise Edition" ON)
+
+# Set the current version here to override the automatic version detection. The
+# version must be specified as `X.Y.Z`. Primarily used when building new patch
+# versions.
+set(MEMGRAPH_OVERRIDE_VERSION "")
+
+# Custom suffix that this version should have. The suffix can be any arbitrary
+# string. Primarily used when building a version for a specific customer.
+set(MEMGRAPH_OVERRIDE_VERSION_SUFFIX "")
+
+# Variables used to generate the versions.
+if (MG_ENTERPRISE)
+  set(get_version_offering "")
+else()
+  set(get_version_offering "--open-source")
+endif()
+set(get_version_script "${CMAKE_CURRENT_SOURCE_DIR}/release/get_version.py")
+
+# Get version that should be used in the binary.
+execute_process(
+    OUTPUT_VARIABLE MEMGRAPH_VERSION
+    RESULT_VARIABLE MEMGRAPH_VERSION_RESULT
+    COMMAND "${get_version_script}" ${get_version_offering}
+                "${MEMGRAPH_OVERRIDE_VERSION}"
+                "${MEMGRAPH_OVERRIDE_VERSION_SUFFIX}"
+                "--memgraph-root-dir"
+                "${CMAKE_CURRENT_SOURCE_DIR}"
+)
+if(MEMGRAPH_VERSION_RESULT AND NOT MEMGRAPH_VERSION_RESULT EQUAL 0)
+    message(FATAL_ERROR "Unable to get Memgraph version.")
+else()
+    MESSAGE(STATUS "Memgraph version: ${MEMGRAPH_VERSION}")
+endif()
+
+# Get version that should be used in the DEB package.
+execute_process(
+    OUTPUT_VARIABLE MEMGRAPH_VERSION_DEB
+    RESULT_VARIABLE MEMGRAPH_VERSION_DEB_RESULT
+    COMMAND "${get_version_script}" ${get_version_offering}
+                --variant deb
+                "${MEMGRAPH_OVERRIDE_VERSION}"
+                "${MEMGRAPH_OVERRIDE_VERSION_SUFFIX}"
+                "--memgraph-root-dir"
+                "${CMAKE_CURRENT_SOURCE_DIR}"
+)
+if(MEMGRAPH_VERSION_DEB_RESULT AND NOT MEMGRAPH_VERSION_DEB_RESULT EQUAL 0)
+    message(FATAL_ERROR "Unable to get Memgraph DEB version.")
+else()
+    MESSAGE(STATUS "Memgraph DEB version: ${MEMGRAPH_VERSION_DEB}")
+endif()
+
+# Get version that should be used in the RPM package.
+execute_process(
+    OUTPUT_VARIABLE MEMGRAPH_VERSION_RPM
+    RESULT_VARIABLE MEMGRAPH_VERSION_RPM_RESULT
+    COMMAND "${get_version_script}" ${get_version_offering}
+                --variant rpm
+                "${MEMGRAPH_OVERRIDE_VERSION}"
+                "${MEMGRAPH_OVERRIDE_VERSION_SUFFIX}"
+                "--memgraph-root-dir"
+                "${CMAKE_CURRENT_SOURCE_DIR}"
+)
+if(MEMGRAPH_VERSION_RPM_RESULT AND NOT MEMGRAPH_VERSION_RPM_RESULT EQUAL 0)
+    message(FATAL_ERROR "Unable to get Memgraph RPM version.")
+else()
+    MESSAGE(STATUS "Memgraph RPM version: ${MEMGRAPH_VERSION_RPM}")
+endif()
+
+# We want the above variables to be updated each time something is committed to
+# the repository. That is why we include a dependency on the current git HEAD
+# to trigger a new CMake run when the git repository state changes. This is a
+# hack, as CMake doesn't have a mechanism to regenerate variables when
+# something changes (only files can be regenerated).
+# https://cmake.org/pipermail/cmake/2018-October/068389.html
+#
+# The hack in the above link is nearly correct but it has a fatal flaw. The
+# `CMAKE_CONFIGURE_DEPENDS` isn't a `GLOBAL` property, it is instead a
+# `DIRECTORY` property and as such must be set in the `DIRECTORY` scope.
+# https://cmake.org/cmake/help/v3.14/manual/cmake-properties.7.html
+#
+# Unlike the above mentioned hack, we don't use the `.git/index` file. That
+# file changes on every `git add` (even on `git status`) so it triggers
+# unnecessary recalculations of the release version. The release version only
+# changes on every `git commit` or `git checkout`. That is why we watch the
+# following files for changes:
+#   - `.git/HEAD` -> changes each time a `git checkout` is issued
+#   - `.git/refs/heads/...` -> the value in `.git/HEAD` is a branch name (when
+#     you are on a branch) and you have to monitor the file of the specific
+#     branch to detect when a `git commit` was issued
+# More details about the contents of the `.git` directory and the specific
+# files used can be seen here:
+# https://git-scm.com/book/en/v2/Git-Internals-Git-References
+set(git_directory "${CMAKE_SOURCE_DIR}/.git")
+# Check for directory because if the repo is cloned as a git submodule, .git is
+# a file and below code doesn't work.
+if (IS_DIRECTORY "${git_directory}")
+  set_property(DIRECTORY APPEND PROPERTY
+      CMAKE_CONFIGURE_DEPENDS "${git_directory}/HEAD")
+  file(STRINGS "${git_directory}/HEAD" git_head_data)
+  if (git_head_data MATCHES "^ref: ")
+    string(SUBSTRING "${git_head_data}" 5 -1 git_head_ref)
+    set_property(DIRECTORY APPEND PROPERTY
+        CMAKE_CONFIGURE_DEPENDS "${git_directory}/${git_head_ref}")
+  endif()
+endif()
+
 # -----------------------------------------------------------------------------
 
 # setup CMake module path, defines path for include() and find_package()
 # https://cmake.org/cmake/help/latest/variable/CMAKE_MODULE_PATH.html
-set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR}/cmake)
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 # custom function definitions
 include(functions)
 # -----------------------------------------------------------------------------
@@ -62,31 +185,40 @@ add_custom_target(clean_all
 
 # build flags -----------------------------------------------------------------
 
-# TODO: set here 17 once it will be available in the cmake version (3.8)
-# set(CMAKE_CXX_STANDARD 17)
-# set(CMAKE_CXX_STANDARD_REQUIRED ON)
-# For now, explicitly set -std= flag for C++17.
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++1z -Wall \
-    -Werror=switch -Werror=switch-bool -Werror=return-type")
+# Export the compile commands so that we can use clang-tidy. Additional benefit
+# is easier debugging of compilation and linker flags.
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+# c99-designator is disabled because of required mixture of designated and
+# non-designated initializers in Python Query Module code (`py_module.cpp`).
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall \
+    -Werror=switch -Werror=switch-bool -Werror=return-type \
+    -Werror=return-stack-address \
+    -Wno-c99-designator -Wmissing-field-initializers \
+    -DBOOST_ASIO_USE_TS_EXECUTOR_AS_DEFAULT")
 
 # Don't omit frame pointer in RelWithDebInfo, for additional callchain debug.
 set(CMAKE_CXX_FLAGS_RELWITHDEBINFO
     "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -fno-omit-frame-pointer")
 
 # Statically link libgcc and libstdc++, the GCC allows this according to:
+# https://gcc.gnu.org/onlinedocs/gcc-10.2.0/libstdc++/manual/manual/license.html
 # https://www.gnu.org/licenses/gcc-exception-faq.html
-# Last checked for gcc-7.3, we are using gcc-6.3 on build machines (license is
-# valid there also).
+# Last checked for gcc-10.2 which we are using on the build machines.
 # ** If we change versions, recheck this! **
 # ** Static linking is allowed only for executables! **
 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -static-libgcc -static-libstdc++")
 
-# Use gold linker to speedup build
-set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fuse-ld=gold")
+# Use lld linker to speedup build
+add_link_options(-fuse-ld=lld) # TODO: use mold linker
 
 # release flags
 set(CMAKE_CXX_FLAGS_RELEASE "-O2 -DNDEBUG")
 
+SET(CMAKE_CXX_LINK_FLAGS "${CMAKE_CXX_LINK_FLAGS} -pthread")
+
 #debug flags
 set(PREFERRED_DEBUGGER "gdb" CACHE STRING
     "Tunes the debug output for your preferred debugger (gdb or lldb).")
@@ -102,15 +234,7 @@ else()
     set(CMAKE_CXX_FLAGS_DEBUG "-g")
 endif()
 
-# ndebug
-option(NDEBUG "No debug" OFF)
-message(STATUS "NDEBUG: ${NDEBUG} (be careful CMAKE_BUILD_TYPE can also \
-append this flag)")
-if(NDEBUG)
-    add_definitions( -DNDEBUG )
-endif()
 # -----------------------------------------------------------------------------
-
 # default build type is debug
 if (NOT CMAKE_BUILD_TYPE)
     set(CMAKE_BUILD_TYPE "Debug")
@@ -118,15 +242,22 @@ endif()
 message(STATUS "CMake build type: ${CMAKE_BUILD_TYPE}")
 # -----------------------------------------------------------------------------
 
+add_definitions( -DCMAKE_BUILD_TYPE_NAME="${CMAKE_BUILD_TYPE}")
+
+if (NOT MG_ARCH)
+    set(MG_ARCH_DESCR "Host architecture to build Memgraph on. Supported values are x86_64, ARM64.")
+    if (${CMAKE_HOST_SYSTEM_PROCESSOR} MATCHES "aarch64")
+        set(MG_ARCH "ARM64" CACHE STRING ${MG_ARCH_DESCR})
+    else()
+        set(MG_ARCH "x86_64" CACHE STRING ${MG_ARCH_DESCR})
+    endif()
+endif()
+message(STATUS "MG_ARCH: ${MG_ARCH}")
+
 # setup external dependencies -------------------------------------------------
 
 # threading
 find_package(Threads REQUIRED)
-
-# optional Ltalloc
-option(USE_LTALLOC "Use Ltalloc instead of default allocator (default OFF). \
-Set this to ON to link with Ltalloc." OFF)
-
 # optional readline
 option(USE_READLINE "Use GNU Readline library if available (default ON). \
 Set this to OFF to prevent linking with Readline even if it is available." ON)
@@ -137,55 +268,28 @@ if (USE_READLINE)
   endif()
 endif()
 
-set(Boost_USE_STATIC_LIBS ON)
-find_package(Boost 1.62 REQUIRED COMPONENTS iostreams serialization)
-
 set(libs_dir ${CMAKE_SOURCE_DIR}/libs)
 add_subdirectory(libs EXCLUDE_FROM_ALL)
 
-include_directories(SYSTEM ${GFLAGS_INCLUDE_DIR})
-include_directories(SYSTEM ${GLOG_INCLUDE_DIR})
-include_directories(SYSTEM ${FMT_INCLUDE_DIR})
-include_directories(SYSTEM ${ANTLR4_INCLUDE_DIR})
-# -----------------------------------------------------------------------------
-
-# openCypher parser -----------------------------------------------------------
-set(opencypher_frontend ${CMAKE_SOURCE_DIR}/src/query/frontend/opencypher)
-set(opencypher_generated ${opencypher_frontend}/generated)
-set(opencypher_grammar ${opencypher_frontend}/grammar/Cypher.g4)
-
-# enumerate all files that are generated from antlr
-set(antlr_opencypher_generated_src
-   ${opencypher_generated}/CypherLexer.cpp
-   ${opencypher_generated}/CypherParser.cpp
-   ${opencypher_generated}/CypherBaseVisitor.cpp
-   ${opencypher_generated}/CypherVisitor.cpp
-)
-
-# Provide a command to generate sources if missing. If this were a
-# custom_target, it would always run and we don't want that.
-add_custom_command(OUTPUT ${antlr_opencypher_generated_src}
-  COMMAND
-  ${CMAKE_COMMAND} -E make_directory ${opencypher_generated}
-  COMMAND
-  java -jar ${CMAKE_SOURCE_DIR}/libs/antlr-4.6-complete.jar -Dlanguage=Cpp -visitor -o ${opencypher_generated} -package antlropencypher ${opencypher_grammar}
-  WORKING_DIRECTORY "${CMAKE_BINARY_DIR}"
-  DEPENDS ${opencypher_grammar})
-
-# add custom target for generation
-add_custom_target(generate_opencypher_parser
-  DEPENDS ${antlr_opencypher_generated_src})
-
-add_library(antlr_opencypher_parser_lib STATIC ${antlr_opencypher_generated_src})
-target_link_libraries(antlr_opencypher_parser_lib antlr4)
-# -----------------------------------------------------------------------------
-
 # Optional subproject configuration -------------------------------------------
-option(POC "Build proof of concept binaries" OFF)
-option(EXPERIMENTAL "Build experimental binaries" OFF)
-option(CUSTOMERS "Build customer binaries" OFF)
 option(TEST_COVERAGE "Generate coverage reports from running memgraph" OFF)
 option(TOOLS "Build tools binaries" ON)
+option(QUERY_MODULES "Build query modules containing custom procedures" ON)
+option(ASAN "Build with Address Sanitizer. To get a reasonable performance option should be used only in Release or RelWithDebInfo build " OFF)
+option(TSAN "Build with Thread Sanitizer. To get a reasonable performance option should be used only in Release or RelWithDebInfo build " OFF)
+option(UBSAN "Build with Undefined Behaviour Sanitizer" OFF)
+
+# Build feature flags
+option(MG_EXPERIMENTAL_REPLICATION_MULTITENANCY "Feature flag for experimental replicaition of multitenacy" OFF)
+
+if (NOT MG_ENTERPRISE AND MG_EXPERIMENTAL_REPLICATION_MULTITENANCY)
+    set(MG_EXPERIMENTAL_REPLICATION_MULTITENANCY OFF)
+    message(FATAL_ERROR "MG_EXPERIMENTAL_REPLICATION_MULTITENANCY with community edition build isn't possible")
+endif ()
+
+if (MG_EXPERIMENTAL_REPLICATION_MULTITENANCY)
+    add_compile_definitions(MG_EXPERIMENTAL_REPLICATION_MULTITENANCY)
+endif ()
 
 if (TEST_COVERAGE)
   string(TOLOWER ${CMAKE_BUILD_TYPE} lower_build_type)
@@ -196,75 +300,92 @@ if (TEST_COVERAGE)
   set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fprofile-instr-generate -fcoverage-mapping")
 endif()
 
+if (MG_ENTERPRISE)
+  add_definitions(-DMG_ENTERPRISE)
+endif()
+
+option(ENABLE_JEMALLOC "Use jemalloc" ON)
+
+if (ASAN)
+  message(WARNING "Disabling jemalloc as it doesn't work well with ASAN")
+  set(ENABLE_JEMALLOC OFF)
+  # Enable Address sanitizer and get nicer stack traces in error messages.
+  # NOTE: AddressSanitizer uses llvm-symbolizer binary from the Clang
+  # distribution to symbolize the stack traces (note that ideally the
+  # llvm-symbolizer version must match the version of ASan runtime library).
+  # Just make sure llvm-symbolizer is in PATH before running the binary or
+  # provide it in separate ASAN_SYMBOLIZER_PATH environment variable.
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address -fno-omit-frame-pointer")
+  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=address")
+  # To detect Stack-use-after-return bugs set run-time flag:
+  #   ASAN_OPTIONS=detect_stack_use_after_return=1
+  # To check initialization order bugs set run-time flag:
+  #   ASAN_OPTIONS=check_initialization_order=true
+  #     This mode reports an error if initializer for a global variable accesses
+  #     dynamically initialized global from another translation unit, which is
+  #     not yet initialized
+  #   ASAN_OPTIONS=strict_init_order=true
+  #     This mode reports an error if initializer for a global variable accesses
+  #     any dynamically initialized global from another translation unit.
+endif()
+
+if (TSAN)
+  # ThreadSanitizer generally requires all code to be compiled with -fsanitize=thread.
+  # If some code (e.g. dynamic libraries) is not compiled with the flag, it can
+  # lead to false positive race reports, false negative race reports and/or
+  # missed stack frames in reports depending on the nature of non-instrumented
+  # code. To not produce false positive reports ThreadSanitizer has to see all
+  # synchronization in the program, some synchronization operations (namely,
+  # atomic operations and thread-safe static initialization) are intercepted
+  # during compilation (and can only be intercepted during compilation).
+  # ThreadSanitizer stack trace collection also relies on compiler instrumentation
+  # (unwinding stack on each memory access is too expensive).
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=thread")
+  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=thread")
+  # By default ThreadSanitizer uses addr2line utility to symbolize reports.
+  # llvm-symbolizer is faster, consumes less memory and produces much better
+  # reports. To use it set runtime flag:
+  #   TSAN_OPTIONS="extern-symbolizer-path=~/llvm-symbolizer"
+  # For more runtime flags see: https://github.com/google/sanitizers/wiki/ThreadSanitizerFlags
+endif()
+
+if (UBSAN)
+  # Compile with UBSAN but disable vptr check. This is disabled because it
+  # requires linking with clang++ to make sure C++ specific parts of the
+  # runtime library and c++ standard libraries are present.
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=undefined -fno-omit-frame-pointer -fno-sanitize=vptr")
+  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=undefined -fno-sanitize=vptr")
+  # Run program with environment variable UBSAN_OPTIONS=print_stacktrace=1.
+  # Make sure llvm-symbolizer binary is in path.
+  # To make the program abort on undefined behavior, use UBSAN_OPTIONS=halt_on_error=1.
+endif()
+
+set(MG_PYTHON_VERSION "" CACHE STRING "Specify the exact Python version used by the query modules")
+set(MG_PYTHON_PATH "" CACHE STRING "Specify the exact Python path used by the query modules")
+
 # Add subprojects
 include_directories(src)
 add_subdirectory(src)
 
-if(POC)
-  add_subdirectory(poc)
-endif()
+# Release configuration
+add_subdirectory(release)
 
-if(EXPERIMENTAL)
-  add_subdirectory(experimental)
-endif()
+option(MG_ENABLE_TESTING "Set this to OFF to disable building test binaries" ON)
+message(STATUS "MG_ENABLE_TESTING: ${MG_ENABLE_TESTING}")
 
-if(CUSTOMERS)
-  add_subdirectory(customers)
+if (MG_ENABLE_TESTING)
+  enable_testing()
+  add_subdirectory(tests)
 endif()
 
-enable_testing()
-add_subdirectory(tests)
-
 if(TOOLS)
   add_subdirectory(tools)
 endif()
 
-# -----------------------------------------------------------------------------
+if(QUERY_MODULES)
+  add_subdirectory(query_modules)
+endif()
 
-# ---- Setup CPack --------
-# General setup
-set(CPACK_PACKAGE_NAME memgraph)
-set(CPACK_PACKAGE_VENDOR "Memgraph Ltd.")
-set(CPACK_PACKAGE_DESCRIPTION_SUMMARY
-    "High performance, in-memory, transactional graph database")
-set(CPACK_PACKAGE_VERSION_MAJOR ${memgraph_VERSION_MAJOR})
-set(CPACK_PACKAGE_VERSION_MINOR ${memgraph_VERSION_MINOR})
-set(CPACK_PACKAGE_VERSION_PATCH ${memgraph_VERSION_PATCH})
-set(CPACK_PACKAGE_VERSION_TWEAK ${memgraph_VERSION_TWEAK})
-set(CPACK_PACKAGE_FILE_NAME ${CPACK_PACKAGE_NAME}-${memgraph_VERSION}-${COMMIT_HASH}${CPACK_SYSTEM_NAME})
-
-# DEB specific
-# Instead of using "name <email>" format, we use "email (name)" to prevent
-# errors due to full stop, '.' at the end of "Ltd". (See: RFC 822)
-set(CPACK_DEBIAN_PACKAGE_MAINTAINER "tech@memgraph.com (Memgraph Ltd.)")
-set(CPACK_DEBIAN_PACKAGE_SECTION non-free/database)
-set(CPACK_DEBIAN_PACKAGE_HOMEPAGE https://memgraph.com)
-set(CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA
-    "${CMAKE_SOURCE_DIR}/release/debian/conffiles;"
-    "${CMAKE_SOURCE_DIR}/release/debian/copyright;"
-    "${CMAKE_SOURCE_DIR}/release/debian/prerm;"
-    "${CMAKE_SOURCE_DIR}/release/debian/postrm;"
-    "${CMAKE_SOURCE_DIR}/release/debian/postinst;")
-set(CPACK_DEBIAN_PACKAGE_SHLIBDEPS ON)
-# Description formatting is important, summary must be followed with a newline and 1 space.
-set(CPACK_DEBIAN_PACKAGE_DESCRIPTION "${CPACK_PACKAGE_DESCRIPTION_SUMMARY}
- Contains Memgraph, the graph database. It aims to deliver developers the
- speed, simplicity and scale required to build the next generation of
- applications driver by real-time connected data.")
-
-# RPM specific
-set(CPACK_RPM_EXCLUDE_FROM_AUTO_FILELIST_ADDITION /var /var/lib /var/log /etc/logrotate.d /lib /lib/systemd /lib/systemd/system)
-set(CPACK_RPM_PACKAGE_REQUIRES_PRE "shadow-utils,systemd")
-# set(CPACK_RPM_USER_BINARY_SPECFILE "${CMAKE_SOURCE_DIR}/release/rpm/memgraph.spec.in")
-set(CPACK_RPM_PRE_INSTALL_SCRIPT_FILE "${CMAKE_CURRENT_SOURCE_DIR}/release/rpm/preinst")
-set(CPACK_RPM_POST_INSTALL_SCRIPT_FILE "${CMAKE_CURRENT_SOURCE_DIR}/release/rpm/postinst")
-set(CPACK_RPM_PRE_UNINSTALL_SCRIPT_FILE "${CMAKE_CURRENT_SOURCE_DIR}/release/rpm/prerm")
-# Description formatting is important, no line must be greater than 80 characters.
-set(CPACK_RPM_PACKAGE_DESCRIPTION "Contains Memgraph, the graph database.
-            : It aims to deliver developers the speed, simplicity and scale
-            : required to build the next generation of applications driver by
-            : real-time connected data.")
-
-# All variables must be set before including.
-include(CPack)
-# ---- End Setup CPack ----
+install(FILES ${CMAKE_BINARY_DIR}/bin/mgconsole
+  PERMISSIONS OWNER_EXECUTE OWNER_READ OWNER_WRITE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE
+  TYPE BIN)

CODE_OF_CONDUCT.md

@@ -0,0 +1,127 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+We as members, contributors, and leaders pledge to make participation in our
+community a harassment-free experience for everyone, regardless of age, body
+size, visible or invisible disability, ethnicity, sex characteristics, gender
+identity and expression, level of experience, education, socio-economic status,
+nationality, personal appearance, race, caste, color, religion, or sexual
+identity and orientation.
+
+We pledge to act and interact in ways that contribute to an open, welcoming,
+diverse, inclusive, and healthy community.
+
+## Our Standards
+
+Examples of behavior that contributes to a positive environment for our
+community include:
+
+- Demonstrating empathy and kindness toward other people
+- Being respectful of differing opinions, viewpoints, and experiences
+- Giving and gracefully accepting constructive feedback
+- Accepting responsibility and apologizing to those affected by our mistakes,
+  and learning from the experience
+- Focusing on what is best not just for us as individuals, but for the overall
+  community
+
+Examples of unacceptable behavior include:
+
+- The use of sexualized language or imagery, and sexual attention or advances of
+  any kind
+- Trolling, insulting or derogatory comments, and personal or political attacks
+- Public or private harassment
+- Publishing other's private information, such as a physical or email address,
+  without their explicit permission
+- Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Enforcement Responsibilities
+
+Community leaders are responsible for clarifying and enforcing our standards of
+acceptable behavior and will take appropriate and fair corrective action in
+response to any behavior that they deem inappropriate, threatening, offensive,
+or harmful.
+
+Community leaders have the right and responsibility to remove, edit, or reject
+comments, commits, code, wiki edits, issues, and other contributions that are
+not aligned to this Code of Conduct, and will communicate reasons for moderation
+decisions when appropriate.
+
+## Scope
+
+This Code of Conduct applies within all community spaces, and also applies when
+an individual is officially representing the community in public spaces.
+Examples of representing our community include using an official e-mail address,
+posting via an official social media account, or acting as an appointed
+representative at an online or offline event.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported to the community leaders responsible for enforcement at
+[contact@memgraph.com](contact@memgraph.com). All complaints will be reviewed
+and investigated promptly and fairly.
+
+All community leaders are obligated to respect the privacy and security of the
+reporter of any incident.
+
+## Enforcement Guidelines
+
+Community leaders will follow these Community Impact Guidelines in determining
+the consequences for any action they deem in violation of this Code of Conduct:
+
+### 1. Correction
+
+**Community Impact**: Use of inappropriate language or other behavior deemed
+unprofessional or unwelcome in the community.
+
+**Consequence**: A private, written warning from community leaders, providing
+clarity around the nature of the violation and an explanation of why the
+behavior was inappropriate. A public apology may be requested.
+
+### 2. Warning
+
+**Community Impact**: A violation through a single incident or series of
+actions.
+
+**Consequence**: A warning with consequences for continued behavior. No
+interaction with the people involved, including unsolicited interaction with
+those enforcing the Code of Conduct, for a specified period of time. This
+includes avoiding interactions in community spaces as well as external channels
+like social media. Violating these terms may lead to a temporary or permanent
+ban.
+
+### 3. Temporary Ban
+
+**Community Impact**: A serious violation of community standards, including
+sustained inappropriate behavior.
+
+**Consequence**: A temporary ban from any sort of interaction or public
+communication with the community for a specified period of time. No public or
+private interaction with the people involved, including unsolicited interaction
+with those enforcing the Code of Conduct, is allowed during this period.
+Violating these terms may lead to a permanent ban.
+
+### 4. Permanent Ban
+
+**Community Impact**: Demonstrating a pattern of violation of community
+standards, including sustained inappropriate behavior, harassment of an
+individual, or aggression toward or disparagement of classes of individuals.
+
+**Consequence**: A permanent ban from any sort of public interaction within the
+community.
+
+## Attribution
+
+This Code of Conduct is adapted from the Contributor Covenant, version 2.1,
+available at
+[https://www.contributor-covenant.org/version/2/1/code_of_conduct.html](https://www.contributor-covenant.org/version/2/1/code_of_conduct.html).
+
+Community Impact Guidelines were inspired by [Mozilla's code of conduct
+enforcement ladder][mozilla coc].
+
+For answers to common questions about this code of conduct, see the FAQ at
+[https://www.contributor-covenant.org/faq](https://www.contributor-covenant.org/faq).
+Translations are available at
+[https://www.contributor-covenant.org/translations](https://www.contributor-covenant.org/translations).

CONTRIBUTING.md

@@ -0,0 +1,121 @@
+# How to contribute?
+
+This is a general purpose guide for contributing to Memgraph. We're still
+working out the kinks to make contributing to this project as easy and
+transparent as possible, but we're not quite there yet. Hopefully, this document
+makes the process for contributing clear and answers some questions that you may
+have.
+
+- [How to contribute?](#how-to-contribute)
+  - [Open development](#open-development)
+  - [Branch organization](#branch-organization)
+  - [Bugs & changes](#bugs--changes)
+    - [Where to find known issues?](#where-to-find-known-issues)
+    - [Proposing a change](#proposing-a-change)
+    - [Your first pull request](#your-first-pull-request)
+    - [Sending a pull request](#sending-a-pull-request)
+    - [Style guide](#style-guide)
+  - [How to get in touch?](#how-to-get-in-touch)
+  - [Code of Conduct](#code-of-conduct)
+  - [License](#license)
+  - [Attribution](#attribution)
+
+## Open development
+
+All work on Memgraph is done via [GitHub](https://github.com/memgraph/memgraph).
+Both core team members and external contributors send pull requests which go
+through the same review process.
+
+## Branch organization
+
+Most pull requests should target the [`master
+branch`](https://github.com/memgraph/memgraph/tree/master). We only use separate
+branches for developing new features and fixing bugs before they are merged with
+`master`. We do our best to keep `master` in good shape, with all tests passing.
+
+Code that lands in `master` must be compatible with the latest stable release.
+It may contain additional features but no breaking changes if it's not
+absolutely necessary. We should be able to release a new minor version from the
+tip of `master` at any time.
+
+## Bugs & changes
+
+### Where to find known issues?
+
+We are using [GitHub Issues](https://github.com/memgraph/memgraph/issues) for
+our public bugs. We keep a close eye on this and try to make it clear when we
+have an internal fix in progress. Before filing a new task, try to make sure
+your problem doesn't already exist.
+
+### Proposing a change
+
+If you intend to change the public API, or make any non-trivial changes to the
+implementation, we recommend [filing an
+issue](https://github.com/memgraph/memgraph/issues/new). This lets us reach an
+agreement on your proposal before you put significant effort into it.
+
+If you're only fixing a bug, it's fine to submit a pull request right away but
+we still recommend to file an issue detailing what you're fixing. This is
+helpful in case we don't accept that specific fix but want to keep track of the
+issue.
+
+### Your first pull request
+
+Working on your first Pull Request? You can learn how from this free video
+series:
+
+**[How to Contribute to an Open Source Project on
+GitHub](https://app.egghead.io/courses/how-to-contribute-to-an-open-source-project-on-github)**
+
+If you decide to fix an issue, please be sure to check the comment thread in
+case somebody is already working on a fix. If nobody is working on it at the
+moment, please leave a comment stating that you intend to work on it so other
+people don't accidentally duplicate your effort.
+
+If somebody claims an issue but doesn't follow up for more than two weeks, it's
+fine to take it over but you should still leave a comment.
+
+### Sending a pull request
+
+The core team is monitoring for pull requests. We will review your pull request
+and either merge it, request changes to it, or close it with an explanation.
+**Before submitting a pull request,** please make sure the following is done:
+
+1. Fork [the repository](https://github.com/memgraph/memgraph) and create your
+   branch from `master`.
+2. If you've fixed a bug or added code that should be tested, add tests!
+3. Use the formatter `clang-format` for C/C++ code and `flake8` for Python code.
+   `clang-format` will automatically detect the `.clang-format` file in the root
+   directory while `flake8` can be used with the default configuration.
+
+### Style guide
+
+Memgraph uses the [Google Style
+Guide](https://google.github.io/styleguide/cppguide.html) for C++ in most of its
+code. You should follow them whenever writing new code.
+
+## How to get in touch?
+
+Aside from communicating directly via Pull Requests and Issues, the Memgraph
+Community [Discord Server](https://discord.gg/memgraph) is the best place for
+conversing with project maintainers and other community members.
+
+## [Code of Conduct](https://github.com/memgraph/memgraph/blob/master/CODE_OF_CONDUCT.md)
+
+Memgraph has adopted the [Contributor
+Covenant](https://www.contributor-covenant.org/) as its Code of Conduct, and we
+expect project participants to adhere to it. Please read [the full
+text](https://github.com/memgraph/memgraph/blob/master/CODE_OF_CONDUCT.md) so
+that you can understand what actions will and will not be tolerated.
+
+## License
+
+By contributing to Memgraph, you agree that your contributions will be licensed
+under the [Memgraph licensing
+scheme](https://github.com/memgraph/memgraph/blob/master/LICENSE).
+
+## Attribution
+
+This Contributing guide is adapted from the **React.js Contributing guide**
+available at
+[https://reactjs.org/docs/how-to-contribute.html](https://reactjs.org/docs/how-to-contribute.html).

Doxyfile

@@ -51,7 +51,7 @@ PROJECT_BRIEF          = "The World's Most Powerful Graph Database"
 # pixels and the maximum width should not exceed 200 pixels. Doxygen will copy
 # the logo to the output directory.
 
-PROJECT_LOGO           = Doxylogo.png
+PROJECT_LOGO           = docs/doxygen/memgraph_logo.png
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) path
 # into which the generated documentation will be written. If a relative path is
@@ -839,7 +839,6 @@ EXCLUDE_PATTERNS      += */Testing/*
 EXCLUDE_PATTERNS      += */tests/*
 EXCLUDE_PATTERNS      += */dist/*
 EXCLUDE_PATTERNS      += */tools/*
-EXCLUDE_PATTERNS      += */customers/*
 
 # The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
 # (namespaces, classes, functions, etc.) that should be excluded from the

LICENSE

@@ -0,0 +1,5 @@
+Source code in this repository is variously licensed under the Business Source
+License 1.1 (BSL), the Memgraph Enterprise License (MEL). A copy of each licence
+can be found in the licences directory. Source code in a given file is licensed
+under the BSL and the copyright belongs to The Memgraph Authors unless
+otherwise noted at th beginning of the file.

README.md

@@ -1,24 +1,177 @@
-# memgraph
+<p align="center">
+<img src="https://public-assets.memgraph.com/github-readme-images/github-memgraph-repo-banner.png">
+</p>
 
-Memgraph is an ACID compliant high performance transactional distributed
-in-memory graph database featuring runtime native query compiling, lock free
-data structures, multi-version concurrency control and asynchronous IO.
+---
 
-## dependencies
+<p align="center">
+  <a href="https://github.com/memgraph/memgraph/blob/master/licenses/APL.txt">
+    <img src="https://img.shields.io/badge/license-APL-green" alt="license" title="license"/>
+  </a>
+  <a href="https://github.com/memgraph/memgraph/blob/master/licenses/BSL.txt">
+    <img src="https://img.shields.io/badge/license-BSL-yellowgreen" alt="license" title="license"/>
+  </a>
+  <a href="https://github.com/memgraph/memgraph/blob/master/licenses/MEL.txt" alt="Documentation">
+    <img src="https://img.shields.io/badge/license-MEL-yellow" alt="license" title="license"/>
+  </a>
+</p>
 
-Memgraph can be compiled using any modern c++ compiler. It mostly relies on
-the standard template library, however, some things do require external
-libraries.
+<p align="center">
+  <a href="https://github.com/memgraph/memgraph">
+     <img src="https://img.shields.io/github/actions/workflow/status/memgraph/memgraph/release_debian10.yaml?branch=master&label=build%20and%20test&logo=github"/>
+  </a>
+  <a href="https://memgraph.com/docs/" alt="Documentation">
+    <img src="https://img.shields.io/badge/documentation-Memgraph-orange" />
+  </a>
+</p>
 
-Some code contains linux-specific libraries and the build is only supported
-on a 64 bit linux kernel.
+<p align="center">
+  <a href="https://memgr.ph/join-discord">
+    <img src="https://img.shields.io/badge/Discord-7289DA?style=for-the-badge&logo=discord&logoColor=white" alt="Discord"/>
+  </a>
+</p>
 
-* linux
-* clang 3.8 (good c++11 support, especially lock free atomics)
-* antlr (compiler frontend)
-* cppitertools
-* fmt format
-* google benchmark
-* google test
-* glog
-* gflags
+## :clipboard: Description
+
+Memgraph is an open source graph database built for real-time streaming and
+compatible with Neo4j. Whether you're a developer or a data scientist with
+interconnected data, Memgraph will get you the immediate actionable insights
+fast.
+
+Memgraph directly connects to your streaming infrastructure. You can ingest data
+from sources like Kafka, SQL, or plain CSV files. Memgraph provides a standard
+interface to query your data with Cypher, a widely-used and declarative query
+language that is easy to write, understand and optimize for performance. This is
+achieved by using the property graph data model, which stores data in terms of
+objects, their attributes, and the relationships that connect them. This is a
+natural and effective way to model many real-world problems without relying on
+complex SQL schemas.
+
+Memgraph is implemented in C/C++ and leverages an in-memory first architecture
+to ensure that you’re getting the [best possible
+performance](http://memgraph.com/benchgraph) consistently and without surprises.
+It’s also ACID-compliant and highly available.
+
+## :zap: Features
+
+- Run Python, Rust, and C/C++ code natively, check out the
+  [MAGE](https://github.com/memgraph/mage) graph algorithm library
+- Native support for machine learning
+- Streaming support
+- Replication
+- Authentication and authorization
+- ACID compliance
+
+
+## :video_game: Memgraph Playground
+
+You don't need to install anything to try out Memgraph. Check out 
+our **[Memgraph Playground](https://playground.memgraph.com/)** sandboxes in 
+your browser.
+
+<p align="left">
+  <a href="https://playground.memgraph.com/">
+    <img width="450px" alt="Memgraph Playground" src="https://download.memgraph.com/asset/github/memgraph/memgraph-playground.png">
+  </a>
+</p>
+
+## :floppy_disk: Download & Install
+
+### Windows
+
+[![Windows](https://img.shields.io/badge/Windows-Docker-0078D6?style=for-the-badge&logo=windows&logoColor=white)](https://memgraph.com/docs/memgraph/install-memgraph-on-windows-docker)
+[![Windows](https://img.shields.io/badge/Windows-WSL-0078D6?style=for-the-badge&logo=windows&logoColor=white)](https://memgraph.com/docs/memgraph/install-memgraph-on-windows-wsl)
+
+### macOS
+
+[![macOS](https://img.shields.io/badge/macOS-Docker-000000?style=for-the-badge&logo=macos&logoColor=F0F0F0)](https://memgraph.com/docs/memgraph/install-memgraph-on-macos-docker)
+[![macOS](https://img.shields.io/badge/lima-AACF41?style=for-the-badge&logo=macos&logoColor=F0F0F0)](https://memgraph.com/docs/memgraph/install-memgraph-on-ubuntu)
+
+### Linux
+
+[![Linux](https://img.shields.io/badge/Linux-Docker-FCC624?style=for-the-badge&logo=linux&logoColor=black)](https://memgraph.com/docs/memgraph/install-memgraph-on-linux-docker)
+[![Debian](https://img.shields.io/badge/Debian-D70A53?style=for-the-badge&logo=debian&logoColor=white)](https://memgraph.com/docs/memgraph/install-memgraph-on-debian)
+[![Ubuntu](https://img.shields.io/badge/Ubuntu-E95420?style=for-the-badge&logo=ubuntu&logoColor=white)](https://memgraph.com/docs/memgraph/install-memgraph-on-ubuntu)
+[![Cent OS](https://img.shields.io/badge/cent%20os-002260?style=for-the-badge&logo=centos&logoColor=F0F0F0)](https://memgraph.com/docs/memgraph/install-memgraph-from-rpm)
+[![Fedora](https://img.shields.io/badge/fedora-0B57A4?style=for-the-badge&logo=fedora&logoColor=F0F0F0)](https://memgraph.com/docs/memgraph/install-memgraph-from-rpm)
+[![RedHat](https://img.shields.io/badge/redhat-EE0000?style=for-the-badge&logo=redhat&logoColor=F0F0F0)](https://memgraph.com/docs/memgraph/install-memgraph-from-rpm)
+
+You can find the binaries and Docker images on the [Download
+Hub](https://memgraph.com/download) and the installation instructions in the
+[official documentation](https://memgraph.com/docs/memgraph/installation).
+
+
+## :cloud: Memgraph Cloud
+
+Check out [Memgraph Cloud](https://memgraph.com/docs/memgraph-cloud) - a cloud service fully managed on AWS and available in 6 geographic regions around the world. Memgraph Cloud allows you to create projects with Enterprise instances of MemgraphDB from your browser.
+
+<p align="left">
+  <a href="https://memgraph.com/docs/memgraph-cloud">
+    <img width="450px" alt="Memgraph Cloud" src="https://public-assets.memgraph.com/memgraph-gifs%2Fcloud.gif">
+  </a>
+</p>
+
+## :link: Connect to Memgraph
+
+[Connect to the database](https://memgraph.com/docs/memgraph/connect-to-memgraph) using Memgraph Lab, mgconsole, various drivers (Python, C/C++ and others) and WebSocket. 
+
+### :microscope: Memgraph Lab
+
+Visualize graphs and play with queries to understand your data. [Memgraph Lab](https://memgraph.com/docs/memgraph-lab) is a user interface that helps you explore and manipulate the data stored in Memgraph. Visualize graphs, execute ad hoc queries, and optimize their performance.
+
+<p align="left">
+  <a href="https://memgraph.com/docs/memgraph-lab">
+    <img width="450px" alt="Memgraph Cloud" src="https://public-assets.memgraph.com/memgraph-gifs%2Flab.gif">
+  </a>
+</p>
+
+## :file_folder: Import data
+
+[Import data](https://memgraph.com/docs/memgraph/import-data) into Memgraph using Kafka, RedPanda or Pulsar streams, CSV and JSON files, or Cypher commands.
+
+## :bookmark_tabs: Documentation
+
+The Memgraph documentation is available at
+[memgraph.com/docs](https://memgraph.com/docs).
+
+## :question: Configuration
+
+Command line options that Memgraph accepts are available in the [reference
+guide](https://memgraph.com/docs/memgraph/reference-guide/configuration).
+
+## :trophy: Contributing
+
+Welcome to the heart of Memgraph development! We're on a mission to supercharge Memgraph, making it faster, more user-friendly, and even more powerful. We owe a big thanks to our fantastic community of contributors who help us fix bugs and bring incredible improvements to life. If you're passionate about databases and open source, here's your chance to make a difference!
+
+### Explore Memgraph Internals
+
+Interested in the nuts and bolts of Memgraph? Our [internals documentation](https://memgraph.notion.site/Memgraph-Internals-12b69132d67a417898972927d6870bd2) is where you can uncover the inner workings of Memgraph's architecture, learn how to build the project from scratch, and discover the secrets of effective contributions. Dive deep into the database!
+
+### Dive into the Contributing Guide
+Ready to jump into the action? Explore our [contributing guide](CONTRIBUTING.md) to get the inside scoop on how we develop Memgraph. It's your roadmap for suggesting bug fixes and enhancements. Contribute your skills and ideas!
+
+### Code of Conduct
+
+Our commitment to a respectful and professional community is unwavering. Every participant in Memgraph is expected to adhere to a stringent Code of Conduct. Please carefully review [the complete text](CODE_OF_CONDUCT.md) to gain a comprehensive understanding of the behaviors that are both expected and explicitly prohibited.
+
+We maintain a zero-tolerance policy towards any violations. Our shared commitment to this Code of Conduct ensures that Memgraph remains a place where integrity and excellence are paramount.
+
+### :scroll: License
+
+Memgraph Community is available under the [BSL
+license](./licenses/BSL.txt).</br> Memgraph Enterprise is available under the
+[MEL license](./licenses/MEL.txt).
+
+## :busts_in_silhouette: Community
+
+- :purple_heart: [**Discord**](https://discord.gg/memgraph)
+- :ocean: [**Stack Overflow**](https://stackoverflow.com/questions/tagged/memgraphdb)
+- :bird: [**Twitter**](https://twitter.com/memgraphdb)
+- :movie_camera:
+  [**YouTube**](https://www.youtube.com/channel/UCZ3HOJvHGxtQ_JHxOselBYg)
+
+<p align="center">
+  <a href="#">
+    <img src="https://img.shields.io/badge/⬆️ back_to_top_⬆️-white" alt="Back to top" title="Back to top"/>
+  </a>
+</p>

apollo_archives.py

@@ -1,39 +0,0 @@
-#!/usr/bin/env python3
-import json
-import os
-import re
-import subprocess
-import sys
-
-# paths
-SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
-BUILD_OUTPUT_DIR = os.path.normpath(os.path.join(SCRIPT_DIR, "build_release", "output"))
-
-# helpers
-def run_cmd(cmd, cwd):
-    return subprocess.run(cmd, cwd=cwd, check=True,
-        stdout=subprocess.PIPE).stdout.decode("utf-8")
-
-# check project
-if re.search(r"release", os.environ.get("PROJECT", "")) is None:
-    print(json.dumps([]))
-    sys.exit(0)
-
-# generate archive
-deb_name = run_cmd(["find", ".", "-maxdepth", "1", "-type", "f",
-        "-name", "memgraph*.deb"], BUILD_OUTPUT_DIR).split("\n")[0][2:]
-arch = run_cmd(["dpkg", "--print-architecture"], BUILD_OUTPUT_DIR).split("\n")[0]
-version = deb_name.split("-")[1]
-# generate Debian package file name as expected by Debian Policy
-standard_deb_name = "memgraph_{}-1_{}.deb".format(version, arch)
-
-archive_path = os.path.relpath(os.path.join(BUILD_OUTPUT_DIR,
-        deb_name), SCRIPT_DIR)
-
-archives = [{
-    "name": "Release (deb package)",
-    "archive": archive_path,
-    "filename": standard_deb_name,
-}]
-
-print(json.dumps(archives, indent=4, sort_keys=True))

apollo_archives.yaml

@@ -1,20 +0,0 @@
-- name: Binaries
-  archive:
-    - build_debug/memgraph
-    - build_release/memgraph
-    - build_release/tools/src/mg_import_csv
-    - build_release/tools/src/mg_statsd
-    - config
-  filename: binaries.tar.gz
-
-- name: Doxygen documentation
-  cd: docs/doxygen/html
-  archive:
-    - .
-  filename: documentation.tar.gz
-  host: true
-
-- name: Release (user docs)
-  project: ^NEVER$ # TODO (mferencevic): replace with 'release' once user documentation creation is fixed (couscous -> pandoc)
-  archive: docs/user_technical/docs.tar.gz
-  filename: release_user_docs.tar.gz

apollo_build.yaml

@@ -1,94 +0,0 @@
-- name: Diff build
-  project: ^mg-master-diff$
-  commands: |
-    # Copy untouched repository to parent folder.
-    cd ..
-    cp -r memgraph parent
-    cd memgraph
-
-    # Initialize and create documentation.
-    TIMEOUT=600 ./init
-    doxygen Doxyfile
-
-    # Remove default build directory.
-    rm -r build
-
-    # Build debug binaries.
-    mkdir build_debug
-    cd build_debug
-    cmake ..
-    TIMEOUT=1000 make -j$THREADS
-
-    # Build coverage binaries.
-    cd ..
-    mkdir build_coverage
-    cd build_coverage
-    cmake -DTEST_COVERAGE=ON ..
-    TIMEOUT=1000 make -j$THREADS memgraph__unit
-
-    # Build release binaries.
-    cd ..
-    mkdir build_release
-    cd build_release
-    cmake -DCMAKE_BUILD_TYPE=release ..
-    TIMEOUT=1000 make -j$THREADS memgraph tools memgraph__macro_benchmark memgraph__stress memgraph__manual__card_fraud_generate_snapshot
-
-    # Generate distributed card fraud dataset.
-    cd ../tests/distributed/card_fraud
-    ./generate_dataset.sh
-    cd ../../..
-
-    # Checkout to parent commit and initialize.
-    cd ../parent
-    git checkout HEAD~1
-    TIMEOUT=600 ./init
-
-    # Build parent release binaries.
-    mkdir build_release
-    cd build_release
-    cmake -DCMAKE_BUILD_TYPE=release ..
-    TIMEOUT=1000 make -j$THREADS memgraph memgraph__macro_benchmark
-
-
-# release build is the default one
-- name: Release build
-  commands: |
-    TIMEOUT=600 ./init
-    doxygen Doxyfile
-
-    # Remove default build directory.
-    rm -r build
-
-    # Build debug binaries.
-    mkdir build_debug
-    cd build_debug
-    cmake ..
-    TIMEOUT=1000 make -j$THREADS
-
-    # Build coverage binaries.
-    cd ..
-    mkdir build_coverage
-    cd build_coverage
-    cmake -DTEST_COVERAGE=ON ..
-    TIMEOUT=1000 make -j$THREADS memgraph__unit
-
-    # Build release binaries.
-    cd ..
-    mkdir build_release
-    cd build_release
-    cmake -DCMAKE_BUILD_TYPE=Release -DUSE_READLINE=OFF ..
-    TIMEOUT=1000 make -j$THREADS
-
-    # Create Debian package.
-    mkdir output
-    cd output
-    cpack -G DEB --config ../CPackConfig.cmake
-
-    # Create user technical documentation for community site.
-    cd ../../docs/user_technical
-    # TODO (mferencevic): uncomment this once couscous is replaced with pandoc
-    #./bundle_community
-
-    # Generate distributed card fraud dataset.
-    cd ../../tests/distributed/card_fraud
-    ./generate_dataset.sh

cmake/FindSeccomp.cmake

@@ -0,0 +1,90 @@
+#.rst:
+# FindSeccomp
+# -----------
+#
+# Try to locate the libseccomp library.
+# If found, this will define the following variables:
+#
+# ``Seccomp_FOUND``
+#     True if the seccomp library is available
+# ``Seccomp_INCLUDE_DIRS``
+#     The seccomp include directories
+# ``Seccomp_LIBRARIES``
+#     The seccomp libraries for linking
+#
+# If ``Seccomp_FOUND`` is TRUE, it will also define the following
+# imported target:
+#
+# ``Seccomp::Seccomp``
+#     The Seccomp library
+#
+# Since 5.44.0.
+
+#=============================================================================
+# Copyright (c) 2017 Martin Flöser <mgraesslin@kde.org>
+# Copyright (c) 2017 David Kahles <david.kahles96@gmail.com>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. The name of the author may not be used to endorse or promote products
+#    derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#=============================================================================
+
+find_package(PkgConfig QUIET)
+pkg_check_modules(PKG_Libseccomp QUIET libseccomp)
+
+find_path(Seccomp_INCLUDE_DIRS
+    NAMES
+        seccomp.h
+    HINTS
+        ${PKG_Libseccomp_INCLUDE_DIRS}
+)
+find_library(Seccomp_LIBRARIES
+    NAMES
+        seccomp
+    HINTS
+        ${PKG_Libseccomp_LIBRARY_DIRS}
+)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Seccomp
+    FOUND_VAR
+        Seccomp_FOUND
+    REQUIRED_VARS
+        Seccomp_LIBRARIES
+        Seccomp_INCLUDE_DIRS
+)
+
+if (Seccomp_FOUND AND NOT TARGET Seccomp::Seccomp)
+    add_library(Seccomp::Seccomp UNKNOWN IMPORTED)
+    set_target_properties(Seccomp::Seccomp PROPERTIES
+        IMPORTED_LOCATION "${Seccomp_LIBRARIES}"
+        INTERFACE_INCLUDE_DIRECTORIES "${Seccomp_INCLUDE_DIRS}"
+    )
+endif()
+
+mark_as_advanced(Seccomp_LIBRARIES Seccomp_INCLUDE_DIRS)
+
+include(FeatureSummary)
+set_package_properties(Seccomp PROPERTIES
+    URL "https://github.com/seccomp/libseccomp"
+    DESCRIPTION "The enhanced seccomp library."
+)

cmake/Findjemalloc.cmake

@@ -0,0 +1,67 @@
+# Try to find jemalloc library
+#
+# Use this module as:
+#   find_package(jemalloc)
+#
+# or:
+#   find_package(jemalloc REQUIRED)
+#
+# This will define the following variables:
+#
+#   JEMALLOC_FOUND           True if the system has the jemalloc library.
+#   Jemalloc_INCLUDE_DIRS    Include directories needed to use jemalloc.
+#   Jemalloc_LIBRARIES       Libraries needed to link to jemalloc.
+#
+# The following cache variables may also be set:
+#
+# Jemalloc_INCLUDE_DIR     The directory containing jemalloc/jemalloc.h.
+# Jemalloc_LIBRARY         The path to the jemalloc static library.
+
+
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(jemalloc
+  FOUND_VAR JEMALLOC_FOUND
+  REQUIRED_VARS
+    JEMALLOC_LIBRARY
+    JEMALLOC_INCLUDE_DIR
+)
+
+if(JEMALLOC_INCLUDE_DIR)
+  message(STATUS "Found jemalloc include dir: ${JEMALLOC_INCLUDE_DIR}")
+else()
+  message(WARNING "jemalloc not found!")
+endif()
+
+if(JEMALLOC_LIBRARY)
+  message(STATUS "Found jemalloc library: ${JEMALLOC_LIBRARY}")
+else()
+  message(WARNING "jemalloc library not found!")
+endif()
+
+if(JEMALLOC_FOUND)
+  set(Jemalloc_LIBRARIES ${JEMALLOC_LIBRARY})
+  set(Jemalloc_INCLUDE_DIRS ${JEMALLOC_INCLUDE_DIR})
+else()
+  if(Jemalloc_FIND_REQUIRED)
+    message(FATAL_ERROR "Cannot find jemalloc!")
+  else()
+    message(WARNING "jemalloc is not found!")
+  endif()
+endif()
+
+if(JEMALLOC_FOUND AND NOT TARGET Jemalloc::Jemalloc)
+  message(STATUS "JEMALLOC NOT TARGET")
+
+  add_library(Jemalloc::Jemalloc UNKNOWN IMPORTED)
+  set_target_properties(Jemalloc::Jemalloc
+    PROPERTIES
+      IMPORTED_LOCATION "${JEMALLOC_LIBRARY}"
+      INTERFACE_INCLUDE_DIRECTORIES "${JEMALLOC_INCLUDE_DIR}"
+  )
+endif()
+
+mark_as_advanced(
+  JEMALLOC_INCLUDE_DIR
+  JEMALLOC_LIBRARY
+)

config/benchmarking.conf

@@ -1,19 +0,0 @@
-# MEMGRAPH DEFAULT BENCHMARKING CONFIG
-
-# NOTE: all paths are relative to the run folder
-# (where the executable is run)
-
-# no durability
---durability-enabled=false
---snapshot-on-exit=false
---db-recover-on-startup=false
-
-# no GC
---gc-cycle-sec=-1
---skiplist_gc_interval=-1
-
-# no query execution time limit
---query_execution_time_sec=-1
-
-# number of workers
---num-workers=1

config/community.conf

@@ -1,93 +0,0 @@
-# Default Memgraph Configuration
-#
-# This is the default configuration for memgraph. Settings from this file will
-# be overridden by a configuration file in '$HOME/.memgraph/config', so you can
-# keep this file intact. Additional configuration can be specified in a file
-# pointed to by 'MEMGRAPH_CONFIG' environment variable or by passing arguments
-# on the command line.
-#
-# Each configuration setting is of the form: '--setting-name=value'.
-
-## Database
-
-# IP address the server should listen on.
---interface=0.0.0.0
-
-# Port the server should listen on.
---port=7687
-
-# Number of workers used by the Memgraph server. By default, this will be the
-# number of processing units available on the machine.
-# --num-workers=8
-
-# Interval, in seconds, when the garbage collection (GC) should run. GC is used
-# for releasing memory that is no longer needed. For example, deleted graph
-# elements which cannot be seen by any running or new transactions. If set to
-# -1 the GC will never run (use with caution, memory will never get released).
---gc-cycle-sec=30
-
-# If Memgraph detects there is less available RAM than the given number in MB,
-# it will log a warning.
---memory-warning-threshold=1024
-
-## Query
-#
-# Various settings related to openCypher query execution.
-
-# Maximum allowed query execution time, in seconds. Any queries exceeding this
-# limit will be aborted. Setting to -1 removes the limit.
---query-execution-time-sec=30
-
-# Cache generated query execution plans. This speeds up planning repeated
-# queries which produce multiple complex execution plans. The downside is that
-# some executions may use inferior plans if the database state changed. To
-# disable caching, set to false.
-#--query-plan-cache=false
-
-# Time to live for cached query plans, in seconds. This tries to minimize the
-# downside of caching by evicting old plans after the given time.
-#--query-plan-cache-ttl=60
-
-## Durability
-#
-# Memgraph can store database state to persistent storage. Two mechanisms
-# are used: snapshots store the total current database state while write-ahead
-# logs store small changes incrementally. They are used in tandem to provide
-# fast and storage-efficient persistence. Some aspects of snapshot taking
-# are configurable, while write-ahead logging is pre-configured for optimal
-# performance.
---durability-enabled=true
-
-# Path to the directory where snapshots and write-ahead log files will be stored.
---durability-directory=/var/lib/memgraph/durability
-
-# Recover the database on startup.
---db-recover-on-startup=true
-
-# Interval of taking snapshots, in seconds. If set to -1, the snapshot feature
-# will be turned off.
---snapshot-cycle-sec=300
-
-# Create a snapshot when closing Memgraph.
---snapshot-on-exit=true
-
-# Maximum number of kept snapshots. Old snapshots will be deleted to make room
-# for new ones. If set to -1, the number of kept snapshots is unlimited.
---snapshot-max-retained=3
-
-## Logging
-
-# Path to where the log should be stored.
---log-file=/var/log/memgraph/memgraph.log
-
-# If true, log messages will go to stderr in addition to logfiles.
-#--also-log-to-stderr=true
-
-## Additional Configuration Inclusion
-
-# Include additional configuration from this file. Settings with the same name
-# will override previously read values. Note, that reading the configuration,
-# which called '--flag-file' will continue after inclusion. Therefore, settings
-# after '--flag-file' may override the included ones.
-#--flag-file=another.conf
-

config/flags.yaml

@@ -0,0 +1,133 @@
+header: >-
+  Memgraph Configuration
+
+  This is the main configuration file for Memgraph. You can modify this file to
+  suit your specific needs. Additional configuration can be specified by
+  including another configuration file, in a file pointed to by the
+  'MEMGRAPH_CONFIG' environment variable or by passing arguments on the command
+  line.
+
+  Each configuration setting is in the form: '--setting-name=value'.
+
+footer: >-
+  Additional Configuration Inclusion
+
+  You can include additional configuration files from this file. Additional
+  files are processed after this file. Settings that are set in the additional
+  files will override previously set values. Additional configuration files are
+  specified with the '--flag-file' flag.
+
+  Example:
+
+  --flag-file=another.conf
+
+modifications:
+
+  # Each modification should consist of the following parameters:
+  #   * name: the name of the flag that should be modified (with underscores)
+  #           [string]
+  #   * value: the value that should be set instead of the binary provided
+  #            default value [string]
+  #   * override: set to `true` to uncomment the config option by default
+  #               [boolean]
+
+  - name: "data_directory"
+    value: "/var/lib/memgraph"
+    override: true
+
+  - name: "log_file"
+    value: "/var/log/memgraph/memgraph.log"
+    override: true
+
+  - name: "log_level"
+    value: "WARNING"
+    override: true
+
+  - name: "bolt_num_workers"
+    value: ""
+    override: false
+
+  - name: "bolt_cert_file"
+    value: "/etc/memgraph/ssl/cert.pem"
+    override: false
+
+  - name: "bolt_key_file"
+    value: "/etc/memgraph/ssl/key.pem"
+    override: false
+
+  - name: "storage_properties_on_edges"
+    value: "true"
+    override: true
+
+  - name: "storage_recover_on_startup"
+    value: "true"
+    override: true
+
+  - name: "storage_snapshot_interval_sec"
+    value: "300"
+    override: true
+
+  - name: "storage_snapshot_on_exit"
+    value: "true"
+    override: true
+
+  - name: "storage_snapshot_retention_count"
+    value: "3"
+    override: true
+
+  - name: "storage_wal_enabled"
+    value: "true"
+    override: true
+
+  - name: "telemetry_enabled"
+    value: "true"
+    override: true
+
+  - name: "query_modules_directory"
+    value: "/usr/lib/memgraph/query_modules"
+    override: true
+
+  - name: "auth_module_executable"
+    value: "/usr/lib/memgraph/auth_module/example.py"
+    override: false
+
+  - name: "memory_limit"
+    value: "0"
+    override: true
+
+  - name: "isolation_level"
+    value: "SNAPSHOT_ISOLATION"
+    override: true
+
+  - name: "storage_mode"
+    value: "IN_MEMORY_TRANSACTIONAL"
+    override: true
+
+  - name: "allow_load_csv"
+    value: "true"
+    override: false
+
+  - name: "storage_parallel_index_recovery"
+    value: "false"
+    override: true
+
+  - name: "storage_parallel_schema_recovery"
+    value: "false"
+    override: true
+
+  - name: "storage_enable_schema_metadata"
+    value: "false"
+    override: true
+
+  - name: "query_callable_mappings_path"
+    value: "/etc/memgraph/apoc_compatibility_mappings.json"
+    override: true
+
+undocumented:
+  - "flag_file"
+  - "also_log_to_stderr"
+  - "help"
+  - "help_xml"
+  - "version"
+  - "organization_name"
+  - "license_key"

config/generate.py

@@ -0,0 +1,124 @@
+#!/usr/bin/env python3
+import argparse
+import copy
+import os
+import subprocess
+import sys
+import textwrap
+import xml.etree.ElementTree as ET
+
+import yaml
+
+SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
+CONFIG_FILE = os.path.join(SCRIPT_DIR, "flags.yaml")
+WIDTH = 80
+
+
+def wrap_text(s, initial_indent="# "):
+    return "\n#\n".join(
+        map(lambda x: textwrap.fill(x, WIDTH, initial_indent=initial_indent, subsequent_indent="# "), s.split("\n"))
+    )
+
+
+def extract_flags(binary_path):
+    ret = {}
+    data = subprocess.run([binary_path, "--help-xml"], stdout=subprocess.PIPE).stdout.decode("utf-8")
+    # If something is printed out before the help output, it will break the the
+    # XML parsing -> filter out if something is not XML line because something
+    # can be logged before gflags output (e.g. during the global objects init).
+    # This gets called during memgraph build phase to generate default config
+    # file later installed under /etc/memgraph/memgraph.conf
+    # NOTE: Don't use \n in the gflags description strings.
+    # NOTE: Check here if gflags version changes because of the XML format.
+    data = "\n".join([line for line in data.split("\n") if line.startswith("<")])
+    root = ET.fromstring(data)
+    for child in root:
+        if child.tag == "usage" and child.text.lower().count("warning"):
+            raise Exception("You should set the usage message!")
+        if child.tag == "flag":
+            flag = {}
+            for elem in child:
+                flag[elem.tag] = elem.text if elem.text is not None else ""
+            flag["override"] = False
+            ret[flag["name"]] = flag
+    return ret
+
+
+def apply_config_to_flags(config, flags):
+    flags = copy.deepcopy(flags)
+    for name in config["undocumented"]:
+        flags.pop(name)
+    for modification in config["modifications"]:
+        name = modification["name"]
+        if name not in flags:
+            print("WARNING: Flag '" + name + "' missing from binary!", file=sys.stderr)
+            continue
+        flags[name]["default"] = modification["value"]
+        flags[name]["override"] = modification["override"]
+    return flags
+
+
+def extract_sections(flags):
+    sections = []
+    other = []
+    current_section = ""
+    current_flags = []
+    for name in sorted(flags.keys()):
+        section = name.split("_")[0]
+        if section == current_section:
+            current_flags.append(name)
+        else:
+            if len(current_flags) < 2:
+                other.extend(current_flags)
+            else:
+                sections.append((current_section, current_flags))
+            current_section = section
+            current_flags = [name]
+    if len(current_flags) < 2:
+        other.extend(current_flags)
+    else:
+        sections.append((current_section, current_flags))
+    sections.append(("other", other))
+    assert set(sum(map(lambda x: x[1], sections), [])) == set(
+        flags.keys()
+    ), "The section extraction algorithm lost some flags!"
+    return sections
+
+
+def generate_config_file(sections, flags):
+    ret = wrap_text(config["header"]) + "\n\n\n"
+    for section, section_flags in sections:
+        ret += wrap_text(section.capitalize(), initial_indent="## ") + "\n\n"
+        for name in section_flags:
+            flag = flags[name]
+            helpstr = flag["meaning"] + " [" + flag["type"] + "]"
+            ret += wrap_text(helpstr) + "\n"
+            prefix = "# " if not flag["override"] else ""
+            ret += prefix + "--" + flag["name"].replace("_", "-") + "=" + flag["default"] + "\n\n"
+        ret += "\n"
+    ret += wrap_text(config["footer"])
+    return ret.strip() + "\n"
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser()
+    parser.add_argument("memgraph_binary", help="path to Memgraph binary")
+    parser.add_argument("output_file", help="path where to store the generated Memgraph " "configuration file")
+    parser.add_argument("--config-file", default=CONFIG_FILE, help="path to generator configuration file")
+
+    args = parser.parse_args()
+    flags = extract_flags(args.memgraph_binary)
+
+    with open(args.config_file) as f:
+        config = yaml.safe_load(f)
+
+    flags = apply_config_to_flags(config, flags)
+    sections = extract_sections(flags)
+    data = generate_config_file(sections, flags)
+
+    dirname = os.path.dirname(args.output_file)
+    if dirname and not os.path.exists(dirname):
+        os.makedirs(dirname)
+
+    with open(args.output_file, "w") as f:
+        f.write(data)

config/mappings.json

@@ -0,0 +1,26 @@
+{
+    "dbms.components": "mgps.components",
+    "apoc.util.validate": "mgps.validate",
+    "db.schema.nodeTypeProperties": "schema.NodeTypeOroperties",
+    "db.schema.relTypeProperties": "schema.RelTypeProperties",
+    "apoc.coll.contains": "collections.contains",
+    "apoc.coll.partition": "collections.partition",
+    "apoc.coll.toSet": "collections.to_set",
+    "apoc.coll.unionAll": "collections.unionAll",
+    "apoc.coll.removeAll": "collections.remove_all",
+    "apoc.coll.union": "collections.union",
+    "apoc.coll.sum": "collections.sum",
+    "apoc.coll.pairs": "collections.pairs",
+    "apoc.map.fromLists": "map.from_lists",
+    "apoc.map.removeKeys": "map.remove_keys",
+    "apoc.map.merge": "map.merge",
+    "apoc.create.nodes": "create.nodes",
+    "apoc.create.removeProperties": "create.remove_properties",
+    "apoc.create.node": "create.node",
+    "apoc.create.removeLabel": "create.remove_label",
+    "apoc.refactor.invert": "refactor.invert",
+    "apoc.refactor.cloneNode": "refactor.clone_node",
+    "apoc.refactor.cloneSubgraph": "refactor.clone_subgraph",
+    "apoc.refactor.cloneSubgraphFromPath": "refactor.clone_subgraph_from_path",
+    "apoc.label.exists": "label.exists"
+}

config/stress.conf

@@ -1,15 +0,0 @@
-# MEMGRAPH DEFAULT STRESS TESTING CONFIG
-
-# NOTE: all paths are relative to the run folder
-# (where the executable is run)
-
-# enable durability
---durability-enabled=true
---snapshot-cycle-sec=600
---snapshot-on-exit=true
---snapshot-max-retained=1
-
---db-recover-on-startup=false
-
-# increase query timeout (10 min)
---query-execution-time-sec=600

config/testing.conf

@@ -1,9 +0,0 @@
-# MEMGRAPH DEFAULT TESTING CONFIG
-
-# NOTE: all paths are relative to the run folder
-# (where the executable is run)
-
-# no durability
---durability-enabled=false
---snapshot-on-exit=false
---db-recover-on-startup=false

customers/CMakeLists.txt

@@ -1,2 +0,0 @@
-project(mg_customers)
-add_subdirectory(otto)

customers/elliott/README_internal.md

@@ -1,70 +0,0 @@
-DISCLAIMER: this is just an initial test, graph might not resemble
-the graph in the use case at all and the data might be completely
-irrelevant.
-
-We tried generating a few sample graphs from the vague description
-given in the use case doc. Then we tried writing queries that would
-solve the problem of updating nodes when a leaf value changes,
-assuming all the internal nodes compute only the sum function.
-
-We start by creating an index on `id` property to improve initial lookup
-performance:
-
-    CREATE INDEX ON :Leaf(id)
-
-Set values of all leafs to 1:
-
-    MATCH (u:Leaf) SET u.value = 1
-
-Now we initialize the values of all other nodes in the graph:
-
-    MATCH (u) WHERE NOT u:Leaf SET u.value = 0
-
-    MATCH (u) WITH u
-    ORDER BY u.topological_index DESC
-    MATCH (u)-->(v) SET u.value = u.value + v.value
-
-Change the value of a leaf:
-
-    MATCH (u:Leaf {id: "18"}) SET u.value = 10
-
-We have to reset all the updated nodes to a neutral element:
-
-    MATCH (u:Leaf {id: "18"})<-[* bfs]-(v)
-    WHERE NOT v:Leaf SET v.value = 0
-
-Finally, we recalculate their values in topological order:
-
-    MATCH (u:Leaf {id: "18"})<-[* bfs]-(v)
-    WITH v ORDER BY v.topological_index DESC
-    MATCH (v)-->(w) SET v.value = v.value + w.value
-
-There are a few assumptions made worth pointing out.
-
-* We are able to efficiently maintain topological order
-  of vertices in the graph.
-
-* It is possible to accumulate the value of the function.  Formally: 
-  $$f(x_1, x_2, ..., x_n) = g(...(g(g(x_1, x_2), x_3), ...), x_n)$$
-
-* There is a neutral element for the operation. However, this
-  assumption can be dropped by introducing an artificial neutral element.
-
-Number of operations required is proportional to the sum of degrees of affected
-nodes.
-
-We generated graph with $10^5$ nodes ($20\ 000$ nodes in each layer),  varied the
-degree distribution in node layers and measured time for the query to execute:
-
-| # |  Root-Category-Group degree | Group-CustomGroup-Leaf degree |   Time    |
-|:-:|:---------------------------:|:-----------------------------:|:---------:|
-| 1 |            [1, 10]          |           [20, 40]            |   ~1.1s   |
-| 2 |            [1, 10]          |          [50, 100]            |   ~2.5s   |
-| 3 |           [10, 50]          |          [50, 100]            |   ~3.3s   |
-
-Due to the structure of the graph, update of a leaf required update of almost
-all the nodes in the graph so we don't show times required for initial graph
-update and update after leaf change separately.
-
-However, there is not enough info on the use case to make the test more
-sophisticated.

customers/elliott/README_public.md

@@ -1,71 +0,0 @@
----
-title: "Elliott Management"
-subtitle: "Proof of Concept Report"
-header-title: "Elliott Management POC"
-date: 2017-10-28
-copyright: "©2017 Memgraph Ltd. All rights reserved."
-titlepage: true
-titlepage-color: FFFFFF
-titlepage-text-color: 101010
-titlepage-rule-color: 101010
-titlepage-rule-height: 1
-...
-
-# Introduction
-
-We tried generating a few sample graphs from the description given at
-the in-person meetings.  Then, we tried writing queries that would solve
-the problem of updating nodes when a leaf value changes, assuming all the
-internal nodes compute only the sum function.
-
-# Technical details
-
-We started by creating an index on `id` property to improve initial lookup
-performance:
-
-    CREATE INDEX ON :Leaf(id)
-
-Afther that, we set values of all leafs to 1:
-
-    MATCH (u:Leaf) SET u.value = 1
-
-We then initialized the values of all other nodes in the graph:
-
-    MATCH (u) WHERE NOT u:Leaf SET u.value = 0
-
-    MATCH (u) WITH u
-    ORDER BY u.topological_index DESC
-    MATCH (u)-->(v) SET u.value = u.value + v.value
-
-Leaf value change and update of affected values in the graph can
-be done using three queries. To change the value of a leaf:
-
-    MATCH (u:Leaf {id: "18"}) SET u.value = 10
-
-Then we had to reset all the affected nodes to the neutral element:
-
-    MATCH (u:Leaf {id: "18"})<-[* bfs]-(v)
-    WHERE NOT v:Leaf SET v.value = 0
-
-Finally, we recalculated their values in topological order:
-
-    MATCH (u:Leaf {id: "18"})<-[* bfs]-(v)
-    WITH v ORDER BY v.topological_index DESC
-    MATCH (v)-->(w) SET v.value = v.value + w.value
-
-There are a few assumptions necessary for the approach above to work.
-
-* We are able to maintain topological order of vertices during graph
-  structure changes.  
-
-* It is possible to accumulate the value of the function.  Formally: 
-  $$f(x_1, x_2, ..., x_n) = g(...(g(g(x_1, x_2), x_3), ...), x_n)$$
-
-* There is a neutral element for the operation. However, this
-  assumption can be dropped by introducing an artificial neutral element.
-
-Above assumptions could be changed, relaxed or dropped, depending on the
-specifics of the use case.
-
-Number of operations required is proportional to the sum of degrees of affected
-nodes. 

customers/elliott/commands.txt

@@ -1,12 +0,0 @@
-CREATE INDEX ON :Leaf(id);
-MATCH (u:Leaf) SET u.value = 1;
-MATCH (u) WHERE NOT u:Leaf SET u.value = 0;
-MATCH (u) WITH u 
-ORDER BY u.topological_index DESC
-MATCH (u)-->(v) SET u.value = u.value + v.value;
-MATCH (u:Leaf {id: "85000"}) SET u.value = 10;
-MATCH (u:Leaf {id: "85000"})<-[* bfs]-(v) 
-WHERE NOT v:Leaf SET v.value = 0;
-MATCH (u:Leaf {id: "85000"})<-[* bfs]-(v)
-WITH v ORDER BY v.topological_index DESC
-MATCH (v)-->(w) SET v.value = v.value + w.value;

customers/elliott/generate_dag

@@ -1,125 +0,0 @@
-#!/usr/bin/env python3
-# -*- coding: utf-8 -*-
-"""Generates a DAG from JSON spec in [config] and outputs nodes to
-[filename]_nodes, and edges to [filename]_edges in format convertible
-to Memgraph snapshot.
-
-Here's an example JSON spec:
-
-    {
-        "layers": [
-            {
-                "name": "A",
-                "sublayers": 1,
-                "degree_lo": 1,
-                "degree_hi": 3,
-                "nodes": 4
-            },
-            {
-                "name": "B",
-                "sublayers": 3,
-                "degree_lo": 2,
-                "degree_hi": 3,
-                "nodes": 10
-            },
-            {
-                "name": "C",
-                "sublayers": 1,
-                "degree_lo": 1,
-                "degree_hi": 1,
-                "nodes": 5
-            }
-        ]
-    }
-
-Nodes from each layer will be randomly divided into sublayers.  A node can
-only have edges pointing to nodes in lower sublayers of the same layer, or
-to nodes from the layer directly below it. Out-degree is chosen uniformly
-random from [degree_lo, degree_hi] interval."""
-
-import argparse
-from itertools import accumulate
-import json
-import random
-
-
-def _split_into_sum(n, k):
-    assert 1 <= n, "n should be at least 1"
-    assert k <= n, "k shouldn't be greater than n"
-    xs = [0] + sorted(random.sample(range(1, n), k-1)) + [n]
-    return [b - a for a, b in zip(xs, xs[1:])]
-
-
-def generate_dag(graph_config, seed=None):
-    random.seed(seed)
-
-    nodes = []
-    edges = []
-
-    layer_lo = 1
-    for layer in graph_config:
-        sublayers = _split_into_sum(layer['nodes'], layer['sublayers'])
-        sub_range = accumulate([layer_lo] + sublayers)
-        layer['sublayer_range'] = list(sub_range)
-        nodes.extend([
-            (u, layer['name'])
-            for u in range(layer_lo, layer_lo + layer['nodes'])
-        ])
-        layer_lo += layer['nodes']
-
-    edges = []
-
-    for layer, next_layer in zip(graph_config, graph_config[1:]):
-        degree_lo = layer['degree_lo']
-        degree_hi = layer['degree_hi']
-
-        sub_range = layer['sublayer_range']
-        sub_range_next = next_layer['sublayer_range']
-
-        layer_lo = sub_range[0]
-        next_layer_hi = sub_range_next[-1]
-
-        for sub_lo, sub_hi in zip(sub_range, sub_range[1:]):
-            for u in range(sub_lo, sub_hi):
-                num_edges = random.randint(degree_lo, degree_hi)
-                for _ in range(num_edges):
-                    v = random.randint(sub_hi, next_layer_hi - 1)
-                    edges.append((u, v))
-
-        for sub_lo, sub_hi in zip(sub_range_next, sub_range_next[1:]):
-            for u in range(sub_lo, sub_hi):
-                v = random.randint(layer_lo, sub_lo - 1)
-                edges.append((v, u))
-
-    return nodes, edges
-
-
-if __name__ == '__main__':
-    parser = argparse.ArgumentParser(
-        formatter_class=argparse.RawDescriptionHelpFormatter,
-        description=__doc__)
-    parser.add_argument('config', type=str, help='graph config JSON file')
-    parser.add_argument('filename', type=str,
-                        help='nodes will be stored to filename_nodes, '
-                        'edges to filename_edges')
-    parser.add_argument('--seed', type=int,
-                        help='seed for the random generator (default = '
-                        'current system time)')
-    args = parser.parse_args()
-
-    with open(args.config, 'r') as f:
-        graph_config = json.loads(f.read())['layers']
-
-    nodes, edges = generate_dag(graph_config, seed=args.seed)
-
-    #  print nodes into CSV file
-    with open('{}_nodes'.format(args.filename), 'w') as out:
-        out.write('nodeId:ID(Node),name,topological_index:Int,:LABEL\n')
-        for node_id, layer in nodes:
-            out.write('{0},{1}{0},{0},{1}\n'.format(node_id, layer))
-
-    # print edges into CSV file
-    with open('{}_edges'.format(args.filename), 'w') as out:
-        out.write(':START_ID(Node),:END_ID(Node),:TYPE\n')
-        for u, v in edges:
-            out.write('{},{},child\n'.format(u, v))

customers/elliott/graph1.json

@@ -1,39 +0,0 @@
-{
-    "layers": [
-        { 
-            "name": "Root",
-            "sublayers": 1,
-            "degree_lo": 1,
-            "degree_hi": 10,
-            "nodes": 20000
-        },
-        { 
-            "name": "Category",
-            "sublayers": 5,
-            "degree_lo": 1,
-            "degree_hi": 10,
-            "nodes": 20000
-        },
-        {   
-            "name": "Group",
-            "sublayers": 1,
-            "degree_lo": 20,
-            "degree_hi": 40,
-            "nodes": 20000
-        },
-        {
-            "name": "CustomGroup",
-            "sublayers": 15,
-            "degree_lo": 20,
-            "degree_hi": 40,
-            "nodes": 20000
-        },
-        { 
-            "name": "Leaf",
-            "sublayers": 1,
-            "degree_lo": 1,
-            "degree_hi": 1,
-            "nodes": 20000
-        }
-    ]
-}

customers/elliott/graph2.json

@@ -1,39 +0,0 @@
-{
-    "layers": [
-        { 
-            "name": "Root",
-            "sublayers": 1,
-            "degree_lo": 1,
-            "degree_hi": 10,
-            "nodes": 20000
-        },
-        { 
-            "name": "Category",
-            "sublayers": 5,
-            "degree_lo": 1,
-            "degree_hi": 10,
-            "nodes": 20000
-        },
-        {   
-            "name": "Group",
-            "sublayers": 1,
-            "degree_lo": 50,
-            "degree_hi": 100,
-            "nodes": 20000
-        },
-        {
-            "name": "CustomGroup",
-            "sublayers": 15,
-            "degree_lo": 50,
-            "degree_hi": 100,
-            "nodes": 20000
-        },
-        { 
-            "name": "Leaf",
-            "sublayers": 1,
-            "degree_lo": 50,
-            "degree_hi": 100,
-            "nodes": 20000
-        }
-    ]
-}

customers/elliott/graph3.json

@@ -1,39 +0,0 @@
-{
-    "layers": [
-        { 
-            "name": "Root",
-            "sublayers": 1,
-            "degree_lo": 10,
-            "degree_hi": 50,
-            "nodes": 20000
-        },
-        { 
-            "name": "Category",
-            "sublayers": 5,
-            "degree_lo": 10,
-            "degree_hi": 50,
-            "nodes": 20000
-        },
-        {   
-            "name": "Group",
-            "sublayers": 1,
-            "degree_lo": 50,
-            "degree_hi": 100,
-            "nodes": 20000
-        },
-        {
-            "name": "CustomGroup",
-            "sublayers": 15,
-            "degree_lo": 50,
-            "degree_hi": 100,
-            "nodes": 20000
-        },
-        { 
-            "name": "Leaf",
-            "sublayers": 1,
-            "degree_lo": 50,
-            "degree_hi": 100,
-            "nodes": 20000
-        }
-    ]
-}

customers/otto/CMakeLists.txt

@@ -1,3 +0,0 @@
-set(exec_name customers_otto_parallel_connected_components)
-add_executable(${exec_name} parallel_connected_components.cpp)
-target_link_libraries(${exec_name} memgraph_lib)

customers/otto/connected_components_test.py

@@ -1,118 +0,0 @@
-#!/usr/bin/env python3
-# -*- coding: utf-8 -*-
-
-"""
-This script attempts to evaluate the feasibility of using Memgraph for
-Otto group's usecase. The usecase is finding connected componentes in
-a large, very sparse graph (cca 220M nodes, 250M edges), based on a dynamic
-inclusion / exclusion of edges (w.r.t variable parameters and the source node
-type).
-
-This implementation defines a random graph with the given number of nodes
-and edges and looks for connected components using breadth-first expansion.
-Edges are included / excluded based on a simple expression, only demonstrating
-possible usage.
-"""
-
-from argparse import ArgumentParser
-import logging
-from time import time
-from collections import defaultdict
-from math import log2
-from random import randint
-
-from neo4j.v1 import GraphDatabase
-
-log = logging.getLogger(__name__)
-
-
-def generate_graph(sess, node_count, edge_count):
-    # An index that will speed-up edge creation.
-    sess.run("CREATE INDEX ON :Node(id)").consume()
-
-    # Create the given number of nodes with a randomly selected type from:
-    # [0.5, 1.5, 2.5].
-    sess.run(("UNWIND range(0, {} - 1) AS id CREATE "
-              "(:Node {{id: id, type: 0.5 + tointeger(rand() * 3)}})").format(
-                 node_count)).consume()
-
-    # Create the given number of edges, each with a 'value' property of
-    # a random [0, 3.0) float. Each edge connects two random nodes, so the
-    # expected node degree is (edge_count * 2 / node_count). Generate edges
-    # so the connectivity is non-uniform (to produce connected components of
-    # various sizes).
-    sess.run(("UNWIND range(0, {0} - 1) AS id WITH id "
-              "MATCH (from:Node {{id: tointeger(rand() * {1})}}), "
-              "(to:Node {{id: tointeger(rand() * {1} * id / {0})}}) "
-              "CREATE (from)-[:Edge {{value: 3 * rand()}}]->(to)").format(
-                 edge_count, node_count)).consume()
-
-
-def get_connected_ids(sess, node_id):
-    # Matches a node with the given ID and returns the IDs of all the nodes
-    # it is connected to. Note that within the BFS lambda expression there
-    # is an expression used to filter out edges expanded over.
-    return sess.run((
-        "MATCH (from:Node {{id: {}}})-"
-        "[*bfs (e, n | abs(from.type - e.value) < 0.80)]-(d) "
-        "RETURN count(*) AS c").format(node_id)).data()[0]['c']
-
-
-def parse_args():
-    parser = ArgumentParser(description=__doc__)
-    parser.add_argument('--endpoint', type=str, default='localhost:7687',
-                        help='Memgraph instance endpoint. ')
-    parser.add_argument('--node-count', type=int, default=1000,
-                        help='The number of nodes in the graph')
-    parser.add_argument('--edge-count', type=int, default=1000,
-                        help='The number of edges in the graph')
-    parser.add_argument('--sample-count', type=int, default=None,
-                        help='The number of samples to take')
-    return parser.parse_args()
-
-
-def main():
-    args = parse_args()
-    logging.basicConfig(level=logging.INFO)
-    log.info("Memgraph - Otto test database generator")
-    logging.getLogger("neo4j").setLevel(logging.WARNING)
-
-    driver = GraphDatabase.driver(
-        'bolt://' + args.endpoint,
-        auth=("ignored", "ignored"),
-        encrypted=False)
-    sess = driver.session()
-
-    sess.run("MATCH (n) DETACH DELETE n").consume()
-
-    log.info("Generating graph with %s nodes and %s edges...",
-             args.node_count, args.edge_count)
-    generate_graph(sess, args.node_count, args.edge_count)
-
-    # Track which vertices have been found as part of a component.
-    start_time = time()
-    max_query_time = 0
-    log.info("Looking for connected components...")
-    # Histogram of log2 sizes of connected components found.
-    histogram = defaultdict(int)
-    sample_count = args.sample_count if args.sample_count else args.node_count
-    for i in range(sample_count):
-        node_id = randint(0, args.node_count - 1)
-        query_start_time = time()
-        log2_size = int(log2(1 + get_connected_ids(sess, node_id)))
-        max_query_time = max(max_query_time, time() - query_start_time)
-        histogram[log2_size] += 1
-    elapsed = time() - start_time
-    log.info("Connected components found in %.2f sec (avg %.2fms, max %.2fms)",
-             elapsed, elapsed / sample_count * 1000, max_query_time * 1000)
-    log.info("Component size histogram (count | range)")
-    for log2_size, count in sorted(histogram.items()):
-        log.info("\t%5d | %d - %d", count, 2 ** log2_size,
-                 2 ** (log2_size + 1) - 1)
-
-    sess.close()
-    driver.close()
-
-
-if __name__ == '__main__':
-    main()

customers/otto/parallel_connected_components.cpp

@@ -1,207 +0,0 @@
-#include <algorithm>
-#include <limits>
-#include <mutex>
-#include <random>
-#include <set>
-#include <stack>
-#include <thread>
-
-#include "gflags/gflags.h"
-#include "glog/logging.h"
-
-#include "data_structures/union_find.hpp"
-#include "database/graph_db.hpp"
-#include "database/graph_db_accessor.hpp"
-#include "storage/property_value.hpp"
-#include "threading/sync/spinlock.hpp"
-#include "utils/bound.hpp"
-#include "utils/timer.hpp"
-
-DEFINE_int32(thread_count, 1, "Number of threads");
-DEFINE_int32(vertex_count, 1000, "Number of vertices");
-DEFINE_int32(edge_count, 1000, "Number of edges");
-DECLARE_int32(gc_cycle_sec);
-
-static const std::string kLabel{"kLabel"};
-static const std::string kProperty{"kProperty"};
-
-void GenerateGraph(database::GraphDb &db) {
-  {
-    database::GraphDbAccessor dba{db};
-    dba.BuildIndex(dba.Label(kLabel), dba.Property(kProperty));
-    dba.Commit();
-  }
-
-  // Randomize the sequence of IDs of created vertices and edges to simulate
-  // real-world lack of locality.
-  auto make_id_vector = [](size_t size) {
-    gid::Generator generator{0};
-    std::vector<gid::Gid> ids(size);
-    for (size_t i = 0; i < size; ++i)
-      ids[i] = generator.Next(std::experimental::nullopt);
-    std::random_shuffle(ids.begin(), ids.end());
-    return ids;
-  };
-
-  std::vector<VertexAccessor> vertices;
-  vertices.reserve(FLAGS_vertex_count);
-  {
-    CHECK(FLAGS_vertex_count % FLAGS_thread_count == 0)
-        << "Thread count must be a factor of vertex count";
-    LOG(INFO) << "Generating " << FLAGS_vertex_count << " vertices...";
-    utils::Timer timer;
-    auto vertex_ids = make_id_vector(FLAGS_vertex_count);
-
-    std::vector<std::thread> threads;
-    SpinLock vertices_lock;
-    for (int i = 0; i < FLAGS_thread_count; ++i) {
-      threads.emplace_back([&db, &vertex_ids, &vertices, &vertices_lock, i]() {
-        database::GraphDbAccessor dba{db};
-        auto label = dba.Label(kLabel);
-        auto property = dba.Property(kProperty);
-        auto batch_size = FLAGS_vertex_count / FLAGS_thread_count;
-        for (int j = i * batch_size; j < (i + 1) * batch_size; ++j) {
-          auto vertex = dba.InsertVertex(vertex_ids[j]);
-          vertex.add_label(label);
-          vertex.PropsSet(property, static_cast<int64_t>(vertex_ids[j]));
-          vertices_lock.lock();
-          vertices.emplace_back(vertex);
-          vertices_lock.unlock();
-        }
-        dba.Commit();
-      });
-    }
-    for (auto &t : threads) t.join();
-    LOG(INFO) << "Generated " << FLAGS_vertex_count << " vertices in "
-              << timer.Elapsed().count() << " seconds.";
-  }
-  {
-    database::GraphDbAccessor dba{db};
-    for (int i = 0; i < FLAGS_vertex_count; ++i)
-      vertices[i] = *dba.Transfer(vertices[i]);
-
-    LOG(INFO) << "Generating " << FLAGS_edge_count << " edges...";
-    auto edge_ids = make_id_vector(FLAGS_edge_count);
-    std::mt19937 pseudo_rand_gen{std::random_device{}()};
-    std::uniform_int_distribution<> rand_dist{0, FLAGS_vertex_count - 1};
-    auto edge_type = dba.EdgeType("edge");
-    utils::Timer timer;
-    for (int i = 0; i < FLAGS_edge_count; ++i)
-      dba.InsertEdge(vertices[rand_dist(pseudo_rand_gen)],
-                     vertices[rand_dist(pseudo_rand_gen)], edge_type,
-                     edge_ids[i]);
-    dba.Commit();
-    LOG(INFO) << "Generated " << FLAGS_edge_count << " edges in "
-              << timer.Elapsed().count() << " seconds.";
-  }
-}
-
-auto EdgeIteration(database::GraphDb &db) {
-  database::GraphDbAccessor dba{db};
-  int64_t sum{0};
-  for (auto edge : dba.Edges(false)) sum += edge.from().gid() + edge.to().gid();
-  return sum;
-}
-
-auto VertexIteration(database::GraphDb &db) {
-  database::GraphDbAccessor dba{db};
-  int64_t sum{0};
-  for (auto v : dba.Vertices(false))
-    for (auto e : v.out()) sum += e.gid() + e.to().gid();
-  return sum;
-}
-
-auto ConnectedComponentsEdges(database::GraphDb &db) {
-  UnionFind<int64_t> connectivity{FLAGS_vertex_count};
-  database::GraphDbAccessor dba{db};
-  for (auto edge : dba.Edges(false))
-    connectivity.Connect(edge.from().gid(), edge.to().gid());
-  return connectivity.Size();
-}
-
-auto ConnectedComponentsVertices(database::GraphDb &db) {
-  UnionFind<int64_t> connectivity{FLAGS_vertex_count};
-  database::GraphDbAccessor dba{db};
-  for (auto from : dba.Vertices(false)) {
-    for (auto out_edge : from.out())
-      connectivity.Connect(from.gid(), out_edge.to().gid());
-  }
-  return connectivity.Size();
-}
-
-auto ConnectedComponentsVerticesParallel(database::GraphDb &db) {
-  UnionFind<int64_t> connectivity{FLAGS_vertex_count};
-  SpinLock connectivity_lock;
-
-  // Define bounds of vertex IDs for each thread to use.
-  std::vector<PropertyValue> bounds;
-  for (int64_t i = 0; i < FLAGS_thread_count; ++i)
-    bounds.emplace_back(i * FLAGS_vertex_count / FLAGS_thread_count);
-  bounds.emplace_back(std::numeric_limits<int64_t>::max());
-
-  std::vector<std::thread> threads;
-  for (int i = 0; i < FLAGS_thread_count; ++i) {
-    threads.emplace_back(
-        [&connectivity, &connectivity_lock, &bounds, &db, i]() {
-          database::GraphDbAccessor dba{db};
-          for (auto from :
-               dba.Vertices(dba.Label(kLabel), dba.Property(kProperty),
-                            utils::MakeBoundInclusive(bounds[i]),
-                            utils::MakeBoundExclusive(bounds[i + 1]), false)) {
-            for (auto out_edge : from.out()) {
-              std::lock_guard<SpinLock> lock{connectivity_lock};
-              connectivity.Connect(from.gid(), out_edge.to().gid());
-            }
-          }
-        });
-  }
-  for (auto &t : threads) t.join();
-  return connectivity.Size();
-}
-
-auto Expansion(database::GraphDb &db) {
-  std::vector<int> component_ids(FLAGS_vertex_count, -1);
-  int next_component_id{0};
-  std::stack<VertexAccessor> expansion_stack;
-  database::GraphDbAccessor dba{db};
-  for (auto v : dba.Vertices(false)) {
-    if (component_ids[v.gid()] != -1) continue;
-    auto component_id = next_component_id++;
-    expansion_stack.push(v);
-    while (!expansion_stack.empty()) {
-      auto next_v = expansion_stack.top();
-      expansion_stack.pop();
-      if (component_ids[next_v.gid()] != -1) continue;
-      component_ids[next_v.gid()] = component_id;
-      for (auto e : next_v.out()) expansion_stack.push(e.to());
-      for (auto e : next_v.in()) expansion_stack.push(e.from());
-    }
-  }
-
-  return next_component_id;
-}
-
-int main(int argc, char **argv) {
-  gflags::ParseCommandLineFlags(&argc, &argv, true);
-  google::InitGoogleLogging(argv[0]);
-  FLAGS_gc_cycle_sec = -1;
-
-  database::SingleNode db;
-  GenerateGraph(db);
-  auto timed_call = [&db](auto callable, const std::string &descr) {
-    LOG(INFO) << "Running " << descr << "...";
-    utils::Timer timer;
-    auto result = callable(db);
-    LOG(INFO) << "\tDone in " << timer.Elapsed().count()
-              << " seconds, result: " << result;
-  };
-  timed_call(EdgeIteration, "Edge iteration");
-  timed_call(VertexIteration, "Vertex iteration");
-  timed_call(ConnectedComponentsEdges, "Connected components - Edges");
-  timed_call(ConnectedComponentsVertices, "Connected components - Vertices");
-  timed_call(ConnectedComponentsVerticesParallel,
-             "Parallel connected components - Vertices");
-  timed_call(Expansion, "Expansion");
-
-  return 0;
-}

customers/ravelin/fraud_detection.oc

@@ -1,5 +0,0 @@
-WITH tointeger(rand() * 40000000) AS from_id
-MATCH (from:Node {id : from_id}) WITH from
-MATCH path = (from)-[*bfs..50 (e, n | degree(n) < 50)]->(to) WITH path LIMIT 10000 WHERE to.fraudulent
-RETURN path, size(path)
-

customers/ravelin/snapshot_gen_config.json

@@ -1,31 +0,0 @@
-{
-   "indexes":[
-      "Node.id"
-   ],
-   "nodes":[
-      {
-         "count":40000000,
-         "labels":[
-            "Node"
-         ],
-         "properties":{
-            "id":{
-               "type":"counter",
-               "param":"Node.id"
-            },
-            "fraudulent":{
-               "type":"bernoulli",
-               "param":0.0005
-            }
-         }
-      }
-   ],
-   "edges":[
-      {
-         "count":80000000,
-         "from":"Node",
-         "to":"Node",
-         "type":"Edge"
-      }
-   ]
-}

customers/strata2018/card_fraud_config.json

@@ -1,20 +0,0 @@
-{
-  "indexes" : ["Card.id", "Pos.id", "Transaction.fraud_reported"],
-  "nodes" : [
-    {
-      "count_per_worker" : 1250000,
-      "label" : "Card"
-    },
-    {
-      "count_per_worker" : 1250000,
-      "label" : "Pos"
-    },
-    {
-      "count_per_worker" : 2500000,
-      "label" : "Transaction"
-    }
-  ],
-  "compromised_pos_probability" : 0.2,
-  "fraud_reported_probability" : 0.1,
-  "hop_probability" : 0.1
-}

docs/.gitignore

@@ -1,6 +1,2 @@
 doxygen/html/
 doxygen/latex/
-user_technical/.bundle_community/
-user_technical/.couscous/
-user_technical/couscous.phar
-user_technical/docs.tar.gz

docs/csv-import-tool/README.md

@@ -0,0 +1,230 @@
+# CSV Import Tool Documentation
+
+CSV is a universal and very versatile data format used to store large quantities
+of data.  Each Memgraph database instance has a CSV import tool installed called
+`mg_import_csv`.  The CSV import tool should be used for initial bulk ingestion
+of data into the database.  Upon ingestion, the CSV importer creates a snapshot
+that will be used by the database to recover its state on its next startup.
+
+If you are already familiar with the Neo4j bulk import tool, then using the
+`mg_import_csv` tool should be easy.  The CSV import tool is fully compatible
+with the [Neo4j CSV
+format](https://neo4j.com/docs/operations-manual/current/tools/import/). If you
+already have a pipeline set-up for Neo4j, you should only replace `neo4j-admin
+import` with `mg_import_csv`.
+
+## CSV File Format
+
+Each row of a CSV file represents a single entry that should be imported into
+the database.  Both nodes and relationships can be imported into the database
+using CSV files.
+
+Each set of CSV files must have a header that describes the data that is stored
+in the CSV files. Each field in the CSV header is in the format
+`<name>[:<type>]` which identifies the name that should be used for that column
+and the type that should be used for that column. The type is optional and
+defaults to `string` (see the following chapter).
+
+Each CSV field must be divided using the delimiter and each CSV field can either
+be quoted or unquoted. When the field is quoted, the first and last character in
+the field *must* be the quote character. If the field isn't quoted, and a quote
+character appears in it, it is treated as a regular character. If a quote
+character appears inside a quoted string then the quote character must be
+doubled in order to escape it. Line feeds and carriage returns are ignored in
+the CSV file, also, the file can't contain a NULL character.
+
+## Properties
+
+Both nodes and relationships can have properties added to them.  When importing
+properties, the CSV importer uses the name specified in the header of the
+corresponding CSV column for the name of the property.  A property is designated
+by specifying one of the following types in the header:
+ - `integer`, `int`, `long`, `byte`, `short`: creates an integer property
+ - `float`, `double`: creates a float property
+ - `boolean`, `bool`: creates a boolean property
+ - `string`, `char`: creates a string property
+
+When importing a boolean value, the CSV field should contain exactly the text
+`true` to import a `True` boolean value.  All other text values are treated as a
+boolean value `False`.
+
+If you want to import an array of values, you can do so by appending `[]` to any
+of the above types.  The values of the array are then determined by splitting
+the raw CSV value using the array delimiter character.
+
+Assuming that the array delimiter is `;`, the following example:
+```plaintext
+first_name,last_name:string,number:integer,aliases:string[]
+John,Doe,1,Johnny;Jo;J-man
+Melissa,Doe,2,Mel
+```
+
+Will yield these results:
+```plaintext
+CREATE ({first_name: "John", last_name: "Doe", number: 1, aliases: ["Johnny", "Jo", "J-man"]});
+CREATE ({first_name: "Melissa", last_name: "Doe", number: 2, aliases: ["Mel"]});
+```
+### Nodes
+
+When importing nodes, several more types can be specified in the header of the
+CSV file (along with all property types):
+ - `ID`: id of the node that should be used as the node ID when importing
+   relationships
+ - `LABEL`: designates that the field contains additional labels for the node
+ - `IGNORE`: designates that the field should be ignored
+
+The `ID` field type sets the internal ID that will be used for the node when
+creating relationships.  It is optional and nodes that don't have an ID value
+specified will be imported, but can't be connected to any relationships.  If you
+want to save the ID value as a property in the database, just specify a name for
+the ID (`user_id:ID`).  If you just want to use the ID during the import, leave
+out the name of the field (`:ID`).  The `ID` field also supports creating
+separate ID spaces.  The ID space is specified with the ID space name appended
+to the `ID` type in parentheses (`ID(user)`).  That allows you to have the same
+IDs (by value) for multiple different node files (for example, numbers from 1 to
+N).  The IDs in each ID space will be treated as an independent set of IDs that
+don't interfere with IDs in another ID space.
+
+The `LABEL` field type adds additional labels to the node.  The value is treated
+as an array type so that multiple additional labels can be specified for each
+node.  The value is split using the array delimiter (`--array-delimiter` flag).
+
+### Relationships
+
+In order to be able to import relationships, you must import the nodes in the
+same invocation of `mg_import_csv` that is used to import the relationships.
+
+When importing relationships, several more types can be specified in the header
+of the CSV file (along with all property types):
+ - `START_ID`: id of the start node that should be connected with the
+   relationship
+ - `END_ID`: id of the end node that should be connected with the relationship
+ - `TYPE`: designates the type of the relationship
+ - `IGNORE`: designates that the field should be ignored
+
+The `START_ID` field type sets the start node that should be connected with the
+relationship to the end node.  The field *must* be specified and the node ID
+must be one of the node IDs that were specified in the node CSV files.  The name
+of this field is ignored.  If the node ID is in an ID space, you can specify the
+ID space for the in the same way as for the node ID (`START_ID(user)`).
+
+The `END_ID` field type sets the end node that should be connected with the
+relationship to the start node.  The field *must* be specified and the node ID
+must be one of the node IDs that were specified in the node CSV files.  The name
+of this field is ignored.  If the node ID is in an ID space, you can specify the
+ID space for the in the same way as for the node ID (`END_ID(user)`).
+
+The `TYPE` field type sets the type of the relationship.  Each relationship
+*must* have a relationship type, but it doesn't necessarily need to be specified
+in the CSV file, it can also be set externally for the whole CSV file.  The name
+of this field is ignored.
+
+## CSV Importer Flags
+
+The importer has many command line options that allow you to customize the way
+the importer loads your data.
+
+The two main flags that are used to specify the input CSV files are `--nodes`
+and `--relationships`. Basic description of these flags is provided in the table
+and more detailed explainion can be found further down bellow.
+
+
+| Flag                  | Description  |
+|-----------------------| -------------- |
+|`--nodes`                | Used to specify CSV files that contain the nodes to the importer. |
+|`--relationships`        |  Used to specify CSV files that contain the relationships to the importer.|
+|`--delimiter`            | Sets the delimiter that should be used when splitting the CSV fields (default `,`)|
+|`--quote`                | Sets the quote character that should be used to quote a CSV field (default `"`)|
+|`--array-delimiter`      | Sets the delimiter that should be used when splitting array values (default `;`)|
+|`--id-type`              | Specifies which data type should be used to store the supplied <br /> node IDs when storing them as properties (if the field name is supplied). <br /> The supported values are either `STRING` or `INTEGER`. (default `STRING`)|
+|`--ignore-empty-strings` | Instructs the importer to treat all empty strings as `Null` values  <br /> instead of an empty string value (default `false`)|
+|`--ignore-extra-columns` | Instructs the importer to ignore all columns (instead of raising an error) <br /> that aren't specified after the last specified column in the CSV header. (default `false`) |
+| `--skip-bad-relationships`| Instructs the importer to ignore all relationships (instead of raising an error) <br /> that refer to nodes that don't exist in the node files. (default `false`) |
+|`--skip-duplicate-nodes`  | Instructs the importer to ignore all duplicate nodes (instead of raising an error).  <br /> Duplicate nodes are nodes that have an ID that is the same as another node that was already imported. (default `false`) |
+| `--trim-strings`| Instructs the importer to trim all of the loaded CSV field values before processing them further. <br /> Trimming the fields removes all leading and trailing whitespace from them. (default `false`) |
+
+The `--nodes` and  `--relationships` flags are used to specify CSV files that
+contain the nodes and relationships to the importer.  Multiple files can be
+specified in each supplied `--nodes` or `--relationships` flag. Files that are
+supplied in one `--nodes` or `--relationships` flag are treated by the CSV
+parser as one big CSV file.  Only the first line of the first file is parsed for
+the CSV header, all other files (and rows) are treated as data.  This is useful
+when you have a very large CSV file and don't want to edit its first line just
+to add a CSV header.  Instead, you can specify the header in a separate file
+(e.g. `users_header.csv` or `friendships_header.csv`) and have the data intact
+in the large file (e.g. `users.csv` or `friendships.csv`).  Also, you can supply
+additional labels for each set of node files.
+
+The format of `--nodes` flag is:
+`[<label>[:<label>]...=]<file>[,<file>][,<file>]...`.  Take note that only the
+first `<file>` part is mandatory, all other parts of the flag value are
+optional. Multiple `--nodes` flags can be supplied to describe multiple sets of
+different node files.  For the importer to work, at least one `--nodes` flag
+*must* be supplied.
+
+The format of `--relationships` flag is: `[<type>=]<file>[,<file>][,<file>]...`.
+Take note that only the first `<file>` part is mandatory, all other parts of the
+flag value are optional.  Multiple `--relationships` flags can be supplied to
+describe multiple sets of different relationship files.  The `--relationships`
+flag isn't mandatory.
+
+## CSV Parser Logic
+
+The CSV parser uses the same logic as the standard Python CSV parser.  The data
+is parsed in the same way as the following snippet:
+
+```python
+import csv
+for row in csv.reader(stream, strict=True):
+    # process 'row'
+```
+
+Python uses 'excel' as the default dialect when parsing CSV files and the
+default settings for the CSV parser are:
+ - delimiter: `','`
+ - doublequote: `True`
+ - escapechar: `None`
+ - lineterminator: `'\r\n'`
+ - quotechar: `'"'`
+ - skipinitialspace: `False`
+
+The above snippet can be expanded to:
+
+```python
+import csv
+for row in csv.reader(stream, delimiter=',', doublequote=True,
+                      escapechar=None, lineterminator='\r\n',
+                      quotechar='"', skipinitialspace=False,
+                      strict=True):
+    # process 'row'
+```
+
+For more information about the meaning of the above values, see:
+https://docs.python.org/3/library/csv.html#csv.Dialect
+
+## Errors
+
+1. [Skipping duplicate node with ID '{}'. For more details, visit:
+   memgr.ph/csv-import-tool.](#error-1)
+2. [Skipping bad relationship with START_ID '{}'. For more details, visit:
+   memgr.ph/csv-import-tool.](#error-2)
+3. [Skipping bad relationship with END_ID '{}'. For more details, visit:
+   memgr.ph/csv-import-tool.](#error-3)
+
+## Skipping duplicate node with ID {} {#error-1}
+
+Duplicate nodes are nodes that have an ID that is the same as another node that
+was already imported. You can instruct the importer to ignore all duplicate
+nodes (instead of raising an error) by using the `--skip-duplicate-nodes` flag.
+
+## Skipping bad relationship with START_ID {} {#error-2}
+
+A node with the id `START_ID` doesn't exist. You can instruct the importer to
+ignore all bad relationships (instead of raising an error) that refer to nodes
+that don't exist in the node files by using the `--skip-bad-relationships` flag.
+
+## Skipping bad relationship with END_ID {} {#error-3}
+
+A node with the id `END_ID` doesn't exist. You can instruct the importer to
+ignore all bad relationships (instead of raising an error) that refer to nodes
+that don't exist in the node files by using the `--skip-bad-relationships` flag.

docs/dev/cpp-code-conventions.md

@@ -1,193 +0,0 @@
-# C++ Code Conventions
-
-This chapter describes code conventions which should be followed when writing
-C++ code.
-
-## Code Style
-
-Memgraph uses the Google Style Guide for C++ in most of its code. You should
-follow them whenever writing new code. The style guide can be found
-[here](https://google.github.io/styleguide/cppguide.html).
-
-### Additional Style Conventions
-
-Code style conventions which are left undefined by Google are specified here.
-
-#### Template parameter naming
-
-Template parameter names should start with capital letter 'T' followed by a
-short descriptive name. For example:
-
-```cpp
-template <typename TKey, typename TValue>
-class KeyValueStore
-```
-
-## Code Formatting
-
-You should install `clang-format` and run it on code you change or add. The
-root of Memgraph's project contains the `.clang-format` file, which specifies
-how formatting should behave. Running `clang-format -style=file` in the
-project's root will read the file and behave as expected. For ease of use, you
-should integrate formatting with your favourite editor.
-
-The code formatting isn't enforced, because sometimes manual formatting may
-produce better results. Though, running `clang-format` is strongly encouraged.
-
-## Documentation
-
-Besides following the comment guidelines from [Google Style
-Guide](https://google.github.io/styleguide/cppguide.html#Comments), your
-documentation of the public API should be
-[Doxygen](https://github.com/doxygen/doxygen) compatible. For private parts of
-the code or for comments accompanying the implementation, you are free to
-break doxygen compatibility. In both cases, you should write your
-documentation as full sentences, correctly written in English.
-
-## Doxygen
-
-To start a Doxygen compatible documentation string, you should open your
-comment with either a JavaDoc style block comment (`/**`) or a line comment
-containing 3 slashes (`///`). Take a look at the 2 examples below.
-
-### Block Comment
-
-```cpp
-/**
- * One sentence, brief description.
- *
- * Long form description.
- */
-```
-
-### Line Comment
-
-```cpp
-///
-/// One sentence, brief description.
-///
-/// Long form description.
-///
-```
-
-If you only have a brief description, you may collapse the documentation into
-a single line.
-
-### Block Comment
-
-```cpp
-/** Brief description. */
-```
-
-### Line Comment
-
-```cpp
-/// Brief description.
-```
-
-Whichever style you choose, keep it consistent across the whole file.
-
-Doxygen supports various commands in comments, such as `@file` and `@param`.
-These help Doxygen to render specified things differently or to track them for
-cross referencing. If you want to learn more, take a look at these two links:
-
-  * http://www.stack.nl/~dimitri/doxygen/manual/docblocks.html
-  * http://www.stack.nl/~dimitri/doxygen/manual/commands.html
-
-## Examples
-
-Below are a few examples of documentation from the codebase.
-
-### Function
-
-```cpp
-/**
- * Removes whitespace characters from the start and from the end of a string.
- *
- * @param s String that is going to be trimmed.
- *
- * @return Trimmed string.
- */
-inline std::string Trim(const std::string &s);
-```
-
-### Class
-
-```cpp
-/** Base class for logical operators.
- *
- *  Each operator describes an operation, which is to be performed on the
- *  database. Operators are iterated over using a @c Cursor. Various operators
- *  can serve as inputs to others and thus a sequence of operations is formed.
- */
-class LogicalOperator
-    : public ::utils::Visitable<HierarchicalLogicalOperatorVisitor> {
- public:
-  /** Constructs a @c Cursor which is used to run this operator.
-   *
-   *  @param GraphDbAccessor Used to perform operations on the database.
-   */
-  virtual std::unique_ptr<Cursor> MakeCursor(GraphDbAccessor &db) const = 0;
-
-  /** Return @c Symbol vector where the results will be stored.
-   *
-   *  Currently, outputs symbols are only generated in @c Produce operator.
-   *  @c Skip, @c Limit and @c OrderBy propagate the symbols from @c Produce (if
-   *  it exists as input operator). In the future, we may want this method to
-   *  return the symbols that will be set in this operator.
-   *
-   *  @param SymbolTable used to find symbols for expressions.
-   *  @return std::vector<Symbol> used for results.
-   */
-  virtual std::vector<Symbol> OutputSymbols(const SymbolTable &) const {
-    return std::vector<Symbol>();
-  }
-
-  virtual ~LogicalOperator() {}
-};
-```
-
-### File Header
-
-```cpp
-/// @file visitor.hpp
-///
-/// This file contains the generic implementation of visitor pattern.
-///
-/// There are 2 approaches to the pattern:
-///
-///   * classic visitor pattern using @c Accept and @c Visit methods, and
-///   * hierarchical visitor which also uses @c PreVisit and @c PostVisit
-///   methods.
-///
-/// Classic Visitor
-/// ===============
-///
-/// Explanation on the classic visitor pattern can be found from many
-/// sources, but here is the link to hopefully most easily accessible
-/// information: https://en.wikipedia.org/wiki/Visitor_pattern
-///
-/// The idea behind the generic implementation of classic visitor pattern is to
-/// allow returning any type via @c Accept and @c Visit methods. Traversing the
-/// class hierarchy is relegated to the visitor classes. Therefore, visitor
-/// should call @c Accept on children when visiting their parents. To implement
-/// such a visitor refer to @c Visitor and @c Visitable classes.
-///
-/// Hierarchical Visitor
-/// ====================
-///
-/// Unlike the classic visitor, the intent of this design is to allow the
-/// visited structure itself to control the traversal. This way the internal
-/// children structure of classes can remain private. On the other hand,
-/// visitors may want to differentiate visiting composite types from leaf types.
-/// Composite types are those which contain visitable children, unlike the leaf
-/// nodes. Differentiation is accomplished by providing @c PreVisit and @c
-/// PostVisit methods, which should be called inside @c Accept of composite
-/// types. Regular @c Visit is only called inside @c Accept of leaf types.
-/// To implement such a visitor refer to @c CompositeVisitor, @c LeafVisitor and
-/// @c Visitable classes.
-///
-/// Implementation of hierarchical visiting is modelled after:
-/// http://wiki.c2.com/?HierarchicalVisitorPattern
-```
-

docs/dev/quick-start.md

@@ -1,78 +0,0 @@
-# Quick Start
-
-A short chapter on downloading the Memgraph source, compiling and running.
-
-## Obtaining the Source Code
-
-Memgraph uses `git` for source version control. You will need to install `git`
-on your machine before you can download the source code.
-
-On Debian systems, you can do it inside a terminal with the following
-command:
-
-    sudo apt-get install git
-
-On ArchLinux or Gentoo, you probably already know what to do.
-
-After installing `git`, you are now ready to fetch your own copy of Memgraph
-source code. Run the following command:
-
-    git clone https://phabricator.memgraph.io/diffusion/MG/memgraph.git
-
-The above will create a `memgraph` directory and put all source code there.
-
-## Compiling Memgraph
-
-With the source code, you are now ready to compile Memgraph. Well... Not
-quite. You'll need to download Memgraph's dependencies first.
-
-In your terminal, position yourself in the obtained memgraph directory.
-
-    cd memgraph
-
-### Installing Dependencies
-
-On Debian systems, all of the dependencies should be setup by running the
-`init` script:
-
-    ./init -s
-
-Currently, other systems aren't supported in the `init` script. But you can
-issue the needed steps manually. First run the `init` script.
-
-    ./init
-
-The script will output the required packages, which you should be able to
-install via your favorite package manager. For example, `pacman` on ArchLinux.
-After installing the packages, issue the following commands:
-
-    mkdir -p build
-    ./libs/setups.sh
-
-### Compiling
-
-With all of the dependencies installed, you need to configure the build
-system. To do that, execute the following:
-
-    cd build
-    cmake ..
-
-If everything went OK, you can now, finally, compile Memgraph.
-
-    make -j$(nproc)
-
-### Running
-
-After the compilation verify that Memgraph works:
-
-    ./memgraph --version
-
-To make extra sure, run the unit tests:
-
-    ctest -R unit -j$(nproc)
-
-## Problems
-
-If you have any trouble running the above commands, contact your nearest
-developer who successfully built Memgraph. Ask for help and insist on getting
-this document updated with correct steps!

docs/dev/workflow.md

@@ -1,177 +0,0 @@
-# Memgraph Workflow
-
-This chapter describes the usual workflow for working on Memgraph.
-
-## Git
-
-Memgraph uses [git](https://git-scm.com/) for source version control. If you
-obtained the source, you probably already have it installed. Before you can
-track new changes, you need to setup some basic information.
-
-First, tell git your name:
-
-    git config --global user.name "FirstName LastName"
-
-Then, set your Memgraph email:
-
-    git config --global user.email "my.email@memgraph.com"
-
-Finally, make git aware of your favourite editor:
-
-    git config --global core.editor "vim"
-
-## Phabricator
-
-All of the code in Memgraph needs to go through code review before it can be
-accepted in the codebase. This is done through
-[Phabricator](https://phacility.com/phabricator/). The command line tool for
-interfacing with Phabricator is
-[arcanist](https://phacility.com/phabricator/arcanist/). You should already
-have it installed if you followed the steps in [Quick Start](quick-start.md).
-
-The only required setup is to go in the root of Memgraph's project and run:
-
-    arc install-certificate
-
-## Working on Your Feature Branch
-
-Git has a concept of source code *branches*. The `master` branch contains all
-of the changes which were reviewed and accepted in Memgraph's code base. The
-`master` branch is selected by default.
-
-### Creating a Branch
-
-When working on a new feature or fixing a bug, you should create a new branch
-out of the `master` branch. For example, let's say you are adding static type
-checking to the query language compiler. You would create a branch called
-`mg_query_static_typing` with the following command:
-
-    git branch mg_query_static_typing
-
-To switch to that branch, type:
-
-    git checkout mg_query_static_typing
-
-Since doing these two steps will happen often, you can use a shortcut command:
-
-    git checkout -b mg_query_static_typing
-
-Note that a branch is created from the currently selected branch. So, if you
-wish to create another branch from `master` you need to switch to `master`
-first.
-
-The usual convention for naming your branches is `mg_<feature_name>`, you may
-switch underscores ('\_') for hyphens ('-').
-
-Do take care not to mix the case of your branch names! Certain operating
-systems (like Windows) don't distinguish the casing in git branches. This may
-cause hard to track down issues when trying to switch branches. Therefore, you
-should always name your branches with lowercase letters.
-
-### Making and Committing Changes
-
-When you have a branch for your new addition, you can now actually start
-implementing it. After some amount of time, you may have created new files,
-modified others and maybe even deleted unused files. You need to tell git to
-track those changes. This is accomplished with `git add` and `git rm`
-commands.
-
-    git add path-to-new-file path-to-modified-file
-    git rm path-to-deleted-file
-
-To check that everything is correctly tracked, you may use the `git status`
-command. It will also print the name of the currently selected branch.
-
-If everything seems OK, you should commit these changes to git.
-
-    git commit
-
-You will be presented with an editor where you need to type the commit
-message. Writing a good commit message is an art in itself. You should take a
-look at the links below. We try to follow these conventions as much as
-possible.
-
-  * [How to Write a Git Commit Message](http://chris.beams.io/posts/git-commit/)
-  * [A Note About Git Commit Messages](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html)
-  * [stopwritingramblingcommitmessages](http://stopwritingramblingcommitmessages.com/)
-
-### Sending Changes on a Review
-
-After finishing your work on your feature branch, you will want to send it on
-code review. This is done through Arcanist. To do that, run the following
-command:
-
-    arc diff
-
-You will, once again, be presented with an editor where you need to describe
-your whole work. `arc` will by default fill that description with your commit
-messages. The title and summary of your work should also follow the
-conventions of git messages as described above. If you followed the
-guidelines, the message filled by `arc` should be fine.
-
-In addition to the message, you need to fill the `Reviewers:` line with
-usernames of people who should do the code review.
-
-You changes will be visible on Phabricator as a so called "diff". You can find
-the default view of active diffs
-[here](https://phabricator.memgraph.io/differential/)
-
-### Updating Changes Based on Review
-
-When you get comments in the code review, you will want to make additional
-modifications to your work. The same workflow as before applies: [Making and
-Committing Changes](#making-and-committing-changes)
-
-After making those changes, send them back on code review:
-
-    arc diff
-
-
-### Updating From New Master
-
-Let's say that, while you were working, someone else added some new features
-to the codebase that you would like to use in your current work. To obtain
-those changes you should update your `master` branch:
-
-    git checkout master
-    git pull origin master
-
-Now, these changes are on `master`, but you want them in your local branch. To
-do that, use `git rebase`:
-
-    git checkout mg_query_static_typing
-    git rebase master
-
-During `git rebase`, you may get reports that some files have conflicting
-changes. If you need help resolving them, don't be afraid to ask around! After
-you've resolved them, mark them as done with `git add` command. You may
-then continue with `git rebase --continue`.
-
-After the `git rebase` is done, you will now have new changes from `master` on
-your feature branch as if you just created and started working on that branch.
-You may continue with the usual workflow of [Making and Committing
-Changes](#making-and-committing-changes) and [Sending Changes on a
-Review](#sending-changes-on-a-review).
-
-### Sending Your Changes on Master Branch
-
-When your changes pass the code review, you are ready to integrate them in the
-`master` branch. To do that, run the following command:
-
-    arc land
-
-Arcanist will take care of obtaining the latest changes from `master` and
-merging your changes on top. If the `land` was successful, Arcanist will
-delete your local branch and you will be back on `master`. Continuing from the
-examples above, the deleted branch would be `mg_query_static_typing`.
-
-This marks the completion of your changes, and you are ready to work on
-something else.
-
-### Note For People Familiar With Git
-
-Since Arcanist takes care of merging your git commits and pushing them on
-`master`, you should *never* have to call `git merge` and `git push`. If you
-find yourself typing those commands, check that you are doing the right thing.
-The most common mistake is to use `git merge` instead of `git rebase` for the
-case described in [Updating From New Master](#updating-from-new-master).

docs/doxygen/README.md

@@ -1,7 +1,6 @@
 # Memgraph Code Documentation
 
-IMPORTANT: auto-generated (run doxygen Doxyfile in the project root)
+IMPORTANT: Auto-generated (run doxygen Doxyfile in the project root).
 
-* HTML - just open docs/doxygen/html/index.html
-
-* Latex - run make inside docs/doxygen/latex
+* HTML - Open docs/doxygen/html/index.html.
+* Latex - Run make inside docs/doxygen/latex.

docs/user_technical/README.md

@@ -1,22 +0,0 @@
-# Technical Documentation
-
-## About Memgraph
-
-Memgraph is an ACID compliant high performance transactional in-memory graph
-database management system featuring highly concurrent
-data structures, multi-version concurrency control and asynchronous IO.
-
-[//]: # (When adding a new documentation file, please add it to the list)
-
-## Contents
-
-  * [About Memgraph](#about-memgraph)
-  * [Quick Start](quick-start.md)
-  * [Examples](examples.md)
-  * [Drivers](drivers.md)
-  * [Storable Data Types](data-types.md)
-  * [openCypher Query Language](open-cypher.md)
-  * [Import Tools](import-tools.md)
-  * [Upcoming Features](upcoming-features.md)
-
-[//]: # (Nothing should go below the contents section)

docs/user_technical/bundle_community

@@ -1,58 +0,0 @@
-#!/bin/bash
-
-working_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-build_dir=.bundle_community
-
-# curl and php are required
-if ! which php >/dev/null; then
-    echo "php is required!"
-    exit 1
-fi
-
-cd ${working_dir}
-generator="couscous.phar"
-
-# download the generator if it's not already downloaded
-if [ ! -f ${generator} ]; then
-    curl -OS http://couscous.io/${generator}
-fi
-
-# create build directory
-if [ -d $build_dir ]; then
-    rm -rf $build_dir
-fi
-mkdir $build_dir
-
-# copy all files to build directory
-cp couscous.yml *.md $generator $build_dir
-
-# go to build directory
-cd $build_dir
-
-# modify config file
-cat >> couscous.yml <<EOF
-template:
-    directory: .
-EOF
-
-# create template file
-echo "{{ content|raw }}" > default.twig
-
-# generate the site
-php ${generator} generate
-
-# create contents file
-cd .couscous/generated
-tail -n +$( grep -n "Contents" index.html | cut -d ':' -f 1 ) index.html | \
-    grep href | grep .html | \
-    sed -r 's/^[^"]+"//' | sed -r 's/.html">/ /' | sed -r 's/<.+//' > .contents
-rm index.html
-
-# create archive
-target=docs.tar.gz
-if [ -f $target ]; then
-    rm $target
-fi
-tar -czf $working_dir/$target .contents *.html
-
-echo "Created archive: $working_dir/$target"

docs/user_technical/couscous.yml

@@ -1,2 +0,0 @@
-title: Memgraph
-subTitle: Technical Documentation

docs/user_technical/data-types.md

@@ -1,47 +0,0 @@
-## Storable Data Types
-
-Since *Memgraph* is a *graph* database management system, data is stored in
-the form of graph elements: nodes and edges. Each graph element can also
-contain various types of data. This chapter describes which data types are
-supported in *Memgraph*.
-
-### Node Labels & Edge Types
-
-Each node can have any number of labels. A label is a text value, which can be
-used to *label* or group nodes according to users' desires. A user can change
-labels at any time. Similarly to labels, each edge can have a type,
-represented as text. Unlike nodes, which can have multiple labels or none at
-all, edges *must* have exactly one edge type. Another difference to labels, is
-that the edge types are set upon creation and never modified again.
-
-### Properties
-
-Nodes and edges can store various properties. These are like mappings or
-tables containing property names and their accompanying values. Property names
-are represented as text, while values can be of different types. Each property
-name can store a single value, it is not possible to have multiple properties
-with the same name on a single graph element. Naturally, the same property
-names can be found across multiple graph elements. Also, there are no
-restrictions on the number of properties that can be stored in a single graph
-element. The only restriction is that the values must be of the supported
-types. Following is a table of supported data types.
-
- Type      | Description
------------|------------
- `Null`    | Denotes that the property has no value. This is the same as if the property does not exist.
- `String`  | A character string, i.e. text.
- `Boolean` | A boolean value, either `true` or `false`.
- `Integer` | An integer number.
- `Float`   | A floating-point number, i.e. a real number.
- `List`    | A list containing any number of property values of any supported type. It can be used to store multiple values under a single property name.
- `Map`     | A mapping of string keys to values of any supported type.
-
- Note that even though it's possible to store `List` and `Map` property values, it is not possible to modify them. It is however possible to replace them completely. So, the following queries are legal:
-
-    CREATE (:Node {property: [1, 2, 3]})
-    CREATE (:Node {property: {key: "value"}})
-
-However, these queries are not:
-
-    MATCH (n:Node) SET n.property[0] = 0
-    MATCH (n:Node) SET n.property.key = "other value"

docs/user_technical/drivers.md

@@ -1,205 +0,0 @@
-## Bolt Drivers
-
-Clients connect to Memgraph using the
-[Bolt protocol](https://boltprotocol.org/). Bolt was designed for efficient
-communication with graph databases. Memgraph supports
-[Version 1](https://boltprotocol.org/v1/) of the protocol. Official Bolt
-protocol drivers are provided for multiple programming languages:
-
-  * [Java](https://github.com/neo4j/neo4j-java-driver)
-  * [Python](https://github.com/neo4j/neo4j-python-driver)
-  * [Javascript](https://github.com/neo4j/neo4j-javascript-driver)
-  * [C#](https://github.com/neo4j/neo4j-dotnet-driver)
-
-### Python Driver Example
-
-Neo4j officially supports Python for interacting with an openCypher and Bolt
-compliant database. For details consult the
-[official documentation](http://neo4j.com/docs/api/python-driver) and the
-[GitHub project](https://github.com/neo4j/neo4j-python-driver).  Following is
-a basic usage example:
-
-```
-from neo4j.v1 import GraphDatabase, basic_auth
-
-# Initialize and configure the driver.
-#   * provide the correct URL where Memgraph is reachable;
-#   * use an empty user name and password, and
-#   * disable encryption (not supported).
-driver = GraphDatabase.driver("bolt://localhost:7687",
-                              auth=basic_auth("", ""),
-                              encrypted=False)
-
-# Start a session in which queries are executed.
-session = driver.session()
-
-# Execute openCypher queries.
-# After each query, call either `consume()` or `data()`
-session.run('CREATE (alice:Person {name: "Alice", age: 22})').consume()
-
-# Get all the vertices from the database (potentially multiple rows).
-vertices = session.run('MATCH (n) RETURN n').data()
-# Assuming we started with an empty database, we should have Alice
-# as the only row in the results.
-only_row = vertices.pop()
-alice = only_row["n"]
-
-# Print out what we retrieved.
-print("Found a vertex with labels '{}', name '{}' and age {}".format(
-  alice['name'], alice.labels, alice['age'])
-
-# Remove all the data from the database.
-session.run('MATCH (n) DETACH DELETE n').consume()
-
-# Close the session and the driver.
-session.close()
-driver.close()
-```
-
-### Java Driver Example
-
-The details about Java driver can be found
-[on GitHub](https://github.com/neo4j/neo4j-java-driver).
-
-The example below is equivalent to Python example. Major difference is that
-`Config` object has to be created before the driver construction.  Encryption
-has to be disabled by calling `withoutEncryption` method against the `Config`
-builder.
-
-```
-import org.neo4j.driver.v1.*;
-import org.neo4j.driver.v1.types.*;
-import static org.neo4j.driver.v1.Values.parameters;
-import java.util.*;
-
-public class JavaQuickStart {
-    public static void main(String[] args) {
-        // Initialize driver.
-        Config config = Config.build().withoutEncryption().toConfig();
-        Driver driver = GraphDatabase.driver("bolt://localhost:7687",
-                                             AuthTokens.basic("",""),
-                                             config);
-        // Execute basic queries.
-        try (Session session = driver.session()) {
-            StatementResult rs1 = session.run("MATCH (n) DETACH DELETE n");
-            StatementResult rs2 = session.run(
-                "CREATE (alice: Person {name: 'Alice', age: 22})");
-            StatementResult rs3 = session.run( "MATCH (n) RETURN n");
-            List<Record> records = rs3.list();
-            Record record = records.get(0);
-            Node node = record.get("n").asNode();
-            System.out.println(node.get("name").asString());
-        } catch (Exception e) {
-            System.out.println(e);
-            System.exit(1);
-        }
-        // Cleanup.
-        driver.close();
-    }
-}
-```
-
-### Javascript Driver Example
-
-The details about Javascript driver can be found
-[on GitHub](https://github.com/neo4j/neo4j-javascript-driver).
-
-The Javascript example below is equivalent to Python and Java examples. SSL
-can be disabled by passing `{encrypted: 'ENCRYPTION_OFF'}` during the driver
-construction.
-
-Here is an example related to `Node.js`. Memgraph doesn't have integrated
-support for `WebSocket` which is required during the execution in any web
-browser. If you want to run `openCypher` queries from a web browser,
-[websockify](https://github.com/novnc/websockify) has to be up and running.
-Requests from web browsers are wrapped into `WebSocket` messages, and a proxy
-is needed to handle the overhead. The proxy has to be configured to point out
-to Memgraph's Bolt port and web browser driver has to send requests to the
-proxy port.
-
-```
-var neo4j = require('neo4j-driver').v1;
-var driver = neo4j.driver("bolt://localhost:7687",
-                          neo4j.auth.basic("neo4j", "1234"),
-                          {encrypted: 'ENCRYPTION_OFF'});
-var session = driver.session();
-
-function die() {
-  session.close();
-  driver.close();
-}
-
-function run_query(query, callback) {
-  var run = session.run(query, {});
-  run.then(callback).catch(function (error) {
-    console.log(error);
-    die();
-  });
-}
-
-run_query("MATCH (n) DETACH DELETE n", function (result) {
-  console.log("Database cleared.");
-  run_query("CREATE (alice: Person {name: 'Alice', age: 22})", function (result) {
-    console.log("Record created.");
-    run_query("MATCH (n) RETURN n", function (result) {
-      console.log("Record matched.");
-      var alice = result.records[0].get("n");
-      console.log(alice.labels[0]);
-      console.log(alice.properties["name"]);
-      session.close();
-      driver.close();
-    });
-  });
-});
-```
-
-### C# Driver Example
-
-The C# driver is hosted
-[on GitHub](https://github.com/neo4j/neo4j-dotnet-driver). The example below
-performs the same work as all of the previous examples. Encryption is disabled
-by setting `EncryptionLevel.NONE` on the `Config`.
-
-```
-using System;
-using System.Linq;
-using Neo4j.Driver.V1;
-
-public class Basic {
-  public static void Main(string[] args) {
-    // Initialize the driver.
-    var config = Config.DefaultConfig;
-    config.EncryptionLevel = EncryptionLevel.None;
-    using(var driver = GraphDatabase.Driver("bolt://localhost:7687", AuthTokens.None, config))
-      using(var session = driver.Session())
-      {
-        // Run basic queries.
-        session.Run("MATCH (n) DETACH DELETE n").Consume();
-        session.Run("CREATE (alice:Person {name: \"Alice\", age: 22})").Consume();
-        var result = session.Run("MATCH (n) RETURN n").First();
-        var alice = (INode) result["n"];
-        Console.WriteLine(alice["name"]);
-        Console.WriteLine(string.Join(", ", alice.Labels));
-        Console.WriteLine(alice["age"]);
-      }
-    Console.WriteLine("All ok!");
-  }
-}
-```
-
-### Limitations
-
-Memgraph is currently in early stage, and has a number of limitations we plan
-to remove in future versions.
-
-#### Multiple Users & Authorization
-
-Memgraph is currently single-user only. There is no way to control user
-privileges. The default user has read and write privileges over the whole
-database.
-
-#### Secure Sockets Layer (SSL)
-
-Secure connections are not supported. For this reason each client
-driver needs to be configured not to use encryption. Consult driver-specific
-guides for details.

docs/user_technical/examples.md

@@ -1,173 +0,0 @@
-## Examples
-
-This chapter shows you how to use Memgraph on real-world data and how to get interesting
-and useful information out of it.
-
-### TED Talks Example
-
-[TED](https://www.ted.com/) is a nonprofit organization devoted to spreading ideas,
-usually in the form of short, powerful talks.
-Today, TED talks are influential videos from expert speakers on almost all
-topics — from science to business to global issues.
-Here we present a small dataset which consists of 97 talks. We'll show you how
-to model this data as a graph and demonstrate a few example queries.
-
-#### Data Model
-Each TED talk has a main speaker, so we
-identify two types of nodes — `Talk` and `Speaker`. Also, we will add
-an edge of type `Gave` pointing to a `Talk` from its main `Speaker`. Each speaker has a name
-so we can add property `name` to `Speaker` node. Likewise, we'll add properties
-`name`, `title` and `description` to node `Talk`.
-Furthermore, each talk is given in a specific TED event, so
-we can create node `Event` with property `name` and relationship `InEvent`
-between talk and event.
-
-Talks are tagged with keywords to facilitate searching, hence we
-add node `Tag` with property `name` and relationship `HasTag` between talk and
-tag. Moreover, users give ratings to each talk
-by selecting up to three predefined string values.
-Therefore we add node `Rating` with these values as property `name` and relationship
-`HasRating` with property `user_count` between talk and rating nodes.
-
-#### Example Queries
-
-We have prepared a database snapshot for this example, so you can easily import it
-when starting Memgraph using the `--durability-directory` option.
-
-```
-/usr/lib/memgraph/memgraph --durability-directory /usr/share/memgraph/examples/TEDTalk \
-  --durability-enabled=false --snapshot-on-exit=false
-```
-
-When using Memgraph installed from DEB package, you may need to stop the
-currently running Memgraph server before you can import the example. Use the
-following command:
-
-```
-systemctl stop memgraph
-```
-
-When using Docker, you can import the example with the following command:
-
-```
-docker run -p 7687:7687 \
-  -v mg_lib:/var/lib/memgraph -v mg_log:/var/log/memgraph -v mg_etc:/etc/memgraph \
-  memgraph --durability-directory /usr/share/memgraph/examples/TEDTalk \
-  --durability-enabled=false --snapshot-on-exit=false
-```
-
-Now you're ready to try out some of the following queries.
-
-NOTE: If you modify the dataset, the changes will stay only during this run of
-Memgraph.
-
-1) Find all talks given by specific speaker:
-```
-MATCH (n:Speaker {name: "Hans Rosling"})-[:Gave]->(m:Talk)
-RETURN m.title;
-```
-
-
-2) Find the top 20 speakers with most talks given:
-
-```
-MATCH (n:Speaker)-[:Gave]->(m)
-RETURN n.name, COUNT(m) as TalksGiven
-ORDER BY TalksGiven DESC LIMIT 20;
-```
-
-3) Find talks related by tag to specific talk and count them:
-```
-MATCH (n:Talk {name: "Michael Green: Why we should build wooden skyscrapers"})-[:HasTag]->(t:Tag)<-[:HasTag]-(m:Talk)
-WITH * ORDER BY m.name
-RETURN t.name, COLLECT(m.name), COUNT(m) AS TalksCount
-ORDER BY TalksCount DESC;
-```
-
-4) Find 20 most frequently used tags:
-```
-MATCH (t:Tag)<-[:HasTag]-(n:Talk)
-RETURN t.name as Tag, COUNT(n) AS TalksCount
-ORDER BY TalksCount DESC, Tag LIMIT 20;
-```
-
-5) Find 20 talks most rated as "Funny". If you want to query by other ratings,
-possible values are: Obnoxious, Jaw-dropping, OK, Persuasive, Beautiful, Confusing,
-Longwinded, Unconvincing, Fascinating, Ingenious, Courageous, Funny, Informative and
-Inspiring.
-```
-MATCH (r:Rating{name:"Funny"})<-[e:HasRating]-(m:Talk)
-RETURN m.name, e.user_count ORDER BY e.user_count DESC LIMIT 20;
-```
-
-6) Find inspiring talks and their speakers from the field of technology:
-```
-MATCH (n:Talk)-[:HasTag]->(m:Tag {name: "technology"})
-MATCH (n)-[r:HasRating]->(p:Rating {name: "Inspiring"})
-MATCH (n)<-[:Gave]-(s:Speaker)
-WHERE r.user_count > 1000
-RETURN n.title, s.name, r.user_count ORDER BY r.user_count DESC;
-```
-
-7) Now let's see one real-world example &mdash; how to make a real-time recommendation.
-If you've just watched a talk from a certain speaker(e.g. Hans Rosling) you might be
-interested in finding more talks from the same speaker on a similar topic:
-
-```
-MATCH (n:Speaker {name: "Hans Rosling"})-[:Gave]->(m:Talk)
-MATCH (t:Talk {title: "New insights on poverty"})-[:HasTag]->(tag:Tag)<-[:HasTag]-(m)
-WITH * ORDER BY tag.name
-RETURN m.title as Title, COLLECT(tag.name), COUNT(tag) as TagCount
-ORDER BY TagCount DESC, Title;
-```
-
-The following few queries are focused on extracting information about TED events.
-
-8) Find how many talks were given per event:
-```
-MATCH (n:Event)<-[:InEvent]-(t:Talk)
-RETURN n.name as Event, COUNT(t) AS TalksCount
-ORDER BY TalksCount DESC, Event
-LIMIT 20;
-```
-
-9) Find the most popular tags in the specific event:
-```
-MATCH (n:Event {name:"TED2006"})<-[:InEvent]-(t:Talk)-[:HasTag]->(tag:Tag)
-RETURN tag.name as Tag, COUNT(t) AS TalksCount
-ORDER BY TalksCount DESC, Tag
-LIMIT 20;
-```
-
-10) Discover which speakers participated in more than 2 events:
-```
-MATCH (n:Speaker)-[:Gave]->(t:Talk)-[:InEvent]->(e:Event)
-WITH n, COUNT(e) AS EventsCount WHERE EventsCount > 2
-RETURN n.name as Speaker, EventsCount
-ORDER BY EventsCount DESC, Speaker;
-```
-
-11) For each speaker search for other speakers that participated in same events:
-```
-MATCH (n:Speaker)-[:Gave]->()-[:InEvent]->(e:Event)<-[:InEvent]-()<-[:Gave]-(m:Speaker)
-WHERE n.name != m.name
-WITH DISTINCT n, m ORDER BY m.name
-RETURN n.name AS Speaker, COLLECT(m.name) AS Others
-ORDER BY Speaker;
-```
-
-Now you're ready to explore the world of graph databases with Memgraph
-by yourself and try it on many more examples and datasets.
-
-### Graph Gists Examples
-
-A nice looking set of small graph examples can be found
-[here](https://neo4j.com/graphgists/).  You can take any use-case and try to
-execute the queries against Memgraph. To clear the database between trying out
-examples, execute the query:
-
-```
-MATCH (n) DETACH DELETE n;
-```
-
-

docs/user_technical/import-tools.md

@@ -1,118 +0,0 @@
-## Import Tools
-
-Memgraph comes with tools for importing data into the database. Currently,
-only import of CSV formatted is supported. We plan to support more formats in
-the future.
-
-### CSV Import Tool
-
-CSV data should be in Neo4j CSV compatible format. Detailed format
-specification can be found
-[here](https://neo4j.com/docs/operations-manual/current/tools/import/file-header-format/).
-
-The import tool is run from the console, using the `mg_import_csv` command.
-
-If you installed Memgraph using Docker, you will need to run the importer
-using the following command:
-
-```
-docker run -v mg_lib:/var/lib/memgraph -v mg_etc:/etc/memgraph -v mg_import:/import-data \
-  --entrypoint=mg_import_csv memgraph
-```
-
-You can pass CSV files containing node data using the `--nodes` option.
-Multiple files can be specified by repeating the `--nodes` option.  At least
-one node file should be specified. Similarly, graph edges (also known as
-relationships) are passed via the `--relationships` option.  Multiple
-relationship files are imported by repeating the option. Unlike nodes,
-relationships are not required.
-
-After reading the CSV files, the tool will by default search for the installed
-Memgraph configuration. If the configuration is found, the data will be
-written in the configured durability directory. If the configuration isn't
-found, you will need to use the `--out` option to specify the output file. You
-can use the same option to override the default behaviour.
-
-Memgraph will recover the imported data on the next startup by looking in the
-durability directory.
-
-For information on other options, run:
-
-```
-mg_import_csv --help
-```
-
-When using Docker, this translates to:
-
-```
-docker run --entrypoint=mg_import_csv memgraph --help
-```
-
-#### Example
-
-Let's import a simple dataset.
-
-Store the following in `comment_nodes.csv`.
-
-```
-id:ID(COMMENT_ID),country:string,browser:string,content:string,:LABEL
-0,Croatia,Chrome,yes,Message;Comment
-1,United Kingdom,Chrome,thanks,Message;Comment
-2,Germany,,LOL,Message;Comment
-3,France,Firefox,I see,Message;Comment
-4,Italy,Internet Explorer,fine,Message;Comment
-```
-
-Now, let's add `forum_nodes.csv`.
-
-```
-id:ID(FORUM_ID),title:string,:LABEL
-0,General,Forum
-1,Support,Forum
-2,Music,Forum
-3,Film,Forum
-4,Programming,Forum
-```
-
-And finally, set relationships between comments and forums in
-`relationships.csv`.
-
-```
-:START_ID(COMMENT_ID),:END_ID(FORUM_ID),:TYPE
-0,0,POSTED_ON
-1,1,POSTED_ON
-2,2,POSTED_ON
-3,3,POSTED_ON
-4,4,POSTED_ON
-```
-
-Now, you can import the dataset in Memgraph.
-
-WARNING: Your existing recovery data will be considered obsolete, and Memgraph
-will load the new dataset.
-
-Use the following command:
-
-```
-mg_import_csv --nodes=comment_nodes.csv --nodes=forum_nodes.csv --relationships=relationships.csv
-```
-
-If using Docker, things are a bit more complicated. First you need to move the
-CSV files where the Docker image can see them:
-
-```
-mkdir -p /var/lib/docker/volumes/mg_import/_data
-cp comment_nodes.csv forum_nodes.csv relationships.csv /var/lib/docker/volumes/mg_import/_data
-```
-
-Then, run the importer with the following:
-
-```
-docker run -v mg_lib:/var/lib/memgraph -v mg_etc:/etc/memgraph -v mg_import:/import-data \
-  --entrypoint=mg_import_csv memgraph \
-  --nodes=/import-data/comment_nodes.csv --nodes=/import-data/forum_nodes.csv \
-  --relationships=/import-data/relationships.csv
-```
-
-Next time you run Memgraph, the dataset will be loaded.
-

docs/user_technical/open-cypher.md

@@ -1,733 +0,0 @@
-## openCypher Query Language
-
-[*openCypher*](http://www.opencypher.org/) is a query language for querying
-graph databases. It aims to be intuitive and easy to learn, while
-providing a powerful interface for working with graph based data.
-
-*Memgraph* supports most of the commonly used constructs of the language. This
-chapter contains the details of implemented features. Additionally,
-not yet supported features of the language are listed.
-
-  * [Reading Existing Data](#reading-existing-data)
-  * [Writing New Data](#writing-new-data)
-  * [Reading & Writing](#reading-amp-writing)
-  * [Indexing](#indexing)
-  * [Other Features](#other-features)
-
-### Reading Existing Data
-
-The simplest usage of the language is to find data stored in the
-database. For that purpose, the following clauses are offered:
-
-  * `MATCH`, which searches for patterns;
-  * `WHERE`, for filtering the matched data and
-  * `RETURN`, for defining what will be presented to the user in the result
-    set.
-  * `UNION` and `UNION ALL` for combining results from multiple queries.
-
-#### MATCH
-
-This clause is used to obtain data from Memgraph by matching it to a given
-pattern. For example, to find each node in the database, you can use the
-following query.
-
-    MATCH (node) RETURN node
-
-Finding connected nodes can be achieved by using the query:
-
-    MATCH (node1)-[connection]-(node2) RETURN node1, connection, node2
-
-In addition to general pattern matching, you can narrow the search down by
-specifying node labels and properties. Similarly, edge types and properties
-can also be specified. For example, finding each node labeled as `Person` and
-with property `age` being 42, is done with the following query.
-
-    MATCH (n :Person {age: 42}) RETURN n
-
-While their friends can be found with the following.
-
-    MATCH (n :Person {age: 42})-[:FriendOf]-(friend) RETURN friend
-
-There are cases when a user needs to find data which is connected by
-traversing a path of connections, but the user doesn't know how many
-connections need to be traversed. openCypher allows for designating patterns
-with *variable path lengths*. Matching such a path is achieved by using the
-`*` (*asterisk*) symbol inside the edge element of a pattern. For example,
-traversing from `node1` to `node2` by following any number of connections in a
-single direction can be achieved with:
-
-    MATCH (node1)-[r*]->(node2) RETURN node1, r, node2
-
-If paths are very long, finding them could take a long time. To prevent that,
-a user can provide the minimum and maximum length of the path. For example,
-paths of length between 2 and 4 can be obtained with a query like:
-
-    MATCH (node1)-[r*2..4]->(node2) RETURN node1, r, node2
-
-It is possible to name patterns in the query and return the resulting paths.
-This is especially useful when matching variable length paths:
-
-    MATCH path = ()-[r*2..4]->() RETURN path
-
-More details on how `MATCH` works can be found
-[here](https://neo4j.com/docs/developer-manual/current/cypher/clauses/match/).
-
-The `MATCH` clause can be modified by prepending the `OPTIONAL` keyword.
-`OPTIONAL MATCH` clause behaves the same as a regular `MATCH`, but when it
-fails to find the pattern, missing parts of the pattern will be filled with
-`null` values. Examples can be found
-[here](https://neo4j.com/docs/developer-manual/current/cypher/clauses/optional-match/).
-
-#### WHERE
-
-You have already seen that simple filtering can be achieved by using labels
-and properties in `MATCH` patterns. When more complex filtering is desired,
-you can use `WHERE` paired with `MATCH` or `OPTIONAL MATCH`. For example,
-finding each person older than 20 is done with the this query.
-
-    MATCH (n :Person) WHERE n.age > 20 RETURN n
-
-Additional examples can be found
-[here](https://neo4j.com/docs/developer-manual/current/cypher/clauses/where/).
-
-#### RETURN
-
-The `RETURN` clause defines which data should be included in the resulting
-set. Basic usage was already shown in the examples for `MATCH` and `WHERE`
-clauses. Another feature of `RETURN` is renaming the results using the `AS`
-keyword.
-
-Example.
-
-    MATCH (n :Person) RETURN n AS people
-
-That query would display all nodes under the header named `people` instead of
-`n`.
-
-When you want to get everything that was matched, you can use the `*`
-(*asterisk*) symbol.
-
-This query:
-
-    MATCH (node1)-[connection]-(node2) RETURN *
-
-is equivalent to:
-
-    MATCH (node1)-[connection]-(node2) RETURN node1, connection, node2
-
-`RETURN` can be followed by the `DISTINCT` operator, which will remove
-duplicate results. For example, getting unique names of people can be achieved
-with:
-
-    MATCH (n :Person) RETURN DISTINCT n.name
-
-Besides choosing what will be the result and how it will be named, the
-`RETURN` clause can also be used to:
-
-  * limit results with `LIMIT` sub-clause;
-  * skip results with `SKIP` sub-clause;
-  * order results with `ORDER BY` sub-clause and
-  * perform aggregations (such as `count`).
-
-More details on `RETURN` can be found
-[here](https://neo4j.com/docs/developer-manual/current/cypher/clauses/return/).
-
-##### SKIP & LIMIT
-
-These sub-clauses take a number of how many results to skip or limit.
-For example, to get the first 3 results you can use this query.
-
-    MATCH (n :Person) RETURN n LIMIT 3
-
-If you want to get all the results after the first 3, you can use the
-following.
-
-    MATCH (n :Person) RETURN n SKIP 3
-
-The `SKIP` and `LIMIT` can be combined. So for example, to get the 2nd result,
-you can do:
-
-    MATCH (n :Person) RETURN n SKIP 1 LIMIT 1
-
-##### ORDER BY
-
-Since the patterns which are matched can come in any order, it is very useful
-to be able to enforce some ordering among the results. In such cases, you can
-use the `ORDER BY` sub-clause.
-
-For example, the following query will get all `:Person` nodes and order them
-by their names.
-
-    MATCH (n :Person) RETURN n ORDER BY n.name
-
-By default, ordering will be in the ascending order. To change the order to be
-descending, you should append `DESC`.
-
-For example, to order people by their name descending, you can use this query.
-
-    MATCH (n :Person) RETURN n ORDER BY n.name DESC
-
-You can also order by multiple variables. The results will be sorted by the
-first variable listed. If the values are equal, the results are sorted by the
-second variable, and so on.
-
-Example. Ordering by first name descending and last name ascending.
-
-    MATCH (n :Person) RETURN n ORDER BY n.name DESC, n.lastName
-
-Note that `ORDER BY` sees only the variable names as carried over by `RETURN`.
-This means that the following will result in an error.
-
-    MATCH (n :Person) RETURN old AS new ORDER BY old.name
-
-Instead, the `new` variable must be used:
-
-    MATCH (n: Person) RETURN old AS new ORDER BY new.name
-
-The `ORDER BY` sub-clause may come in handy with `SKIP` and/or `LIMIT`
-sub-clauses. For example, to get the oldest person you can use the following.
-
-    MATCH (n :Person) RETURN n ORDER BY n.age DESC LIMIT 1
-
-##### Aggregating
-
-openCypher has functions for aggregating data. Memgraph currently supports
-the following aggregating functions.
-
-  * `avg`, for calculating the average.
-  * `collect`, for collecting multiple values into a single list or map. If given a single expression values are collected into a list. If given two expressions, values are collected into a map where the first expression denotes map keys (must be string values) and the second expression denotes map values.
-  * `count`, for counting the resulting values.
-  * `max`, for calculating the maximum result.
-  * `min`, for calculating the minimum result.
-  * `sum`, for getting the sum of numeric results.
-
-Example, calculating the average age:
-
-    MATCH (n :Person) RETURN avg(n.age) AS averageAge
-
-Collecting items into a list:
-
-    MATCH (n :Person) RETURN collect(n.name) AS list_of_names
-
-Collecting items into a map:
-
-    MATCH (n :Person) RETURN collect(n.name, n.age) AS map_name_to_age
-
-Click
-[here](https://neo4j.com/docs/developer-manual/current/cypher/functions/aggregating/)
-for additional details on how aggregations work.
-
-#### UNION and UNION ALL
-
-openCypher supports combining results from multiple queries into a single result
-set. That result will contain rows that belong to queries in the union
-respecting the union type.
-
-Using `UNION` will contain only distinct rows while `UNION ALL` will keep all
-rows from all given queries.
-
-Restrictions when using `UNION` or `UNION ALL`:
-  * The number and the names of columns returned by queries must be the same
-    for all of them.
-  * There can be only one union type between single queries, ie. a query can't
-    contain both `UNION` and `UNION ALL`.
-
-Example, get distinct names that are shared between persons and movies:
-
-    MATCH(n: Person) RETURN n.name as name UNION MATCH(n: Movie) RETURN n.name as name
-
-Example, get all names that are shared between persons and movies (including duplicates):
-
-    MATCH(n: Person) RETURN n.name as name UNION ALL MATCH(n: Movie) RETURN n.name as name
-
-### Writing New Data
-
-For adding new data, you can use the following clauses.
-
-  * `CREATE`, for creating new nodes and edges.
-  * `SET`, for adding new or updating existing labels and properties.
-  * `DELETE`, for deleting nodes and edges.
-  * `REMOVE`, for removing labels and properties.
-
-You can still use the `RETURN` clause to produce results after writing, but it
-is not mandatory.
-
-Details on which kind of data can be stored in *Memgraph* can be found in
-**Storable Data Types** chapter.
-
-#### CREATE
-
-This clause is used to add new nodes and edges to the database. The creation
-is done by providing a pattern, similarly to `MATCH` clause.
-
-For example, to create 2 new nodes connected with a new edge, use this query.
-
-    CREATE (node1)-[:edge_type]->(node2)
-
-Labels and properties can be set during creation using the same syntax as in
-[MATCH](#match) patterns. For example, creating a node with a label and a
-property:
-
-    CREATE (node :Label {property: "my property value"}
-
-Additional information on `CREATE` is
-[here](https://neo4j.com/docs/developer-manual/current/cypher/clauses/create/).
-
-#### SET
-
-The `SET` clause is used to update labels and properties of already existing
-data.
-
-Example. Incrementing everyone's age by 1.
-
-    MATCH (n :Person) SET n.age = n.age + 1
-
-Click
-[here](https://neo4j.com/docs/developer-manual/current/cypher/clauses/create/)
-for a more detailed explanation on what can be done with `SET`.
-
-#### DELETE
-
-This clause is used to delete nodes and edges from the database.
-
-Example. Removing all edges of a single type.
-
-    MATCH ()-[edge :type]-() DELETE edge
-
-When testing the database, you want to often have a clean start by deleting
-every node and edge in the database. It is reasonable that deleting each node
-should delete all edges coming into or out of that node.
-
-    MATCH (node) DELETE node
-
-But, openCypher prevents accidental deletion of edges. Therefore, the above
-query will report an error. Instead, you need to use the `DETACH` keyword,
-which will remove edges from a node you are deleting. The following should
-work and *delete everything* in the database.
-
-    MATCH (node) DETACH DELETE node
-
-More examples are
-[here](https://neo4j.com/docs/developer-manual/current/cypher/clauses/delete/).
-
-#### REMOVE
-
-The `REMOVE` clause is used to remove labels and properties from nodes and
-edges.
-
-Example.
-
-    MATCH (n :WrongLabel) REMOVE n :WrongLabel, n.property
-
-### Reading & Writing
-
-OpenCypher supports combining multiple reads and writes using the
-`WITH` clause. In addition to combining, the `MERGE` clause is provided which
-may create patterns if they do not exist.
-
-#### WITH
-
-The write part of the query cannot be simply followed by another read part. In
-order to combine them, `WITH` clause must be used. The names this clause
-establishes are transferred from one part to another.
-
-For example, creating a node and finding all nodes with the same property.
-
-    CREATE (node {property: 42}) WITH node.property AS propValue
-    MATCH (n {property: propValue}) RETURN n
-
-Note that the `node` is not visible after `WITH`, since only `node.property`
-was carried over.
-
-This clause behaves very much like `RETURN`, so you should refer to features
-of `RETURN`.
-
-#### MERGE
-
-The `MERGE` clause is used to ensure that a pattern you are looking for exists
-in the database. This means that if the pattern is not found, it will be
-created. In a way, this clause is like a combination of `MATCH` and `CREATE`.
-
-
-Example. Ensure that a person has at least one friend.
-
-    MATCH (n :Person) MERGE (n)-[:FriendOf]->(m)
-
-The clause also provides additional features for updating the values depending
-on whether the pattern was created or matched. This is achieved with `ON
-CREATE` and `ON MATCH` sub clauses.
-
-Example. Set a different properties depending on what `MERGE` did.
-
-    MATCH (n :Person) MERGE (n)-[:FriendOf]->(m)
-    ON CREATE SET m.prop = "created" ON MATCH SET m.prop = "existed"
-
-For more details, click [this
-link](https://neo4j.com/docs/developer-manual/current/cypher/clauses/merge/).
-
-### Indexing
-
-An index stores additional information on certain types of data, so that
-retrieving said data becomes more efficient. Downsides of indexing are:
-
-  * requiring extra storage for each index and
-  * slowing down writes to the database.
-
-Carefully choosing which data to index can tremendously improve data retrieval
-efficiency, and thus make index downsides negligible.
-
-Memgraph automatically indexes labeled data. This improves queries
-which fetch nodes by label:
-
-    MATCH (n :Label) ... RETURN n
-
-Indexing can also be applied to data with a specific combination of label and
-property. These are not automatically created, instead a user needs to create
-them explicitly. Creation is done using a special
-`CREATE INDEX ON :Label(property)` language construct.
-
-For example, to index nodes which is labeled as `:Person` and has a property
-named `age`:
-
-    CREATE INDEX ON :Person(age)
-
-After the index is created, retrieving those nodes will become more efficient.
-For example, the following query will retrieve all nodes which have an `age`
-property, instead of fetching each `:Person` node and checking whether the
-property exists.
-
-    MATCH (n :Person {age: 42}) RETURN n
-
-Using index based retrieval also works when filtering labels and properties
-with `WHERE`. For example, the same effect as in the previous example can be
-done with:
-
-    MATCH (n) WHERE n:Person AND n.age = 42 RETURN n
-
-Since the filter inside `WHERE` can contain any kind of an expression, the
-expression can be complicated enough so that the index does not get used. We
-are continuously improving the recognition of index usage opportunities from a
-`WHERE` expression. If there is any suspicion that an index may not be used,
-we recommend putting properties and labels inside the `MATCH` pattern.
-
-Currently, once an index is created it cannot be deleted. This feature will be
-implemented very soon. The expected syntax for removing an index will be `DROP
-INDEX ON :Label(property)`.
-
-### Other Features
-
-The following sections describe some of the other supported features.
-
-#### Filtering Variable Length Paths
-
-OpenCypher supports only simple filtering when matching variable length paths.
-For example:
-
-    MATCH (n)-[r:Type * {x: 42}]-(m)
-
-This will produce only those paths whose edges have the required `Type` and `x`
-property value.
-
-Memgraph extends openCypher with a syntax for arbitrary filter expressions
-during path matching. The next example filters edges which have property `x`
-between `0` and `10`.
-
-    MATCH (n)-[r * (edge, node | 0 < edge.x < 10)]-(m)
-
-Here we introduce a lambda function with parentheses, where the first two
-arguments, `edge` and `node`, correspond to each edge and node during path
-matching. `node` is the destination node we are moving to across the current
-`edge`. The last `node` value will be the same value as `m`. Following the
-pipe (`|`) character is an arbitrary expression which must produce a boolean
-value.  If `True`, matching continues, otherwise the path is discarded.
-
-The previous example can be written using the `all` function:
-
-    MATCH (n)-[r *]-(m) WHERE all(edge IN r WHERE 0 < edge.x < 10)
-
-However, filtering using a lambda function is more efficient because paths
-may be discarded earlier in the traversal. Furthermore, it provides more
-flexibility for deciding what kind of paths are matched due to more expressive
-filtering capabilities. Therefore, filtering through lambda functions should
-be preferred whenever possible.
-
-#### Breadth First Search
-
-A typical graph use-case is searching for the shortest path between nodes.
-The openCypher standard does not define this feature, so Memgraph provides
-a custom implementation, based on the edge expansion syntax.
-
-Finding the shortest path between nodes can be done using breadth-first
-expansion:
-
-    MATCH (a {id: 723})-[r:Type *bfs..10]-(b {id: 882}) RETURN *
-
-The above query will find all paths of length up to 10 between nodes `a` and `b`.
-The edge type and maximum path length are used in the same way like in variable
-length expansion.
-
-To find only the shortest path, simply append `LIMIT 1` to the `RETURN` clause.
-
-    MATCH (a {id: 723})-[r:Type *bfs..10]-(b {id: 882}) RETURN * LIMIT 1
-
-Breadth-first expansion allows an arbitrary expression filter that determines
-if an expansion is allowed. Following is an example in which expansion is
-allowed only over edges whose `x` property is greater than `12` and nodes `y`
-whose property is less than `3`:
-
-    MATCH (a {id: 723})-[*bfs..10 (e, n | e.x > 12 and n.y < 3)]-() RETURN *
-
-The filter is defined as a lambda function over `e` and `n`, which denote the edge
-and node being expanded over in the breadth first search.
-
-There are a few benefits of the breadth-first expansion approach, as opposed to
-a specialized `shortestPath` function. For one, it is possible to inject
-expressions that filter on nodes and edges along the path itself, not just the final
-destination node. Furthermore, it's possible to find multiple paths to multiple destination
-nodes regardless of their length. Also, it is possible to simply go through a node's
-neighbourhood in breadth-first manner.
-
-Currently, it isn't possible to get all shortest paths to a single node using
-Memgraph's breadth-first expansion.
-
-#### Weighted Shortest Path
-
-Another standard use-case in a graph is searching for the weighted shortest
-path between nodes. The openCypher standard does not define this feature, so
-Memgraph provides a custom implementation, based on the edge expansion syntax.
-
-Finding the weighted shortest path between nodes is done using the weighted
-shortest path expansion:
-
-    MATCH (a {id: 723})-[le *wShortest 10 (e, n | e.weight) total_weight]-(b {id: 882}) RETURN *
-
-The above query will find the shortest path of length up to 10 nodes between
-nodes `a`  and `b`.
-
-Weighted Shortest Path expansion allows an arbitrary expression that determines
-the weight for the current expansion. Total weight of a path is calculated as
-the sum of all weights on the path between two nodes. Following is an example in
-which the weight between nodes is defined as the product of edge weights
-(instead of sum), assuming all weights are greater than '1':
-
-    MATCH (a {id: 723})-[le *wShortest 10 (e, n | log(e.weight)) total_weight]-(b {id: 882}) RETURN exp(total_weight)
-
-
-Weighted Shortest Path expansions also allows an arbitrary expression filter
-that determines if an expansion is allowed. Following is an example in which
-expansion is allowed only over edges whose `x` property is greater than `12`
-and nodes `y` whose property is less than `3`:
-
-    MATCH (a {id: 723})-[le *wShortest 10 (e, n | e.weight) total_weight (e, n | e.x > 12 and n.y < 3)]-(b {id: 882}) RETURN exp(total_weight)
-
-Both weight and filter expression are defined as lambda functions over `e` and
-`n`, which denote the edge and the node being expanded over in the weighted
-shortest path search.
-
-#### UNWIND
-
-The `UNWIND` clause is used to unwind a list of values as individual rows.
-
-Example. Produce rows out of a single list.
-
-    UNWIND [1,2,3] AS listElement RETURN listElement
-
-More examples are
-[here](https://neo4j.com/docs/developer-manual/current/cypher/clauses/unwind/).
-
-#### Functions
-
-You have already been introduced to one type of functions, [aggregating
-functions](#aggregating). This section contains the list of other supported
-functions.
-
- Name            | Description
------------------|------------
- `coalesce`      | Returns the first non null argument.
- `startNode`     | Returns the starting node of an edge.
- `endNode`       | Returns the destination node of an edge.
- `degree`        | Returns the number of edges (both incoming and outgoing) of a node.
- `head`          | Returns the first element of a list.
- `last`          | Returns the last element of a list.
- `properties`    | Returns the properties of a node or an edge.
- `size`          | Returns the number of elements in a list or a map. When given a string it returns the number of characters. When given a path it returns the number of expansions (edges) in that path.
- `toBoolean`     | Converts the argument to a boolean.
- `toFloat`       | Converts the argument to a floating point number.
- `toInteger`     | Converts the argument to an integer.
- `type`          | Returns the type of an edge as a character string.
- `keys`          | Returns a list keys of properties from an edge or a node. Each key is represented as a string of characters.
- `labels`        | Returns a list of labels from a node. Each label is represented as a character string.
- `nodes`         | Returns a list of nodes from a path.
- `relationships` | Returns a list of relationships from a path.
- `range`         | Constructs a list of value in given range.
- `tail`          | Returns all elements after the first of a given list.
- `abs`           | Returns the absolute value of a number.
- `ceil`          | Returns the smallest integer greater than or equal to given number.
- `floor`         | Returns the largest integer smaller than or equal to given number.
- `round`         | Returns the number, rounded to the nearest integer. Tie-breaking is done using the *commercial rounding*,  where -1.5 produces -2 and 1.5 produces 2.
- `exp`           | Calculates `e^n` where `e` is the base of the natural logarithm, and `n` is the given number.
- `log`           | Calculates the natural logarithm of a given number.
- `log10`         | Calculates the logarithm (base 10) of a given number.
- `sqrt`          | Calculates the square root of a given number.
- `acos`          | Calculates the arccosine of a given number.
- `asin`          | Calculates the arcsine of a given number.
- `atan`          | Calculates the arctangent of a given number.
- `atan2`         | Calculates the arctangent2 of a given number.
- `cos`           | Calculates the cosine of a given number.
- `sin`           | Calculates the sine of a given number.
- `tan`           | Calculates the tangent of a given number.
- `sign`          | Applies the signum function to a given number and returns the result. The signum of positive numbers is 1, of negative -1 and for 0 returns 0.
- `e`             | Returns the base of the natural logarithm.
- `pi`            | Returns the constant *pi*.
- `rand`          | Returns a random floating point number between 0 (inclusive) and 1 (exclusive).
- `startsWith`    | Check if the first argument starts with the second.
- `endsWith`      | Check if the first argument ends with the second.
- `contains`      | Check if the first argument has an element which is equal to the second argument.
- `all`           | Check if all elements of a list satisfy a predicate.<br/>The syntax is: `all(variable IN list WHERE predicate)`.<br/> NOTE: Whenever possible, use Memgraph's lambda functions when [matching](#filtering-variable-length-paths) instead.
- `single`        | Check if only one element of a list satisfies a predicate.<br/>The syntax is: `single(variable IN list WHERE predicate)`.
- `reduce`        | Accumulate list elements into a single result by applying an expression. The syntax is:<br/>`reduce(accumulator = initial_value, variable IN list | expression)`.
- `assert`        | Raises an exception reported to the client if the given argument is not `true`.
- `counter`       | Generates integers that are guaranteed to be unique on the database level, for the given counter name.
- `counterSet`    | Sets the counter with the given name to the given value.
- `indexInfo`     | Returns a list of all the indexes available in the database. The list includes indexes that are not yet ready for use (they are concurrently being built by another transaction).
-
-#### String Operators
-
-Apart from comparison and concatenation operators openCypher provides special
-string operators for easier matching of substrings:
-
-Operator           | Description
--------------------|------------
- `a STARTS WITH b` | Returns true if prefix of string a is equal to string b.
- `a ENDS WITH b`   | Returns true if suffix of string a is equal to string b.
- `a CONTAINS b`    | Returns true if some substring of string a is equal to string b.
-
-#### Parameters
-
-When automating the queries for Memgraph, it comes in handy to change only
-some parts of the query. Usually, these parts are values which are used for
-filtering results or similar, while the rest of the query remains the same.
-
-Parameters allow reusing the same query, but with different parameter values.
-The syntax uses the `$` symbol to designate a parameter name. We don't allow
-old Cypher parameter syntax using curly braces. For example, you can parameterize
-filtering a node property:
-
-    MATCH (node1 {property: $propertyValue}) RETURN node1
-
-You can use parameters instead of any literal in the query, but not instead of
-property maps even though that is allowed in standard openCypher. Following
-example is illegal in Memgraph:
-
-    MATCH (node1 $propertyValue) RETURN node1
-
-To use parameters with Python driver use following syntax:
-
-    session.run('CREATE (alice:Person {name: $name, age: $ageValue}',
-                name='Alice', ageValue=22)).consume()
-
-To use parameters which names are integers you will need to wrap parameters in
-a dictionary and convert them to strings before running a query:
-
-    session.run('CREATE (alice:Person {name: $0, age: $1}',
-                {'0': "Alice", '1': 22})).consume()
-
-To use parameters with some other driver please consult appropriate
-documentation.
-
-#### CASE
-
-Conditional expressions can be expressed in openCypher language by simple and
-generic form of `CASE` expression. A simple form is used to compare an expression
-against multiple predicates. For the first matched predicate result of the
-expression provided after the `THEN` keyword is returned.  If no expression is
-matched value following `ELSE` is returned is provided, or `null` if `ELSE` is not
-used:
-
-    MATCH (n)
-    RETURN CASE n.currency WHEN "DOLLAR" THEN "$" WHEN "EURO" THEN "€" ELSE "UNKNOWN" END
-
-In generic form, you don't need to provide an expression whose value is compared to
-predicates, but you can list multiple predicates and the first one that evaluates
-to true is matched:
-
-    MATCH (n)
-    RETURN CASE WHEN n.height < 30 THEN "short" WHEN n.height > 300 THEN "tall" END
-
-### Differences
-
-Although we try to implement openCypher query language as closely to the
-language reference as possible, we had to make some changes to enhance the
-user experience.
-
-#### Symbolic Names
-
-We don't allow symbolic names (variables, label names...) to be openCypher
-keywords (WHERE, MATCH, COUNT, SUM...).
-
-#### Unicode Codepoints in String Literal
-
-Use `\u` followed by 4 hex digits in string literal for UTF-16 codepoint and
-`\U` with 8 hex digits for UTF-32 codepoint in Memgraph.
-
-
-### Difference from Neo4j's Cypher Implementation
-
-The openCypher initiative stems from Neo4j's Cypher query language. Following is a list
-of most important differences between Neo's Cypher and Memgraph's openCypher implementation,
-for users that are already familiar with Neo4j. There might be other differences not documented
-here (especially subtle semantic ones).
-
-#### Unsupported Constructs
-
-* Data importing. Memgraph doesn't support Cypher's CSV importing capabilities.
-* The `FOREACH` language construct for performing an operation on every list element.
-* The `CALL` construct for a standalone function call. This can be expressed using
-  `RETURN functioncall()`. For example, with Memgraph you can get information about
-  the indexes present in the database using the `RETURN indexinfo()` openCypher query.
-* Stored procedures.
-* Regular expressions for string matching.
-* `shortestPath` and `allShortestPaths` functions. `shortestPath` can be expressed using
-  Memgraph's breadth-first expansion syntax already described in this document.
-* Patterns in expressions. For example, Memgraph doesn't support `size((n)-->())`. Most of the time
-  the same functionalities can be expressed differently in Memgraph using `OPTIONAL` expansions,
-  function calls etc.
-* Map projections such as `MATCH (n) RETURN n {.property1, .property2}`.
-
-#### Unsupported Functions
-
-General purpose functions:
-* `id()` - Memgraph does not expose a public unique node identifier.
-* `exists(n.property)` - This can be expressed using `n.property IS NOT NULL`.
-* `length()` is named `size()` in Memgraph.
-
-Path functions:
-* `extract()`
-
-Aggregation functions:
-* `count(DISTINCT variable)` - This can be expressed using `WITH DISTINCT variable RETURN count(variable)`.
-
-Mathematical functions:
-* `percentileDisc()`
-* `stDev()`
-* `point()`
-* `distance()`
-* `degrees()`
-
-String functions:
-* `replace()`
-* `substring()`
-* `left()`
-* `trim()`
-* `toupper()`
-* `tolower()`
-* `split()`
-* `reverse()`
-
-List functions:
-* `any()`
-* `none()`
-* `single()`
-* `head()`
-* `last()`
-* `tail()`

docs/user_technical/quick-start.md

@@ -1,148 +0,0 @@
-## Quick Start
-
-This chapter outlines installing and running Memgraph, as well as executing
-basic queries against the database.
-
-### Installation
-
-The Memgraph binary is offered as:
-
-  * Debian package for Debian 9 (Stretch) and
-  * Docker image.
-
-After downloading the binary, proceed to the corresponding section below.
-
-#### Docker Installation
-
-Before proceeding with the installation, please install the Docker engine on
-the system. Instructions on how to install Docker can be found on the
-[official Docker website](https://docs.docker.com/engine/installation).
-Memgraph Docker image was built with Docker version `1.12` and should be
-compatible with all later versions.
-
-After installing and running Docker, download the Memgraph Docker image and
-import it with the following command.
-
-```
-docker load -i /path/to/memgraph-<version>-docker.tar.gz
-```
-
-Memgraph is then started with another docker command.
-
-```
-docker run -p 7687:7687 \
-  -v mg_lib:/var/lib/memgraph -v mg_log:/var/log/memgraph -v mg_etc:/etc/memgraph \
-  memgraph
-```
-
-On success, expect to see output similar to the following.
-
-```
-Starting 8 workers
-Server is fully armed and operational
-Listening on 0.0.0.0 at 7687
-```
-
-Memgraph is now ready to process queries, you may now proceed to
-[querying](#querying). To stop Memgraph, press `Ctrl-c`.
-
-Memgraph configuration is available in Docker's named volume `mg_etc`. On
-Linux systems it should be in
-`/var/lib/docker/volumes/mg_etc/_data/memgraph.conf`. After changing the
-configuration, Memgraph needs to be restarted.
-
-#### Debian Package Installation
-
-After downloading Memgraph as a Debian package, install it by running the
-following.
-
-```
-dpkg -i /path/to/memgraph_<version>.deb
-```
-
-If the installation was successful, Memgraph should already be running. To
-make sure that is true, start it explicitly with the command:
-
-```
-systemctl start memgraph
-```
-
-To verify that Memgraph is running, run the following command.
-
-```
-journalctl --unit memgraph
-```
-
-It is expected to see something like the following output.
-
-```
-Nov 23 13:40:13 hostname memgraph[14654]: Starting 8 workers
-Nov 23 13:40:13 hostname memgraph[14654]: Server is fully armed and operational
-Nov 23 13:40:13 hostname memgraph[14654]: Listening on 0.0.0.0 at 7687
-```
-
-Memgraph is now ready to process queries, you may now proceed to
-[querying](#querying). To shutdown Memgraph server, issue the following
-command.
-
-```
-systemctl stop memgraph
-```
-
-Memgraph configuration is available in `/etc/memgraph/memgraph.conf`. After
-changing the configuration, Memgraph needs to be restarted.
-
-### Querying
-
-Memgraph supports the openCypher query language which has been developed by
-[Neo4j](http://neo4j.com). The language is currently going through a
-vendor-independent standardization process. It's a declarative language
-developed specifically for interaction with graph databases.
-
-The easiest way to execute openCypher queries against Memgraph, is using
-Neo4j's command-line tool. The command-line `neo4j-client` can be installed as
-described [on the official website](https://neo4j-client.net).
-
-After installing `neo4j-client`, connect to the running Memgraph instance by
-issuing the following shell command.
-
-```
-neo4j-client --insecure -u "" -p ""  localhost 7687
-```
-
-After the client has started it should present a command prompt similar to:
-
-```
-neo4j-client 2.1.3
-Enter `:help` for usage hints.
-Connected to 'neo4j://@localhost:7687' (insecure)
-neo4j>
-```
-
-At this point it is possible to execute openCypher queries on Memgraph. Each
-query needs to end with the `;` (*semicolon*) character. For example:
-
-```
-CREATE (u:User {name: "Alice"})-[:Likes]->(m:Software {name: "Memgraph"});
-```
-
-The above will create 2 nodes in the database, one labeled "User" with name
-"Alice" and the other labeled "Software" with name "Memgraph". It will also
-create a relationship that "Alice" *likes* "Memgraph".
-
-To find created nodes and relationships, execute the following query:
-
-```
-MATCH (u:User)-[r]->(x) RETURN u, r, x;
-```
-
-### Where to Next
-
-To learn more about the openCypher language, visit **openCypher Query
-Language** chapter in this document. For real-world examples of how to use
-Memgraph visit **Examples** chapter. If you wish to use a programming language
-to execute queries on Memgraph, go to the **Drivers** chapter. Details on what
-can be stored in Memgraph are in **Storable Data Types** chapter.
-
-We *welcome and encourage* your feedback!
-

docs/user_technical/run

@@ -1,20 +0,0 @@
-#!/bin/bash
-
-working_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-
-# curl and php are required
-if [ "$( which curl )" == "" ] || [ "$( which php )" == "" ]; then
-    echo "curl and php are required!"
-    exit 1
-fi
-
-cd ${working_dir}
-generator="couscous.phar"
-
-# download the generator if it's not already downloaded
-if [ ! -f ${generator} ]; then
-    curl -OS http://couscous.io/${generator}
-fi
-
-# run the preview
-php ${generator} preview

docs/user_technical/upcoming-features.md

@@ -1,56 +0,0 @@
-## Upcoming Features
-
-This chapter describes some of the planned features, that we at Memgraph are
-working on.
-
-### Performance Improvements
-
-Excellent database performance is one of Memgraph's long-standing goals. We
-will be continually working on improving the performance. This includes:
-
-  * query compilation;
-  * query execution;
-  * core engine performance;
-  * algorithmic improvements (i.e. bidirectional breadth-first search);
-  * memory usage and
-  * other improvements.
-
-### Label-Property Index Usage Improvements
-
-Currently, indexing combinations of labels and properties can be created, but
-cannot be deleted. We plan to add a new query language construct which will
-allow deletion of created indices.
-
-### Improving openCypher Support
-
-Although we have implemented the most common features of the openCypher query
-language, there are other useful features we are still working on.
-
-#### Functions
-
-Memgraph's openCypher implementation supports the most useful functions, but
-there are more which openCypher provides. Some are related to not yet
-implemented features like paths, while some may use the features Memgraph
-already supports. Out of the remaining functions, some are more useful than
-others and as such they will be supported sooner.
-
-#### List Comprehensions
-
-List comprehensions are similar to the supported `collect` function, which
-generates a list out of multiple values. But unlike `collect`, list
-comprehensions offer a powerful mechanism for filtering or otherwise
-manipulating values which are collected into a list.
-
-For example, getting numbers between 0 and 10 and squaring them:
-
-    RETURN [x IN range(0, 10) | x^2] AS squares
-
-Another example, to collect `:Person` nodes with `age` less than 42, without
-list comprehensions can be achieved with:
-
-    MATCH (n :Person) WHERE n.age < 42 RETURN collect(n)
-
-Using list comprehensions, the same can be done with the query:
-
-    MATCH (n :Person) RETURN [n IN collect(n) WHERE n.age < 42]
-

environment/README.md

@@ -0,0 +1,15 @@
+# Memgraph Operating Environments
+
+## Issues related to build toolchain
+
+* GCC 11.2 (toolchain-v4) doesn't compile on Fedora 38, multiple definitions of enum issue
+* spdlog 1.10/11 doesn't work with fmt 10.0.0
+
+## os
+
+Under the `os` directory, you can find scripts to install all required system
+dependencies on operating systems where Memgraph natively builds. The testing
+script helps to see how to install all packages (in the case of a new package),
+or make any adjustments in the overall system setup. Also, the testing script
+helps check if Memgraph runs on a freshly installed operating system (with no
+packages installed).

environment/os/.gitignore

@@ -0,0 +1,6 @@
+*.deb
+*.deb.*
+*.rpm
+*.rpm.*
+*.tar.gz
+*.tar.gz.*

environment/os/amzn-2.sh

@@ -0,0 +1,189 @@
+#!/bin/bash
+
+set -Eeuo pipefail
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+source "$DIR/../util.sh"
+
+check_operating_system "amzn-2"
+check_architecture "x86_64"
+
+TOOLCHAIN_BUILD_DEPS=(
+    gcc gcc-c++ make # generic build tools
+    wget # used for archive download
+    gnupg2 # used for archive signature verification
+    tar gzip bzip2 xz unzip # used for archive unpacking
+    zlib-devel # zlib library used for all builds
+    expat-devel xz-devel python3-devel texinfo
+    curl libcurl-devel # for cmake
+    readline-devel # for cmake and llvm
+    libffi-devel libxml2-devel # for llvm
+    libedit-devel pcre-devel pcre2-devel automake bison # for swig
+    file
+    openssl-devel
+    gmp-devel
+    gperf
+    diffutils
+    patch
+    libipt libipt-devel # intel
+    perl # for openssl
+)
+
+TOOLCHAIN_RUN_DEPS=(
+    make # generic build tools
+    tar gzip bzip2 xz # used for archive unpacking
+    zlib # zlib library used for all builds
+    expat xz-libs python3 # for gdb
+    readline # for cmake and llvm
+    libffi libxml2 # for llvm
+    openssl-devel
+)
+
+MEMGRAPH_BUILD_DEPS=(
+    git # source code control
+    make cmake # build system
+    wget # for downloading libs
+    libuuid-devel java-11-openjdk # required by antlr
+    readline-devel # for memgraph console
+    python3-devel # for query modules
+    openssl-devel
+    libseccomp-devel
+    python3 python3-pip nmap-ncat # for tests
+    #
+    # IMPORTANT: python3-yaml does NOT exist on CentOS
+    # Install it using `pip3 install PyYAML`
+    #
+    PyYAML # Package name here does not correspond to the yum package!
+    libcurl-devel # mg-requests
+    rpm-build rpmlint # for RPM package building
+    doxygen graphviz # source documentation generators
+    which nodejs golang custom-golang1.18.9 zip unzip java-11-openjdk-devel jdk-17 custom-maven3.9.3 # for driver tests
+    autoconf # for jemalloc code generation
+    libtool  # for protobuf code generation
+    cyrus-sasl-devel
+)
+
+MEMGRAPH_RUN_DEPS=(
+    logrotate openssl python3 libseccomp
+)
+
+NEW_DEPS=(
+    wget curl tar gzip
+)
+
+list() {
+    echo "$1"
+}
+
+check() {
+    local missing=""
+    # On Fedora yum/dnf and python10 use newer glibc which is not compatible
+    # with ours, so we need to momentarely disable env
+    local OLD_LD_LIBRARY_PATH=${LD_LIBRARY_PATH:-""}
+    LD_LIBRARY_PATH=""
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            if [ ! -f "/opt/apache-maven-3.9.3/bin/mvn" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            if [ ! -f "/opt/go1.18.9/go/bin/go" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if [ "$pkg" == "PyYAML" ]; then
+            if ! python3 -c "import yaml" >/dev/null 2>/dev/null; then
+                missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if ! yum list installed "$pkg" >/dev/null 2>/dev/null; then
+            missing="$pkg $missing"
+        fi
+    done
+    if [ "$missing" != "" ]; then
+        echo "MISSING PACKAGES: $missing"
+        exit 1
+    fi
+    LD_LIBRARY_PATH=${OLD_LD_LIBRARY_PATH}
+}
+
+install() {
+    cd "$DIR"
+    if [ "$EUID" -ne 0 ]; then
+        echo "Please run as root."
+        exit 1
+    fi
+    # If GitHub Actions runner is installed, append LANG to the environment.
+    # Python related tests don't work without the LANG export.
+    if [ -d "/home/gh/actions-runner" ]; then
+        echo "LANG=en_US.utf8" >> /home/gh/actions-runner/.env
+    else
+        echo "NOTE: export LANG=en_US.utf8"
+    fi
+
+    yum update -y
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            install_custom_maven "3.9.3"
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            install_custom_golang "1.18.9"
+            continue
+        fi
+        if [ "$pkg" == jdk-17 ]; then
+          if ! yum list installed jdk-17 >/dev/null 2>/dev/null; then
+              wget --no-check-certificate -c --header "Cookie: oraclelicense=accept-securebackup-cookie" https://download.oracle.com/java/17/latest/jdk-17_linux-x64_bin.rpm
+              rpm -Uvh jdk-17_linux-x64_bin.rpm
+              # NOTE: Set Java 11 as default.
+              update-alternatives --set java java-11-openjdk.x86_64
+              update-alternatives --set javac java-11-openjdk.x86_64
+          fi
+          continue
+        fi
+        if [ "$pkg" == libipt ]; then
+            if ! yum list installed libipt >/dev/null 2>/dev/null; then
+                yum install -y http://repo.okay.com.mx/centos/8/x86_64/release/libipt-1.6.1-8.el8.x86_64.rpm
+            fi
+            continue
+        fi
+        if [ "$pkg" == libipt-devel ]; then
+            if ! yum list installed libipt-devel >/dev/null 2>/dev/null; then
+                yum install -y http://repo.okay.com.mx/centos/8/x86_64/release/libipt-devel-1.6.1-8.el8.x86_64.rpm
+            fi
+            continue
+        fi
+        if [ "$pkg" == nodejs ]; then
+            if ! yum list installed nodejs >/dev/null 2>/dev/null; then
+              yum install https://rpm.nodesource.com/pub_16.x/nodistro/repo/nodesource-release-nodistro-1.noarch.rpm -y
+              yum install nodejs -y --setopt=nodesource-nodejs.module_hotfixes=1
+            fi
+            continue
+        fi
+        if [ "$pkg" == PyYAML ]; then
+            if [ -z ${SUDO_USER+x} ]; then # Running as root (e.g. Docker).
+                pip3 install --user PyYAML
+            else # Running using sudo.
+                sudo -H -u "$SUDO_USER" bash -c "pip3 install --user PyYAML"
+            fi
+            continue
+        fi
+        if [ "$pkg" == java-11-openjdk ]; then
+            amazon-linux-extras install -y java-openjdk11
+            continue
+        fi
+        if [ "$pkg" == java-11-openjdk-devel ]; then
+            amazon-linux-extras install -y java-openjdk11
+            yum install -y java-11-openjdk-devel
+            continue
+        fi
+        yum install -y "$pkg"
+    done
+}
+
+deps=$2"[*]"
+"$1" "${!deps}"

environment/os/centos-7.sh

@@ -0,0 +1,188 @@
+#!/bin/bash
+
+set -Eeuo pipefail
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+source "$DIR/../util.sh"
+
+check_operating_system "centos-7"
+check_architecture "x86_64"
+
+TOOLCHAIN_BUILD_DEPS=(
+    coreutils gcc gcc-c++ make # generic build tools
+    wget # used for archive download
+    gnupg2 # used for archive signature verification
+    tar gzip bzip2 xz unzip # used for archive unpacking
+    zlib-devel # zlib library used for all builds
+    expat-devel libipt libipt-devel libbabeltrace-devel xz-devel python3-devel # gdb
+    texinfo # gdb
+    libcurl-devel # cmake
+    curl # snappy
+    readline-devel # cmake and llvm
+    libffi-devel libxml2-devel perl-Digest-MD5 # llvm
+    libedit-devel pcre-devel pcre2-devel automake bison # swig
+    file
+    openssl-devel
+    gmp-devel
+    gperf
+    patch
+)
+
+TOOLCHAIN_RUN_DEPS=(
+    make # generic build tools
+    tar gzip bzip2 xz # used for archive unpacking
+    zlib # zlib library used for all builds
+    expat libipt libbabeltrace xz-libs python3 # for gdb
+    readline # for cmake and llvm
+    libffi libxml2 # for llvm
+    openssl-devel
+)
+
+MEMGRAPH_BUILD_DEPS=(
+    make cmake pkgconfig # build system
+    curl wget # for downloading libs
+    libuuid-devel java-11-openjdk # required by antlr
+    readline-devel # for memgraph console
+    python3-devel # for query modules
+    openssl-devel
+    libseccomp-devel
+    python3 python-virtualenv python3-pip nmap-ncat # for qa, macro_benchmark and stress tests
+    #
+    # IMPORTANT: python3-yaml does NOT exist on CentOS
+    # Install it using `pip3 install PyYAML`
+    #
+    PyYAML # Package name here does not correspond to the yum package!
+    libcurl-devel # mg-requests
+    sbcl # for custom Lisp C++ preprocessing
+    rpm-build rpmlint # for RPM package building
+    doxygen graphviz # source documentation generators
+    which mono-complete dotnet-sdk-3.1 golang custom-golang1.18.9 # for driver tests
+    nodejs zip unzip java-11-openjdk-devel jdk-17 custom-maven3.9.3 # for driver tests
+    autoconf # for jemalloc code generation
+    libtool  # for protobuf code generation
+    cyrus-sasl-devel
+)
+
+MEMGRAPH_RUN_DEPS=(
+    logrotate openssl python3 libseccomp
+)
+
+NEW_DEPS=(
+    wget curl tar gzip
+)
+
+list() {
+    echo "$1"
+}
+
+check() {
+    local missing=""
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            if [ ! -f "/opt/apache-maven-3.9.3/bin/mvn" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            if [ ! -f "/opt/go1.18.9/go/bin/go" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if [ "$pkg" == git ]; then
+            if ! which "git" >/dev/null; then
+                missing="git $missing"
+            fi
+            continue
+        fi
+        if [ "$pkg" == "PyYAML" ]; then
+            if ! python3 -c "import yaml" >/dev/null 2>/dev/null; then
+                missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if ! yum list installed "$pkg" >/dev/null 2>/dev/null; then
+            missing="$pkg $missing"
+        fi
+    done
+    if [ "$missing" != "" ]; then
+        echo "MISSING PACKAGES: $missing"
+        exit 1
+    fi
+}
+
+install() {
+    cd "$DIR"
+    if [ "$EUID" -ne 0 ]; then
+        echo "Please run as root."
+        exit 1
+    fi
+    # If GitHub Actions runner is installed, append LANG to the environment.
+    # Python related tests doesn't work the LANG export.
+    if [ -d "/home/gh/actions-runner" ]; then
+        echo "LANG=en_US.utf8" >> /home/gh/actions-runner/.env
+    else
+        echo "NOTE: export LANG=en_US.utf8"
+    fi
+    yum install -y epel-release
+    yum remove -y ius-release
+    yum install -y \
+      https://repo.ius.io/ius-release-el7.rpm
+    yum update -y
+    yum install -y wget python3 python3-pip
+    yum install -y git
+
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            install_custom_maven "3.9.3"
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            install_custom_golang "1.18.9"
+            continue
+        fi
+        if [ "$pkg" == jdk-17 ]; then
+            if ! yum list installed jdk-17 >/dev/null 2>/dev/null; then
+                wget https://download.oracle.com/java/17/latest/jdk-17_linux-x64_bin.rpm
+                rpm -ivh jdk-17_linux-x64_bin.rpm
+                update-alternatives --set java java-11-openjdk.x86_64
+                update-alternatives --set javac java-11-openjdk.x86_64
+            fi
+            continue
+        fi
+        if [ "$pkg" == libipt ]; then
+            if ! yum list installed libipt >/dev/null 2>/dev/null; then
+                yum install -y http://repo.okay.com.mx/centos/8/x86_64/release/libipt-1.6.1-8.el8.x86_64.rpm
+            fi
+            continue
+        fi
+        if [ "$pkg" == libipt-devel ]; then
+            if ! yum list installed libipt-devel >/dev/null 2>/dev/null; then
+                yum install -y http://repo.okay.com.mx/centos/8/x86_64/release/libipt-devel-1.6.1-8.el8.x86_64.rpm
+            fi
+            continue
+        fi
+        if [ "$pkg" == dotnet-sdk-3.1 ]; then
+            if ! yum list installed dotnet-sdk-3.1 >/dev/null 2>/dev/null; then
+                wget -nv https://packages.microsoft.com/config/centos/7/packages-microsoft-prod.rpm -O packages-microsoft-prod.rpm
+                rpm -Uvh https://packages.microsoft.com/config/centos/7/packages-microsoft-prod.rpm
+                yum update -y
+                yum install -y dotnet-sdk-3.1
+            fi
+            continue
+        fi
+        if [ "$pkg" == PyYAML ]; then
+            if [ -z ${SUDO_USER+x} ]; then # Running as root (e.g. Docker).
+                pip3 install --user PyYAML
+            else # Running using sudo.
+                sudo -H -u "$SUDO_USER" bash -c "pip3 install --user PyYAML"
+            fi
+            continue
+        fi
+        yum install -y "$pkg"
+    done
+}
+
+deps=$2"[*]"
+"$1" "${!deps}"

environment/os/centos-9.sh

@@ -0,0 +1,195 @@
+#!/bin/bash
+
+set -Eeuo pipefail
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+source "$DIR/../util.sh"
+
+check_operating_system "centos-9"
+check_architecture "x86_64"
+
+TOOLCHAIN_BUILD_DEPS=(
+    coreutils-common gcc gcc-c++ make # generic build tools
+    wget # used for archive download
+    gnupg2 # used for archive signature verification
+    tar gzip bzip2 xz unzip # used for archive unpacking
+    zlib-devel # zlib library used for all builds
+    expat-devel xz-devel python3-devel texinfo libbabeltrace-devel # for gdb
+    readline-devel # for cmake and llvm
+    libffi-devel libxml2-devel # for llvm
+    libedit-devel pcre-devel pcre2-devel automake bison # for swig
+    file
+    openssl-devel
+    gmp-devel
+    gperf
+    diffutils
+    libipt libipt-devel # intel
+    patch
+)
+
+TOOLCHAIN_RUN_DEPS=(
+    make # generic build tools
+    tar gzip bzip2 xz # used for archive unpacking
+    zlib # zlib library used for all builds
+    expat xz-libs python3 # for gdb
+    readline # for cmake and llvm
+    libffi libxml2 # for llvm
+    openssl-devel
+    perl # for openssl
+)
+
+MEMGRAPH_BUILD_DEPS=(
+    git # source code control
+    make cmake pkgconf-pkg-config # build system
+    wget # for downloading libs
+    libuuid-devel java-11-openjdk # required by antlr
+    readline-devel # for memgraph console
+    python3-devel # for query modules
+    openssl-devel
+    libseccomp-devel
+    python3 python3-pip python3-virtualenv nmap-ncat # for qa, macro_benchmark and stress tests
+    #
+    # IMPORTANT: python3-yaml does NOT exist on CentOS
+    # Install it manually using `pip3 install PyYAML`
+    #
+    PyYAML # Package name here does not correspond to the yum package!
+    libcurl-devel # mg-requests
+    rpm-build rpmlint # for RPM package building
+    doxygen graphviz # source documentation generators
+    which nodejs golang custom-golang1.18.9 # for driver tests
+    zip unzip java-11-openjdk-devel java-17-openjdk java-17-openjdk-devel custom-maven3.9.3 # for driver tests
+    sbcl # for custom Lisp C++ preprocessing
+    autoconf # for jemalloc code generation
+    libtool  # for protobuf code generation
+    cyrus-sasl-devel
+)
+
+MEMGRAPH_RUN_DEPS=(
+    logrotate openssl python3 libseccomp
+)
+
+NEW_DEPS=(
+    wget curl tar gzip
+)
+
+list() {
+    echo "$1"
+}
+
+check() {
+    local missing=""
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            if [ ! -f "/opt/apache-maven-3.9.3/bin/mvn" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            if [ ! -f "/opt/go1.18.9/go/bin/go" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if [ "$pkg" == "PyYAML" ]; then
+            if ! python3 -c "import yaml" >/dev/null 2>/dev/null; then
+                missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if [ "$pkg" == "python3-virtualenv" ]; then
+            continue
+        fi
+        if ! yum list installed "$pkg" >/dev/null 2>/dev/null; then
+            missing="$pkg $missing"
+        fi
+    done
+    if [ "$missing" != "" ]; then
+        echo "MISSING PACKAGES: $missing"
+        exit 1
+    fi
+}
+
+install() {
+    cd "$DIR"
+    if [ "$EUID" -ne 0 ]; then
+        echo "Please run as root."
+        exit 1
+    fi
+    # If GitHub Actions runner is installed, append LANG to the environment.
+    # Python related tests doesn't work the LANG export.
+    if [ -d "/home/gh/actions-runner" ]; then
+        echo "LANG=en_US.utf8" >> /home/gh/actions-runner/.env
+    else
+        echo "NOTE: export LANG=en_US.utf8"
+    fi
+    yum update -y
+    yum install -y wget git python3 python3-pip
+
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            install_custom_maven "3.9.3"
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            install_custom_golang "1.18.9"
+            continue
+        fi
+        # Since there is no support for libipt-devel for CentOS 9 we install
+        # Fedoras version of same libs, they are the same version but released
+        # for different OS
+        # TODO Update when libipt-devel releases for CentOS 9
+        if [ "$pkg" == libipt ]; then
+            if ! dnf list installed libipt >/dev/null 2>/dev/null; then
+                dnf install -y http://repo.okay.com.mx/centos/8/x86_64/release/libipt-1.6.1-8.el8.x86_64.rpm
+            fi
+            continue
+        fi
+        if [ "$pkg" == libipt-devel ]; then
+            if ! dnf list installed libipt-devel >/dev/null 2>/dev/null; then
+                dnf install -y http://repo.okay.com.mx/centos/8/x86_64/release/libipt-devel-1.6.1-8.el8.x86_64.rpm
+            fi
+            continue
+        fi
+        if [ "$pkg" == libbabeltrace-devel ]; then
+            if ! dnf list installed libbabeltrace-devel >/dev/null 2>/dev/null; then
+                dnf install -y http://mirror.stream.centos.org/9-stream/CRB/x86_64/os/Packages/libbabeltrace-devel-1.5.8-10.el9.x86_64.rpm
+            fi
+            continue
+        fi
+        if [ "$pkg" == sbcl ]; then
+            if ! dnf list installed cl-asdf >/dev/null 2>/dev/null; then
+                dnf install -y 	https://pkgs.dyn.su/el8/base/x86_64/cl-asdf-20101028-18.el8.noarch.rpm
+            fi
+            if ! dnf list installed common-lisp-controller >/dev/null 2>/dev/null; then
+                dnf install -y https://pkgs.dyn.su/el8/base/x86_64/common-lisp-controller-7.4-20.el8.noarch.rpm
+            fi
+            if ! dnf list installed sbcl >/dev/null 2>/dev/null; then
+                dnf install -y https://pkgs.dyn.su/el8/base/x86_64/sbcl-2.0.1-4.el8.x86_64.rpm
+            fi
+            continue
+        fi
+        if [ "$pkg" == PyYAML ]; then
+            if [ -z ${SUDO_USER+x} ]; then # Running as root (e.g. Docker).
+                pip3 install --user PyYAML
+            else # Running using sudo.
+                sudo -H -u "$SUDO_USER" bash -c "pip3 install --user PyYAML"
+            fi
+            continue
+        fi
+        if [ "$pkg" == python3-virtualenv ]; then
+            if [ -z ${SUDO_USER+x} ]; then # Running as root (e.g. Docker).
+                pip3 install virtualenv
+                pip3 install virtualenvwrapper
+            else # Running using sudo.
+                sudo -H -u "$SUDO_USER" bash -c "pip3 install virtualenv"
+                sudo -H -u "$SUDO_USER" bash -c "pip3 install virtualenvwrapper"
+            fi
+            continue
+        fi
+        yum install -y "$pkg"
+    done
+}
+
+deps=$2"[*]"
+"$1" "${!deps}"

environment/os/debian-10.sh

@@ -0,0 +1,159 @@
+#!/bin/bash
+
+set -Eeuo pipefail
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+source "$DIR/../util.sh"
+
+check_operating_system "debian-10"
+check_architecture "x86_64"
+
+TOOLCHAIN_BUILD_DEPS=(
+    coreutils gcc g++ build-essential make # generic build tools
+    wget # used for archive download
+    gnupg # used for archive signature verification
+    tar gzip bzip2 xz-utils unzip # used for archive unpacking
+    zlib1g-dev # zlib library used for all builds
+    libexpat1-dev libipt-dev libbabeltrace-dev liblzma-dev python3-dev texinfo # for gdb
+    libcurl4-openssl-dev # for cmake
+    libreadline-dev # for cmake and llvm
+    libffi-dev libxml2-dev # for llvm
+    curl # snappy
+    file # for libunwind
+    libssl-dev # for libevent
+    libgmp-dev # for gdb
+    gperf # for proxygen
+    git # for fbthrift
+    libedit-dev libpcre2-dev libpcre3-dev automake bison # for swig
+)
+
+TOOLCHAIN_RUN_DEPS=(
+    make # generic build tools
+    tar gzip bzip2 xz-utils # used for archive unpacking
+    zlib1g # zlib library used for all builds
+    libexpat1 libipt2 libbabeltrace1 liblzma5 python3 # for gdb
+    libcurl4 # for cmake
+    libreadline7 # for cmake and llvm
+    libffi6 libxml2 # for llvm
+    libssl-dev # for libevent
+)
+
+MEMGRAPH_BUILD_DEPS=(
+    git # source code control
+    make cmake pkg-config # build system
+    curl wget # for downloading libs
+    uuid-dev default-jre-headless # required by antlr
+    libreadline-dev # for memgraph console
+    libpython3-dev python3-dev # for query modules
+    libssl-dev
+    libseccomp-dev
+    netcat # tests are using nc to wait for memgraph
+    python3 virtualenv python3-virtualenv python3-pip # for qa, macro_benchmark and stress tests
+    python3-yaml # for the configuration generator
+    libcurl4-openssl-dev # mg-requests
+    sbcl # for custom Lisp C++ preprocessing
+    doxygen graphviz # source documentation generators
+    mono-runtime mono-mcs zip unzip default-jdk-headless oracle-java17-installer custom-maven3.9.3 # for driver tests
+    dotnet-sdk-3.1 golang custom-golang1.18.9 nodejs npm # for driver tests
+    autoconf # for jemalloc code generation
+    libtool  # for protobuf code generation
+    libsasl2-dev
+)
+
+MEMGRAPH_RUN_DEPS=(
+    logrotate openssl python3 libseccomp
+)
+
+NEW_DEPS=(
+    wget curl tar gzip
+)
+
+list() {
+    echo "$1"
+}
+
+check() {
+    local missing=""
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            if [ ! -f "/opt/apache-maven-3.9.3/bin/mvn" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            if [ ! -f "/opt/go1.18.9/go/bin/go" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if ! dpkg -s "$pkg" >/dev/null 2>/dev/null; then
+            missing="$pkg $missing"
+        fi
+    done
+    if [ "$missing" != "" ]; then
+        echo "MISSING PACKAGES: $missing"
+        exit 1
+    fi
+}
+
+install() {
+    cat >/etc/apt/sources.list <<EOF
+deb http://deb.debian.org/debian/ buster main non-free contrib
+deb-src http://deb.debian.org/debian/ buster main non-free contrib
+deb http://deb.debian.org/debian/ buster-updates main contrib non-free
+deb-src http://deb.debian.org/debian/ buster-updates main contrib non-free
+deb http://security.debian.org/debian-security buster/updates main contrib non-free
+deb-src http://security.debian.org/debian-security buster/updates main contrib non-free
+EOF
+    apt --allow-releaseinfo-change update
+    cat >/etc/apt/sources.list.d/java.list << EOF
+deb http://ppa.launchpad.net/linuxuprising/java/ubuntu bionic main
+deb-src http://ppa.launchpad.net/linuxuprising/java/ubuntu bionic main
+EOF
+    cd "$DIR"
+    apt install -y gnupg
+    apt-key adv --keyserver keyserver.ubuntu.com --recv-keys EA8CACC073C3DB2A
+    apt --allow-releaseinfo-change update
+    # If GitHub Actions runner is installed, append LANG to the environment.
+    # Python related tests doesn't work the LANG export.
+    if [ -d "/home/gh/actions-runner" ]; then
+        echo "LANG=en_US.utf8" >> /home/gh/actions-runner/.env
+    else
+        echo "NOTE: export LANG=en_US.utf8"
+    fi
+
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            install_custom_maven "3.9.3"
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            install_custom_golang "1.18.9"
+            continue
+        fi
+        if [ "$pkg" == oracle-java17-installer ]; then
+            if ! dpkg -s "$pkg" 2>/dev/null >/dev/null; then
+              echo oracle-java17-installer shared/accepted-oracle-license-v1-3 select true | /usr/bin/debconf-set-selections
+              echo oracle-java17-installer shared/accepted-oracle-license-v1-3 seen true | /usr/bin/debconf-set-selections
+              apt install -y "$pkg"
+              update-alternatives --set java /usr/lib/jvm/java-11-openjdk-amd64/bin/java
+              update-alternatives --set javac /usr/lib/jvm/java-11-openjdk-amd64/bin/javac
+            fi
+            continue
+        fi
+        if [ "$pkg" == dotnet-sdk-3.1 ]; then
+            if ! dpkg -s "$pkg" 2>/dev/null >/dev/null; then
+                wget -nv https://packages.microsoft.com/config/debian/10/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
+                dpkg -i packages-microsoft-prod.deb
+                apt-get update
+                apt-get install -y apt-transport-https dotnet-sdk-3.1
+            fi
+            continue
+        fi
+        apt install -y "$pkg"
+    done
+}
+
+deps=$2"[*]"
+"$1" "${!deps}"

environment/os/debian-11-arm.sh

@@ -0,0 +1,146 @@
+#!/bin/bash
+
+set -Eeuo pipefail
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+source "$DIR/../util.sh"
+
+check_operating_system "debian-11"
+check_architecture "arm64" "aarch64"
+
+TOOLCHAIN_BUILD_DEPS=(
+    coreutils gcc g++ build-essential make # generic build tools
+    wget # used for archive download
+    gnupg # used for archive signature verification
+    tar gzip bzip2 xz-utils unzip # used for archive unpacking
+    zlib1g-dev # zlib library used for all builds
+    libexpat1-dev liblzma-dev python3-dev texinfo # for gdb
+    libcurl4-openssl-dev # for cmake
+    libreadline-dev # for cmake and llvm
+    libffi-dev libxml2-dev # for llvm
+    libedit-dev libpcre2-dev libpcre3-dev automake bison # for swig
+    curl # snappy
+    file # for libunwind
+    libssl-dev # for libevent
+    libgmp-dev
+    gperf # for proxygen
+    git # for fbthrift
+)
+
+TOOLCHAIN_RUN_DEPS=(
+    make # generic build tools
+    tar gzip bzip2 xz-utils # used for archive unpacking
+    zlib1g # zlib library used for all builds
+    libexpat1 liblzma5 python3 # for gdb
+    libcurl4 # for cmake
+    file # for CPack
+    libreadline8 # for cmake and llvm
+    libffi7 libxml2 # for llvm
+    libssl-dev # for libevent
+)
+
+MEMGRAPH_BUILD_DEPS=(
+    git # source code control
+    make pkg-config # build system
+    curl wget # for downloading libs
+    uuid-dev default-jre-headless # required by antlr
+    libreadline-dev # for memgraph console
+    libpython3-dev python3-dev # for query modules
+    libssl-dev
+    libseccomp-dev
+    netcat # tests are using nc to wait for memgraph
+    python3 virtualenv python3-virtualenv python3-pip # for qa, macro_benchmark and stress tests
+    python3-yaml # for the configuration generator
+    libcurl4-openssl-dev # mg-requests
+    sbcl # for custom Lisp C++ preprocessing
+    doxygen graphviz # source documentation generators
+    mono-runtime mono-mcs zip unzip default-jdk-headless openjdk-17-jdk custom-maven3.9.3 # for driver tests
+    golang custom-golang1.18.9 nodejs npm
+    autoconf # for jemalloc code generation
+    libtool  # for protobuf code generation
+    libsasl2-dev
+)
+
+MEMGRAPH_RUN_DEPS=(
+    logrotate openssl python3 libseccomp
+)
+
+NEW_DEPS=(
+    wget curl tar gzip
+)
+
+list() {
+    echo "$1"
+}
+
+check() {
+    local missing=""
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            if [ ! -f "/opt/apache-maven-3.9.3/bin/mvn" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            if [ ! -f "/opt/go1.18.9/go/bin/go" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if ! dpkg -s "$pkg" >/dev/null 2>/dev/null; then
+            missing="$pkg $missing"
+        fi
+    done
+    if [ "$missing" != "" ]; then
+        echo "MISSING PACKAGES: $missing"
+        exit 1
+    fi
+}
+
+install() {
+    cat >/etc/apt/sources.list <<EOF
+deb http://deb.debian.org/debian bullseye main
+deb-src http://deb.debian.org/debian bullseye main
+
+deb http://deb.debian.org/debian-security/ bullseye-security main
+deb-src http://deb.debian.org/debian-security/ bullseye-security main
+
+deb http://deb.debian.org/debian bullseye-updates main
+deb-src http://deb.debian.org/debian bullseye-updates main
+EOF
+    cd "$DIR"
+    apt update
+    # If GitHub Actions runner is installed, append LANG to the environment.
+    # Python related tests doesn't work the LANG export.
+    if [ -d "/home/gh/actions-runner" ]; then
+        echo "LANG=en_US.utf8" >> /home/gh/actions-runner/.env
+    else
+        echo "NOTE: export LANG=en_US.utf8"
+    fi
+    apt install -y wget
+
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            install_custom_maven "3.9.3"
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            install_custom_golang "1.18.9"
+            continue
+        fi
+        if [ "$pkg" == openjdk-17-jdk ]; then
+            if ! dpkg -s "$pkg" 2>/dev/null >/dev/null; then
+                apt install -y "$pkg"
+                # The default Java version should be Java 11
+                update-alternatives --set java /usr/lib/jvm/java-11-openjdk-arm64/bin/java
+                update-alternatives --set javac /usr/lib/jvm/java-11-openjdk-arm64/bin/javac
+            fi
+            continue
+        fi
+        apt install -y "$pkg"
+    done
+}
+
+deps=$2"[*]"
+"$1" "${!deps}"

environment/os/debian-11.sh

@@ -0,0 +1,155 @@
+#!/bin/bash
+
+set -Eeuo pipefail
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+source "$DIR/../util.sh"
+
+check_operating_system "debian-11"
+check_architecture "x86_64"
+
+TOOLCHAIN_BUILD_DEPS=(
+    coreutils gcc g++ build-essential make # generic build tools
+    wget # used for archive download
+    gnupg # used for archive signature verification
+    tar gzip bzip2 xz-utils unzip # used for archive unpacking
+    zlib1g-dev # zlib library used for all builds
+    libexpat1-dev libipt-dev libbabeltrace-dev liblzma-dev python3-dev texinfo # for gdb
+    libcurl4-openssl-dev # for cmake
+    libreadline-dev # for cmake and llvm
+    libffi-dev libxml2-dev # for llvm
+    libedit-dev libpcre2-dev libpcre3-dev automake bison # for swig
+    curl # snappy
+    file # for libunwind
+    libssl-dev # for libevent
+    libgmp-dev
+    gperf # for proxygen
+    git # for fbthrift
+)
+
+TOOLCHAIN_RUN_DEPS=(
+    make # generic build tools
+    tar gzip bzip2 xz-utils # used for archive unpacking
+    zlib1g # zlib library used for all builds
+    libexpat1 libipt2 libbabeltrace1 liblzma5 python3 # for gdb
+    libcurl4 # for cmake
+    file # for CPack
+    libreadline8 # for cmake and llvm
+    libffi7 libxml2 # for llvm
+    libssl-dev # for libevent
+)
+
+MEMGRAPH_BUILD_DEPS=(
+    git # source code control
+    make cmake pkg-config # build system
+    curl wget # for downloading libs
+    uuid-dev default-jre-headless # required by antlr
+    libreadline-dev # for memgraph console
+    libpython3-dev python3-dev # for query modules
+    libssl-dev
+    libseccomp-dev
+    netcat # tests are using nc to wait for memgraph
+    python3 virtualenv python3-virtualenv python3-pip # for qa, macro_benchmark and stress tests
+    python3-yaml # for the configuration generator
+    libcurl4-openssl-dev # mg-requests
+    sbcl # for custom Lisp C++ preprocessing
+    doxygen graphviz # source documentation generators
+    mono-runtime mono-mcs zip unzip default-jdk-headless openjdk-17-jdk custom-maven3.9.3 # for driver tests
+    dotnet-sdk-3.1 golang custom-golang1.18.9 nodejs npm
+    autoconf # for jemalloc code generation
+    libtool  # for protobuf code generation
+    libsasl2-dev
+)
+
+MEMGRAPH_RUN_DEPS=(
+    logrotate openssl python3 libseccomp
+)
+
+NEW_DEPS=(
+    wget curl tar gzip
+)
+
+list() {
+    echo "$1"
+}
+
+check() {
+    local missing=""
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            if [ ! -f "/opt/apache-maven-3.9.3/bin/mvn" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            if [ ! -f "/opt/go1.18.9/go/bin/go" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if ! dpkg -s "$pkg" >/dev/null 2>/dev/null; then
+            missing="$pkg $missing"
+        fi
+    done
+    if [ "$missing" != "" ]; then
+        echo "MISSING PACKAGES: $missing"
+        exit 1
+    fi
+}
+
+install() {
+    cat >/etc/apt/sources.list <<EOF
+deb http://deb.debian.org/debian bullseye main
+deb-src http://deb.debian.org/debian bullseye main
+
+deb http://deb.debian.org/debian-security/ bullseye-security main
+deb-src http://deb.debian.org/debian-security/ bullseye-security main
+
+deb http://deb.debian.org/debian bullseye-updates main
+deb-src http://deb.debian.org/debian bullseye-updates main
+EOF
+    cd "$DIR"
+    apt update
+    # If GitHub Actions runner is installed, append LANG to the environment.
+    # Python related tests doesn't work the LANG export.
+    if [ -d "/home/gh/actions-runner" ]; then
+        echo "LANG=en_US.utf8" >> /home/gh/actions-runner/.env
+    else
+        echo "NOTE: export LANG=en_US.utf8"
+    fi
+    apt install -y wget
+
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            install_custom_maven "3.9.3"
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            install_custom_golang "1.18.9"
+            continue
+        fi
+        if [ "$pkg" == openjdk-17-jdk ]; then
+            if ! dpkg -s "$pkg" 2>/dev/null >/dev/null; then
+                apt install -y "$pkg"
+                # The default Java version should be Java 11
+                update-alternatives --set java /usr/lib/jvm/java-11-openjdk-amd64/bin/java
+                update-alternatives --set javac /usr/lib/jvm/java-11-openjdk-amd64/bin/javac
+            fi
+            continue
+        fi
+        if [ "$pkg" == dotnet-sdk-3.1  ]; then
+            if ! dpkg -s "$pkg" 2>/dev/null >/dev/null; then
+                wget -nv https://packages.microsoft.com/config/debian/10/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
+                dpkg -i packages-microsoft-prod.deb
+                apt-get update
+                apt-get install -y apt-transport-https dotnet-sdk-3.1
+            fi
+            continue
+        fi
+        apt install -y "$pkg"
+    done
+}
+
+deps=$2"[*]"
+"$1" "${!deps}"

environment/os/fedora-36.sh

@@ -0,0 +1,149 @@
+#!/bin/bash
+
+set -Eeuo pipefail
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+source "$DIR/../util.sh"
+
+check_operating_system "fedora-36"
+check_architecture "x86_64"
+
+TOOLCHAIN_BUILD_DEPS=(
+    coreutils-common gcc gcc-c++ make # generic build tools
+    wget # used for archive download
+    gnupg2 # used for archive signature verification
+    tar gzip bzip2 xz unzip # used for archive unpacking
+    zlib-devel # zlib library used for all builds
+    expat-devel xz-devel python3-devel texinfo libbabeltrace-devel # for gdb
+    curl libcurl-devel # for cmake
+    readline-devel # for cmake and llvm
+    libffi-devel libxml2-devel # for llvm
+    libedit-devel pcre-devel pcre2-devel automake bison # for swig
+    file
+    openssl-devel
+    gmp-devel
+    gperf
+    diffutils
+    libipt libipt-devel # intel
+    patch
+    perl # for openssl
+)
+
+TOOLCHAIN_RUN_DEPS=(
+    make # generic build tools
+    tar gzip bzip2 xz # used for archive unpacking
+    zlib # zlib library used for all builds
+    expat xz-libs python3 # for gdb
+    readline # for cmake and llvm
+    libffi libxml2 # for llvm
+    openssl-devel
+)
+
+MEMGRAPH_BUILD_DEPS=(
+    git # source code control
+    make cmake pkgconf-pkg-config # build system
+    wget # for downloading libs
+    libuuid-devel java-11-openjdk # required by antlr
+    readline-devel # for memgraph console
+    python3-devel # for query modules
+    openssl-devel
+    libseccomp-devel
+    python3 python3-pip python3-virtualenv python3-virtualenvwrapper python3-pyyaml nmap-ncat # for tests
+    libcurl-devel # mg-requests
+    rpm-build rpmlint # for RPM package building
+    doxygen graphviz # source documentation generators
+    java-11-openjdk-devel java-17-openjdk-devel custom-maven3.9.3 # for driver tests
+    which zip unzip
+    nodejs golang custom-golang1.18.9 # for driver tests
+    sbcl # for custom Lisp C++ preprocessing
+    autoconf # for jemalloc code generation
+    libtool  # for protobuf code generation
+    cyrus-sasl-devel
+)
+
+MEMGRAPH_RUN_DEPS=(
+    logrotate openssl python3 libseccomp
+)
+
+NEW_DEPS=(
+    wget curl tar gzip
+)
+
+list() {
+    echo "$1"
+}
+
+check() {
+    local missing=""
+    if [ -v LD_LIBRARY_PATH ]; then
+        # On Fedora yum/dnf and python10 use newer glibc which is not compatible
+        # with ours, so we need to momentarely disable env
+        local OLD_LD_LIBRARY_PATH=${LD_LIBRARY_PATH}
+        LD_LIBRARY_PATH=""
+    fi
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            if [ ! -f "/opt/apache-maven-3.9.3/bin/mvn" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            if [ ! -f "/opt/go1.18.9/go/bin/go" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if ! dnf list installed "$pkg" >/dev/null 2>/dev/null; then
+            missing="$pkg $missing"
+        fi
+    done
+    if [ "$missing" != "" ]; then
+        echo "MISSING PACKAGES: $missing"
+        exit 1
+    fi
+    if [ -v OLD_LD_LIBRARY_PATH ]; then
+        echo "Restoring LD_LIBRARY_PATH..."
+        LD_LIBRARY_PATH=${OLD_LD_LIBRARY_PATH}
+    fi
+}
+
+install() {
+    cd "$DIR"
+    if [ "$EUID" -ne 0 ]; then
+        echo "Please run as root."
+        exit 1
+    fi
+    # If GitHub Actions runner is installed, append LANG to the environment.
+    # Python related tests don't work without the LANG export.
+    if [ -d "/home/gh/actions-runner" ]; then
+        echo "LANG=en_US.utf8" >> /home/gh/actions-runner/.env
+    else
+        echo "NOTE: export LANG=en_US.utf8"
+    fi
+    dnf update -y
+
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            install_custom_maven "3.9.3"
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            install_custom_golang "1.18.9"
+            continue
+        fi
+        if [ "$pkg" == java-17-openjdk-devel ]; then
+            if ! dnf list installed "$pkg" >/dev/null 2>/dev/null; then
+                dnf install -y "$pkg"
+                # The default Java version should be Java 11
+                update-alternatives --set java java-11-openjdk.x86_64
+                update-alternatives --set javac java-11-openjdk.x86_64
+            fi
+            continue
+        fi
+        dnf install -y "$pkg"
+    done
+}
+
+deps=$2"[*]"
+"$1" "${!deps}"

environment/os/fedora-38.sh

@@ -0,0 +1,108 @@
+#!/bin/bash
+
+set -Eeuo pipefail
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+source "$DIR/../util.sh"
+
+check_operating_system "fedora-38"
+check_architecture "x86_64"
+
+TOOLCHAIN_BUILD_DEPS=(
+    coreutils-common gcc gcc-c++ make # generic build tools
+    wget # used for archive download
+    gnupg2 # used for archive signature verification
+    tar gzip bzip2 xz unzip # used for archive unpacking
+    zlib-devel # zlib library used for all builds
+    expat-devel xz-devel python3-devel texinfo libbabeltrace-devel # for gdb
+    curl libcurl-devel # for cmake
+    readline-devel # for cmake and llvm
+    libffi-devel libxml2-devel # for llvm
+    libedit-devel pcre-devel pcre2-devel automake bison # for swig
+    file
+    openssl-devel
+    gmp-devel
+    gperf
+    diffutils
+    libipt libipt-devel # intel
+    patch
+    perl # for openssl
+)
+
+TOOLCHAIN_RUN_DEPS=(
+    make # generic build tools
+    tar gzip bzip2 xz # used for archive unpacking
+    zlib # zlib library used for all builds
+    expat xz-libs python3 # for gdb
+    readline # for cmake and llvm
+    libffi libxml2 # for llvm
+    openssl-devel
+)
+
+MEMGRAPH_BUILD_DEPS=(
+    git # source code control
+    make pkgconf-pkg-config # build system
+    wget # for downloading libs
+    libuuid-devel java-11-openjdk # required by antlr
+    readline-devel # for memgraph console
+    python3-devel # for query modules
+    openssl-devel
+    libseccomp-devel
+    python3 python3-pip python3-virtualenv python3-virtualenvwrapper python3-pyyaml nmap-ncat # for tests
+    libcurl-devel # mg-requests
+    rpm-build rpmlint # for RPM package building
+    doxygen graphviz # source documentation generators
+    which nodejs golang zip unzip java-11-openjdk-devel # for driver tests
+    sbcl # for custom Lisp C++ preprocessing
+    autoconf # for jemalloc code generation
+    libtool  # for protobuf code generation
+)
+
+list() {
+    echo "$1"
+}
+
+check() {
+    if [ -v LD_LIBRARY_PATH ]; then
+      # On Fedora 38 yum/dnf and python11 use newer glibc which is not compatible
+      # with ours, so we need to momentarely disable env
+      local OLD_LD_LIBRARY_PATH=${LD_LIBRARY_PATH}
+      LD_LIBRARY_PATH=""
+    fi
+    local missing=""
+    for pkg in $1; do
+        if ! dnf list installed "$pkg" >/dev/null 2>/dev/null; then
+            missing="$pkg $missing"
+        fi
+    done
+    if [ "$missing" != "" ]; then
+        echo "MISSING PACKAGES: $missing"
+        exit 1
+    fi
+    if [ -v OLD_LD_LIBRARY_PATH ]; then
+      echo "Restoring LD_LIBRARY_PATH..."
+      LD_LIBRARY_PATH=${OLD_LD_LIBRARY_PATH}
+    fi
+}
+
+install() {
+    cd "$DIR"
+    if [ "$EUID" -ne 0 ]; then
+        echo "Please run as root."
+        exit 1
+    fi
+    # If GitHub Actions runner is installed, append LANG to the environment.
+    # Python related tests don't work without the LANG export.
+    if [ -d "/home/gh/actions-runner" ]; then
+        echo "LANG=en_US.utf8" >> /home/gh/actions-runner/.env
+    else
+        echo "NOTE: export LANG=en_US.utf8"
+    fi
+    dnf update -y
+    for pkg in $1; do
+        dnf install -y "$pkg"
+    done
+}
+
+deps=$2"[*]"
+"$1" "${!deps}"

environment/os/run.sh

@@ -0,0 +1,145 @@
+#!/bin/bash
+set -Eeuo pipefail
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+IFS=' '
+# NOTE: docker_image_name could be local image build based on release/package images.
+# NOTE: each line has to be under quotes, docker_container_type, script_name and docker_image_name separate with a space.
+# "docker_container_type script_name docker_image_name"
+OPERATING_SYSTEMS=(
+  "mgrun amzn-2 amazonlinux:2"
+  "mgrun centos-7 centos:7"
+  "mgrun centos-9 dokken/centos-stream-9"
+  "mgrun debian-10 debian:10"
+  "mgrun debian-11 debian:11"
+  "mgrun fedora-36 fedora:36"
+  "mgrun ubuntu-18.04 ubuntu:18.04"
+  "mgrun ubuntu-20.04 ubuntu:20.04"
+  "mgrun ubuntu-22.04 ubuntu:22.04"
+  # "mgbuild centos-7 package-mgbuild_centos-7"
+)
+
+if [ ! "$(docker info)" ]; then
+  echo "ERROR: Docker is required"
+  exit 1
+fi
+print_help () {
+  echo -e "$0 all\t\t\t\t  => start + init all containers in the background"
+  echo -e "$0 check\t\t\t\t  => check all containers"
+  echo -e "$0 delete\t\t\t\t  => stop + remove all containers"
+  echo -e "$0 copy src_container dst_container => copy build package from src to dst container"
+  exit 1
+}
+
+# NOTE: This is an idempotent operation!
+# TODO(gitbuda): Consider making docker_run always delete + start a new container or add a new function.
+docker_run () {
+  cnt_name="$1"
+  cnt_image="$2"
+  if [ ! "$(docker ps -q -f name=$cnt_name)" ]; then
+      if [ "$(docker ps -aq -f status=exited -f name=$cnt_name)" ]; then
+          echo "Cleanup of the old exited container..."
+          docker rm $cnt_name
+      fi
+      docker run -d --volume "$SCRIPT_DIR/../../:/memgraph" --network host --name "$cnt_name" "$cnt_image" sleep infinity
+  fi
+  echo "The $cnt_image container is active under $cnt_name name!"
+}
+
+docker_exec () {
+  cnt_name="$1"
+  cnt_cmd="$2"
+  docker exec -it "$cnt_name" bash -c "$cnt_cmd"
+}
+
+docker_stop_and_rm () {
+  cnt_name="$1"
+  if [ "$(docker ps -q -f name=$cnt_name)" ]; then
+      docker stop "$1"
+      if [ "$(docker ps -aq -f status=exited -f name=$cnt_name)" ]; then
+        docker rm "$1"
+      fi
+  fi
+}
+
+# TODO(gitbuda): Make the call to `install NEW_DEPS` configurable, the question what else is useful?
+start_all () {
+  for script_docker_pair in "${OPERATING_SYSTEMS[@]}"; do
+    read -a script_docker <<< "$script_docker_pair"
+    docker_container_type="${script_docker[0]}"
+    script_name="${script_docker[1]}"
+    docker_image="${script_docker[2]}"
+    docker_name="${docker_container_type}_$script_name"
+    echo ""
+    echo "~~~~ OPERATING ON $docker_image as $docker_name..."
+    docker_run "$docker_name" "$docker_image"
+    docker_exec "$docker_name" "/memgraph/environment/os/$script_name.sh install NEW_DEPS"
+    echo "---- DONE EVERYHING FOR $docker_image as $docker_name..."
+    echo ""
+  done
+}
+
+check_all () {
+  for script_docker_pair in "${OPERATING_SYSTEMS[@]}"; do
+    read -a script_docker <<< "$script_docker_pair"
+    docker_container_type="${script_docker[0]}"
+    script_name="${script_docker[1]}"
+    docker_image="${script_docker[2]}"
+    docker_name="${docker_container_type}_$script_name"
+    echo ""
+    echo "~~~~ OPERATING ON $docker_image as $docker_name..."
+    docker_exec "$docker_name" "/memgraph/environment/os/$script_name.sh check NEW_DEPS"
+    echo "---- DONE EVERYHING FOR $docker_image as $docker_name..."
+    echo ""
+  done
+}
+
+delete_all () {
+  for script_docker_pair in "${OPERATING_SYSTEMS[@]}"; do
+    read -a script_docker <<< "$script_docker_pair"
+    docker_container_type="${script_docker[0]}"
+    script_name="${script_docker[1]}"
+    docker_image="${script_docker[2]}"
+    docker_name="${docker_container_type}_$script_name"
+    docker_stop_and_rm "$docker_name"
+    echo "~~~~ $docker_image as $docker_name DELETED"
+  done
+}
+
+# TODO(gitbuda): Copy file between containers is a useful util, also delete, + consider copying of a whole folder.
+# TODO(gitbuda): Add args: src_cnt dst_cnt abs_path; both file and recursive folder, always delete + copy.
+copy_build_package () {
+  src_container="$1"
+  dst_container="$2"
+  src="$src_container:/memgraph/build/output"
+  tmp_dst="$SCRIPT_DIR/../../build"
+  mkdir -p "$tmp_dst"
+  rm -rf "$tmp_dst/output"
+  dst="$dst_container:/"
+  docker cp "$src" "$tmp_dst"
+  docker cp "$tmp_dst/output" "$dst"
+}
+
+if [ "$#" -eq 0 ]; then
+  print_help
+else
+  case $1 in
+    all)
+      start_all
+    ;;
+    check)
+      check_all
+    ;;
+    delete)
+      delete_all
+    ;;
+    copy) # src_container dst_container
+      if [ "$#" -ne 3 ]; then
+        print_help
+      fi
+      copy_build_package "$2" "$3"
+    ;;
+    *)
+      print_help
+    ;;
+  esac
+fi

environment/os/template.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+
+set -Eeuo pipefail
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+source "$DIR/../util.sh"
+
+check_operating_system "todo-os-name"
+check_architecture "todo-arch-name"
+
+TOOLCHAIN_BUILD_DEPS=(
+    pkg
+)
+
+TOOLCHAIN_RUN_DEPS=(
+    pkg
+)
+
+MEMGRAPH_BUILD_DEPS=(
+    pkg
+)
+
+MEMGRAPH_RUN_DEPS=(
+    pkg
+)
+
+# NEW_DEPS is useful when you won't to test the installation of a new package.
+# During the test you can put here packages like wget curl tar gzip
+NEW_DEPS=(
+  pkg
+)
+
+list() {
+    echo "$1"
+}
+
+check() {
+    echo "TODO: Implement ${FUNCNAME[0]}."
+    exit 1
+}
+
+install() {
+    echo "TODO: Implement ${FUNCNAME[0]}."
+    exit 1
+}
+
+# http://ahmed.amayem.com/bash-indirect-expansion-exploration
+deps=$2"[*]"
+"$1" "${!deps}"

environment/os/ubuntu-18.04.sh

@@ -0,0 +1,126 @@
+#!/bin/bash
+
+set -Eeuo pipefail
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+source "$DIR/../util.sh"
+
+check_operating_system "ubuntu-18.04"
+check_architecture "x86_64"
+
+TOOLCHAIN_BUILD_DEPS=(
+    coreutils gcc g++ build-essential make # generic build tools
+    wget # archive download
+    gnupg # archive signature verification
+    tar gzip bzip2 xz-utils unzip # archive unpacking
+    zlib1g-dev # zlib library used for all builds
+    libexpat1-dev libipt-dev libbabeltrace-dev liblzma-dev python3-dev # gdb
+    texinfo # gdb
+    libcurl4-openssl-dev # cmake
+    libreadline-dev # cmake and llvm
+    libffi-dev libxml2-dev # llvm
+    curl # snappy
+    file
+    git # for thrift
+    libgmp-dev # for gdb
+    gperf # for proxygen
+    libssl-dev
+    libedit-dev libpcre2-dev libpcre3-dev automake bison # swig
+)
+
+TOOLCHAIN_RUN_DEPS=(
+    make # generic build tools
+    tar gzip bzip2 xz-utils # used for archive unpacking
+    zlib1g # zlib library used for all builds
+    libexpat1 libipt1 libbabeltrace1 liblzma5 python3 # for gdb
+    libcurl4 # for cmake
+    libreadline7 # for cmake and llvm
+    libffi6 libxml2 # for llvm
+    libssl-dev # for libevent
+)
+
+MEMGRAPH_BUILD_DEPS=(
+    git # source code control
+    make cmake pkg-config # build system
+    curl wget # downloading libs
+    uuid-dev default-jre-headless # required by antlr
+    libreadline-dev # memgraph console
+    libpython3-dev python3-dev # for query modules
+    libssl-dev
+    libseccomp-dev
+    python3 virtualenv python3-virtualenv python3-pip # qa, macro bench and stress tests
+    python3-yaml # the configuration generator
+    libcurl4-openssl-dev # mg-requests
+    sbcl # custom Lisp C++ preprocessing
+    doxygen graphviz # source documentation generators
+    mono-runtime mono-mcs nodejs zip unzip default-jdk-headless openjdk-17-jdk-headless custom-maven3.9.3 # driver tests
+    custom-golang1.18.9 # for driver tests
+    autoconf # for jemalloc code generation
+    libtool  # for protobuf code generation
+    libsasl2-dev
+)
+
+MEMGRAPH_RUN_DEPS=(
+    logrotate openssl python3 libseccomp2
+)
+
+NEW_DEPS=(
+    wget curl tar gzip
+)
+
+list() {
+    echo "$1"
+}
+
+check() {
+    local missing=""
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            if [ ! -f "/opt/apache-maven-3.9.3/bin/mvn" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            if [ ! -f "/opt/go1.18.9/go/bin/go" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if ! dpkg -s "$pkg" >/dev/null 2>/dev/null; then
+            missing="$pkg $missing"
+        fi
+    done
+    if [ "$missing" != "" ]; then
+        echo "MISSING PACKAGES: $missing"
+        exit 1
+    fi
+}
+
+install() {
+    apt update -y
+
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            install_custom_maven "3.9.3"
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            install_custom_golang "1.18.9"
+            continue
+        fi
+        if [ "$pkg" == openjdk-17-jdk-headless ]; then
+            if ! dpkg -s "$pkg" 2>/dev/null >/dev/null; then
+                apt install -y "$pkg"
+                # The default Java version should be Java 11
+                update-alternatives --set java /usr/lib/jvm/java-11-openjdk-amd64/bin/java
+                update-alternatives --set javac /usr/lib/jvm/java-11-openjdk-amd64/bin/javac
+            fi
+            continue
+        fi
+        apt install -y "$pkg"
+    done
+}
+
+deps=$2"[*]"
+"$1" "${!deps}"

environment/os/ubuntu-20.04.sh

@@ -0,0 +1,145 @@
+#!/bin/bash
+
+set -Eeuo pipefail
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+source "$DIR/../util.sh"
+
+check_operating_system "ubuntu-20.04"
+check_architecture "x86_64"
+
+TOOLCHAIN_BUILD_DEPS=(
+    coreutils gcc g++ build-essential make # generic build tools
+    wget # used for archive download
+    gnupg # used for archive signature verification
+    tar gzip bzip2 xz-utils unzip # used for archive unpacking
+    zlib1g-dev # zlib library used for all builds
+    libexpat1-dev libipt-dev libbabeltrace-dev liblzma-dev python3-dev texinfo # for gdb
+    libcurl4-openssl-dev # for cmake
+    libreadline-dev # for cmake and llvm
+    libffi-dev libxml2-dev # for llvm
+    curl # snappy
+    file
+    git # for thrift
+    libgmp-dev # for gdb
+    gperf # for proxygen
+    libssl-dev
+    libedit-dev libpcre2-dev libpcre3-dev automake bison # for swig
+)
+
+TOOLCHAIN_RUN_DEPS=(
+    make # generic build tools
+    tar gzip bzip2 xz-utils # used for archive unpacking
+    zlib1g # zlib library used for all builds
+    libexpat1 libipt2 libbabeltrace1 liblzma5 python3 # for gdb
+    libcurl4 # for cmake
+    libreadline8 # for cmake and llvm
+    libffi7 libxml2 # for llvm
+    libssl-dev # for libevent
+)
+
+MEMGRAPH_BUILD_DEPS=(
+    git # source code control
+    make cmake pkg-config # build system
+    curl wget # for downloading libs
+    uuid-dev default-jre-headless # required by antlr
+    libreadline-dev # for memgraph console
+    libpython3-dev python3-dev # for query modules
+    libssl-dev
+    libseccomp-dev
+    netcat # tests are using nc to wait for memgraph
+    python3 python3-virtualenv python3-pip # for qa, macro_benchmark and stress tests
+    python3-yaml # for the configuration generator
+    libcurl4-openssl-dev # mg-requests
+    sbcl # for custom Lisp C++ preprocessing
+    doxygen graphviz # source documentation generators
+    mono-runtime mono-mcs zip unzip default-jdk-headless openjdk-17-jdk-headless custom-maven3.9.3 # for driver tests
+    dotnet-sdk-3.1 golang custom-golang1.18.9 nodejs npm # for driver tests
+    autoconf # for jemalloc code generation
+    libtool  # for protobuf code generation
+    libsasl2-dev
+)
+
+MEMGRAPH_RUN_DEPS=(
+    logrotate openssl python3 libseccomp2
+)
+
+NEW_DEPS=(
+    wget curl tar gzip
+)
+
+list() {
+    echo "$1"
+}
+
+check() {
+    local missing=""
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            if [ ! -f "/opt/apache-maven-3.9.3/bin/mvn" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            if [ ! -f "/opt/go1.18.9/go/bin/go" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if ! dpkg -s "$pkg" >/dev/null 2>/dev/null; then
+            missing="$pkg $missing"
+        fi
+    done
+    if [ "$missing" != "" ]; then
+        echo "MISSING PACKAGES: $missing"
+        exit 1
+    fi
+}
+
+install() {
+    cd "$DIR"
+    export DEBIAN_FRONTEND=noninteractive
+    apt update -y
+    apt install -y wget
+    # If GitHub Actions runner is installed, append LANG to the environment.
+    # Python related tests doesn't work the LANG export.
+    if [ -d "/home/gh/actions-runner" ]; then
+        echo "LANG=en_US.utf8" >> /home/gh/actions-runner/.env
+    else
+        echo "NOTE: export LANG=en_US.utf8"
+    fi
+
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            install_custom_maven "3.9.3"
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            install_custom_golang "1.18.9"
+            continue
+        fi
+        if [ "$pkg" == dotnet-sdk-3.1 ]; then
+            if ! dpkg -s dotnet-sdk-3.1 2>/dev/null >/dev/null; then
+                wget -nv https://packages.microsoft.com/config/ubuntu/20.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
+                dpkg -i packages-microsoft-prod.deb
+                apt-get update
+                apt-get install -y apt-transport-https dotnet-sdk-3.1
+            fi
+            continue
+        fi
+        if [ "$pkg" == openjdk-17-jdk-headless ]; then
+            if ! dpkg -s "$pkg" 2>/dev/null >/dev/null; then
+                apt install -y "$pkg"
+                # The default Java version should be Java 11
+                update-alternatives --set java /usr/lib/jvm/java-11-openjdk-amd64/bin/java
+                update-alternatives --set javac /usr/lib/jvm/java-11-openjdk-amd64/bin/javac
+            fi
+            continue
+        fi
+        apt install -y "$pkg"
+    done
+}
+
+deps=$2"[*]"
+"$1" "${!deps}"

environment/os/ubuntu-22.04-arm.sh

@@ -0,0 +1,144 @@
+#!/bin/bash
+
+set -Eeuo pipefail
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+source "$DIR/../util.sh"
+
+check_operating_system "ubuntu-22.04"
+check_architecture "arm64" "aarch64"
+
+TOOLCHAIN_BUILD_DEPS=(
+    coreutils gcc g++ build-essential make # generic build tools
+    wget # used for archive download
+    gnupg # used for archive signature verification
+    tar gzip bzip2 xz-utils unzip # used for archive unpacking
+    zlib1g-dev # zlib library used for all builds
+    libexpat1-dev libbabeltrace-dev liblzma-dev python3-dev texinfo # for gdb
+    libcurl4-openssl-dev # for cmake
+    libreadline-dev # for cmake and llvm
+    libffi-dev libxml2-dev # for llvm
+    curl # snappy
+    file
+    git # for thrift
+    libgmp-dev # for gdb
+    gperf # for proxygen
+    libssl-dev
+    libedit-dev libpcre2-dev libpcre3-dev automake bison # for swig
+)
+
+TOOLCHAIN_RUN_DEPS=(
+    make # generic build tools
+    tar gzip bzip2 xz-utils # used for archive unpacking
+    zlib1g # zlib library used for all builds
+    libexpat1 libbabeltrace1 liblzma5 python3 # for gdb
+    libcurl4 # for cmake
+    libreadline8 # for cmake and llvm
+    libffi7 libxml2 # for llvm
+    libssl-dev # for libevent
+)
+
+MEMGRAPH_BUILD_DEPS=(
+    git # source code control
+    make cmake pkg-config # build system
+    curl wget # for downloading libs
+    uuid-dev default-jre-headless # required by antlr
+    libreadline-dev # for memgraph console
+    libpython3-dev python3-dev # for query modules
+    libssl-dev
+    libseccomp-dev
+    netcat # tests are using nc to wait for memgraph
+    python3 python3-virtualenv python3-pip # for qa, macro_benchmark and stress tests
+    python3-yaml # for the configuration generator
+    libcurl4-openssl-dev # mg-requests
+    sbcl # for custom Lisp C++ preprocessing
+    doxygen graphviz # source documentation generators
+    mono-runtime mono-mcs zip unzip default-jdk-headless openjdk-17-jdk-headless custom-maven3.9.3 # for driver tests
+    dotnet-sdk-6.0 golang custom-golang1.18.9 nodejs npm
+    autoconf # for jemalloc code generation
+    libtool  # for protobuf code generation
+    libsasl2-dev
+)
+
+MEMGRAPH_RUN_DEPS=(
+    logrotate openssl python3 libseccomp2
+)
+
+NEW_DEPS=(
+    wget curl tar gzip
+)
+
+list() {
+    echo "$1"
+}
+
+check() {
+    local missing=""
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            if [ ! -f "/opt/apache-maven-3.9.3/bin/mvn" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            if [ ! -f "/opt/go1.18.9/go/bin/go" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if ! dpkg -s "$pkg" >/dev/null 2>/dev/null; then
+            missing="$pkg $missing"
+        fi
+    done
+    if [ "$missing" != "" ]; then
+        echo "MISSING PACKAGES: $missing"
+        exit 1
+    fi
+}
+
+install() {
+    cd "$DIR"
+    apt update
+    # If GitHub Actions runner is installed, append LANG to the environment.
+    # Python related tests doesn't work the LANG export.
+    if [ -d "/home/gh/actions-runner" ]; then
+        echo "LANG=en_US.utf8" >> /home/gh/actions-runner/.env
+    else
+        echo "NOTE: export LANG=en_US.utf8"
+    fi
+    apt install -y wget
+
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            install_custom_maven "3.9.3"
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            install_custom_golang "1.18.9"
+            continue
+        fi
+        if [ "$pkg" == dotnet-sdk-6.0 ]; then
+            if ! dpkg -s dotnet-sdk-6.0 2>/dev/null >/dev/null; then
+                wget -nv https://packages.microsoft.com/config/ubuntu/22.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
+                dpkg -i packages-microsoft-prod.deb
+                apt-get update
+                apt-get install -y apt-transport-https dotnet-sdk-6.0
+            fi
+            continue
+        fi
+        if [ "$pkg" == openjdk-17-jdk-headless ]; then
+            if ! dpkg -s "$pkg" 2>/dev/null >/dev/null; then
+                apt install -y "$pkg"
+                # The default Java version should be Java 11
+                update-alternatives --set java /usr/lib/jvm/java-11-openjdk-arm64/bin/java
+                update-alternatives --set javac /usr/lib/jvm/java-11-openjdk-arm64/bin/javac
+            fi
+            continue
+        fi
+        apt install -y "$pkg"
+    done
+}
+
+deps=$2"[*]"
+"$1" "${!deps}"

environment/os/ubuntu-22.04.sh

@@ -0,0 +1,144 @@
+#!/bin/bash
+
+set -Eeuo pipefail
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+source "$DIR/../util.sh"
+
+check_operating_system "ubuntu-22.04"
+check_architecture "x86_64"
+
+TOOLCHAIN_BUILD_DEPS=(
+    coreutils gcc g++ build-essential make # generic build tools
+    wget # used for archive download
+    gnupg # used for archive signature verification
+    tar gzip bzip2 xz-utils unzip # used for archive unpacking
+    zlib1g-dev # zlib library used for all builds
+    libexpat1-dev libipt-dev libbabeltrace-dev liblzma-dev python3-dev texinfo # for gdb
+    libcurl4-openssl-dev # for cmake
+    libreadline-dev # for cmake and llvm
+    libffi-dev libxml2-dev # for llvm
+    curl # snappy
+    file
+    git # for thrift
+    libgmp-dev # for gdb
+    gperf # for proxygen
+    libssl-dev
+    libedit-dev libpcre2-dev libpcre3-dev automake bison # for swig
+)
+
+TOOLCHAIN_RUN_DEPS=(
+    make # generic build tools
+    tar gzip bzip2 xz-utils # used for archive unpacking
+    zlib1g # zlib library used for all builds
+    libexpat1 libipt2 libbabeltrace1 liblzma5 python3 # for gdb
+    libcurl4 # for cmake
+    libreadline8 # for cmake and llvm
+    libffi7 libxml2 # for llvm
+    libssl-dev # for libevent
+)
+
+MEMGRAPH_BUILD_DEPS=(
+    git # source code control
+    make cmake pkg-config # build system
+    curl wget # for downloading libs
+    uuid-dev default-jre-headless # required by antlr
+    libreadline-dev # for memgraph console
+    libpython3-dev python3-dev # for query modules
+    libssl-dev
+    libseccomp-dev
+    netcat # tests are using nc to wait for memgraph
+    python3 python3-virtualenv python3-pip # for qa, macro_benchmark and stress tests
+    python3-yaml # for the configuration generator
+    libcurl4-openssl-dev # mg-requests
+    sbcl # for custom Lisp C++ preprocessing
+    doxygen graphviz # source documentation generators
+    mono-runtime mono-mcs zip unzip default-jdk-headless openjdk-17-jdk-headless custom-maven3.9.3 # for driver tests
+    dotnet-sdk-6.0 golang custom-golang1.18.9 nodejs npm # for driver tests
+    autoconf # for jemalloc code generation
+    libtool  # for protobuf code generation
+    libsasl2-dev
+)
+
+MEMGRAPH_RUN_DEPS=(
+    logrotate openssl python3 libseccomp2
+)
+
+NEW_DEPS=(
+    wget curl tar gzip
+)
+
+list() {
+    echo "$1"
+}
+
+check() {
+    local missing=""
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            if [ ! -f "/opt/apache-maven-3.9.3/bin/mvn" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            if [ ! -f "/opt/go1.18.9/go/bin/go" ]; then
+              missing="$pkg $missing"
+            fi
+            continue
+        fi
+        if ! dpkg -s "$pkg" >/dev/null 2>/dev/null; then
+            missing="$pkg $missing"
+        fi
+    done
+    if [ "$missing" != "" ]; then
+        echo "MISSING PACKAGES: $missing"
+        exit 1
+    fi
+}
+
+install() {
+    cd "$DIR"
+    apt update -y
+    apt install -y wget
+    # If GitHub Actions runner is installed, append LANG to the environment.
+    # Python related tests doesn't work the LANG export.
+    if [ -d "/home/gh/actions-runner" ]; then
+        echo "LANG=en_US.utf8" >> /home/gh/actions-runner/.env
+    else
+        echo "NOTE: export LANG=en_US.utf8"
+    fi
+
+    for pkg in $1; do
+        if [ "$pkg" == custom-maven3.9.3 ]; then
+            install_custom_maven "3.9.3"
+            continue
+        fi
+        if [ "$pkg" == custom-golang1.18.9 ]; then
+            install_custom_golang "1.18.9"
+            continue
+        fi
+        if [ "$pkg" == dotnet-sdk-6.0 ]; then
+            if ! dpkg -s dotnet-sdk-6.0 2>/dev/null >/dev/null; then
+                wget -nv https://packages.microsoft.com/config/ubuntu/22.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
+                dpkg -i packages-microsoft-prod.deb
+                apt-get update
+                apt-get install -y apt-transport-https dotnet-sdk-6.0
+            fi
+            continue
+        fi
+        if [ "$pkg" == openjdk-17-jdk-headless ]; then
+            if ! dpkg -s "$pkg" 2>/dev/null >/dev/null; then
+                apt install -y "$pkg"
+                # The default Java version should be Java 11
+                update-alternatives --set java /usr/lib/jvm/java-11-openjdk-amd64/bin/java
+                update-alternatives --set javac /usr/lib/jvm/java-11-openjdk-amd64/bin/javac
+            fi
+            continue
+        fi
+        apt install -y "$pkg"
+    done
+}
+
+deps=$2"[*]"
+"$1" "${!deps}"

environment/toolchain/.gitignore

@@ -0,0 +1,4 @@
+archives
+build
+output
+*.tar.gz

environment/toolchain/v1/build.sh

@@ -0,0 +1,651 @@
+#!/bin/bash -e
+
+# helpers
+pushd () { command pushd "$@" > /dev/null; }
+popd () { command popd "$@" > /dev/null; }
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+CPUS=$( cat /proc/cpuinfo | grep processor | wc -l )
+cd "$DIR"
+
+# toolchain version
+TOOLCHAIN_VERSION=1
+
+# package versions used
+GCC_VERSION=8.3.0
+BINUTILS_VERSION=2.32
+GDB_VERSION=8.2.1
+CMAKE_VERSION=3.14.2
+CPPCHECK_VERSION=1.87
+LLVM_VERSION=8.0.0
+SWIG_VERSION=3.0.12 # used only for LLVM compilation
+
+# check for installed dependencies
+DISTRO="$( egrep '^(VERSION_)?ID=' /etc/os-release | sort | cut -d '=' -f 2- | sed 's/"//g' | paste -s -d '-' )"
+case "$DISTRO" in
+    debian-9)
+        DEPS_MANAGER=apt-get
+        DEPS_COMPILE=(
+            coreutils gcc g++ build-essential make # generic build tools
+            wget # used for archive download
+            gnupg # used for archive signature verification
+            tar gzip bzip2 xz-utils unzip # used for archive unpacking
+            zlib1g-dev # zlib library used for all builds
+            libexpat1-dev libipt-dev libbabeltrace-dev libbabeltrace-ctf-dev liblzma-dev python3-dev texinfo # for gdb
+            libcurl4-openssl-dev # for cmake
+            libreadline-dev # for cmake and llvm
+            libffi-dev libxml2-dev # for llvm
+            libedit-dev libpcre3-dev automake bison # for swig
+        )
+        DEPS_RUN=(
+            make # generic build tools
+            tar gzip bzip2 xz-utils # used for archive unpacking
+            zlib1g # zlib library used for all builds
+            libexpat1 libipt1 libbabeltrace1 libbabeltrace-ctf1 liblzma5 python3 # for gdb
+            libcurl3 # for cmake
+            libreadline7 # for cmake and llvm
+            libffi6 libxml2 # for llvm
+        )
+        ;;
+
+    debian-10)
+        DEPS_MANAGER=apt-get
+        DEPS_COMPILE=(
+            coreutils gcc g++ build-essential make # generic build tools
+            wget # used for archive download
+            gnupg # used for archive signature verification
+            tar gzip bzip2 xz-utils unzip # used for archive unpacking
+            zlib1g-dev # zlib library used for all builds
+            libexpat1-dev libipt-dev libbabeltrace-dev liblzma-dev python3-dev texinfo # for gdb
+            libcurl4-openssl-dev # for cmake
+            libreadline-dev # for cmake and llvm
+            libffi-dev libxml2-dev # for llvm
+            libedit-dev libpcre3-dev automake bison # for swig
+        )
+        DEPS_RUN=(
+            make # generic build tools
+            tar gzip bzip2 xz-utils # used for archive unpacking
+            zlib1g # zlib library used for all builds
+            libexpat1 libipt2 libbabeltrace1 liblzma5 python3 # for gdb
+            libcurl4 # for cmake
+            libreadline7 # for cmake and llvm
+            libffi6 libxml2 # for llvm
+        )
+        ;;
+
+    ubuntu-18.04)
+        DEPS_MANAGER=apt-get
+        DEPS_COMPILE=(
+            coreutils gcc g++ build-essential make # generic build tools
+            wget # used for archive download
+            gnupg # used for archive signature verification
+            tar gzip bzip2 xz-utils unzip # used for archive unpacking
+            zlib1g-dev # zlib library used for all builds
+            libexpat1-dev libipt-dev libbabeltrace-dev liblzma-dev python3-dev texinfo # for gdb
+            libcurl4-openssl-dev # for cmake
+            libreadline-dev # for cmake and llvm
+            libffi-dev libxml2-dev # for llvm
+            libedit-dev libpcre3-dev automake bison # for swig
+        )
+        DEPS_RUN=(
+            make # generic build tools
+            tar gzip bzip2 xz-utils # used for archive unpacking
+            zlib1g # zlib library used for all builds
+            libexpat1 libipt1 libbabeltrace1 liblzma5 python3 # for gdb
+            libcurl4 # for cmake
+            libreadline7 # for cmake and llvm
+            libffi6 libxml2 # for llvm
+        )
+        ;;
+
+    centos-7)
+        DEPS_MANAGER=yum
+        DEPS_COMPILE=(
+            coreutils gcc gcc-c++ make # generic build tools
+            wget # used for archive download
+            gnupg2 # used for archive signature verification
+            tar gzip bzip2 xz unzip # used for archive unpacking
+            zlib-devel # zlib library used for all builds
+            expat-devel libipt-devel libbabeltrace-devel xz-devel python3-devel texinfo # for gdb
+            libcurl-devel # for cmake
+            readline-devel # for cmake and llvm
+            libffi-devel libxml2-devel # for llvm
+            libedit-devel pcre-devel automake bison # for swig
+        )
+        DEPS_RUN=(
+            make # generic build tools
+            tar gzip bzip2 xz # used for archive unpacking
+            zlib # zlib library used for all builds
+            expat libipt libbabeltrace xz-libs python3 # for gdb
+            readline # for cmake and llvm
+            libffi libxml2 # for llvm
+        )
+        ;;
+
+    *)
+        echo "Unknown distribution: $DISTRO!"
+        exit 1
+        ;;
+esac
+find_missing_dependencies () {
+    local message="$1"; shift
+    local missing=""
+    while [ "$1" != "" ]; do
+        if [ "$DEPS_MANAGER" == "apt-get" ]; then
+            if ! dpkg -s $1 >/dev/null 2>/dev/null; then
+                missing="$1 $missing"
+            fi
+        elif [ "$DEPS_MANAGER" == "yum" ]; then
+            if ! yum list installed $1 >/dev/null 2>/dev/null; then
+                missing="$1 $missing"
+            fi
+        else
+            echo "Invalid package manager: $DEPS_MANAGER!"
+            exit 1
+        fi
+        shift
+    done
+    if [ "$missing" != "" ]; then
+        echo "$message: $missing"
+        exit 1
+    fi
+}
+find_missing_dependencies "Missing dependencies" ${DEPS_COMPILE[@]}
+find_missing_dependencies "All dependencies are installed, but the following runtime libraries were not found (they are probably invalid)" ${DEPS_RUN[@]}
+
+# check installation directory
+NAME=toolchain-v$TOOLCHAIN_VERSION
+PREFIX=/opt/$NAME
+mkdir -p $PREFIX >/dev/null 2>/dev/null || true
+if [ ! -d $PREFIX ] || [ ! -w $PREFIX ]; then
+    echo "Please make sure that the directory '$PREFIX' exists and is writable by the current user!"
+    echo
+    echo "If unsure, execute these commands as root:"
+    echo "    mkdir $PREFIX && chown $USER:$USER $PREFIX"
+    echo
+    echo "Press <return> when you have created the directory and granted permissions."
+    # wait for the directory to be created
+    while true; do
+        read
+        if [ ! -d $PREFIX ] || [ ! -w $PREFIX ]; then
+            echo
+            echo "You can't continue before you have created the directory and granted permissions!"
+            echo
+            echo "Press <return> when you have created the directory and granted permissions."
+        else
+            break
+        fi
+    done
+fi
+
+# create archives directory
+mkdir -p archives
+
+# download all archives
+pushd archives
+if [ ! -f gcc-$GCC_VERSION.tar.gz ]; then
+    wget https://ftp.gnu.org/gnu/gcc/gcc-$GCC_VERSION/gcc-$GCC_VERSION.tar.gz
+fi
+if [ ! -f binutils-$BINUTILS_VERSION.tar.gz ]; then
+    wget https://ftp.gnu.org/gnu/binutils/binutils-$BINUTILS_VERSION.tar.gz
+fi
+if [ ! -f gdb-$GDB_VERSION.tar.gz ]; then
+    wget https://ftp.gnu.org/gnu/gdb/gdb-$GDB_VERSION.tar.gz
+fi
+if [ ! -f cmake-$CMAKE_VERSION.tar.gz ]; then
+    wget https://github.com/Kitware/CMake/releases/download/v$CMAKE_VERSION/cmake-$CMAKE_VERSION.tar.gz
+fi
+if [ ! -f swig-$SWIG_VERSION.tar.gz ]; then
+    wget https://github.com/swig/swig/archive/rel-$SWIG_VERSION.tar.gz -O swig-$SWIG_VERSION.tar.gz
+fi
+if [ ! -f cppcheck-$CPPCHECK_VERSION.tar.gz ]; then
+    wget https://github.com/danmar/cppcheck/archive/$CPPCHECK_VERSION.tar.gz -O cppcheck-$CPPCHECK_VERSION.tar.gz
+fi
+if [ ! -f llvm-$LLVM_VERSION.src.tar.xz ]; then
+    wget https://releases.llvm.org/$LLVM_VERSION/llvm-$LLVM_VERSION.src.tar.xz
+    wget https://releases.llvm.org/$LLVM_VERSION/cfe-$LLVM_VERSION.src.tar.xz
+    wget https://releases.llvm.org/$LLVM_VERSION/lld-$LLVM_VERSION.src.tar.xz
+    wget https://releases.llvm.org/$LLVM_VERSION/compiler-rt-$LLVM_VERSION.src.tar.xz
+    wget https://releases.llvm.org/$LLVM_VERSION/clang-tools-extra-$LLVM_VERSION.src.tar.xz
+fi
+if [ ! -f pahole-gdb-master.zip ]; then
+    wget https://github.com/PhilArmstrong/pahole-gdb/archive/master.zip -O pahole-gdb-master.zip
+fi
+
+# verify all archives
+# NOTE: Verification can fail if the archive is signed by another developer. I
+# haven't added commands to download all developer GnuPG keys because the
+# download is very slow. If the verification fails for you, figure out who has
+# signed the archive and download their public key instead.
+GPG="gpg --homedir .gnupg"
+KEYSERVER="hkp://keyserver.ubuntu.com"
+mkdir -p .gnupg
+chmod 700 .gnupg
+# verify gcc
+if [ ! -f gcc-$GCC_VERSION.tar.gz.sig ]; then
+    wget https://ftp.gnu.org/gnu/gcc/gcc-$GCC_VERSION/gcc-$GCC_VERSION.tar.gz.sig
+fi
+# list of valid gcc gnupg keys: https://gcc.gnu.org/mirrors.html
+$GPG --keyserver $KEYSERVER --recv-keys 0xA328C3A2C3C45C06
+$GPG --verify gcc-$GCC_VERSION.tar.gz.sig gcc-$GCC_VERSION.tar.gz
+# verify binutils
+if [ ! -f binutils-$BINUTILS_VERSION.tar.gz.sig ]; then
+    wget https://ftp.gnu.org/gnu/binutils/binutils-$BINUTILS_VERSION.tar.gz.sig
+fi
+$GPG --keyserver $KEYSERVER --recv-keys 0xDD9E3C4F
+$GPG --verify binutils-$BINUTILS_VERSION.tar.gz.sig binutils-$BINUTILS_VERSION.tar.gz
+# verify gdb
+if [ ! -f gdb-$GDB_VERSION.tar.gz.sig ]; then
+    wget https://ftp.gnu.org/gnu/gdb/gdb-$GDB_VERSION.tar.gz.sig
+fi
+$GPG --keyserver $KEYSERVER --recv-keys 0xFF325CF3
+$GPG --verify gdb-$GDB_VERSION.tar.gz.sig gdb-$GDB_VERSION.tar.gz
+# verify cmake
+if [ ! -f cmake-$CMAKE_VERSION-SHA-256.txt ] || [ ! -f cmake-$CMAKE_VERSION-SHA-256.txt.asc ]; then
+    wget https://github.com/Kitware/CMake/releases/download/v$CMAKE_VERSION/cmake-$CMAKE_VERSION-SHA-256.txt
+    wget https://github.com/Kitware/CMake/releases/download/v$CMAKE_VERSION/cmake-$CMAKE_VERSION-SHA-256.txt.asc
+    # Because CentOS 7 doesn't have the `--ignore-missing` flag for `sha256sum`
+    # we filter out the missing files from the sums here manually.
+    cat cmake-$CMAKE_VERSION-SHA-256.txt | grep "cmake-$CMAKE_VERSION.tar.gz" > cmake-$CMAKE_VERSION-SHA-256-filtered.txt
+fi
+$GPG --keyserver $KEYSERVER --recv-keys 0xC6C265324BBEBDC350B513D02D2CEF1034921684
+sha256sum -c cmake-$CMAKE_VERSION-SHA-256-filtered.txt
+$GPG --verify cmake-$CMAKE_VERSION-SHA-256.txt.asc cmake-$CMAKE_VERSION-SHA-256.txt
+# verify llvm, cfe, lld, clang-tools-extra
+if [ ! -f llvm-$LLVM_VERSION.src.tar.xz.sig ]; then
+    wget https://releases.llvm.org/$LLVM_VERSION/llvm-$LLVM_VERSION.src.tar.xz.sig
+    wget https://releases.llvm.org/$LLVM_VERSION/cfe-$LLVM_VERSION.src.tar.xz.sig
+    wget https://releases.llvm.org/$LLVM_VERSION/lld-$LLVM_VERSION.src.tar.xz.sig
+    wget https://releases.llvm.org/$LLVM_VERSION/compiler-rt-$LLVM_VERSION.src.tar.xz.sig
+    wget https://releases.llvm.org/$LLVM_VERSION/clang-tools-extra-$LLVM_VERSION.src.tar.xz.sig
+fi
+# list of valid llvm gnupg keys: https://releases.llvm.org/download.html
+$GPG --keyserver $KEYSERVER --recv-keys 0x345AD05D
+$GPG --verify llvm-$LLVM_VERSION.src.tar.xz.sig llvm-$LLVM_VERSION.src.tar.xz
+$GPG --verify cfe-$LLVM_VERSION.src.tar.xz.sig cfe-$LLVM_VERSION.src.tar.xz
+$GPG --verify lld-$LLVM_VERSION.src.tar.xz.sig lld-$LLVM_VERSION.src.tar.xz
+$GPG --verify compiler-rt-$LLVM_VERSION.src.tar.xz.sig compiler-rt-$LLVM_VERSION.src.tar.xz
+$GPG --verify clang-tools-extra-$LLVM_VERSION.src.tar.xz.sig clang-tools-extra-$LLVM_VERSION.src.tar.xz
+popd
+
+# create build directory
+mkdir -p build
+pushd build
+
+# compile gcc
+if [ ! -f $PREFIX/bin/gcc ]; then
+    if [ -d gcc-$GCC_VERSION ]; then
+        rm -rf gcc-$GCC_VERSION
+    fi
+    tar -xvf ../archives/gcc-$GCC_VERSION.tar.gz
+    pushd gcc-$GCC_VERSION
+    ./contrib/download_prerequisites
+    mkdir build && pushd build
+    # influenced by: https://buildd.debian.org/status/fetch.php?pkg=gcc-8&arch=amd64&ver=8.3.0-6&stamp=1554588545
+    ../configure -v \
+        --build=x86_64-linux-gnu \
+        --host=x86_64-linux-gnu \
+        --target=x86_64-linux-gnu \
+        --prefix=$PREFIX \
+        --disable-multilib \
+        --with-system-zlib \
+        --enable-checking=release \
+        --enable-languages=c,c++,fortran \
+        --enable-gold=yes \
+        --enable-ld=yes \
+        --enable-lto \
+        --enable-bootstrap \
+        --disable-vtable-verify \
+        --disable-werror \
+        --without-included-gettext \
+        --enable-threads=posix \
+        --enable-nls \
+        --enable-clocale=gnu \
+        --enable-libstdcxx-debug \
+        --enable-libstdcxx-time=yes \
+        --enable-gnu-unique-object \
+        --enable-libmpx \
+        --enable-plugin \
+        --enable-default-pie \
+        --with-target-system-zlib \
+        --with-tune=generic \
+        --without-cuda-driver
+        #--program-suffix=$( printf "$GCC_VERSION" | cut -d '.' -f 1,2 ) \
+    make -j$CPUS
+    # make -k check # run test suite
+    make install
+    popd && popd
+fi
+
+# activate toolchain
+export PATH=$PREFIX/bin:$PATH
+export LD_LIBRARY_PATH=$PREFIX/lib64
+
+# compile binutils
+if [ ! -f $PREFIX/bin/ld.gold ]; then
+    if [ -d binutils-$BINUTILS_VERSION ]; then
+        rm -rf binutils-$BINUTILS_VERSION
+    fi
+    tar -xvf ../archives/binutils-$BINUTILS_VERSION.tar.gz
+    pushd binutils-$BINUTILS_VERSION
+    mkdir build && pushd build
+    # influenced by: https://buildd.debian.org/status/fetch.php?pkg=binutils&arch=amd64&ver=2.32-7&stamp=1553247092
+    env \
+        CC=gcc \
+        CXX=g++ \
+        CFLAGS="-g -O2" \
+        CXXFLAGS="-g -O2" \
+        LDFLAGS="" \
+        ../configure \
+            --build=x86_64-linux-gnu \
+            --host=x86_64-linux-gnu \
+            --prefix=$PREFIX \
+            --enable-ld=default \
+            --enable-gold \
+            --enable-lto \
+            --enable-plugins \
+            --enable-shared \
+            --enable-threads \
+            --with-system-zlib \
+            --enable-deterministic-archives \
+            --disable-compressed-debug-sections \
+            --enable-new-dtags \
+            --disable-werror
+    make -j$CPUS
+    # make -k check # run test suite
+    make install
+    popd && popd
+fi
+
+# compile gdb
+if [ ! -f $PREFIX/bin/gdb ]; then
+    if [ -d gdb-$GDB_VERSION ]; then
+        rm -rf gdb-$GDB_VERSION
+    fi
+    tar -xvf ../archives/gdb-$GDB_VERSION.tar.gz
+    pushd gdb-$GDB_VERSION
+    mkdir build && pushd build
+    # https://buildd.debian.org/status/fetch.php?pkg=gdb&arch=amd64&ver=8.2.1-2&stamp=1550831554&raw=0
+    env \
+        CC=gcc \
+        CXX=g++ \
+        CFLAGS="-g -O2 -fstack-protector-strong -Wformat -Werror=format-security" \
+        CXXFLAGS="-g -O2 -fstack-protector-strong -Wformat -Werror=format-security" \
+        CPPFLAGS="-Wdate-time -D_FORTIFY_SOURCE=2 -fPIC" \
+        LDFLAGS="-Wl,-z,relro" \
+        PYTHON="" \
+        ../configure \
+            --build=x86_64-linux-gnu \
+            --host=x86_64-linux-gnu \
+            --prefix=$PREFIX \
+            --disable-maintainer-mode \
+            --disable-dependency-tracking \
+            --disable-silent-rules \
+            --disable-gdbtk \
+            --disable-shared \
+            --without-guile \
+            --with-system-gdbinit=$PREFIX/etc/gdb/gdbinit \
+            --with-system-readline \
+            --with-expat \
+            --with-system-zlib \
+            --with-lzma \
+            --with-babeltrace \
+            --with-intel-pt \
+            --enable-tui \
+            --with-python=python3
+    make -j$CPUS
+    make install
+    popd && popd
+fi
+
+# install pahole
+if [ ! -d $PREFIX/share/pahole-gdb ]; then
+    unzip ../archives/pahole-gdb-master.zip
+    mv pahole-gdb-master $PREFIX/share/pahole-gdb
+fi
+
+# setup system gdbinit
+if [ ! -f $PREFIX/etc/gdb/gdbinit ]; then
+    mkdir -p $PREFIX/etc/gdb
+    cat >$PREFIX/etc/gdb/gdbinit <<EOF
+# improve formatting
+set print pretty on
+set print object on
+set print static-members on
+set print vtbl on
+set print demangle on
+set demangle-style gnu-v3
+set print sevenbit-strings off
+
+# load libstdc++ pretty printers
+add-auto-load-scripts-directory $PREFIX/lib64
+add-auto-load-safe-path $PREFIX
+
+# load pahole
+python
+sys.path.insert(0, "$PREFIX/share/pahole-gdb")
+import offsets
+import pahole
+end
+EOF
+fi
+
+# compile cmake
+if [ ! -f $PREFIX/bin/cmake ]; then
+    if [ -d cmake-$CMAKE_VERSION ]; then
+        rm -rf cmake-$CMAKE_VERSION
+    fi
+    tar -xvf ../archives/cmake-$CMAKE_VERSION.tar.gz
+    pushd cmake-$CMAKE_VERSION
+    # influenced by: https://buildd.debian.org/status/fetch.php?pkg=cmake&arch=amd64&ver=3.13.4-1&stamp=1549799837
+    echo 'set(CMAKE_SKIP_RPATH ON CACHE BOOL "Skip rpath" FORCE)' >> build-flags.cmake
+    echo 'set(CMAKE_USE_RELATIVE_PATHS ON CACHE BOOL "Use relative paths" FORCE)' >> build-flags.cmake
+    echo 'set(CMAKE_C_FLAGS "-g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2" CACHE STRING "C flags" FORCE)' >> build-flags.cmake
+    echo 'set(CMAKE_CXX_FLAGS "-g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2" CACHE STRING "C++ flags" FORCE)' >> build-flags.cmake
+    echo 'set(CMAKE_SKIP_BOOTSTRAP_TEST ON CACHE BOOL "Skip BootstrapTest" FORCE)' >> build-flags.cmake
+    echo 'set(BUILD_CursesDialog ON CACHE BOOL "Build curses GUI" FORCE)' >> build-flags.cmake
+    mkdir build && pushd build
+    ../bootstrap \
+        --prefix=$PREFIX \
+        --init=../build-flags.cmake \
+        --parallel=$CPUS \
+        --system-curl
+    make -j$CPUS
+    # make test # run test suite
+    make install
+    popd && popd
+fi
+
+# compile cppcheck
+if [ ! -f $PREFIX/bin/cppcheck ]; then
+    if [ -d cppcheck-$CPPCHECK_VERSION ]; then
+        rm -rf cppcheck-$CPPCHECK_VERSION
+    fi
+    tar -xvf ../archives/cppcheck-$CPPCHECK_VERSION.tar.gz
+    pushd cppcheck-$CPPCHECK_VERSION
+    env \
+        CC=gcc \
+        CXX=g++ \
+        PREFIX=$PREFIX \
+        CFGDIR=$PREFIX/share/cppcheck/cfg \
+            make -j$CPUS
+    env \
+        CC=gcc \
+        CXX=g++ \
+        PREFIX=$PREFIX \
+        CFGDIR=$PREFIX/share/cppcheck/cfg \
+            make install
+    popd
+fi
+
+# compile swig
+if [ ! -d swig-$SWIG_VERSION/install ]; then
+    if [ -d swig-$SWIG_VERSION ]; then
+        rm -rf swig-$SWIG_VERSION
+    fi
+    tar -xvf ../archives/swig-$SWIG_VERSION.tar.gz
+    mv swig-rel-$SWIG_VERSION swig-$SWIG_VERSION
+    pushd swig-$SWIG_VERSION
+    ./autogen.sh
+    mkdir build && pushd build
+    ../configure --prefix=$DIR/build/swig-$SWIG_VERSION/install
+    make -j$CPUS
+    make install
+    popd && popd
+fi
+
+# compile llvm
+if [ ! -f $PREFIX/bin/clang ]; then
+    if [ -d llvm-$LLVM_VERSION ]; then
+        rm -rf llvm-$LLVM_VERSION
+    fi
+    tar -xvf ../archives/llvm-$LLVM_VERSION.src.tar.xz
+    mv llvm-$LLVM_VERSION.src llvm-$LLVM_VERSION
+    tar -xvf ../archives/cfe-$LLVM_VERSION.src.tar.xz
+    mv cfe-$LLVM_VERSION.src llvm-$LLVM_VERSION/tools/clang
+    tar -xvf ../archives/lld-$LLVM_VERSION.src.tar.xz
+    mv lld-$LLVM_VERSION.src/ llvm-$LLVM_VERSION/tools/lld
+    tar -xvf ../archives/compiler-rt-$LLVM_VERSION.src.tar.xz
+    mv compiler-rt-$LLVM_VERSION.src/ llvm-$LLVM_VERSION/projects/compiler-rt
+    tar -xvf ../archives/clang-tools-extra-$LLVM_VERSION.src.tar.xz
+    mv clang-tools-extra-$LLVM_VERSION.src/ llvm-$LLVM_VERSION/tools/clang/tools/extra
+    pushd llvm-$LLVM_VERSION
+    mkdir build && pushd build
+    # activate swig
+    export PATH=$DIR/build/swig-$SWIG_VERSION/install/bin:$PATH
+    # influenced by: https://buildd.debian.org/status/fetch.php?pkg=llvm-toolchain-7&arch=amd64&ver=1%3A7.0.1%7E%2Brc2-1%7Eexp1&stamp=1541506173&raw=0
+    cmake .. \
+        -DGCC_INSTALL_PREFIX=$PREFIX \
+        -DCMAKE_C_COMPILER=$PREFIX/bin/gcc \
+        -DCMAKE_CXX_COMPILER=$PREFIX/bin/g++ \
+        -DCMAKE_CXX_LINK_FLAGS="-L$PREFIX/lib64 -Wl,-rpath,$PREFIX/lib64" \
+        -DCMAKE_INSTALL_PREFIX=$PREFIX \
+        -DCMAKE_BUILD_TYPE=RelWithDebInfo \
+        -DCMAKE_CXX_FLAGS_RELWITHDEBINFO="-O2 -DNDEBUG" \
+        -DCMAKE_CXX_FLAGS=' -fuse-ld=gold -fPIC -Wno-unused-command-line-argument -Wno-unknown-warning-option' \
+        -DCMAKE_C_FLAGS=' -fuse-ld=gold -fPIC -Wno-unused-command-line-argument -Wno-unknown-warning-option' \
+        -DLLVM_LINK_LLVM_DYLIB=ON \
+        -DLLVM_INSTALL_UTILS=ON \
+        -DLLVM_VERSION_SUFFIX= \
+        -DLLVM_BUILD_LLVM_DYLIB=ON \
+        -DLLVM_ENABLE_RTTI=ON \
+        -DLLVM_ENABLE_FFI=ON \
+        -DLLVM_BINUTILS_INCDIR=$PREFIX/include/ \
+        -DLLVM_USE_PERF=yes \
+        -DLIBCLANG_LIBRARY_VERSION=1 \
+        -DCLANG_ENABLE_BOOTSTRAP=ON
+    make -j$CPUS
+    make -j$CPUS check-clang # run clang test suite
+    make -j$CPUS check-lld # run lld test suite
+    make install
+    popd && popd
+fi
+
+# create README
+if [ ! -f $PREFIX/README.md ]; then
+    cat >$PREFIX/README.md <<EOF
+# Memgraph Toolchain v$TOOLCHAIN_VERSION
+
+## Included tools
+
+ - GCC $GCC_VERSION
+ - Binutils $BINUTILS_VERSION
+ - GDB $GDB_VERSION
+ - CMake $CMAKE_VERSION
+ - Cppcheck $CPPCHECK_VERSION
+ - LLVM (Clang, LLD, compiler-rt, Clang tools extra) $LLVM_VERSION
+
+## Required libraries
+
+In order to be able to run all of these tools you should install the following
+packages:
+
+\`\`\`
+$DEPS_MANAGER install ${DEPS_RUN[@]}
+\`\`\`
+
+## Usage
+
+In order to use the toolchain you just have to source the activation script:
+
+\`\`\`
+source $PREFIX/activate
+\`\`\`
+EOF
+fi
+
+# create activation script
+if [ ! -f $PREFIX/activate ]; then
+    cat >$PREFIX/activate <<EOF
+# This file must be used with "source $PREFIX/activate" *from bash*
+# You can't run it directly!
+
+# check for active virtual environments
+if [ "\$( type -t deactivate )" != "" ]; then
+    echo "You already have an active virtual environment!"
+    return 0
+fi
+
+# check that we aren't root
+if [ "\$USER" == "root" ]; then
+    echo "You shouldn't use the toolchan as root!"
+    return 0
+fi
+
+# save original environment
+export ORIG_PATH=\$PATH
+export ORIG_PS1=\$PS1
+export ORIG_LD_LIBRARY_PATH=\$LD_LIBRARY_PATH
+
+# activate new environment
+export PATH=$PREFIX/bin:\$PATH
+export PS1="(TOOLCHAIN) \$PS1"
+export LD_LIBRARY_PATH=$PREFIX/lib:$PREFIX/lib64
+
+# disable root
+function su () {
+    echo "You don't want to use root functions while using the toolchain!"
+    return 1
+}
+function sudo () {
+    echo "You don't want to use root functions while using the toolchain!"
+    return 1
+}
+
+# create deactivation function
+function deactivate() {
+    export PATH=\$ORIG_PATH
+    export PS1=\$ORIG_PS1
+    export LD_LIBRARY_PATH=\$ORIG_LD_LIBRARY_PATH
+    unset ORIG_PATH ORIG_PS1 ORIG_LD_LIBRARY_PATH
+    unset -f su sudo deactivate
+}
+EOF
+fi
+
+# create toolchain archive
+if [ ! -f $NAME-binaries-$DISTRO.tar.gz ]; then
+    tar --owner=root --group=root -cpvzf $NAME-binaries-$DISTRO.tar.gz -C /opt $NAME
+fi
+
+# output final instructions
+echo -e "\n\n"
+echo "All tools have been built. They are installed in '$PREFIX'."
+echo "In order to distribute the tools to someone else, an archive with the toolchain was created in the 'build' directory."
+echo "If you want to install the packed tools you should execute the following command:"
+echo
+echo "    tar -xvzf build/$NAME-binaries.tar.gz -C /opt"
+echo
+echo "Because the tools were built on this machine, you should probably change the permissions of the installation directory using:"
+echo
+echo "    OPTIONAL: chown -R root:root $PREFIX"
+echo
+echo "In order to use all of the newly compiled tools you should use the prepared activation script:"
+echo
+echo "    source $PREFIX/activate"
+echo
+echo "Or, for more advanced uses, you can add the following lines to your script:"
+echo
+echo "    export PATH=$PREFIX/bin:\$PATH"
+echo "    export LD_LIBRARY_PATH=$PREFIX/lib:$PREFIX/lib64"
+echo
+echo "Enjoy!"

environment/toolchain/v2/build.sh

@@ -0,0 +1,533 @@
+#!/bin/bash -e
+
+# helpers
+pushd () { command pushd "$@" > /dev/null; }
+popd () { command popd "$@" > /dev/null; }
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+CPUS=$( grep -c processor < /proc/cpuinfo )
+cd "$DIR"
+
+source "$DIR/../../util.sh"
+DISTRO="$(operating_system)"
+
+# toolchain version
+TOOLCHAIN_VERSION=2
+
+# package versions used
+GCC_VERSION=10.2.0
+BINUTILS_VERSION=2.35.1
+case "$DISTRO" in
+    centos-7) # because GDB >= 9 does NOT compile with readline6.
+        GDB_VERSION=8.3
+    ;;
+    *)
+        GDB_VERSION=10.1
+    ;;
+esac
+CMAKE_VERSION=3.18.4
+CPPCHECK_VERSION=2.2
+LLVM_VERSION=11.0.0
+SWIG_VERSION=4.0.2 # used only for LLVM compilation
+
+# Check for the dependencies.
+echo "ALL BUILD PACKAGES: $($DIR/../../os/$DISTRO.sh list TOOLCHAIN_BUILD_DEPS)"
+$DIR/../../os/$DISTRO.sh check TOOLCHAIN_BUILD_DEPS
+echo "ALL RUN PACKAGES: $($DIR/../../os/$DISTRO.sh list TOOLCHAIN_RUN_DEPS)"
+$DIR/../../os/$DISTRO.sh check TOOLCHAIN_RUN_DEPS
+
+# check installation directory
+NAME=toolchain-v$TOOLCHAIN_VERSION
+PREFIX=/opt/$NAME
+mkdir -p $PREFIX >/dev/null 2>/dev/null || true
+if [ ! -d $PREFIX ] || [ ! -w $PREFIX ]; then
+    echo "Please make sure that the directory '$PREFIX' exists and is writable by the current user!"
+    echo
+    echo "If unsure, execute these commands as root:"
+    echo "    mkdir $PREFIX && chown $USER:$USER $PREFIX"
+    echo
+    echo "Press <return> when you have created the directory and granted permissions."
+    # wait for the directory to be created
+    while true; do
+        read
+        if [ ! -d $PREFIX ] || [ ! -w $PREFIX ]; then
+            echo
+            echo "You can't continue before you have created the directory and granted permissions!"
+            echo
+            echo "Press <return> when you have created the directory and granted permissions."
+        else
+            break
+        fi
+    done
+fi
+
+# create archives directory
+mkdir -p archives
+
+# download all archives
+pushd archives
+if [ ! -f gcc-$GCC_VERSION.tar.gz ]; then
+    wget https://ftp.gnu.org/gnu/gcc/gcc-$GCC_VERSION/gcc-$GCC_VERSION.tar.gz
+fi
+if [ ! -f binutils-$BINUTILS_VERSION.tar.gz ]; then
+    wget https://ftp.gnu.org/gnu/binutils/binutils-$BINUTILS_VERSION.tar.gz
+fi
+if [ ! -f gdb-$GDB_VERSION.tar.gz ]; then
+    wget https://ftp.gnu.org/gnu/gdb/gdb-$GDB_VERSION.tar.gz
+fi
+if [ ! -f cmake-$CMAKE_VERSION.tar.gz ]; then
+    wget https://github.com/Kitware/CMake/releases/download/v$CMAKE_VERSION/cmake-$CMAKE_VERSION.tar.gz
+fi
+if [ ! -f swig-$SWIG_VERSION.tar.gz ]; then
+    wget https://github.com/swig/swig/archive/rel-$SWIG_VERSION.tar.gz -O swig-$SWIG_VERSION.tar.gz
+fi
+if [ ! -f cppcheck-$CPPCHECK_VERSION.tar.gz ]; then
+    wget https://github.com/danmar/cppcheck/archive/$CPPCHECK_VERSION.tar.gz -O cppcheck-$CPPCHECK_VERSION.tar.gz
+fi
+if [ ! -f llvm-$LLVM_VERSION.src.tar.xz ]; then
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION/llvm-$LLVM_VERSION.src.tar.xz
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION/clang-$LLVM_VERSION.src.tar.xz
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION/lld-$LLVM_VERSION.src.tar.xz
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION/clang-tools-extra-$LLVM_VERSION.src.tar.xz
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION/compiler-rt-$LLVM_VERSION.src.tar.xz
+fi
+if [ ! -f pahole-gdb-master.zip ]; then
+    wget https://github.com/PhilArmstrong/pahole-gdb/archive/master.zip -O pahole-gdb-master.zip
+fi
+
+# verify all archives
+# NOTE: Verification can fail if the archive is signed by another developer. I
+# haven't added commands to download all developer GnuPG keys because the
+# download is very slow. If the verification fails for you, figure out who has
+# signed the archive and download their public key instead.
+GPG="gpg --homedir .gnupg"
+KEYSERVER="hkp://keyserver.ubuntu.com"
+mkdir -p .gnupg
+chmod 700 .gnupg
+# verify gcc
+if [ ! -f gcc-$GCC_VERSION.tar.gz.sig ]; then
+    wget https://ftp.gnu.org/gnu/gcc/gcc-$GCC_VERSION/gcc-$GCC_VERSION.tar.gz.sig
+fi
+# list of valid gcc gnupg keys: https://gcc.gnu.org/mirrors.html
+$GPG --keyserver $KEYSERVER --recv-keys 0x3AB00996FC26A641
+$GPG --verify gcc-$GCC_VERSION.tar.gz.sig gcc-$GCC_VERSION.tar.gz
+# verify binutils
+if [ ! -f binutils-$BINUTILS_VERSION.tar.gz.sig ]; then
+    wget https://ftp.gnu.org/gnu/binutils/binutils-$BINUTILS_VERSION.tar.gz.sig
+fi
+$GPG --keyserver $KEYSERVER --recv-keys 0xDD9E3C4F
+$GPG --verify binutils-$BINUTILS_VERSION.tar.gz.sig binutils-$BINUTILS_VERSION.tar.gz
+# verify gdb
+if [ ! -f gdb-$GDB_VERSION.tar.gz.sig ]; then
+    wget https://ftp.gnu.org/gnu/gdb/gdb-$GDB_VERSION.tar.gz.sig
+fi
+$GPG --keyserver $KEYSERVER --recv-keys 0xFF325CF3
+$GPG --verify gdb-$GDB_VERSION.tar.gz.sig gdb-$GDB_VERSION.tar.gz
+# verify cmake
+if [ ! -f cmake-$CMAKE_VERSION-SHA-256.txt ] || [ ! -f cmake-$CMAKE_VERSION-SHA-256.txt.asc ]; then
+    wget https://github.com/Kitware/CMake/releases/download/v$CMAKE_VERSION/cmake-$CMAKE_VERSION-SHA-256.txt
+    wget https://github.com/Kitware/CMake/releases/download/v$CMAKE_VERSION/cmake-$CMAKE_VERSION-SHA-256.txt.asc
+    # Because CentOS 7 doesn't have the `--ignore-missing` flag for `sha256sum`
+    # we filter out the missing files from the sums here manually.
+    cat cmake-$CMAKE_VERSION-SHA-256.txt | grep "cmake-$CMAKE_VERSION.tar.gz" > cmake-$CMAKE_VERSION-SHA-256-filtered.txt
+fi
+$GPG --keyserver $KEYSERVER --recv-keys 0xC6C265324BBEBDC350B513D02D2CEF1034921684
+sha256sum -c cmake-$CMAKE_VERSION-SHA-256-filtered.txt
+$GPG --verify cmake-$CMAKE_VERSION-SHA-256.txt.asc cmake-$CMAKE_VERSION-SHA-256.txt
+# verify llvm, cfe, lld, clang-tools-extra
+if [ ! -f llvm-$LLVM_VERSION.src.tar.xz.sig ]; then
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION/llvm-$LLVM_VERSION.src.tar.xz.sig
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION/clang-$LLVM_VERSION.src.tar.xz.sig
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION/lld-$LLVM_VERSION.src.tar.xz.sig
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION/clang-tools-extra-$LLVM_VERSION.src.tar.xz.sig
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION/compiler-rt-$LLVM_VERSION.src.tar.xz.sig
+fi
+# list of valid llvm gnupg keys: https://releases.llvm.org/download.html
+$GPG --keyserver $KEYSERVER --recv-keys 0x345AD05D
+$GPG --verify llvm-$LLVM_VERSION.src.tar.xz.sig llvm-$LLVM_VERSION.src.tar.xz
+$GPG --verify clang-$LLVM_VERSION.src.tar.xz.sig clang-$LLVM_VERSION.src.tar.xz
+$GPG --verify lld-$LLVM_VERSION.src.tar.xz.sig lld-$LLVM_VERSION.src.tar.xz
+$GPG --verify clang-tools-extra-$LLVM_VERSION.src.tar.xz.sig clang-tools-extra-$LLVM_VERSION.src.tar.xz
+$GPG --verify compiler-rt-$LLVM_VERSION.src.tar.xz.sig compiler-rt-$LLVM_VERSION.src.tar.xz
+popd
+
+# create build directory
+mkdir -p build
+pushd build
+
+# compile gcc
+if [ ! -f $PREFIX/bin/gcc ]; then
+    if [ -d gcc-$GCC_VERSION ]; then
+        rm -rf gcc-$GCC_VERSION
+    fi
+    tar -xvf ../archives/gcc-$GCC_VERSION.tar.gz
+    pushd gcc-$GCC_VERSION
+    ./contrib/download_prerequisites
+    mkdir build && pushd build
+    # influenced by: https://buildd.debian.org/status/fetch.php?pkg=gcc-8&arch=amd64&ver=8.3.0-6&stamp=1554588545
+    ../configure -v \
+        --build=x86_64-linux-gnu \
+        --host=x86_64-linux-gnu \
+        --target=x86_64-linux-gnu \
+        --prefix=$PREFIX \
+        --disable-multilib \
+        --with-system-zlib \
+        --enable-checking=release \
+        --enable-languages=c,c++,fortran \
+        --enable-gold=yes \
+        --enable-ld=yes \
+        --enable-lto \
+        --enable-bootstrap \
+        --disable-vtable-verify \
+        --disable-werror \
+        --without-included-gettext \
+        --enable-threads=posix \
+        --enable-nls \
+        --enable-clocale=gnu \
+        --enable-libstdcxx-debug \
+        --enable-libstdcxx-time=yes \
+        --enable-gnu-unique-object \
+        --enable-libmpx \
+        --enable-plugin \
+        --enable-default-pie \
+        --with-target-system-zlib \
+        --with-tune=generic \
+        --without-cuda-driver
+        #--program-suffix=$( printf "$GCC_VERSION" | cut -d '.' -f 1,2 ) \
+    make -j$CPUS
+    # make -k check # run test suite
+    make install
+    popd && popd
+fi
+
+# activate toolchain
+export PATH=$PREFIX/bin:$PATH
+export LD_LIBRARY_PATH=$PREFIX/lib64
+
+# compile binutils
+if [ ! -f $PREFIX/bin/ld.gold ]; then
+    if [ -d binutils-$BINUTILS_VERSION ]; then
+        rm -rf binutils-$BINUTILS_VERSION
+    fi
+    tar -xvf ../archives/binutils-$BINUTILS_VERSION.tar.gz
+    pushd binutils-$BINUTILS_VERSION
+    mkdir build && pushd build
+    # influenced by: https://buildd.debian.org/status/fetch.php?pkg=binutils&arch=amd64&ver=2.32-7&stamp=1553247092
+    env \
+        CC=gcc \
+        CXX=g++ \
+        CFLAGS="-g -O2" \
+        CXXFLAGS="-g -O2" \
+        LDFLAGS="" \
+        ../configure \
+            --build=x86_64-linux-gnu \
+            --host=x86_64-linux-gnu \
+            --prefix=$PREFIX \
+            --enable-ld=default \
+            --enable-gold \
+            --enable-lto \
+            --enable-plugins \
+            --enable-shared \
+            --enable-threads \
+            --with-system-zlib \
+            --enable-deterministic-archives \
+            --disable-compressed-debug-sections \
+            --enable-new-dtags \
+            --disable-werror
+    make -j$CPUS
+    # make -k check # run test suite
+    make install
+    popd && popd
+fi
+
+# compile gdb
+if [ ! -f $PREFIX/bin/gdb ]; then
+    if [ -d gdb-$GDB_VERSION ]; then
+        rm -rf gdb-$GDB_VERSION
+    fi
+    tar -xvf ../archives/gdb-$GDB_VERSION.tar.gz
+    pushd gdb-$GDB_VERSION
+    mkdir build && pushd build
+    # https://buildd.debian.org/status/fetch.php?pkg=gdb&arch=amd64&ver=8.2.1-2&stamp=1550831554&raw=0
+    env \
+        CC=gcc \
+        CXX=g++ \
+        CFLAGS="-g -O2 -fstack-protector-strong -Wformat -Werror=format-security" \
+        CXXFLAGS="-g -O2 -fstack-protector-strong -Wformat -Werror=format-security" \
+        CPPFLAGS="-Wdate-time -D_FORTIFY_SOURCE=2 -fPIC" \
+        LDFLAGS="-Wl,-z,relro" \
+        PYTHON="" \
+        ../configure \
+            --build=x86_64-linux-gnu \
+            --host=x86_64-linux-gnu \
+            --prefix=$PREFIX \
+            --disable-maintainer-mode \
+            --disable-dependency-tracking \
+            --disable-silent-rules \
+            --disable-gdbtk \
+            --disable-shared \
+            --without-guile \
+            --with-system-gdbinit=$PREFIX/etc/gdb/gdbinit \
+            --with-system-readline \
+            --with-expat \
+            --with-system-zlib \
+            --with-lzma \
+            --with-babeltrace \
+            --with-intel-pt \
+            --enable-tui \
+            --with-python=python3
+    make -j$CPUS
+    make install
+    popd && popd
+fi
+
+# install pahole
+if [ ! -d $PREFIX/share/pahole-gdb ]; then
+    unzip ../archives/pahole-gdb-master.zip
+    mv pahole-gdb-master $PREFIX/share/pahole-gdb
+fi
+
+# setup system gdbinit
+if [ ! -f $PREFIX/etc/gdb/gdbinit ]; then
+    mkdir -p $PREFIX/etc/gdb
+    cat >$PREFIX/etc/gdb/gdbinit <<EOF
+# improve formatting
+set print pretty on
+set print object on
+set print static-members on
+set print vtbl on
+set print demangle on
+set demangle-style gnu-v3
+set print sevenbit-strings off
+
+# load libstdc++ pretty printers
+add-auto-load-scripts-directory $PREFIX/lib64
+add-auto-load-safe-path $PREFIX
+
+# load pahole
+python
+sys.path.insert(0, "$PREFIX/share/pahole-gdb")
+import offsets
+import pahole
+end
+EOF
+fi
+
+# compile cmake
+if [ ! -f $PREFIX/bin/cmake ]; then
+    if [ -d cmake-$CMAKE_VERSION ]; then
+        rm -rf cmake-$CMAKE_VERSION
+    fi
+    tar -xvf ../archives/cmake-$CMAKE_VERSION.tar.gz
+    pushd cmake-$CMAKE_VERSION
+    # influenced by: https://buildd.debian.org/status/fetch.php?pkg=cmake&arch=amd64&ver=3.13.4-1&stamp=1549799837
+    echo 'set(CMAKE_SKIP_RPATH ON CACHE BOOL "Skip rpath" FORCE)' >> build-flags.cmake
+    echo 'set(CMAKE_USE_RELATIVE_PATHS ON CACHE BOOL "Use relative paths" FORCE)' >> build-flags.cmake
+    echo 'set(CMAKE_C_FLAGS "-g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2" CACHE STRING "C flags" FORCE)' >> build-flags.cmake
+    echo 'set(CMAKE_CXX_FLAGS "-g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2" CACHE STRING "C++ flags" FORCE)' >> build-flags.cmake
+    echo 'set(CMAKE_SKIP_BOOTSTRAP_TEST ON CACHE BOOL "Skip BootstrapTest" FORCE)' >> build-flags.cmake
+    echo 'set(BUILD_CursesDialog ON CACHE BOOL "Build curses GUI" FORCE)' >> build-flags.cmake
+    mkdir build && pushd build
+    ../bootstrap \
+        --prefix=$PREFIX \
+        --init=../build-flags.cmake \
+        --parallel=$CPUS \
+        --system-curl
+    make -j$CPUS
+    # make test # run test suite
+    make install
+    popd && popd
+fi
+
+# compile cppcheck
+if [ ! -f $PREFIX/bin/cppcheck ]; then
+    if [ -d cppcheck-$CPPCHECK_VERSION ]; then
+        rm -rf cppcheck-$CPPCHECK_VERSION
+    fi
+    tar -xvf ../archives/cppcheck-$CPPCHECK_VERSION.tar.gz
+    pushd cppcheck-$CPPCHECK_VERSION
+    env \
+        CC=gcc \
+        CXX=g++ \
+        PREFIX=$PREFIX \
+        FILESDIR=$PREFIX/share/cppcheck \
+        CFGDIR=$PREFIX/share/cppcheck/cfg \
+            make -j$CPUS
+    env \
+        CC=gcc \
+        CXX=g++ \
+        PREFIX=$PREFIX \
+        FILESDIR=$PREFIX/share/cppcheck \
+        CFGDIR=$PREFIX/share/cppcheck/cfg \
+            make install
+    popd
+fi
+
+# compile swig
+if [ ! -d swig-$SWIG_VERSION/install ]; then
+    if [ -d swig-$SWIG_VERSION ]; then
+        rm -rf swig-$SWIG_VERSION
+    fi
+    tar -xvf ../archives/swig-$SWIG_VERSION.tar.gz
+    mv swig-rel-$SWIG_VERSION swig-$SWIG_VERSION
+    pushd swig-$SWIG_VERSION
+    ./autogen.sh
+    mkdir build && pushd build
+    ../configure --prefix=$DIR/build/swig-$SWIG_VERSION/install
+    make -j$CPUS
+    make install
+    popd && popd
+fi
+
+# compile llvm
+if [ ! -f $PREFIX/bin/clang ]; then
+    if [ -d llvm-$LLVM_VERSION ]; then
+        rm -rf llvm-$LLVM_VERSION
+    fi
+    tar -xvf ../archives/llvm-$LLVM_VERSION.src.tar.xz
+    mv llvm-$LLVM_VERSION.src llvm-$LLVM_VERSION
+    tar -xvf ../archives/clang-$LLVM_VERSION.src.tar.xz
+    mv clang-$LLVM_VERSION.src llvm-$LLVM_VERSION/tools/clang
+    tar -xvf ../archives/lld-$LLVM_VERSION.src.tar.xz
+    mv lld-$LLVM_VERSION.src/ llvm-$LLVM_VERSION/tools/lld
+    tar -xvf ../archives/clang-tools-extra-$LLVM_VERSION.src.tar.xz
+    mv clang-tools-extra-$LLVM_VERSION.src/ llvm-$LLVM_VERSION/tools/clang/tools/extra
+    tar -xvf ../archives/compiler-rt-$LLVM_VERSION.src.tar.xz
+    mv compiler-rt-$LLVM_VERSION.src/ llvm-$LLVM_VERSION/projects/compiler-rt
+    pushd llvm-$LLVM_VERSION
+    mkdir build && pushd build
+    # activate swig
+    export PATH=$DIR/build/swig-$SWIG_VERSION/install/bin:$PATH
+    # influenced by: https://buildd.debian.org/status/fetch.php?pkg=llvm-toolchain-7&arch=amd64&ver=1%3A7.0.1%7E%2Brc2-1%7Eexp1&stamp=1541506173&raw=0
+    cmake .. \
+        -DCMAKE_C_COMPILER=$PREFIX/bin/gcc \
+        -DCMAKE_CXX_COMPILER=$PREFIX/bin/g++ \
+        -DCMAKE_CXX_LINK_FLAGS="-L$PREFIX/lib64 -Wl,-rpath,$PREFIX/lib64" \
+        -DCMAKE_INSTALL_PREFIX=$PREFIX \
+        -DCMAKE_BUILD_TYPE=RelWithDebInfo \
+        -DCMAKE_CXX_FLAGS_RELWITHDEBINFO="-O2 -DNDEBUG" \
+        -DCMAKE_CXX_FLAGS=' -fuse-ld=gold -fPIC -Wno-unused-command-line-argument -Wno-unknown-warning-option' \
+        -DCMAKE_C_FLAGS=' -fuse-ld=gold -fPIC -Wno-unused-command-line-argument -Wno-unknown-warning-option' \
+        -DLLVM_LINK_LLVM_DYLIB=ON \
+        -DLLVM_INSTALL_UTILS=ON \
+        -DLLVM_VERSION_SUFFIX= \
+        -DLLVM_BUILD_LLVM_DYLIB=ON \
+        -DLLVM_ENABLE_RTTI=ON \
+        -DLLVM_ENABLE_FFI=ON \
+        -DLLVM_BINUTILS_INCDIR=$PREFIX/include/ \
+        -DLLVM_USE_PERF=yes
+    make -j$CPUS
+    make -j$CPUS check-clang # run clang test suite
+    make -j$CPUS check-lld # run lld test suite
+    make install
+    popd && popd
+fi
+
+# create README
+if [ ! -f $PREFIX/README.md ]; then
+    cat >$PREFIX/README.md <<EOF
+# Memgraph Toolchain v$TOOLCHAIN_VERSION
+
+## Included tools
+
+ - GCC $GCC_VERSION
+ - Binutils $BINUTILS_VERSION
+ - GDB $GDB_VERSION
+ - CMake $CMAKE_VERSION
+ - Cppcheck $CPPCHECK_VERSION
+ - LLVM (Clang, LLD, compiler-rt, Clang tools extra) $LLVM_VERSION
+
+## Required libraries
+
+In order to be able to run all of these tools you should install the following
+packages:
+
+\`\`\`
+$($DIR/../../os/$DISTRO.sh list TOOLCHAIN_RUN_DEPS)
+\`\`\`
+
+## Usage
+
+In order to use the toolchain you just have to source the activation script:
+
+\`\`\`
+source $PREFIX/activate
+\`\`\`
+EOF
+fi
+
+# create activation script
+if [ ! -f $PREFIX/activate ]; then
+    cat >$PREFIX/activate <<EOF
+# This file must be used with "source $PREFIX/activate" *from bash*
+# You can't run it directly!
+
+# check for active virtual environments
+if [ "\$( type -t deactivate )" != "" ]; then
+    echo "You already have an active virtual environment!"
+    return 0
+fi
+
+# check that we aren't root
+if [ "\$USER" == "root" ]; then
+    echo "You shouldn't use the toolchan as root!"
+    return 0
+fi
+
+# save original environment
+export ORIG_PATH=\$PATH
+export ORIG_PS1=\$PS1
+export ORIG_LD_LIBRARY_PATH=\$LD_LIBRARY_PATH
+
+# activate new environment
+export PATH=$PREFIX/bin:\$PATH
+export PS1="($NAME) \$PS1"
+export LD_LIBRARY_PATH=$PREFIX/lib:$PREFIX/lib64
+
+# disable root
+function su () {
+    echo "You don't want to use root functions while using the toolchain!"
+    return 1
+}
+function sudo () {
+    echo "You don't want to use root functions while using the toolchain!"
+    return 1
+}
+
+# create deactivation function
+function deactivate() {
+    export PATH=\$ORIG_PATH
+    export PS1=\$ORIG_PS1
+    export LD_LIBRARY_PATH=\$ORIG_LD_LIBRARY_PATH
+    unset ORIG_PATH ORIG_PS1 ORIG_LD_LIBRARY_PATH
+    unset -f su sudo deactivate
+}
+EOF
+fi
+
+# create toolchain archive
+if [ ! -f $NAME-binaries-$DISTRO.tar.gz ]; then
+    tar --owner=root --group=root -cpvzf $NAME-binaries-$DISTRO.tar.gz -C /opt $NAME
+fi
+
+# output final instructions
+echo -e "\n\n"
+echo "All tools have been built. They are installed in '$PREFIX'."
+echo "In order to distribute the tools to someone else, an archive with the toolchain was created in the 'build' directory."
+echo "If you want to install the packed tools you should execute the following command:"
+echo
+echo "    tar -xvzf build/$NAME-binaries.tar.gz -C /opt"
+echo
+echo "Because the tools were built on this machine, you should probably change the permissions of the installation directory using:"
+echo
+echo "    OPTIONAL: chown -R root:root $PREFIX"
+echo
+echo "In order to use all of the newly compiled tools you should use the prepared activation script:"
+echo
+echo "    source $PREFIX/activate"
+echo
+echo "Or, for more advanced uses, you can add the following lines to your script:"
+echo
+echo "    export PATH=$PREFIX/bin:\$PATH"
+echo "    export LD_LIBRARY_PATH=$PREFIX/lib:$PREFIX/lib64"
+echo
+echo "Enjoy!"

environment/toolchain/v3/build.sh

@@ -0,0 +1,556 @@
+#!/bin/bash -e
+
+# helpers
+pushd () { command pushd "$@" > /dev/null; }
+popd () { command popd "$@" > /dev/null; }
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+CPUS=$( grep -c processor < /proc/cpuinfo )
+cd "$DIR"
+
+source "$DIR/../../util.sh"
+DISTRO="$(operating_system)"
+
+# toolchain version
+TOOLCHAIN_VERSION=3
+
+# package versions used
+GCC_VERSION=11.1.0
+BINUTILS_VERSION=2.36.1
+case "$DISTRO" in
+    centos-7) # because GDB >= 9 does NOT compile with readline6.
+        GDB_VERSION=8.3
+    ;;
+    *)
+        GDB_VERSION=10.2
+    ;;
+esac
+CMAKE_VERSION=3.20.5
+CPPCHECK_VERSION=2.4.1
+LLVM_VERSION=12.0.1rc4
+LLVM_VERSION_LONG=12.0.1-rc4
+SWIG_VERSION=4.0.2 # used only for LLVM compilation
+
+# Check for the dependencies.
+echo "ALL BUILD PACKAGES: $($DIR/../../os/$DISTRO.sh list TOOLCHAIN_BUILD_DEPS)"
+$DIR/../../os/$DISTRO.sh check TOOLCHAIN_BUILD_DEPS
+echo "ALL RUN PACKAGES: $($DIR/../../os/$DISTRO.sh list TOOLCHAIN_RUN_DEPS)"
+$DIR/../../os/$DISTRO.sh check TOOLCHAIN_RUN_DEPS
+
+# check installation directory
+NAME=toolchain-v$TOOLCHAIN_VERSION
+PREFIX=/opt/$NAME
+mkdir -p $PREFIX >/dev/null 2>/dev/null || true
+if [ ! -d $PREFIX ] || [ ! -w $PREFIX ]; then
+    echo "Please make sure that the directory '$PREFIX' exists and is writable by the current user!"
+    echo
+    echo "If unsure, execute these commands as root:"
+    echo "    mkdir $PREFIX && chown $USER:$USER $PREFIX"
+    echo
+    echo "Press <return> when you have created the directory and granted permissions."
+    # wait for the directory to be created
+    while true; do
+        read
+        if [ ! -d $PREFIX ] || [ ! -w $PREFIX ]; then
+            echo
+            echo "You can't continue before you have created the directory and granted permissions!"
+            echo
+            echo "Press <return> when you have created the directory and granted permissions."
+        else
+            break
+        fi
+    done
+fi
+
+# create archives directory
+mkdir -p archives
+
+# download all archives
+pushd archives
+if [ ! -f gcc-$GCC_VERSION.tar.gz ]; then
+    wget https://ftp.gnu.org/gnu/gcc/gcc-$GCC_VERSION/gcc-$GCC_VERSION.tar.gz
+fi
+if [ ! -f binutils-$BINUTILS_VERSION.tar.gz ]; then
+    wget https://ftp.gnu.org/gnu/binutils/binutils-$BINUTILS_VERSION.tar.gz
+fi
+if [ ! -f gdb-$GDB_VERSION.tar.gz ]; then
+    wget https://ftp.gnu.org/gnu/gdb/gdb-$GDB_VERSION.tar.gz
+fi
+if [ ! -f cmake-$CMAKE_VERSION.tar.gz ]; then
+    wget https://github.com/Kitware/CMake/releases/download/v$CMAKE_VERSION/cmake-$CMAKE_VERSION.tar.gz
+fi
+if [ ! -f swig-$SWIG_VERSION.tar.gz ]; then
+    wget https://github.com/swig/swig/archive/rel-$SWIG_VERSION.tar.gz -O swig-$SWIG_VERSION.tar.gz
+fi
+if [ ! -f cppcheck-$CPPCHECK_VERSION.tar.gz ]; then
+    wget https://github.com/danmar/cppcheck/archive/$CPPCHECK_VERSION.tar.gz -O cppcheck-$CPPCHECK_VERSION.tar.gz
+fi
+if [ ! -f llvm-$LLVM_VERSION.src.tar.xz ]; then
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION_LONG/llvm-$LLVM_VERSION.src.tar.xz
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION_LONG/clang-$LLVM_VERSION.src.tar.xz
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION_LONG/lld-$LLVM_VERSION.src.tar.xz
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION_LONG/clang-tools-extra-$LLVM_VERSION.src.tar.xz
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION_LONG/compiler-rt-$LLVM_VERSION.src.tar.xz
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION_LONG/libunwind-$LLVM_VERSION.src.tar.xz
+fi
+if [ ! -f pahole-gdb-master.zip ]; then
+    wget https://github.com/PhilArmstrong/pahole-gdb/archive/master.zip -O pahole-gdb-master.zip
+fi
+
+# verify all archives
+# NOTE: Verification can fail if the archive is signed by another developer. I
+# haven't added commands to download all developer GnuPG keys because the
+# download is very slow. If the verification fails for you, figure out who has
+# signed the archive and download their public key instead.
+GPG="gpg --homedir .gnupg"
+KEYSERVER="hkp://keyserver.ubuntu.com"
+
+mkdir -p .gnupg
+chmod 700 .gnupg
+# verify gcc
+if [ ! -f gcc-$GCC_VERSION.tar.gz.sig ]; then
+    wget https://ftp.gnu.org/gnu/gcc/gcc-$GCC_VERSION/gcc-$GCC_VERSION.tar.gz.sig
+fi
+# list of valid gcc gnupg keys: https://gcc.gnu.org/mirrors.html
+$GPG --keyserver $KEYSERVER --recv-keys 0x6C35B99309B5FA62
+$GPG --verify gcc-$GCC_VERSION.tar.gz.sig gcc-$GCC_VERSION.tar.gz
+# verify binutils
+if [ ! -f binutils-$BINUTILS_VERSION.tar.gz.sig ]; then
+    wget https://ftp.gnu.org/gnu/binutils/binutils-$BINUTILS_VERSION.tar.gz.sig
+fi
+$GPG --keyserver $KEYSERVER --recv-keys 0xDD9E3C4F
+$GPG --verify binutils-$BINUTILS_VERSION.tar.gz.sig binutils-$BINUTILS_VERSION.tar.gz
+# verify gdb
+if [ ! -f gdb-$GDB_VERSION.tar.gz.sig ]; then
+    wget https://ftp.gnu.org/gnu/gdb/gdb-$GDB_VERSION.tar.gz.sig
+fi
+$GPG --keyserver $KEYSERVER --recv-keys 0xFF325CF3
+$GPG --verify gdb-$GDB_VERSION.tar.gz.sig gdb-$GDB_VERSION.tar.gz
+# verify cmake
+if [ ! -f cmake-$CMAKE_VERSION-SHA-256.txt ] || [ ! -f cmake-$CMAKE_VERSION-SHA-256.txt.asc ]; then
+    wget https://github.com/Kitware/CMake/releases/download/v$CMAKE_VERSION/cmake-$CMAKE_VERSION-SHA-256.txt
+    wget https://github.com/Kitware/CMake/releases/download/v$CMAKE_VERSION/cmake-$CMAKE_VERSION-SHA-256.txt.asc
+    # Because CentOS 7 doesn't have the `--ignore-missing` flag for `sha256sum`
+    # we filter out the missing files from the sums here manually.
+    cat cmake-$CMAKE_VERSION-SHA-256.txt | grep "cmake-$CMAKE_VERSION.tar.gz" > cmake-$CMAKE_VERSION-SHA-256-filtered.txt
+fi
+$GPG --keyserver $KEYSERVER --recv-keys 0xC6C265324BBEBDC350B513D02D2CEF1034921684
+sha256sum -c cmake-$CMAKE_VERSION-SHA-256-filtered.txt
+$GPG --verify cmake-$CMAKE_VERSION-SHA-256.txt.asc cmake-$CMAKE_VERSION-SHA-256.txt
+# verify llvm, cfe, lld, clang-tools-extra
+if [ ! -f llvm-$LLVM_VERSION.src.tar.xz.sig ]; then
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION_LONG/llvm-$LLVM_VERSION.src.tar.xz.sig
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION_LONG/clang-$LLVM_VERSION.src.tar.xz.sig
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION_LONG/lld-$LLVM_VERSION.src.tar.xz.sig
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION_LONG/clang-tools-extra-$LLVM_VERSION.src.tar.xz.sig
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION_LONG/compiler-rt-$LLVM_VERSION.src.tar.xz.sig
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION_LONG/libunwind-$LLVM_VERSION.src.tar.xz.sig
+fi
+# list of valid llvm gnupg keys: https://releases.llvm.org/download.html
+$GPG --keyserver $KEYSERVER --recv-keys 0x474E22316ABF4785A88C6E8EA2C794A986419D8A
+$GPG --verify llvm-$LLVM_VERSION.src.tar.xz.sig llvm-$LLVM_VERSION.src.tar.xz
+$GPG --verify clang-$LLVM_VERSION.src.tar.xz.sig clang-$LLVM_VERSION.src.tar.xz
+$GPG --verify lld-$LLVM_VERSION.src.tar.xz.sig lld-$LLVM_VERSION.src.tar.xz
+$GPG --verify clang-tools-extra-$LLVM_VERSION.src.tar.xz.sig clang-tools-extra-$LLVM_VERSION.src.tar.xz
+$GPG --verify compiler-rt-$LLVM_VERSION.src.tar.xz.sig compiler-rt-$LLVM_VERSION.src.tar.xz
+$GPG --verify libunwind-$LLVM_VERSION.src.tar.xz.sig libunwind-$LLVM_VERSION.src.tar.xz
+popd
+
+# create build directory
+mkdir -p build
+pushd build
+
+# compile gcc
+if [ ! -f $PREFIX/bin/gcc ]; then
+    if [ -d gcc-$GCC_VERSION ]; then
+        rm -rf gcc-$GCC_VERSION
+    fi
+    tar -xvf ../archives/gcc-$GCC_VERSION.tar.gz
+    pushd gcc-$GCC_VERSION
+    ./contrib/download_prerequisites
+    mkdir build && pushd build
+    # influenced by: https://buildd.debian.org/status/fetch.php?pkg=gcc-8&arch=amd64&ver=8.3.0-6&stamp=1554588545
+    ../configure -v \
+        --build=x86_64-linux-gnu \
+        --host=x86_64-linux-gnu \
+        --target=x86_64-linux-gnu \
+        --prefix=$PREFIX \
+        --disable-multilib \
+        --with-system-zlib \
+        --enable-checking=release \
+        --enable-languages=c,c++,fortran \
+        --enable-gold=yes \
+        --enable-ld=yes \
+        --enable-lto \
+        --enable-bootstrap \
+        --disable-vtable-verify \
+        --disable-werror \
+        --without-included-gettext \
+        --enable-threads=posix \
+        --enable-nls \
+        --enable-clocale=gnu \
+        --enable-libstdcxx-debug \
+        --enable-libstdcxx-time=yes \
+        --enable-gnu-unique-object \
+        --enable-libmpx \
+        --enable-plugin \
+        --enable-default-pie \
+        --with-target-system-zlib \
+        --with-tune=generic \
+        --without-cuda-driver
+        #--program-suffix=$( printf "$GCC_VERSION" | cut -d '.' -f 1,2 ) \
+    make -j$CPUS
+    # make -k check # run test suite
+    make install
+    popd && popd
+fi
+
+# activate toolchain
+export PATH=$PREFIX/bin:$PATH
+export LD_LIBRARY_PATH=$PREFIX/lib64
+
+# compile binutils
+if [ ! -f $PREFIX/bin/ld.gold ]; then
+    if [ -d binutils-$BINUTILS_VERSION ]; then
+        rm -rf binutils-$BINUTILS_VERSION
+    fi
+    tar -xvf ../archives/binutils-$BINUTILS_VERSION.tar.gz
+    pushd binutils-$BINUTILS_VERSION
+    mkdir build && pushd build
+    # influenced by: https://buildd.debian.org/status/fetch.php?pkg=binutils&arch=amd64&ver=2.32-7&stamp=1553247092
+    env \
+        CC=gcc \
+        CXX=g++ \
+        CFLAGS="-g -O2" \
+        CXXFLAGS="-g -O2" \
+        LDFLAGS="" \
+        ../configure \
+            --build=x86_64-linux-gnu \
+            --host=x86_64-linux-gnu \
+            --prefix=$PREFIX \
+            --enable-ld=default \
+            --enable-gold \
+            --enable-lto \
+            --enable-plugins \
+            --enable-shared \
+            --enable-threads \
+            --with-system-zlib \
+            --enable-deterministic-archives \
+            --disable-compressed-debug-sections \
+            --enable-new-dtags \
+            --disable-werror
+    make -j$CPUS
+    # make -k check # run test suite
+    make install
+    popd && popd
+fi
+
+# compile gdb
+if [ ! -f $PREFIX/bin/gdb ]; then
+    if [ -d gdb-$GDB_VERSION ]; then
+        rm -rf gdb-$GDB_VERSION
+    fi
+    tar -xvf ../archives/gdb-$GDB_VERSION.tar.gz
+    pushd gdb-$GDB_VERSION
+    mkdir build && pushd build
+    # https://buildd.debian.org/status/fetch.php?pkg=gdb&arch=amd64&ver=8.2.1-2&stamp=1550831554&raw=0
+    env \
+        CC=gcc \
+        CXX=g++ \
+        CFLAGS="-g -O2 -fstack-protector-strong -Wformat -Werror=format-security" \
+        CXXFLAGS="-g -O2 -fstack-protector-strong -Wformat -Werror=format-security" \
+        CPPFLAGS="-Wdate-time -D_FORTIFY_SOURCE=2 -fPIC" \
+        LDFLAGS="-Wl,-z,relro" \
+        PYTHON="" \
+        ../configure \
+            --build=x86_64-linux-gnu \
+            --host=x86_64-linux-gnu \
+            --prefix=$PREFIX \
+            --disable-maintainer-mode \
+            --disable-dependency-tracking \
+            --disable-silent-rules \
+            --disable-gdbtk \
+            --disable-shared \
+            --without-guile \
+            --with-system-gdbinit=$PREFIX/etc/gdb/gdbinit \
+            --with-system-readline \
+            --with-expat \
+            --with-system-zlib \
+            --with-lzma \
+            --with-babeltrace \
+            --with-intel-pt \
+            --enable-tui \
+            --with-python=python3
+    make -j$CPUS
+    make install
+    popd && popd
+fi
+
+# install pahole
+if [ ! -d $PREFIX/share/pahole-gdb ]; then
+    unzip ../archives/pahole-gdb-master.zip
+    mv pahole-gdb-master $PREFIX/share/pahole-gdb
+fi
+
+# setup system gdbinit
+if [ ! -f $PREFIX/etc/gdb/gdbinit ]; then
+    mkdir -p $PREFIX/etc/gdb
+    cat >$PREFIX/etc/gdb/gdbinit <<EOF
+# improve formatting
+set print pretty on
+set print object on
+set print static-members on
+set print vtbl on
+set print demangle on
+set demangle-style gnu-v3
+set print sevenbit-strings off
+
+# load libstdc++ pretty printers
+add-auto-load-scripts-directory $PREFIX/lib64
+add-auto-load-safe-path $PREFIX
+
+# load pahole
+python
+sys.path.insert(0, "$PREFIX/share/pahole-gdb")
+import offsets
+import pahole
+end
+EOF
+fi
+
+# compile cmake
+if [ ! -f $PREFIX/bin/cmake ]; then
+    if [ -d cmake-$CMAKE_VERSION ]; then
+        rm -rf cmake-$CMAKE_VERSION
+    fi
+    tar -xvf ../archives/cmake-$CMAKE_VERSION.tar.gz
+    pushd cmake-$CMAKE_VERSION
+    # influenced by: https://buildd.debian.org/status/fetch.php?pkg=cmake&arch=amd64&ver=3.13.4-1&stamp=1549799837
+    echo 'set(CMAKE_SKIP_RPATH ON CACHE BOOL "Skip rpath" FORCE)' >> build-flags.cmake
+    echo 'set(CMAKE_USE_RELATIVE_PATHS ON CACHE BOOL "Use relative paths" FORCE)' >> build-flags.cmake
+    echo 'set(CMAKE_C_FLAGS "-g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2" CACHE STRING "C flags" FORCE)' >> build-flags.cmake
+    echo 'set(CMAKE_CXX_FLAGS "-g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2" CACHE STRING "C++ flags" FORCE)' >> build-flags.cmake
+    echo 'set(CMAKE_SKIP_BOOTSTRAP_TEST ON CACHE BOOL "Skip BootstrapTest" FORCE)' >> build-flags.cmake
+    echo 'set(BUILD_CursesDialog ON CACHE BOOL "Build curses GUI" FORCE)' >> build-flags.cmake
+    mkdir build && pushd build
+    ../bootstrap \
+        --prefix=$PREFIX \
+        --init=../build-flags.cmake \
+        --parallel=$CPUS \
+        --system-curl
+    make -j$CPUS
+    # make test # run test suite
+    make install
+    popd && popd
+fi
+
+# compile cppcheck
+if [ ! -f $PREFIX/bin/cppcheck ]; then
+    if [ -d cppcheck-$CPPCHECK_VERSION ]; then
+        rm -rf cppcheck-$CPPCHECK_VERSION
+    fi
+    tar -xvf ../archives/cppcheck-$CPPCHECK_VERSION.tar.gz
+    pushd cppcheck-$CPPCHECK_VERSION
+    # this was fixed in cppcheck 2.5, remove this in toolchain-v4 after the lib is updated
+    # to 2.5+ version.
+    sed -i '/#include <iostream>/ a #include <limits>' lib/symboldatabase.cpp
+    env \
+        CC=gcc \
+        CXX=g++ \
+        PREFIX=$PREFIX \
+        FILESDIR=$PREFIX/share/cppcheck \
+        CFGDIR=$PREFIX/share/cppcheck/cfg \
+            make -j$CPUS
+    env \
+        CC=gcc \
+        CXX=g++ \
+        PREFIX=$PREFIX \
+        FILESDIR=$PREFIX/share/cppcheck \
+        CFGDIR=$PREFIX/share/cppcheck/cfg \
+            make install
+    popd
+fi
+
+# compile swig
+if [ ! -d swig-$SWIG_VERSION/install ]; then
+    if [ -d swig-$SWIG_VERSION ]; then
+        rm -rf swig-$SWIG_VERSION
+    fi
+    tar -xvf ../archives/swig-$SWIG_VERSION.tar.gz
+    mv swig-rel-$SWIG_VERSION swig-$SWIG_VERSION
+    pushd swig-$SWIG_VERSION
+    ./autogen.sh
+    mkdir build && pushd build
+    ../configure --prefix=$DIR/build/swig-$SWIG_VERSION/install
+    make -j$CPUS
+    make install
+    popd && popd
+fi
+
+# compile llvm
+if [ ! -f $PREFIX/bin/clang ]; then
+    if [ -d llvm-$LLVM_VERSION ]; then
+        rm -rf llvm-$LLVM_VERSION
+    fi
+    tar -xvf ../archives/llvm-$LLVM_VERSION.src.tar.xz
+    mv llvm-$LLVM_VERSION.src llvm-$LLVM_VERSION
+    tar -xvf ../archives/clang-$LLVM_VERSION.src.tar.xz
+    mv clang-$LLVM_VERSION.src llvm-$LLVM_VERSION/tools/clang
+    tar -xvf ../archives/lld-$LLVM_VERSION.src.tar.xz
+    mv lld-$LLVM_VERSION.src/ llvm-$LLVM_VERSION/tools/lld
+    tar -xvf ../archives/clang-tools-extra-$LLVM_VERSION.src.tar.xz
+    mv clang-tools-extra-$LLVM_VERSION.src/ llvm-$LLVM_VERSION/tools/clang/tools/extra
+    tar -xvf ../archives/compiler-rt-$LLVM_VERSION.src.tar.xz
+    mv compiler-rt-$LLVM_VERSION.src/ llvm-$LLVM_VERSION/projects/compiler-rt
+    tar -xvf ../archives/libunwind-$LLVM_VERSION.src.tar.xz
+    mv libunwind-$LLVM_VERSION.src/include/mach-o llvm-$LLVM_VERSION/tools/lld/include
+    pushd llvm-$LLVM_VERSION
+    mkdir build && pushd build
+    # activate swig
+    export PATH=$DIR/build/swig-$SWIG_VERSION/install/bin:$PATH
+    # influenced by: https://buildd.debian.org/status/fetch.php?pkg=llvm-toolchain-7&arch=amd64&ver=1%3A7.0.1%7E%2Brc2-1%7Eexp1&stamp=1541506173&raw=0
+    cmake .. \
+        -DCMAKE_C_COMPILER=$PREFIX/bin/gcc \
+        -DCMAKE_CXX_COMPILER=$PREFIX/bin/g++ \
+        -DCMAKE_CXX_LINK_FLAGS="-L$PREFIX/lib64 -Wl,-rpath,$PREFIX/lib64" \
+        -DCMAKE_INSTALL_PREFIX=$PREFIX \
+        -DCMAKE_BUILD_TYPE=RelWithDebInfo \
+        -DCMAKE_CXX_FLAGS_RELWITHDEBINFO="-O2 -DNDEBUG" \
+        -DCMAKE_CXX_FLAGS=' -fuse-ld=gold -fPIC -Wno-unused-command-line-argument -Wno-unknown-warning-option' \
+        -DCMAKE_C_FLAGS=' -fuse-ld=gold -fPIC -Wno-unused-command-line-argument -Wno-unknown-warning-option' \
+        -DLLVM_LINK_LLVM_DYLIB=ON \
+        -DLLVM_INSTALL_UTILS=ON \
+        -DLLVM_VERSION_SUFFIX= \
+        -DLLVM_BUILD_LLVM_DYLIB=ON \
+        -DLLVM_ENABLE_RTTI=ON \
+        -DLLVM_ENABLE_FFI=ON \
+        -DLLVM_BINUTILS_INCDIR=$PREFIX/include/ \
+        -DLLVM_USE_PERF=yes
+    make -j$CPUS
+    make -j$CPUS check-clang # run clang test suite
+    make -j$CPUS check-lld # run lld test suite
+    make install
+    popd && popd
+fi
+
+# create README
+if [ ! -f $PREFIX/README.md ]; then
+    cat >$PREFIX/README.md <<EOF
+# Memgraph Toolchain v$TOOLCHAIN_VERSION
+
+## Included tools
+
+ - GCC $GCC_VERSION
+ - Binutils $BINUTILS_VERSION
+ - GDB $GDB_VERSION
+ - CMake $CMAKE_VERSION
+ - Cppcheck $CPPCHECK_VERSION
+ - LLVM (Clang, LLD, compiler-rt, Clang tools extra) $LLVM_VERSION
+
+## Required libraries
+
+In order to be able to run all of these tools you should install the following
+packages:
+
+\`\`\`
+$($DIR/../../os/$DISTRO.sh list TOOLCHAIN_RUN_DEPS)
+\`\`\`
+
+## Usage
+
+In order to use the toolchain you just have to source the activation script:
+
+\`\`\`
+source $PREFIX/activate
+\`\`\`
+EOF
+fi
+
+# create activation script
+if [ ! -f $PREFIX/activate ]; then
+    cat >$PREFIX/activate <<EOF
+# This file must be used with "source $PREFIX/activate" *from bash*
+# You can't run it directly!
+
+env_error="You already have an active virtual environment!"
+
+# zsh does not recognize the option -t of the command type
+# therefore we use the alternative whence -w
+if [[ "\$ZSH_NAME" == "zsh" ]]; then
+    # check for active virtual environments
+    if [ "\$( whence -w deactivate )" != "deactivate: none" ]; then
+        echo \$env_error
+        return 0;
+    fi
+# any other shell
+else
+    # check for active virtual environments
+    if [ "\$( type -t deactivate )" != "" ]; then
+        echo \$env_error
+        return 0
+    fi
+fi
+
+# check that we aren't root
+if [[ "\$USER" == "root" ]]; then
+    echo "You shouldn't use the toolchain as root!"
+    return 0
+fi
+
+# save original environment
+export ORIG_PATH=\$PATH
+export ORIG_PS1=\$PS1
+export ORIG_LD_LIBRARY_PATH=\$LD_LIBRARY_PATH
+
+# activate new environment
+export PATH=$PREFIX/bin:\$PATH
+export PS1="($NAME) \$PS1"
+export LD_LIBRARY_PATH=$PREFIX/lib:$PREFIX/lib64
+
+# disable root
+function su () {
+    echo "You don't want to use root functions while using the toolchain!"
+    return 1
+}
+function sudo () {
+    echo "You don't want to use root functions while using the toolchain!"
+    return 1
+}
+
+# create deactivation function
+function deactivate() {
+    export PATH=\$ORIG_PATH
+    export PS1=\$ORIG_PS1
+    export LD_LIBRARY_PATH=\$ORIG_LD_LIBRARY_PATH
+    unset ORIG_PATH ORIG_PS1 ORIG_LD_LIBRARY_PATH
+    unset -f su sudo deactivate
+}
+EOF
+fi
+
+# create toolchain archive
+if [ ! -f $NAME-binaries-$DISTRO.tar.gz ]; then
+    tar --owner=root --group=root -cpvzf $NAME-binaries-$DISTRO.tar.gz -C /opt $NAME
+fi
+
+# output final instructions
+echo -e "\n\n"
+echo "All tools have been built. They are installed in '$PREFIX'."
+echo "In order to distribute the tools to someone else, an archive with the toolchain was created in the 'build' directory."
+echo "If you want to install the packed tools you should execute the following command:"
+echo
+echo "    tar -xvzf build/$NAME-binaries.tar.gz -C /opt"
+echo
+echo "Because the tools were built on this machine, you should probably change the permissions of the installation directory using:"
+echo
+echo "    OPTIONAL: chown -R root:root $PREFIX"
+echo
+echo "In order to use all of the newly compiled tools you should use the prepared activation script:"
+echo
+echo "    source $PREFIX/activate"
+echo
+echo "Or, for more advanced uses, you can add the following lines to your script:"
+echo
+echo "    export PATH=$PREFIX/bin:\$PATH"
+echo "    export LD_LIBRARY_PATH=$PREFIX/lib:$PREFIX/lib64"
+echo
+echo "Enjoy!"

environment/toolchain/v4/folly.patch

@@ -0,0 +1,41 @@
+diff -ur a/folly/CMakeLists.txt b/folly/CMakeLists.txt
+--- a/folly/CMakeLists.txt	2021-12-12 23:10:42.000000000 +0100
++++ b/folly/CMakeLists.txt	2022-02-03 15:19:41.349693134 +0100
+@@ -28,7 +28,6 @@
+ )
+
+ add_subdirectory(experimental/exception_tracer)
+-add_subdirectory(logging/example)
+
+ if (PYTHON_EXTENSIONS)
+   # Create tree of symbolic links in structure required for successful
+diff -ur a/folly/experimental/exception_tracer/ExceptionTracerLib.cpp b/folly/experimental/exception_tracer/ExceptionTracerLib.cpp
+--- a/folly/experimental/exception_tracer/ExceptionTracerLib.cpp	2021-12-12 23:10:42.000000000 +0100
++++ b/folly/experimental/exception_tracer/ExceptionTracerLib.cpp	2022-02-03 15:19:11.003368891 +0100
+@@ -96,6 +96,7 @@
+ #define __builtin_unreachable()
+ #endif
+
++#if 0
+ namespace __cxxabiv1 {
+
+ void __cxa_throw(
+@@ -154,5 +155,5 @@
+ }
+
+ } // namespace std
+-
++#endif
+ #endif // defined(__GLIBCXX__)
+diff -ur a/folly/Portability.h b/folly/Portability.h
+--- a/folly/Portability.h	2021-12-12 23:10:42.000000000 +0100
++++ b/folly/Portability.h	2022-02-03 15:19:11.003368891 +0100
+@@ -566,7 +566,7 @@
+ #define FOLLY_HAS_COROUTINES 0
+ #elif (__cpp_coroutines >= 201703L || __cpp_impl_coroutine >= 201902L) && \
+     (__has_include(<coroutine>) || __has_include(<experimental/coroutine>))
+-#define FOLLY_HAS_COROUTINES 1
++#define FOLLY_HAS_COROUTINES 0
+ // This is mainly to workaround bugs triggered by LTO, when stack allocated
+ // variables in await_suspend end up on a coroutine frame.
+ #define FOLLY_CORO_AWAIT_SUSPEND_NONTRIVIAL_ATTRIBUTES FOLLY_NOINLINE

environment/toolchain/v4/proxygen.patch

@@ -0,0 +1,11 @@
+diff -ur a/cmake/proxygen-config.cmake.in b/cmake/proxygen-config.cmake.in
+--- a/cmake/proxygen-config.cmake.in	2021-12-13 02:37:05.000000000 +0100
++++ b/cmake/proxygen-config.cmake.in	2022-01-27 17:14:28.284810621 +0100
+@@ -21,7 +21,6 @@
+ find_dependency(folly)
+ find_dependency(wangle)
+ find_dependency(Fizz)
+-find_dependency(mvfst)
+ # For now, anything that depends on Proxygen has to copy its FindZstd.cmake
+ # and issue a `find_package(Zstd)`.  Uncommenting this won't work because
+ # this Zstd module exposes a library called `zstd`.  The right fix is

environment/toolchain/v4/snappy.patch

@@ -0,0 +1,29 @@
+diff -ur a/CMakeLists.txt b/CMakeLists.txt
+--- a/CMakeLists.txt	2021-05-05 00:53:34.000000000 +0200
++++ b/CMakeLists.txt	2022-01-27 17:18:34.758302398 +0100
+@@ -52,9 +52,9 @@
+   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /EHs-c-")
+   add_definitions(-D_HAS_EXCEPTIONS=0)
+
+-  # Disable RTTI.
+-  string(REGEX REPLACE "/GR" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /GR-")
++  # # Disable RTTI.
++  # string(REGEX REPLACE "/GR" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
++  # set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /GR-")
+ else(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
+   # Use -Wall for clang and gcc.
+   if(NOT CMAKE_CXX_FLAGS MATCHES "-Wall")
+@@ -77,9 +77,9 @@
+   string(REGEX REPLACE "-fexceptions" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions")
+
+-  # Disable RTTI.
+-  string(REGEX REPLACE "-frtti" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti")
++  # # Disable RTTI.
++  # string(REGEX REPLACE "-frtti" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
++  # set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti")
+ endif(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
+
+ # BUILD_SHARED_LIBS is a standard CMake variable, but we declare it here to make

environment/toolchain/v4/xz_pgp.txt

@@ -0,0 +1,75 @@
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