build.yml

name: Build

on: [push]

env:
  CUDA_BIN: /usr/local/cuda/bin

jobs:
  build:
    name: ${{ matrix.os }} (${{ matrix.config }})
    runs-on: ${{ matrix.os }}
    
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-20.04, ubuntu-18.04]
        config: [Release, Debug]
        cuda: [on, off]

    steps:
    - uses: actions/checkout@v2
    
    - name: Install Dependencies
      run: |
        sudo apt update
        sudo apt install \
                          libarmadillo-dev \
                          libeigen3-dev \
                          libcgal-dev \
                          libsuitesparse-dev \
                          libopenblas-dev \
                          libglew-dev \
                          libglfw3-dev \
                          libglm-dev \
                          cimg-dev
                          
    - name: Install Cuda
      if: ${{ matrix.cuda }} == 'on'
      run: |
        wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64/cuda-ubuntu2004.pin
        sudo mv cuda-ubuntu2004.pin /etc/apt/preferences.d/cuda-repository-pin-600
        sudo apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64/7fa2af80.pub
        sudo add-apt-repository "deb https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64/ /"
        sudo apt update
        sudo apt -y install cuda
      
    - name: Create Build Environment
      # Some projects don't allow in-source building, so create a separate build directory
      # We'll use this as our working directory for all subsequent commands
      run: cmake -E make_directory ${{runner.workspace}}/build

    - name: Configure CMake
      # Use a bash shell so we can use the same syntax for environment variable
      # access regardless of the host operating system
      shell: bash
      working-directory: ${{runner.workspace}}/build
      # Note the current convention is to use the -S and -B options here to specify source 
      # and build directories, but this is only available with CMake 3.13 and higher.  
      # The CMake binaries on the Github Actions machines are (as of this writing) 3.12
      run: |
        export PATH=${CUDA_BIN}:${PATH}
        cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=${{ matrix.config }}

    - name: Build
      working-directory: ${{runner.workspace}}/build
      shell: bash
      # Execute the build.  You can specify a specific target with "--target <NAME>"
      run: cmake --build . --config ${{ matrix.config }}