name: Linux/MacOS Build

on:
  push:
  pull_request:
    branches: [master]

#env:

jobs:
  build:
    strategy:
      fail-fast: false
      matrix:
        build_type : [ Release, Debug ]
        os : [ macos-latest, ubuntu-20.04 ]
        task_backend : [Pthreads, TBB, PaRSEC]
        include:
          - os: ubuntu-20.04
            cxx: /usr/bin/g++-9
          - os: macos-latest
            cxx: clang++

    name: "${{ matrix.os }}: ${{ matrix.cxx }} ${{ matrix.build_type }} ${{ matrix.task_backend }}"
    runs-on: ${{ matrix.os }}
    env:
      CXX : ${{ matrix.cxx }}
      CCACHE_DIR : ${{github.workspace}}/build/.ccache
      CCACHE_COMPRESS : true
      CCACHE_COMPRESSLEVEL : 6
      MAD_SMALL_TESTS : 1
      MAD_NUM_THREADS : 3
      CTEST_OUTPUT_ON_FAILURE : 1
      BUILD_CONFIG : >
        -G Ninja
        -DCMAKE_PREFIX_PATH=/usr/local/opt/bison
        -DBUILD_SHARED_LIBS=OFF
        -DMPIEXEC_PREFLAGS='--bind-to;none;--allow-run-as-root'
        -DBUILD_TESTING=ON
        -DMADNESS_ENABLE_CEREAL=ON
        -DMADNESS_TASK_BACKEND=${{ matrix.task_backend }}
        -DMADNESS_BUILD_MADWORLD_ONLY=${{ matrix.task_backend != 'Pthreads' }}

    steps:
    - uses: actions/checkout@v2

    - name: Create Build Environment
      # Some projects don't allow in-source building, so create a separate build directory
      # We'll use this as our working directory for all subsequent commands
      run: cmake -E make_directory ${{github.workspace}}/build

    - name: Install prerequisite MacOS packages
      if: ${{ matrix.os == 'macos-latest' }}
      run: |
        brew install ninja gcc@10 boost eigen open-mpi bison tbb@2020 ccache
        if [ "X${{ matrix.build_type }}" = "XDebug" ]; then
          brew install cereal
        fi
        echo "TBBROOT=/usr/local/opt/tbb@2020" >> $GITHUB_ENV
        echo "/usr/local/opt/bison/bin" >> $GITHUB_PATH

    - name: Install prerequisites Ubuntu packages
      if: ${{ matrix.os == 'ubuntu-20.04' }}
      run: |
        sudo apt-get update
        sudo apt-get install ninja-build g++-9 liblapack-dev libboost-dev libboost-serialization-dev libeigen3-dev openmpi-bin libopenmpi-dev libtbb-dev ccache
        if [ "X${{ matrix.build_type }}" = "XDebug" ]; then
          sudo apt-get install libcereal-dev
        fi

    - name: Prepare ccache timestamp
      id: ccache_cache_timestamp
      shell: cmake -P {0}
      run: |
        string(TIMESTAMP current_date "%Y-%m-%d-%H;%M;%S" UTC)
        message("::set-output name=timestamp::${current_date}")

    - name: Setup ccache cache files
      uses: actions/cache@v1.1.0
      with:
        path: ${{github.workspace}}/build/.ccache
        key: ${{ matrix.config.name }}-ccache-${{ steps.ccache_cache_timestamp.outputs.timestamp }}
        restore-keys: |
          ${{ matrix.config.name }}-ccache-

    - name: Configure CMake
      # Use a bash shell so we can use the same syntax for environment variable
      # access regardless of the host operating system
      shell: bash
      working-directory: ${{github.workspace}}/build
      # Note the current convention is to use the -S and -B options here to specify source 
      # and build directories, but this is only available with CMake 3.13 and higher.  
      # The CMake binaries on the Github Actions machines are (as of this writing) 3.12
      run: cmake $GITHUB_WORKSPACE $BUILD_CONFIG

    - name: Build
      working-directory: ${{github.workspace}}/build
      shell: bash
      # Execute the build.  You can specify a specific target with "--target <NAME>"
      run: ccache -p && ccache -z && cmake --build . && ccache -s

    - name: Test
      working-directory: ${{github.workspace}}/build
      shell: bash
      run: cmake --build . --target check-short-madness
