nmodl-ci.yml

name: NMODL CI

concurrency:
  group: ${{ github.workflow }}#${{ github.ref }}
  cancel-in-progress: true

on:
  push:
    branches:
      - master
      - release/**
  pull_request:
    branches:
      - master
      - release/**

env:
  CTEST_PARALLEL_LEVEL: 1
  PYTHON_VERSION: 3.8
  DESIRED_CMAKE_VERSION: 3.15.0

jobs:
  ci:
    runs-on: ${{matrix.config.os}}
    name: ${{toJson(matrix.config)}}
    strategy:
      matrix:
        include:
          - config:
              os: ubuntu-20.04
          - config:
              flag_warnings: ON
              glibc_asserts: ON
              os: ubuntu-22.04
          - config:
              os: macos-12
          - config:
              os: macos-13
          - config:
              os: windows-latest
          # TODO: might be interesting to add the thread sanitizer too
          - config:
              os: ubuntu-22.04
              # Hyphens here will be replaced with commas before the value is
              # passed to NMODL_SANITIZERS
              sanitizer: address-leak
          - config:
              os: ubuntu-22.04
              enable_usecases: On
              update_references: On
          - config:
              flag_warnings: ON
              os: ubuntu-22.04
              sanitizer: undefined
      fail-fast: true
    steps:
      - name: Fix kernel mmap rnd bits
        # Asan in llvm 14 provided in ubuntu 22.04 is incompatible with
        # high-entropy ASLR in much newer kernels that GitHub runners are
        # using leading to random crashes: https://reviews.llvm.org/D148280
        run: sudo sysctl vm.mmap_rnd_bits=28
        if: matrix.config.os == 'ubuntu-22.04'

      - name: Setup cmake
        uses: jwlawson/actions-setup-cmake@v2
        with:
          cmake-version: ${{ env.DESIRED_CMAKE_VERSION }}

      - name: Install homebrew packages
        if: startsWith(matrix.config.os, 'macOS')
        run: |
          brew install python@3.12 || true
          brew link --overwrite python@3.12
          brew install ccache coreutils bison boost flex ninja
          echo /usr/local/opt/flex/bin:/usr/local/opt/bison/bin >> $GITHUB_PATH
          # Taken from https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners#supported-runners-and-hardware-resources
          echo CMAKE_BUILD_PARALLEL_LEVEL=3 >> $GITHUB_ENV
        shell: bash

      - name: Install apt packages
        if: startsWith(matrix.config.os, 'ubuntu')
        run: |
          sudo apt-get install bison ccache flex libfl-dev ninja-build python3-dev python3-pip
          # Taken from https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners#supported-runners-and-hardware-resources
          echo CMAKE_BUILD_PARALLEL_LEVEL=2 >> $GITHUB_ENV
        shell: bash

      - name: Install choco packages
        if: startsWith(matrix.config.os, 'windows')
        run: |
          choco install winflexbison3

      - name: Configure VS Toolchain (Windows)
        if: startsWith(matrix.config.os, 'windows')
        uses: ilammy/msvc-dev-cmd@v1

      - name: Set up Python3
        uses: actions/setup-python@v5
        with:
          python-version: ${{ env.PYTHON_VERSION }}

      - uses: actions/checkout@v4

      - name: Install Python3 dependencies
        working-directory: ${{runner.workspace}}/nmodl
        run: |
          python3 -m pip install -U pip setuptools
          python3 -m pip install --user -r requirements.txt

      - name: Install neuron-nightly
        if: ${{matrix.config.enable_usecases == 'On'}}
        run: |
          python3 -m pip install neuron-nightly

      - name: Register compiler warning problem matcher
        if: ${{matrix.config.flag_warnings == 'ON'}}
        run: echo "::add-matcher::.github/problem-matchers/gcc.json"

      - name: Register sanitizer problem matcher
        if: ${{matrix.config.sanitizer}}
        run: echo "::add-matcher::.github/problem-matchers/${{matrix.config.sanitizer}}.json"

      - name: Configure Windows
        if: startsWith(matrix.config.os, 'windows')
        run: |
          cmake -S . -B build -DFLEX_INCLUDE_PATH=C:/ProgramData/chocolatey/lib/winflexbison3/tools -DBUILD_SHARED_LIBS=OFF

      - name: Configure Linux/MacOS
        if: ${{ !startsWith(matrix.config.os, 'windows') }}
        shell: bash
        working-directory: ${{runner.workspace}}/nmodl
        run:  |
          echo "------- Configure -------"
          cmake_args=(-G Ninja
                      -DPYTHON_EXECUTABLE=$(which python3) \
                      -DCMAKE_INSTALL_PREFIX=$INSTALL_DIR)
          if [[ -n "${{matrix.config.flag_warnings}}" ]]; then
            cmake_args+=(-DNMODL_EXTRA_CXX_FLAGS="-Wall \
                          -Wno-reorder \
                          -Wno-unknown-pragmas \
                          -Wno-sign-compare \
                          -Wno-overloaded-virtual")
          fi
          if [[ -n "${{matrix.config.enable_usecases}}" ]]; then
            cmake_args+=(-DNMODL_ENABLE_USECASES=${{matrix.config.enable_usecases}})
          fi
          if [[ -n "${{matrix.config.sanitizer}}" ]]; then
            cmake_args+=(-DCMAKE_BUILD_TYPE=Custom \
                         -DCMAKE_CXX_FLAGS="-O1 -g" \
                         -DNMODL_SANITIZERS=$(echo ${{matrix.config.sanitizer}} | sed -e 's/-/,/g'))
            CXX=$(command -v clang++-14)
          else
            CXX=${CXX:-g++}
            if [[ -n "${{matrix.config.glibc_asserts}}" ]]; then
              cmake_args+=(-DCMAKE_BUILD_TYPE=Debug \
                           -DCMAKE_CXX_FLAGS=-D_GLIBCXX_DEBUG)
            fi
          fi
          cmake_args+=(-DCMAKE_CXX_COMPILER=${CXX} \
                       -DCMAKE_CXX_COMPILER_LAUNCHER=ccache)
          cmake_args+=(-DNMODL_ENABLE_BACKWARD=On)
          cmake -B build -S . "${cmake_args[@]}"
        env:
          INSTALL_DIR: ${{ runner.workspace }}/install

      - name: Dump config dictionary
        if: ${{ !startsWith(matrix.config.os, 'windows') }}
        run: |
          cat << EOF > matrix.json
          ${{toJSON(matrix.config)}}
          EOF
          echo matrix.config JSON:
          cat matrix.json
          echo -----

      - name: Restore compiler cache
        if: ${{ !startsWith(matrix.config.os, 'windows') }}
        uses: actions/cache@v4
        with:
          path: |
            ${{runner.workspace}}/ccache
          key: ${{hashfiles('matrix.json')}}-${{github.ref}}-${{github.sha}}
          restore-keys: |
            ${{hashfiles('matrix.json')}}-${{github.ref}}-
            ${{hashfiles('matrix.json')}}-
          save-always: true

      - name: Build Windows
        if: startsWith(matrix.config.os, 'windows')
        run: |
          cmake --build build
  
      - name: Build Linux/MacOS
        if: ${{ !startsWith(matrix.config.os, 'windows') }}
        shell: bash
        working-directory: ${{runner.workspace}}/nmodl
        env:
          CCACHE_BASEDIR: ${{runner.workspace}}/nmodl
          CCACHE_DIR: ${{runner.workspace}}/ccache
          PYTHONMALLOC: malloc
        run:  |
          if ccache --version | grep -E '^ccache version 4\.(4|4\.1)$'
          then
            echo "------- Disable ccache direct mode -------"
            # https://github.com/ccache/ccache/issues/935
            export CCACHE_NODIRECT=1
          fi
          echo "------- Building -------"
          ccache -z
          # Older versions don't support -v (verbose)
          ccache -vs 2>/dev/null || ccache -s
          cmake --build build
          ccache -vs 2>/dev/null || ccache -s
      - name: Test
        shell: bash
        working-directory: ${{runner.workspace}}/nmodl/build
        env:
          PYTHONMALLOC: malloc
        run:  |
          ctest --output-on-failure -T Test
      - name: Install
        shell: bash
        working-directory: ${{runner.workspace}}/nmodl
        run:  |
          cmake --install build

      - name: Update references
        if: matrix.config.update_references == 'On'
        shell: bash

        working-directory: ${{runner.workspace}}/nmodl/test/usecases
        run : |
          export PATH="${INSTALL_DIR}/bin:${PATH}"
          export PYTHONPATH="${INSTALL_DIR}/lib:${PYTHONPATH}"

          for d in */
          do
              ./generate_references.py nmodl "$d" "$OUTPUT_DIR/$d"
          done

          cd $OUTPUT_DIR
          tar cf ../references.tar *

        env:
          INSTALL_DIR: ${{ runner.workspace }}/install
          OUTPUT_DIR: ${{ runner.workspace }}/references


      - uses: actions/upload-artifact@v4
        if: matrix.config.update_references == 'On'
        with:
          name: references
          path: ${{runner.workspace}}/references.tar

      - uses: actions/upload-artifact@v4
        with:
          name: ctest-results-${{hashfiles('matrix.json')}}
          path: ${{runner.workspace}}/nmodl/build/Testing/*/Test.xml

      # This step will set up an SSH connection on tmate.io for live debugging.
      # To enable it, you have to:
      #   * add 'live-debug-tests' to your PR title
      #   * push something to your PR branch (note that just re-running disregards the title update)
      - name: live debug session on failure (manual steps required, check `nmodl-ci.yml`)
        if: failure() && contains(github.event.pull_request.title, 'live-debug-tests')
        uses: mxschmitt/action-tmate@v3
        timeout-minutes: 60


  commit-references:
    runs-on: ubuntu-latest
    needs: ci
    steps:

      - uses: actions/download-artifact@v4
        with:
          name: references
          path: ${{runner.workspace}}/

      - name: Check out nmodl-references
        uses: actions/checkout@v4
        with:
          repository: BlueBrain/nmodl-references
          token:  ${{ secrets.NMODL_REFERENCES_ACCESS_TOKEN }}

      - name: Update references
        run: |
          git config user.name "GitHub Actions Bot"
          git config user.email "<>"

          # If not a PR, then `pr_number` is the branch name.
          if [[ ${{ github.event_name }} == "pull_request" ]]
          then
            pr_number="$(echo ${GITHUB_REF_NAME} | sed "s/^\([0-9]*\)\/merge/\1/")"

            nmodl_desc=https://github.com/BlueBrain/nmodl/pull/${pr_number}
            branch="nmodl-${pr_number}"
          else
            nmodl_desc="nmodl@${GITHUB_SHA}"
            branch="main"
          fi

          git fetch
          git checkout ${branch} 2>/dev/null || git checkout -b ${branch}

          for d in */
          do
            rm -rf "$d"
          done
          tar xf ${{ runner.workspace }}/references.tar

          git add .
          git commit --allow-empty -m "References for '${nmodl_desc}'."
          git push 2>/dev/null || git push --set-upstream origin ${branch}