name: macOS

on: [push, pull_request]

jobs:
  build-macos:
    name: AppleClang-C++${{matrix.std}}-${{matrix.build_type}}
    runs-on: macos-10.15
    strategy:
      fail-fast: true
      matrix:
        std: [98, 11, 14, 17, 20]
        include:
          - generator: Ninja
          - build_type: Debug

    steps:
      - uses: actions/checkout@v2

      - name: Setup Ninja
        uses: ashutoshvarma/setup-ninja@master
        with:
          version: 1.10.0

      - name: Setup Dependencies
        run: |
          brew install lcov

      - name: Setup Environment
        if: matrix.build_type == 'Debug'
        run: |
          echo 'CXXFLAGS=--coverage' >> $GITHUB_ENV

      - name: Configure
        shell: bash
        env:
          CXXFLAGS: -Wall -Wextra -Wsign-conversion -Wtautological-compare -Wformat-nonliteral -Wundef -Werror ${{env.CXXFLAGS}}
        run: |
          cmake -S . -B build_${{matrix.build_type}} \
                -DCMAKE_CXX_EXTENSIONS=OFF \
                -DCMAKE_CXX_FLAGS_DEBUG=-pedantic-errors  \
                -DCMAKE_CXX_FLAGS_RELEASE=-pedantic-errors \
                -DCMAKE_CXX_STANDARD=${{matrix.std}} \
                -DCMAKE_CXX_STANDARD_REQUIRED=ON \
                -G "${{matrix.generator}}" \
                -Werror

      - name: Build
        run: |
          cmake --build build_${{matrix.build_type}} \
                --config ${{matrix.build_type}}

      - name: Test
        run: |
          ctest --test-dir build_${{matrix.build_type}} \
                --output-on-failure

      - name: Generate Coverage
        if: matrix.build_type == 'Debug'
        run: |
          lcov --directory . --capture --output-file coverage.info
          lcov --remove coverage.info \
            '*/src/*_unittest.cc' \
            '*/src/googletest.h' \
            '*/src/mock-log.h' \
            '*/usr/*' \
            --output-file coverage.info

          for file in src/glog/*.h.in; do
            name=$(basename ${file})
            name_we=${name%.h.in}
            sed -i "" "s|${{github.workspace}}/glog/${name_we}.h\$|${file}|g" coverage.info
          done

          lcov --list coverage.info

      - name: Upload Coverage to Codecov
        if: matrix.build_type == 'Debug'
        uses: codecov/codecov-action@v2
        with:
          token: ${{ secrets.CODECOV_TOKEN }}
          fail_ci_if_error: true
          verbose: true