.github/workflows/ci.yml

name: ci

on: push

permissions:
  contents: read

jobs:
  build:
    strategy:
      matrix:
        container: [ ubuntu-latest, macos-latest, windows-latest ]
        build_type: [ Debug, Release ]
        # When updating the CMake version, make sure to also update the CMakeLists.txt.
        cmake_version: ["3.15", "4.0.1", latest, latestrc]
        include:
          - container: windows-2019
            cmake_version: "3.15"
            build_type: Debug
          - container: windows-2019
            cmake_version: "3.15"
            build_type: Release
        exclude:
          - container: windows-latest
            cmake_version: "3.15"

    runs-on: ${{ matrix.container }}

    name: ${{ matrix.container }} - ${{ matrix.build_type }} - CMake ${{ matrix.cmake_version }}

    steps:
      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0

      - name: Set up CMake
        uses: lukka/get-cmake@2ecc21724e5215b0e567bc399a2602d2ecb48541  # v4.02
        with:
          cmakeVersion: ${{ matrix.cmake_version }}

      - name: Check for cmake warnings
        if: runner.os != 'Windows'
        shell: bash
        run: |
          mkdir -p build-warning
          cd build-warning
          cmake -S .. 2>&1 | tee cmake-warnings.log
          # Check for warnings in the log file.
          if grep -q "CMake Warning" cmake-warnings.log; then
            echo "CMake warnings found!"
            cat cmake-warnings.log
            exit 1
          fi

      - name: Configure
        shell: bash
        # Configure CMake in a 'buildX' subdirectory.
        # We can't use `build` as `BUILD` is already taken by the bazel build file.
        # On Mac and Windows this leads to a conflict.
        run: |
          mkdir -p buildX
          cd buildX
          cmake \
            -DBUILD_TESTING=ON \
            -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} \
            -DCMAKE_INSTALL_PREFIX:PATH=${{ github.workspace }}/install_dir \
            -DBUILD_SHARED_LIBS=ON \
            ..

      - name: Build shared
        run: |
          cmake --build buildX --config ${{ matrix.build_type }}

      - name: Install shared
        run: |
          cmake --install buildX --config ${{ matrix.build_type }}

      - name: Build static
        run: |
          cmake -DBUILD_SHARED_LIBS=OFF buildX
          cmake --build buildX --config ${{ matrix.build_type }}

      - name: Install static
        run: |
          cmake --install buildX --config ${{ matrix.build_type }}

      - name: Test
        if: runner.os != 'Windows'
        working-directory: ${{ github.workspace }}/buildX
        # Execute all tests.
        run: |
          ctest
          # Also run the tests directly, just in case we forgot to add it to ctest.
          test/cctest/cctest

      - name: Test - Windows
        if: runner.os == 'Windows'
        working-directory: ${{ github.workspace }}/buildX
        # Execute all tests.
        run: |
          ctest -C ${{ matrix.build_type }}
          # Also run the tests directly, just in case we forgot to add it to ctest.
          test/cctest/${{ matrix.build_type }}/cctest.exe