name: MacOS

on: [push, pull_request]

env:
  OPENCL_PKGCONFIG_PATHS: ${{ github.workspace }}/install/share/pkgconfig:${{ github.workspace }}/external/OpenCL-Headers/install/share/pkgconfig:${{ github.workspace }}/external/OpenCL-ICD-Loader/install/lib/pkgconfig

jobs:
  macos-gcc:
    #runs-on: macos-latest
    runs-on: macos-11 # temporary, macos-latest only supports gcc-12
    strategy:
      matrix:
        VER: [9, 11]
        EXT: [ON, OFF]
        GEN: [Xcode, Ninja Multi-Config]
        STD: [11, 17]

    steps:
    - name: Checkout OpenCL-CLHPP
      uses: actions/checkout@v3
      with:
        submodules: recursive

    - name: Checkout OpenCL-Headers
      uses: actions/checkout@v3
      with:
        repository: KhronosGroup/OpenCL-Headers
        path: external/OpenCL-Headers

    - name: Checkout OpenCL-ICD-Loader
      uses: actions/checkout@v3
      with:
        repository: KhronosGroup/OpenCL-ICD-Loader
        path: external/OpenCL-ICD-Loader

    - name: Create Build Environment
      run: |
        cmake -E make_directory $GITHUB_WORKSPACE/build;
        cmake -E make_directory $GITHUB_WORKSPACE/install;
        if [[ "${{matrix.GEN}}" == "Ninja Multi-Config" && ! `which ninja` ]]; then brew install ninja; fi;
        # Install Ninja only if it's the selected generator and it's not available.

    - name: Build & install OpenCL-Headers
      run: cmake
        -G "${{matrix.GEN}}"
        -D CMAKE_C_FLAGS="-w"
        -D CMAKE_C_COMPILER=/usr/local/bin/gcc-${{matrix.VER}}
        -D CMAKE_C_EXTENSIONS=${{matrix.EXT}}
        -D CMAKE_INSTALL_PREFIX=$GITHUB_WORKSPACE/external/OpenCL-Headers/install
        -S $GITHUB_WORKSPACE/external/OpenCL-Headers
        -B $GITHUB_WORKSPACE/external/OpenCL-Headers/build &&
        cmake
        --build $GITHUB_WORKSPACE/external/OpenCL-Headers/build
        --target install
        --config Release
        --parallel `sysctl -n hw.logicalcpu` &&
        ls -al $GITHUB_WORKSPACE/external/OpenCL-Headers/install &&
        ls -al $GITHUB_WORKSPACE/external/OpenCL-Headers/install/include &&
        ls -al $GITHUB_WORKSPACE/external/OpenCL-Headers/install/include/CL &&
        ls -al $GITHUB_WORKSPACE/external/OpenCL-Headers/install/include/OpenCL

    - name: Build & install OpenCL-ICD-Loader
      run: cmake
        -G "${{matrix.GEN}}"
        -D CMAKE_C_FLAGS="-w -m64"
        -D CMAKE_C_COMPILER=/usr/local/bin/gcc-${{matrix.VER}}
        -D CMAKE_C_EXTENSIONS=${{matrix.EXT}}
        -D CMAKE_PREFIX_PATH=$GITHUB_WORKSPACE/external/OpenCL-Headers/install
        -D CMAKE_INSTALL_PREFIX=$GITHUB_WORKSPACE/external/OpenCL-ICD-Loader/install
        -S $GITHUB_WORKSPACE/external/OpenCL-ICD-Loader
        -B $GITHUB_WORKSPACE/external/OpenCL-ICD-Loader/build &&
        cmake
        --build $GITHUB_WORKSPACE/external/OpenCL-ICD-Loader/build
        --target install
        --config Release
        --parallel `sysctl -n hw.logicalcpu`

    - name: Configure CMake
      # no -Werror during configuration because:
      # warning: ISO C forbids assignment between function pointer and ‘void *’ [-Wpedantic]
      # warning: unused parameter [-Wunused-parameter]
      shell: bash
      run: cmake
        -G "${{matrix.GEN}}"
        -D BUILD_TESTING=ON
        -D CMAKE_CXX_FLAGS="-Wall -Wextra -pedantic -Wno-format -m64"
        -D CMAKE_CXX_COMPILER=/usr/local/bin/g++-${{matrix.VER}}
        -D CMAKE_CXX_STANDARD=${{matrix.STD}}
        -D CMAKE_CXX_EXTENSIONS=${{matrix.EXT}}
        -D CMAKE_INSTALL_PREFIX=$GITHUB_WORKSPACE/install
        -D CMAKE_PREFIX_PATH="$GITHUB_WORKSPACE/external/OpenCL-Headers/install;$GITHUB_WORKSPACE/external/OpenCL-ICD-Loader/install"
        -S $GITHUB_WORKSPACE
        -B $GITHUB_WORKSPACE/build

    - name: Build (Xcode)
      if: matrix.GEN == 'Xcode'
      shell: bash
      run: |
        cmake --build $GITHUB_WORKSPACE/build --config Release --parallel `sysctl -n hw.logicalcpu`
        cmake --build $GITHUB_WORKSPACE/build --config Debug --parallel `sysctl -n hw.logicalcpu`

    - name: Build (Ninja)
      if: matrix.GEN == 'Ninja Multi-Config'
      shell: bash
      run: |
        cmake --build $GITHUB_WORKSPACE/build --config Release --parallel `sysctl -n hw.logicalcpu`
        cmake --build $GITHUB_WORKSPACE/build --config Debug --parallel `sysctl -n hw.logicalcpu`

    - name: Test
      working-directory: ${{runner.workspace}}/OpenCL-CLHPP/build
      shell: bash
      run: |
        ctest -C Release --output-on-failure --parallel `sysctl -n hw.logicalcpu`
        ctest -C Debug --output-on-failure --parallel `sysctl -n hw.logicalcpu`

    - name: Install (Xcode)
      if: matrix.GEN == 'Xcode'
      shell: bash
      run: |
        cmake --build $GITHUB_WORKSPACE/build --config Release --target install

    - name: Install (Ninja)
      if: matrix.GEN == 'Ninja Multi-Config'
      shell: bash
      run: |
        cmake --build $GITHUB_WORKSPACE/build --config Release --target install

    - name: "Consume (standalone): Configure/Build/Test"
      shell: bash
      run: cmake
        -G "${{matrix.GEN}}"
        -D CMAKE_CXX_FLAGS="-Wall -Wextra -pedantic -m64"
        -D CMAKE_CXX_COMPILER=/usr/local/bin/g++-${{matrix.VER}}
        -D CMAKE_CXX_STANDARD=${{matrix.STD}}
        -D CMAKE_CXX_EXTENSIONS=${{matrix.EXT}}
        -D CMAKE_PREFIX_PATH="$GITHUB_WORKSPACE/external/OpenCL-Headers/install;$GITHUB_WORKSPACE/external/OpenCL-ICD-Loader/install;$GITHUB_WORKSPACE/install"
        -B$GITHUB_WORKSPACE/build/downstream/bare
        -H$GITHUB_WORKSPACE/tests/pkgconfig/bare ;
        cmake --build $GITHUB_WORKSPACE/build/downstream/bare --config Release ;
        cmake --build $GITHUB_WORKSPACE/build/downstream/bare --config Debug ;
        cd $GITHUB_WORKSPACE/build/downstream/bare ;
        ctest --output-on-failure -C Release ;
        ctest --output-on-failure -C Debug

    - name: "Consume (SDK): Configure/Build/Test"
      shell: bash
      run: cmake -E make_directory $GITHUB_WORKSPACE/install/share/cmake/OpenCL ;
        echo -e 'include("/Users/runner/work/OpenCL-CLHPP/OpenCL-CLHPP/external/OpenCL-Headers/install/share/cmake/OpenCLHeaders/OpenCLHeadersTargets.cmake")\ninclude("/Users/runner/work/OpenCL-CLHPP/OpenCL-CLHPP/external/OpenCL-ICD-Loader/install/share/cmake/OpenCLICDLoader/OpenCLICDLoaderTargets.cmake")\ninclude("${CMAKE_CURRENT_LIST_DIR}/../OpenCLHeadersCpp/OpenCLHeadersCppTargets.cmake")' > $GITHUB_WORKSPACE/install/share/cmake/OpenCL/OpenCLConfig.cmake ;
        cmake
        -G "${{matrix.GEN}}"
        -D CMAKE_CXX_FLAGS="-Wall -Wextra -pedantic -m64"
        -D CMAKE_CXX_COMPILER=/usr/local/bin/g++-${{matrix.VER}}
        -D CMAKE_CXX_STANDARD=${{matrix.STD}}
        -D CMAKE_CXX_EXTENSIONS=${{matrix.EXT}}
        -D CMAKE_PREFIX_PATH="$GITHUB_WORKSPACE/external/OpenCL-Headers/install;$GITHUB_WORKSPACE/external/OpenCL-ICD-Loader/install;$GITHUB_WORKSPACE/install"
        -B$GITHUB_WORKSPACE/build/downstream/sdk
        -H$GITHUB_WORKSPACE/tests/pkgconfig/sdk ;
        cmake --build $GITHUB_WORKSPACE/build/downstream/sdk --config Release ;
        cmake --build $GITHUB_WORKSPACE/build/downstream/sdk --config Debug ;
        cd $GITHUB_WORKSPACE/build/downstream/sdk ;
        ctest --output-on-failure -C Release ;
        ctest --output-on-failure -C Debug

    - name: Test pkg-config
      shell: bash
      run: |
        if [[ ! `which pkg-config` ]]; then brew install pkg-config; fi;
        PKG_CONFIG_PATH="$OPENCL_PKGCONFIG_PATHS" pkg-config OpenCL-CLHPP --cflags | grep -q "\-I$GITHUB_WORKSPACE/install/include"

    - name: Test pkg-config dependency
      shell: bash
      run: PKG_CONFIG_PATH="$OPENCL_PKGCONFIG_PATHS" pkg-config OpenCL-CLHPP --cflags | grep -q "\-I$GITHUB_WORKSPACE/external/OpenCL-Headers/install/include"