build_linux.yml

name: Linux

on:
  push:
    branches: [ master, '*-ci' ]
  pull_request:
    branches: [ master, '*-ci' ]
  workflow_dispatch:

jobs:
  cpp:
    strategy:
      fail-fast: false
      matrix:
        include:
        - { os: "ubuntu-22.04", platform: "64", clang-version: "14", cxx-standard: "17", build-type: "Release" }
        - { os: "ubuntu-22.04", platform: "64", clang-version: "14", cxx-standard: "17", build-type: "Debug" }
        - { os: "ubuntu-22.04", platform: "32", clang-version: "14", cxx-standard: "17", build-type: "Release" }
        - { os: "ubuntu-22.04", platform: "32", clang-version: "14", cxx-standard: "17", build-type: "Debug" }

    runs-on: ${{matrix.os}}
    name: "\
      ${{matrix.os}}-${{matrix.platform}}-\
      ${{ matrix.gcc-version && format('gcc{0}', matrix.gcc-version)
          || format('clang{0}', matrix.clang-version) }}-\
      c++${{matrix.cxx-standard}}-${{matrix.build-type}}"

    steps:
    - name: "Set up environment"
      run: |
        echo "CMAKE_BUILD_OPTIONS=-j$(nproc)" >> ${GITHUB_ENV}
        if [[ "${{matrix.gcc-version}}" != "" ]] ; then
          echo "GCC_VERSION_SUFFIX=-${{matrix.gcc-version}}" >> ${GITHUB_ENV}
          echo "PACKAGE=linux${{matrix.platform}}-gcc" >> ${GITHUB_ENV}
        elif [[ "${{matrix.clang-version}}" != "" ]] ; then
          echo "CLANG_VERSION_SUFFIX=-${{matrix.clang-version}}" >> ${GITHUB_ENV}
          echo "PACKAGE=linux${{matrix.platform}}-clang" >> ${GITHUB_ENV}
        fi

        if [[ "${{matrix.os}}" == "ubuntu-22.04" ]] ; then
            echo "CLANG_FORMAT_BIN=clang-format-14" >> ${GITHUB_ENV}
        fi

        if [[ "${{matrix.build-type}}" == "Debug" ]] ; then
          if [[ "${{matrix.clang-version}}" == "14" ]] ; then
            echo "CLANG_TIDY_BIN=clang-tidy-${{matrix.clang-version}}" >> ${GITHUB_ENV}
          fi
          if [[ "${{matrix.gcc-version}}" != "" && `gcc --version` == *" ${{matrix.gcc-version}}."* ]] ; then
            # gcovr works only for default gcc version
            echo "GCOVR_BIN=gcovr" >> ${GITHUB_ENV}
          fi
          if [[ "${{matrix.clang-version}}" != "" ]] ; then
            echo "LLVM_PROFDATA_BIN=llvm-profdata-${{matrix.clang-version}}" >> ${GITHUB_ENV}
            echo "LLVM_COV_BIN=llvm-cov-${{matrix.clang-version}}" >> ${GITHUB_ENV}
          fi
          if [[ ! ( "${{matrix.platform}}" == "32" && "${{matrix.clang-version}}" != "" ) ]] ; then
            # sanitizers do not work with clang 32-bit when cross-compiling
            # https://github.com/ndsev/zserio/issues/473
            echo "SANITIZERS_ENABLED=1" >> ${GITHUB_ENV}
          fi
        fi

        CMAKE_EXTRA_ARGS=("-DZSERIO_ENABLE_WERROR=1"
                          "-DCMAKE_BUILD_TYPE=${{matrix.build-type}}"
                          "-DCMAKE_CXX_STANDARD=${{matrix.cxx-standard}}")
        echo "CMAKE_EXTRA_ARGS=${CMAKE_EXTRA_ARGS[@]}" >> ${GITHUB_ENV}

    - name: Apt update # with workaround for 'Unable to connect to ppa.launchpad.net' failure
      run: sudo apt-get update --option Acquire::Retries=100 --option Acquire::http::Timeout="300"

    - name: Install dependencies
      run: sudo apt-get install cmake doxygen graphviz g++-multilib gcovr

    - name: Install gcc ${{matrix.gcc-version}} compiler
      if: ${{ matrix.gcc-version != '' }}
      run: |
        sudo apt-get install gcc-${{matrix.gcc-version}}
        sudo apt-get install g++-${{matrix.gcc-version}} g++-${{matrix.gcc-version}}-multilib

    - name: Install clang ${{matrix.clang-version}} compiler
      if: ${{ matrix.clang-version != '' }}
      run: |
        sudo apt-get install clang-${{matrix.clang-version}}
        sudo apt-get install llvm-${{matrix.clang-version}}

    # https://github.com/actions/runner-images/issues/9491 (remove once fixed)
    - name: Reduce ASLR entropy as a temporary workaround
      if: ${{ env.SANITIZERS_ENABLED == 1 }}
      run: |
        sudo sysctl -w vm.mmap_rnd_bits=28

    - name: Checkout
      uses: actions/checkout@v4
      with:
        submodules: recursive

    - name: Build Zserio C++ runtime
      run: |
        scripts/build.sh cpp_rt-${PACKAGE}

    - name: Upload Zserio C++ runtime artifacts
      # update when https://github.com/actions/upload-artifact/issues/543 is fixed
      uses: actions/upload-artifact@v3
      # we need to collect this artifact from a build which has both clang coverage and clang-tidy reports
      if: ${{ matrix.platform == '64' && matrix.clang-version == '14' && matrix.cxx-standard == '17' &&
              matrix.build-type == 'Debug' }}
      with:
        name: "zserio-runtime-cpp"
        path: distr/runtime_libs/cpp

    - name: Upload Zserio C++ build artifacts
      # update when https://github.com/actions/upload-artifact/issues/543 is fixed
      uses: actions/upload-artifact@v3
      with:
        name: "\
          zserio-build-${{matrix.os}}-${{matrix.platform}}-\
          ${{ matrix.gcc-version && format('gcc{0}', matrix.gcc-version)
              || format('clang{0}', matrix.clang-version) }}-\
          cxx${{matrix.cxx-standard}}-${{matrix.build-type}}"
        path: build/runtime_libs/cpp/**/runtime/*.a