cmake-multi-platform.yml

name: CMake on multiple platforms

on:
  push:
    branches: [ "main" ]
  pull_request:
    branches: [ "main" ]

jobs:
  build:
    runs-on: ${{ matrix.os }}

    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, windows-latest]
        build_type: [Release, Debug]
        c_compiler: [gcc, clang, cl]
        include:
          - os: windows-latest
            c_compiler: cl
            cpp_compiler: cl
            build_type: Release
          - os: ubuntu-latest
            c_compiler: gcc
            cpp_compiler: g++
            build_type: Release
          - os: ubuntu-latest
            c_compiler: clang
            cpp_compiler: clang++
            build_type: Release
          - os: ubuntu-latest
            c_compiler: clang
            cpp_compiler: clang++
            build_type: Debug
        exclude:
          - os: windows-latest
            c_compiler: gcc
          - os: windows-latest
            c_compiler: clang
          - os: ubuntu-latest
            c_compiler: cl
          - os: windows-latest
            c_compiler: cl
            build_type: Debug
          - os: ubuntu-latest
            c_compiler: gcc
            build_type: Debug

    steps:
    - uses: actions/checkout@v4

    - name: Set reusable strings
      id: strings
      shell: bash
      run: |
        echo "build-output-dir=${{ github.workspace }}/build" >> "$GITHUB_OUTPUT"

    - name: Configure CMake
      run: >
        cmake -B ${{ steps.strings.outputs.build-output-dir }}
        -DCMAKE_CXX_COMPILER=${{ matrix.cpp_compiler }}
        -DCMAKE_C_COMPILER=${{ matrix.c_compiler }}
        -DCMAKE_BUILD_TYPE=${{ matrix.build_type }}
        -S ${{ github.workspace }}

    - name: Build
      run: cmake --build ${{ steps.strings.outputs.build-output-dir }} --config ${{ matrix.build_type }}

    - name: Run Tests with gdb (Linux only)
      if: matrix.os == 'ubuntu-latest'
      working-directory: ${{ steps.strings.outputs.build-output-dir }}
      run: |
        for test_executable in $(find . -type f -executable -name '*_test'); do
          echo "Running $test_executable under gdb..."
          gdb -batch -ex "run" -ex "bt" --args $test_executable || true
        done

    - name: Run Tests (Windows only)
      if: matrix.os == 'windows-latest'
      working-directory: ${{ steps.strings.outputs.build-output-dir }}
      run: ctest --output-on-failure