name: Presubmit
on: [push, pull_request]

jobs:
  format:
    name: Code formatting
    runs-on: ubuntu-20.04
    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0
      - name: Install clang-format
        run: sudo apt-get install clang-format clang-format-9
      - name: Check format
        run: ./scripts/check-format.sh
  build:
    needs: format
    name: Build ${{ matrix.os }} ${{ matrix.compiler }} ${{ matrix.deps }}
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-20.04, macos-latest]
        compiler: [gcc, clang]
        deps: [os, fetch, vcpkg]
    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0
          submodules: recursive
      - name: Build
        run: |
            if [[ "${{ matrix.os }}" == "ubuntu-20.04" ]]; then
              sudo apt update
              sudo apt install -y libidn11 libx11-dev libxrandr-dev libxi-dev mesa-common-dev libgl1-mesa-dev libglu1-mesa-dev libudev-dev \
              `if [[ "${{matrix.deps}}" == "os" ]]; then echo libtclap-dev libglm-dev libglew-dev libsfml-dev libstb-dev; fi;`
              if [[ "${{matrix.deps}}" == "vcpkg" ]]; then
                git clone https://github.com/Microsoft/vcpkg.git
                ./vcpkg/bootstrap-vcpkg.sh
                ./vcpkg/vcpkg install sfml tclap glm glew stb
                TOOLCHAIN_ARG="-D CMAKE_TOOLCHAIN_FILE=./vcpkg/scripts/buildsystems/vcpkg.cmake"
              else
                TOOLCHAIN_ARG=""
              fi
              if [[ "${{matrix.deps}}" == "fetch" ]]; then
                sudo apt remove -y libtclap-dev libglm-dev libglew-dev libsfml-dev libstb-dev libfreetype6-dev
              fi
            elif [[ "${{ matrix.os }}" == "macos-latest" ]]; then
              brew install tclap glm glew sfml mesa-glu
              git clone https://github.com/Microsoft/vcpkg.git
              ./vcpkg/bootstrap-vcpkg.sh
              ./vcpkg/vcpkg install stb
              TOOLCHAIN_ARG="-D CMAKE_TOOLCHAIN_FILE=./vcpkg/scripts/buildsystems/vcpkg.cmake"
            fi
            if [[ "${{ matrix.compiler }}" == "gcc" ]]; then
              CC=gcc
              CXX=g++
            elif [[ "${{ matrix.compiler }}" == "clang" ]]; then
              CC=clang
              CXX=clang++
            fi
            cmake \
              -D CMAKE_C_COMPILER=$CC \
              -D CMAKE_CXX_COMPILER=$CXX \
              $TOOLCHAIN_ARG \
              -S . -B build
            cmake \
              --build ./build \
              --verbose \
              --parallel `numproc`
  buildwin:
    needs: format
    name: Build Windows ${{ matrix.deps }}
    runs-on: windows-latest
    strategy:
      matrix:
        deps: [fetch, vcpkg]
    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0
          submodules: recursive
      - name: Build
        shell: pwsh
        run: |
          if ('${{ matrix.deps }}' -eq 'vcpkg') {
            Get-ChildItem Env:\
            & ${env:VCPKG_INSTALLATION_ROOT}\vcpkg.exe --triplet=x64-windows install sfml tclap glm glew stb
            $TOOLCHAIN_ARG="-D CMAKE_TOOLCHAIN_FILE=${env:VCPKG_INSTALLATION_ROOT}\scripts\buildsystems\vcpkg.cmake"
          } else {
            $TOOLCHAIN_ARG=''
          }
          cmake `
            $TOOLCHAIN_ARG `
             -S . -B build
          cmake `
            --build ./build `
            -- `
            /verbosity:minimal `
            /maxCpuCount `
            /noLogo

  python:
    name: Exercise Python examples on ${{matrix.os}}
    strategy:
      matrix:
        os: [ubuntu-latest, macos-latest]
    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/checkout@v2
      - name: Environment setup
        run: |
          MINIFORGE_INSTALL_DIR=.miniforge3
          MINIFORGE_INSTALL_SH="Miniforge3-$(uname)-$(uname -m).sh"
          curl -L -O "https://github.com/conda-forge/miniforge/releases/latest/download/$MINIFORGE_INSTALL_SH"

          bash "$MINIFORGE_INSTALL_SH" -b -p "$MINIFORGE_INSTALL_DIR"
          PATH="$MINIFORGE_INSTALL_DIR/bin/:$PATH" conda update conda --yes --quiet
          PATH="$MINIFORGE_INSTALL_DIR/bin/:$PATH" conda update --all --yes --quiet
          PATH="$MINIFORGE_INSTALL_DIR/bin:$PATH" conda env create --file python/.test-conda-env.yml --name testing --quiet

      - name: Linter
        run: |

          source ".miniforge3/bin/activate" testing
          (cd python && flake8)

      - name: Run examples
        run: |

          source ".miniforge3/bin/activate" testing
          for i in python/*.py; do
            echo "-----------------------------------------------------------------------"
            echo "RUNNING $i"
            echo "-----------------------------------------------------------------------"
            time python $i
          done

  checkruby:
    name: Check Ruby Samples ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest, macos-latest]
    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0
          submodules: recursive
      - name: Install Ruby and POCL
        run: sudo apt update; sudo apt install pocl-opencl-icd
        if: ${{ matrix.os == 'ubuntu-latest' }}
      - name: Install OpenCL Ruby Bindings and RuboCop
        run: gem install --user-install opencl_ruby_ffi rubocop
      - name: Check Ruby Syntax
        run: |
          export PATH=`ruby -r rubygems -e 'puts Gem.user_dir'`/bin:$PATH
          rubocop
        working-directory: ruby
      - name: Run Ruby Samples
        run: rake test
        working-directory: ruby