build_wheels.yml

# https://github.com/pypa/cibuildwheel/blob/main/examples/github-deploy.yml
# except no Windows
name: build

# Build on every branch push, tag push, and pull request change:
on: [push, pull_request]
# Alternatively, to publish when a (published) GitHub Release is created, use the following:
# on:
#   push:
#   pull_request:
#   release:
#     types:
#       - published

jobs:
  build_and_test:
    name: Build executable and run test
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3

      - name: Build
        run: |
          mkdir build
          cd build
          cmake ..
          make -j

      - name: Test
        run: |
          cd build
          ctest --no-tests=error --output-on-failure

      - uses: actions/upload-artifact@v3
        with:
          name: executable
          path: ./build/executable/dbscan

  generate_matrix:
    name: Generate Matrix
    runs-on: ubuntu-latest

    outputs:
      OSES: ${{ steps.development.outputs.OSES || steps.production.outputs.OSES }}
      CIBW_ARCHS_LINUX: ${{ steps.development.outputs.CIBW_ARCHS_LINUX || steps.production.outputs.CIBW_ARCHS_LINUX }}

    steps:
    - name: Development
      id: development
      if: "!startsWith(github.ref, 'refs/tags/v')"
      run: |
        echo 'OSES=["ubuntu-latest"]' >> $GITHUB_OUTPUT
        echo 'CIBW_ARCHS_LINUX="auto"' >> $GITHUB_OUTPUT

    - name: Production
      id: production
      if: startsWith(github.ref, 'refs/tags/v')
      run: |
        echo 'OSES=["ubuntu-latest", "macos-latest", "windows-latest"]' >> $GITHUB_OUTPUT
        echo 'CIBW_ARCHS_LINUX="auto aarch64"' >> $GITHUB_OUTPUT

  build_wheels:
    needs: [generate_matrix]
    name: Build wheels on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    if: github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/tags/v')
    strategy:
      matrix:
        os: ${{ fromJson(needs.generate_matrix.outputs.OSES) }}

    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Set up QEMU
        if: runner.os == 'Linux' && startsWith(github.ref, 'refs/tags/v')
        uses: docker/setup-qemu-action@v2
        with:
          platforms: all

      - name: Build wheels
        uses: pypa/cibuildwheel@v2.11.2
        env:
          CIBW_ARCHS_MACOS: "x86_64 arm64"
          CIBW_ARCHS_LINUX: ${{ fromJson(needs.generate_matrix.outputs.CIBW_ARCHS_LINUX) }}
          CIBW_TEST_REQUIRES: pytest
          CIBW_TEST_EXTRAS: "py36"
          CIBW_TEST_COMMAND: "pytest {package}/test"

      - uses: actions/upload-artifact@v3
        with:
          name: wheels
          path: ./wheelhouse/*.whl

  build_sdist:
    name: Build source distribution
    runs-on: ubuntu-latest
    if: startsWith(github.ref, 'refs/tags/v')
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Build sdist
        run: pipx run build --sdist

      - uses: actions/upload-artifact@v3
        with:
          name: wheels
          path: dist/*.tar.gz

  upload_pypi:
    needs: [build_wheels, build_sdist]
    runs-on: ubuntu-latest
    # upload to PyPI on every tag starting with 'v'
    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
    # alternatively, to publish when a GitHub Release is created, use the following rule:
    # if: github.event_name == 'release' && github.event.action == 'published'
    steps:
      - uses: actions/download-artifact@v3
        with:
          # unpacks default artifact into dist/
          # if `name: artifact` is omitted, the action will create extra parent dir
          name: wheels
          path: dist

      - uses: pypa/gh-action-pypi-publish@v1.5.0
        with:
          user: __token__
          password: ${{ secrets.PYPI_API_TOKEN }}
          # To test: repository_url: https://test.pypi.org/legacy/