ubuntu-build.yml

on:
  pull_request:
    branches:
      - master

jobs:
  build:
    strategy:
      matrix:
        compiler: [gcc, clang]
        build_type: [Debug, Release]
        lto_config:
          - lto: false
            full_lto: false
          - lto: true
            full_lto: false
          - lto: true
            full_lto: true
        exclude:
          # Don't try to build Debug with LTO enabled
          - build_type: Debug
            lto_config:
              lto: true
          # GCC doesn't have a thin LTO mode
          - compiler: gcc
            build_type: Release 
            lto_config:
              lto: true
              full_lto: false

    env:
      CC: ${{ matrix.compiler }}
      CXX: ${{ matrix.compiler == 'gcc' && 'g++' || 'clang++' }}
      LTO_CONFIG: ${{ matrix.build_type == 'Release' && format('-DNO_STF_LTO={0}, !matrix.lto_config.lto) || '' }}
      CLANG_FULL_LTO_CONFIG: ${{ (matrix.compiler == 'clang' && matrix.build_type == 'Release') && format('-DFULL_LTO={1}', matrix.lto_config.full_lto) || '' }}

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v4

    - name: Install Dependencies
      run: |
        sudo apt-get update
        sudo apt-get -y install libboost-dev cython3

    - name: Install Clang
      run: |
        sudo apt-get -y install clang lld llvm
      if: ${{ matrix.compiler == 'clang' }}

    - name: Create Build Directory
      run: cmake -E make_directory ${{runner.workspace}}/build

    - name: Configure CMAKE
      working-directory: ${{runner.workspace}}/build
      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} -DBUILD_STF_PYTHON_LIB=ON $LTO_CONFIG $CLANG_FULL_LTO_CONFIG

    - name: Build
      working-directory: ${{runner.workspace}}/build
      run: cmake --build . --config ${{ matrix.build_type }} -j 4

    - name: Regress
      working-directory: ${{runner.workspace}}/build
      run: cmake --build . --config ${{ matrix.build_type }} -j 4 --target regress