name: CI
on: ['push', 'pull_request']

jobs:
  build:
    name: Build and Test
    strategy:
      matrix:
        os:
          - macos-10.15
        compiler:
          - cxx: g++-7
            cc: gcc-7
            homebrew_package: gcc@7
          - cxx: g++-8
            cc: gcc-8
            homebrew_package: gcc@8
          - cxx: g++-9
            cc: gcc-9
            homebrew_package: gcc@9
#           - cxx: g++-10
#             cc: gcc-10
#             homebrew_package: gcc@10
        build_type:
          - Debug
          - Release
          - RelWithDebInfo
    runs-on: ${{matrix.os}}
    env:
      # Setting conan cache dir to a location where our Github Cache Action can find it
      CONAN_USER_HOME: "${{ github.workspace }}/conan-cache/"
    steps:
      - name: Checkout
        uses: actions/checkout@v1
      #TODO Ideally, the Find pip cache location + Setup pip cache step would be part of the setup action that runs pip, but Github doesn't support nested actions yet, see https://github.com/actions/runner/issues/862
      - name: Find pip cache location
        id: pip_cache_dir
        run: |
          echo "::set-output name=pip_cache_dir::$(pip3 cache dir)"
        shell: bash
      - name: Setup pip cache
        uses: actions/cache@v2
        with:
          path: ${{ steps.pip_cache_dir.outputs.pip_cache_dir }}
          key: v0-${{ runner.os }}-setup-pip-${{ github.run_number }}
          restore-keys: v0-${{ runner.os }}-setup-pip-
      - name: Setup
        uses: ./.github/workflows/actions/osx_setup
        with:
          compiler_homebrew_package: ${{ matrix.compiler.homebrew_package }}
      #TODO Ideally, the Setup ccache step would be part of the build action, but Github doesn't support nested actions yet, see https://github.com/actions/runner/issues/862
      - name: Setup ccache
        uses: hendrikmuhs/ccache-action@7a464b8f54f1e1b78e7eb9d0272bc83072959235 # ccache-action@v1.0.3
        with:
          key: "v0-${{ runner.os }}-ccache__${{matrix.os}}__${{matrix.compiler.cxx}}__${{matrix.compiler.cc}}__${{matrix.build_type}}__"
      - name: Configure ccache
        shell: bash
        run: ccache --set-config=compiler_check=content
      # TODO Ideally, the Setup conan cache step would be part of the build action, but Github doesn't support nested actions yet, see https://github.com/actions/runner/issues/862
      - name: Setup conan cache
        uses: actions/cache@v2
        with:
          path: ${{ env.CONAN_USER_HOME }}
          key: "v0-${{ runner.os }}-conancache__${{matrix.os}}__${{matrix.compiler.cxx}}__${{matrix.compiler.cc}}__${{matrix.build_type}}__-${{ github.run_number }}"
          restore-keys: "v0-${{ runner.os }}-conancache__${{matrix.os}}__${{matrix.compiler.cxx}}__${{matrix.compiler.cc}}__${{matrix.build_type}}__-"
      - name: Build
        uses: ./.github/workflows/actions/run_build
        with:
          cxx: ${{ matrix.compiler.cxx }}
          cc: ${{ matrix.compiler.cc }}
          build_type: ${{ matrix.build_type }}
      - name: Test
        uses: ./.github/workflows/actions/run_tests