c_python_build.yml

# Workflow to build the parallelproj C/CUDA libs (incl. installation of CUDA)
name: Build C/python

on:
  push:
    branches: [ "master" ]
  pull_request:
    branches: [ "master" ]
    paths-ignore:
      - 'README.md'
      - 'CHANGELOG.md'
      - 'docs/**'

env:
  # Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
  BUILD_TYPE: Release

jobs:
  build:
    # The CMake configure and build commands are platform agnostic and should work equally well on Windows or Mac.
    # You can convert this to a matrix build if you need cross-platform coverage.
    # See: https://docs.github.com/en/free-pro-team@latest/actions/learn-github-actions/managing-complex-workflows#using-a-build-matrix
    runs-on: ${{ matrix.os }}
    env:
      MPLBACKEND: Agg  # https://github.com/orgs/community/discussions/26434

    strategy:
      matrix:
        os: [ubuntu-latest, windows-latest, macos-latest]
        python-version: [3.13]
        numpy-version: [latest]
        include:
          - python-version: 3.9
            numpy-version: 1.23
            os: ubuntu-latest

    steps:
    - uses: actions/checkout@v4

    - name: Install openmp on macOS
      if: runner.os == 'macOS'
      run: |
        brew update
        brew install llvm libomp  # Install OpenMP
        echo "CC=/opt/homebrew/opt/llvm/bin/clang" >> $GITHUB_ENV
        echo "CXX=/opt/homebrew/opt/llvm/bin/clang++" >> $GITHUB_ENV

    - name: Configure CMake
      # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.
      # See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html?highlight=cmake_build_type
      run: cmake -B ${{github.workspace}}/build -DCMAKE_INSTALL_PREFIX=${{github.workspace}}/libparallelproj_install -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}

    - name: Build C/CUDA libs with CMake
      # Build your program with the given configuration
      run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}} --target install

    - name: Set up Python
      uses: actions/setup-python@v4
      with:
        python-version: ${{ matrix.python-version }}

    - name: Install build and setuptools
      run: |
        python -m pip install --upgrade pip
        pip install setuptools wheel
        pip install build

    - name: Build the package
      run: |
        python -m build

    - name: Install numpy
      shell: bash 
      run: |
        if [ "${{ matrix.numpy-version }}" = "latest" ]; then
          pip install numpy
        else
          pip install numpy==${{ matrix.numpy-version }}
        fi

    - name: Install the package
      shell: bash 
      run: |
        pip install dist/*.whl
    
    - name: Install tests dependencies
      run: |
        pip install pytest pytest-cov
        pip install array-api-strict~=2.0

    - if: matrix.os == 'ubuntu-latest'
      name: Run Tests
      run: |
        pytest tests -vv --cov-report term-missing --cov parallelproj  --cov-fail-under=100
      env: 
        PARALLELPROJ_C_LIB: ${{github.workspace}}/libparallelproj_install/lib/libparallelproj_c.so

    - if: matrix.os == 'macos-latest'
      name: Run Tests
      run: |
        pytest tests -vv --cov-report term-missing --cov parallelproj  --cov-fail-under=100
      env: 
        PARALLELPROJ_C_LIB: ${{github.workspace}}/libparallelproj_install/lib/libparallelproj_c.dylib

    - if: matrix.os == 'windows-latest'
      name: Run Tests
      run: |
        pytest tests -vv --cov-report term-missing --cov parallelproj  --cov-fail-under=100
      env: 
        PARALLELPROJ_C_LIB: ${{github.workspace}}\libparallelproj_install\bin\parallelproj_c.dll