build_upload_pypi_wheels.yml

name: Build and upload PyPI wheels and source dist

on:
  release:
    types: [published]
  workflow_dispatch:

jobs:
  build:
    strategy:
      matrix:
        os: [windows-latest, macos-latest, ubuntu-latest]
        python-version: ['3.8', '3.9', '3.10', '3.11']
        include:
          - os: windows-latest
            wheelname: win
          - os: macos-latest
            wheelname: macos
          - os: ubuntu-latest
            wheelname: manylinux
          # Build wheels against the lowest compatible Numpy version
          - python-version: 3.8
            manylinux-version-tag: cp38
            numpy-version: 1.19.5
          - python-version: 3.9
            manylinux-version-tag: cp39
            numpy-version: 1.19.5
          - python-version: 3.10
            manylinux-version-tag: cp310
            numpy-version: 1.21.3
          - python-version: 3.11
            manylinux-version-tag: cp311
            numpy-version: 1.23.2
      fail-fast: false
    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0 # Ensure tags are fetched for versioning
      - name: Setup Python ${{ matrix.python-version }} with Conda
        uses: conda-incubator/setup-miniconda@v2
        with:
          python-version: ${{ matrix.python-version }}
          channels: conda-forge,defaults
          channel-priority: true
      - name: Update Python pip, wheel, and twine
        shell: bash -l {0}
        run: |
          python -m pip install --upgrade pip wheel twine
      - name: Install llvm on Macos
        if: startsWith(matrix.os, 'macos')
        run: brew install llvm

      - name: Build Python wheel
        if: matrix.os != 'ubuntu-latest'
        shell: bash -l {0}
        env:
          NUMPY_VERSION: ${{ matrix.numpy-version }}
        run: |
          # Build against lowest required Numpy version
          python -m pip install numpy==${NUMPY_VERSION}
          python -m pip wheel . -w wheelhouse --no-deps

      - name: Build manylinux Python wheel
        if: matrix.os == 'ubuntu-latest'
        uses: pypa/cibuildwheel@v2.12.0
        env:
          CIBW_BUILD: ${{ matrix.manylinux-version-tag}}-manylinux*
          CIBW_BEFORE_BUILD: python -mpip install numpy==${{ matrix.numpy-version }}
          CIBW_ARCHS: x86_64
        with:
          output-dir: wheelhouse

      - name: Create source distribution
        if: matrix.os == 'windows-latest' && matrix.python-version == '3.11'
        shell: bash -l {0}
        run: |
          python setup.py sdist

      - name: Upload as build artifacts
        uses: actions/upload-artifact@v3
        with:
            name: wheels
            path: wheelhouse/*-${{ matrix.wheelname }}*.whl
      - name: Upload source dist to PyPI
        if: github.event_name == 'release' && matrix.os == 'windows-latest' && matrix.python-version == '3.11'
        shell: bash -l {0}
        env:
          TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}
          TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
        run: |
          python -m twine upload dist/*.tar.gz
      - name: Upload wheel to PyPI
        if: github.event_name == 'release'
        shell: bash -l {0}
        env:
          TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}
          TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
          WHEEL_NAME: ${{ matrix.wheelname }}
        run: |
          python -m twine upload wheelhouse/*-${WHEEL_NAME}*.whl