name: cpu-build-and-test

on:
  push:
    paths-ignore:
      - '**.md'
      - 'images/**'
  pull_request:
    paths-ignore:
      - '**.md'
      - 'images/**'

jobs:
  build:
    name: Build and test

    strategy:
      matrix:
        config: [ '', '-DPBRT_DBG_LOGGING=True', '-DPBRT_FLOAT_AS_DOUBLE=True' ]
        os: [ ubuntu-20.04, macos-latest, windows-latest ]
      fail-fast: false

    runs-on: ${{ matrix.os }}

    steps:
    - name: Checkout pbrt
      uses: actions/checkout@v2
      with:
        submodules: true

    - name: Checkout rgb2spectrum tables
      uses: actions/checkout@v2
      with:
        repository: mmp/rgb2spectrum
        path: build
      
    - name: Get cmake
      uses: lukka/get-cmake@latest

    - name: Configure
      run: |
        cd build
        cmake .. -DPBRT_USE_PREGENERATED_RGB_TO_SPECTRUM_TABLES=True ${{ matrix.config }}
      
    - name: Build (Ubuntu/MacOS)
      if: ${{ matrix.os == 'ubuntu-20.04' || matrix.os == 'macos-latest' }}
      run: cmake --build build --parallel --config Release -- -j 3
      
    - name: Build (Windows)
      if: ${{ matrix.os == 'windows-latest' }}
      run: cmake --build build --parallel --config Release

    - name: Test (Ubuntu/MacOS)
      if: ${{ (matrix.os == 'ubuntu-20.04' || matrix.os == 'macos-latest') && matrix.config == '' }}
      run: ./pbrt_test
      working-directory: build

    - name: Test (Windows)
      if: ${{ matrix.os == 'windows-latest' && matrix.config == '' }}
      run: .\Release\pbrt_test.exe
      working-directory: build