build_python.yml

name: Python wheels

on:
  push:
    branches:
    - master
    paths:
    - ".github/workflows/build_python.yml"
    - "**.cpp"
    - "**.h"
    - "**.c"
    - "**.cu"
    - "**.cmake"
    - "**CMakeLists.txt"
    - "**py"
  pull_request:
      branches:
      - master
      paths:
      - ".github/workflows/build_python.yml"
      - "**.cpp"
      - "**.h"
      - "**.c"
      - "**.cu"
      - "**.cmake"
      - "**CMakeLists.txt"
      - "**py"
  
defaults:
  run:
    shell: bash

jobs:
  build_wheels_matrix:
    runs-on: ubuntu-latest
    outputs:
      include: ${{ steps.set-matrix.outputs.include }}
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v4
        with:
          python-version: 3.x
      - run: pip install cibuildwheel==2.17.0  # sync version with pypa/cibuildwheel below
      - id: set-matrix
        env:
          CIBW_PROJECT_REQUIRES_PYTHON: '>=3.7'  # it is missing in setup.py and needed to determine which wheels to build
        run: |
          MATRIX_INCLUDE=$(
            {
              cibuildwheel --print-build-identifiers --platform linux --arch x86_64,aarch64 | grep cp |  jq -nRc '{"only": inputs, "os": "ubuntu-latest"}' \
              && cibuildwheel --print-build-identifiers --platform macos --arch x86_64 | grep cp |  jq -nRc '{"only": inputs, "os": "macos-13"}' \
              && cibuildwheel --print-build-identifiers --platform macos --arch arm64 | grep cp |  jq -nRc '{"only": inputs, "os": "macos-14"}' \
              && cibuildwheel --print-build-identifiers --platform windows --arch AMD64 | grep cp |  jq -nRc '{"only": inputs, "os": "windows-latest"}'
            } | jq -sc
          )
          echo "include=$MATRIX_INCLUDE" >> $GITHUB_OUTPUT

  build_wheels:
    needs: build_wheels_matrix
    runs-on: ${{ matrix.os }}
    name: Build ${{ matrix.only }}

    strategy:
      fail-fast: false
      matrix:
        include: ${{ fromJson(needs.build_wheels_matrix.outputs.include) }}

    steps:
    - uses: actions/checkout@v4
    
    - name: Disable gui support
      run: |
        sed -i'' -e "s/_cmake_extra_options = \[\]/_cmake_extra_options = \['-DDLIB_NO_GUI_SUPPORT=ON'\]/" setup.py
          
    - name: Set up QEMU
      if: runner.os == 'Linux'
      uses: docker/setup-qemu-action@v3

    - name: Build wheel
      uses: pypa/cibuildwheel@v2.17.0  # sync version with pip install cibuildwheel above
      with:
        only: ${{ matrix.only }}
      env:
        CIBW_BUILD_VERBOSITY: 1
        CIBW_TEST_REQUIRES: pytest numpy
        CIBW_TEST_COMMAND: python -m pytest {project}/tools/python/test --ignore docs --ignore dlib

    - name: Artifacts
      uses: actions/upload-artifact@v4
      with:
        name: dist-${{ matrix.only }}
        path: wheelhouse/*.whl


# Disabled for now since something is going sideways with python packages on github actions
# MacOS:
#   runs-on: 'macos-latest'
#   steps:
#   - uses: actions/checkout@v3
#   - uses: actions/setup-python@v4
#   - name: Install python deps
#     run: pip3 install pytest numpy
#   - name: Build
#     run: |
#       python3 setup.py build
#       python3 setup.py install --user
#   - name: Test
#     run: python3 -m pytest --ignore docs --ignore dlib