pigz.yml

name: Pigz
on: [push, pull_request]
concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true
jobs:
  pigz:
    name: ${{ matrix.name }}
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        include:
          - name: Ubuntu GCC
            os: ubuntu-latest
            compiler: gcc
            codecov: ubuntu_gcc_pigz

          - name: Ubuntu GCC Symbol Prefix
            os: ubuntu-latest
            compiler: gcc
            codecov: ubuntu_gcc_pigz
            cmake-args: -DZLIB_SYMBOL_PREFIX=zTest_

          - name: Ubuntu Clang
            os: ubuntu-latest
            compiler: clang
            packages: llvm-11 llvm-11-tools
            gcov-exec: llvm-cov-11 gcov
            codecov: ubuntu_clang_pigz

          - name: Ubuntu Clang No Optim
            os: ubuntu-latest
            compiler: clang
            packages: llvm-11 llvm-11-tools
            gcov-exec: llvm-cov-11 gcov
            codecov: ubuntu_clang_pigz_no_optim
            cmake-args: -DWITH_OPTIM=OFF

            # Use v2.6 due to NOTHREADS bug https://github.com/madler/pigz/issues/97
          - name: Ubuntu Clang No Threads
            os: ubuntu-latest
            compiler: clang
            packages: llvm-11 llvm-11-tools
            gcov-exec: llvm-cov-11 gcov
            codecov: ubuntu_clang_pigz_no_threads
            cmake-args: -DWITH_THREADS=OFF -DPIGZ_VERSION=v2.6

          - name: Ubuntu GCC AARCH64
            os: ubuntu-latest
            cmake-args: -DCMAKE_TOOLCHAIN_FILE=../../cmake/toolchain-aarch64.cmake
            packages: qemu qemu-user gcc-aarch64-linux-gnu libc-dev-arm64-cross
            codecov: ubuntu_gcc_pigz_aarch64

    steps:
    - name: Checkout repository
      uses: actions/checkout@v4
      with:
        show-progress: 'false'

    - name: Checkout test corpora
      uses: actions/checkout@v4
      with:
        repository: zlib-ng/corpora
        path: test/data/corpora
        show-progress: 'false'

    - name: Add ubuntu mirrors
      if: runner.os == 'Linux' && matrix.packages
      # Github Actions caching proxy is at times unreliable
      run: |
        echo -e 'http://azure.archive.ubuntu.com/ubuntu\tpriority:1\n' | sudo tee /etc/apt/mirrors.txt
        curl http://mirrors.ubuntu.com/mirrors.txt | sudo tee --append /etc/apt/mirrors.txt
        sudo sed -i 's#http://azure.archive.ubuntu.com/ubuntu/#mirror+file:/etc/apt/mirrors.txt#' /etc/apt/sources.list

    - name: Install packages (Ubuntu)
      if: runner.os == 'Linux' && matrix.packages
      run: |
        sudo apt-get update
        sudo apt-get install -y ${{ matrix.packages }}

    - name: Generate project files
      run: |
        cmake ${{ matrix.cmake-args }} \
          -DCMAKE_BUILD_TYPE=${{ matrix.build-config || 'Release' }} \
          -DBUILD_SHARED_LIBS=OFF \
          -DZLIB_ROOT=../.. \
          -DWITH_CODE_COVERAGE=ON \
          -DWITH_MAINTAINER_WARNINGS=ON
      working-directory: test/pigz
      env:
        CC: ${{ matrix.compiler }}
        CFLAGS: ${{ matrix.cflags }}
        LDFLAGS: ${{ matrix.ldflags }}
        CI: true

    - name: Compile source code
      run: cmake --build . -j2 --config ${{ matrix.build-config || 'Release' }}
      working-directory: test/pigz

    - name: Run test cases
      run: ctest --verbose -C Release --output-on-failure --max-width 120 -j ${{ matrix.parallels-jobs || '3' }}
      working-directory: test/pigz

    - name: Generate coverage report
      if: matrix.codecov
      run: |
        python3 -u -m pip install --user gcovr==5.0
        python3 -m gcovr -j 3 --verbose \
          --exclude-unreachable-branches \
          --gcov-executable "${{ matrix.gcov-exec || 'gcov' }}" \
          --root . \
          --xml --output ${{ matrix.codecov }}.xml

    - name: Upload coverage report artifact
      uses: actions/upload-artifact@v4
      if: matrix.codecov
      with:
        name: ${{ matrix.name }} (coverage)
        path: ${{ matrix.codecov }}.xml
        retention-days: 1

    - name: Upload build errors
      uses: actions/upload-artifact@v4
      if: failure()
      with:
        name: ${{ matrix.name }} (cmake)
        path: |
          **/CMakeFiles/CMakeOutput.log
          **/CMakeFiles/CMakeError.log
          **/Testing/Temporary/*
          coverage.xml
        retention-days: 30

  coverage:
    name: Upload Coverage Reports
    runs-on: ubuntu-latest
    needs: pigz
    if: cancelled() == false
    steps:
    - name: Checkout repository
      uses: actions/checkout@v4
      with:
        show-progress: false

    - name: Download all reports
      uses: actions/download-artifact@v4
      with:
        merge-multiple: true

    - name: Display all coverage artifacts
      run: |
        ls -R *.xml
        echo "CODECOV_REPORTS=`ls -p *.xml | grep -v / | tr '\n' ',' | sed 's/,$//g'`" >> $GITHUB_ENV

    - name: Upload reports
      uses: codecov/codecov-action@v5
      if: (env.CODECOV_TOKEN != '' || github.repository == 'zlib-ng/zlib-ng')
      with:
        files: ${{ env.CODECOV_REPORTS }}
        name: pigz-umbrella
        verbose: true
        fail_ci_if_error: true
      env:
        CODECOV_TOKEN: "${{ secrets.CODECOV_TOKEN }}"