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

jobs:
  build:
    name: CI
    strategy:
      fail-fast: false
      matrix:
        os:
          - macos-10.15
          - ubuntu-18.04
          - ubuntu-20.04
        compiler:
          - cxx: g++-7
            cc: gcc-7
            macos_cxx: g++-7
            macos_cc: gcc-7
            homebrew_package: gcc@7
            apt_package: g++-7
          - cxx: g++-8
            cc: gcc-8
            macos_cxx: g++-8
            macos_cc: gcc-8
            homebrew_package: gcc@8
            apt_package: g++-8
          - cxx: g++-9
            cc: gcc-9
            macos_cxx: g++-9
            macos_cc: gcc-9
            apt_package: g++-9
            homebrew_package: gcc@9
#           - cxx: g++-10
#             cc: gcc-10
#             macos_cxx: g++-10
#             macos_cc: gcc-10
#             apt_package: g++-10
#             homebrew_package: gcc@10
          - cxx: clang++-7
            cc: clang-7
            macos_cxx: /usr/local/opt/llvm@7/bin/clang++
            macos_cc: /usr/local/opt/llvm@7/bin/clang
            apt_package: clang-7
            homebrew_package: llvm@7
          - cxx: clang++-8
            cc: clang-8
            macos_cxx: /usr/local/opt/llvm@8/bin/clang++
            macos_cc: /usr/local/opt/llvm@8/bin/clang
            apt_package: clang-8
            homebrew_package: llvm@8
          - cxx: clang++-9
            cc: clang-9
            macos_cxx: /usr/local/opt/llvm@9/bin/clang++
            macos_cc: /usr/local/opt/llvm@9/bin/clang
            apt_package: clang-9
            homebrew_package: llvm@9
          # TODO Clang-10 on linux? macos homebrew doesn't seem to have it
          - cxx: clang++-11
            cc: clang-11
            macos_cxx: /usr/local/opt/llvm@11/bin/clang++
            macos_cc: /usr/local/opt/llvm@11/bin/clang
            apt_package: clang-11
            homebrew_package: llvm@11
          # Apple Clang
#           - cxx: clang++
#             cc: clang
#             homebrew_package: ""
        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, all the setup actions would be in their own subaction, but Github doesn't support using third party actions (e.g. cache) from nested actions yet, see https://github.com/actions/runner/issues/862
      - name: Install OSX dependencies
        if: ${{ runner.os == 'macOS' }}
        shell: bash
        run: |
          brew install ninja macfuse libomp ccache ${{matrix.compiler.homebrew_package}}
      - name: Install Linux dependencies
        if: ${{ runner.os == 'Linux' }}
        shell: bash
        run: |
          if [[ "${{matrix.os}}" == "ubuntu-18.04" ]]; then
            echo Adding apt repositories for newer clang versions on Ubuntu 18.04
            wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
            # TODO Test if going back to a here doc works
            sudo touch /etc/apt/sources.list.d/clang.list
            sudo chmod o+w /etc/apt/sources.list.d/clang.list
            echo "deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-11 main" >> /etc/apt/sources.list.d/clang.list
            echo "deb-src http://apt.llvm.org/bionic/ llvm-toolchain-bionic-11 main" >> /etc/apt/sources.list.d/clang.list
            echo "deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-12 main" >> /etc/apt/sources.list.d/clang.list
            echo "deb-src http://apt.llvm.org/bionic/ llvm-toolchain-bionic-12 main" >> /etc/apt/sources.list.d/clang.list
            sudo chmod o-w /etc/apt/sources.list.d/clang.list
          elif [[ "${{matrix.os}}" == "ubuntu-20.04" ]]; then
            echo Adding apt repositories for newer clang versions on Ubuntu 20.04
            wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
            sudo touch /etc/apt/sources.list.d/clang.list
            sudo chmod o+w /etc/apt/sources.list.d/clang.list
            echo "deb http://apt.llvm.org/focal/ llvm-toolchain-focal-11 main" >> /etc/apt/sources.list.d/clang.list
            echo "deb-src http://apt.llvm.org/focal/ llvm-toolchain-focal-11 main" >> /etc/apt/sources.list.d/clang.list
            echo "deb http://apt.llvm.org/focal/ llvm-toolchain-focal-12 main" >> /etc/apt/sources.list.d/clang.list
            echo "deb-src http://apt.llvm.org/focal/ llvm-toolchain-focal-12 main" >> /etc/apt/sources.list.d/clang.list
            sudo chmod o-w /etc/apt/sources.list.d/clang.list
          fi
          sudo apt-get update
          sudo apt-get install ninja-build libcurl4-openssl-dev libfuse-dev ccache ${{matrix.compiler.apt_package}}
      - name: Find pip cache location
        id: pip_cache_dir
        run: |
          # We need at least pip 20.1 to get the "pip cache dir" command. Ubuntu doesn't have pip 20.1 by default yet, let's upgrade it
          python3 -m pip install -U pip
          python3 -m pip --version
          echo "::set-output name=pip_cache_dir::$(python3 -m pip cache dir)"
        shell: bash
      - name: Retrieve pip cache
        # We're using an S3 based cache because the standard GitHub Action cache (actions/cache) only gives us 5GB of storage and we need more
        uses: leroy-merlin-br/action-s3-cache@8d75079437b388688b9ea9c7d73dff4ef975c5fa # v1.0.5
        with:
          action: get
          aws-access-key-id: ${{ secrets.CACHE_AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.CACHE_AWS_SECRET_ACCESS_KEY }}
          aws-region: ${{ secrets.CACHE_AWS_REGION }}
          bucket: ${{ secrets.CACHE_AWS_S3_BUCKET }}
          key: v0-${{ runner.os }}-${{ matrix.os }}-setup-pip
      - name: Install Conan
        shell: bash
        run: |
          # Using "python3 -m pip" instead of "pip3" to make sure we get the same pip that we queried the cache dir for the Github Cache action
          if [[ "${{matrix.os}}" == "ubuntu-18.04" ]]; then
            python3 -m pip install setuptools
          fi
          python3 -m pip install conan
          conan profile new default --detect
          conan profile update settings.compiler.libcxx=libstdc++11 default
      - name: Save pip cache
        uses: leroy-merlin-br/action-s3-cache@8d75079437b388688b9ea9c7d73dff4ef975c5fa # v1.0.5
        with:
          action: put
          aws-access-key-id: ${{ secrets.CACHE_AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.CACHE_AWS_SECRET_ACCESS_KEY }}
          aws-region: ${{ secrets.CACHE_AWS_REGION }}
          bucket: ${{ secrets.CACHE_AWS_S3_BUCKET }}
          key: v0-${{ runner.os }}-${{ matrix.os }}-setup-pip
          artifacts: ${{ steps.pip_cache_dir.outputs.pip_cache_dir }}
      - name: Configure ccache
        shell: bash
        run: |
          set -v
          ccache --set-config=compiler_check=content
          ccache --set-config=max_size=500M
          ccache --set-config=cache_dir=${{github.workspace}}/.ccache
          ccache --set-config=compression=true
          echo CCache config:
          ccache -p
          echo Clearing ccache statistics
          ccache -z
      #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: Retrieve ccache cache
        # We're using an S3 based cache because the standard GitHub Action cache (actions/cache) only gives us 5GB of storage and we need more
        uses: leroy-merlin-br/action-s3-cache@8d75079437b388688b9ea9c7d73dff4ef975c5fa # v1.0.5
        with:
          action: get
          aws-access-key-id: ${{ secrets.CACHE_AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.CACHE_AWS_SECRET_ACCESS_KEY }}
          aws-region: ${{ secrets.CACHE_AWS_REGION }}
          bucket: ${{ secrets.CACHE_AWS_S3_BUCKET }}
          key: v0-${{ runner.os }}-${{ matrix.os }}-ccache__${{matrix.compiler.cxx}}__${{matrix.compiler.cc}}__${{matrix.build_type}}__
      - name: Show ccache statistics
        shell: bash
        run: |
          set -v
          ccache -s
      # 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: Retrieve conan cache
        # We're using an S3 based cache because the standard GitHub Action cache (actions/cache) only gives us 5GB of storage and we need more
        uses: leroy-merlin-br/action-s3-cache@8d75079437b388688b9ea9c7d73dff4ef975c5fa # v1.0.5
        with:
          action: get
          aws-access-key-id: ${{ secrets.CACHE_AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.CACHE_AWS_SECRET_ACCESS_KEY }}
          aws-region: ${{ secrets.CACHE_AWS_REGION }}
          bucket: ${{ secrets.CACHE_AWS_S3_BUCKET }}
          key: v0-${{ runner.os }}-${{ matrix.os }}-conancache__${{matrix.compiler.cxx}}__${{matrix.compiler.cc}}__${{matrix.build_type}}__
      - name: Build (macOS)
        if: ${{ runner.os == 'macOS' }}
        uses: ./.github/workflows/actions/run_build
        with:
          cxx: ${{ matrix.compiler.macos_cxx }}
          cc: ${{ matrix.compiler.macos_cc }}
          build_type: ${{ matrix.build_type }}
      - name: Build (Linux)
        if: ${{ runner.os == 'Linux' }}
        uses: ./.github/workflows/actions/run_build
        with:
          cxx: ${{ matrix.compiler.cxx }}
          cc: ${{ matrix.compiler.cc }}
          build_type: ${{ matrix.build_type }}
      - name: Show ccache statistics
        shell: bash
        run: |
          set -v
          ccache -s
      - name: Reduce ccache size
        if: ${{ runner.os == 'macOS' }}
        shell: bash
        run: |
          set -v
          ccache --evict-older-than 7d
          ccache -s
      - name: Save ccache cache
        uses: leroy-merlin-br/action-s3-cache@8d75079437b388688b9ea9c7d73dff4ef975c5fa # v1.0.5
        with:
          action: put
          aws-access-key-id: ${{ secrets.CACHE_AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.CACHE_AWS_SECRET_ACCESS_KEY }}
          aws-region: ${{ secrets.CACHE_AWS_REGION }}
          bucket: ${{ secrets.CACHE_AWS_S3_BUCKET }}
          key: v0-${{ runner.os }}-${{ matrix.os }}-ccache__${{matrix.compiler.cxx}}__${{matrix.compiler.cc}}__${{matrix.build_type}}__
          artifacts: ${{ github.workspace }}/.ccache
      - name: Save conan cache
        uses: leroy-merlin-br/action-s3-cache@8d75079437b388688b9ea9c7d73dff4ef975c5fa # v1.0.5
        with:
          action: put
          aws-access-key-id: ${{ secrets.CACHE_AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.CACHE_AWS_SECRET_ACCESS_KEY }}
          aws-region: ${{ secrets.CACHE_AWS_REGION }}
          bucket: ${{ secrets.CACHE_AWS_S3_BUCKET }}
          key: v0-${{ runner.os }}-${{ matrix.os }}-conancache__${{matrix.compiler.cxx}}__${{matrix.compiler.cc}}__${{matrix.build_type}}__
          artifacts: ${{ env.CONAN_USER_HOME }}
      - name: Test
        uses: ./.github/workflows/actions/run_tests