build.yml

env:
  CIBW_BEFORE_ALL: "python -m pip install cython"
  CIBW_BUILD: "cp36-* cp37-* cp38-*"

name: Build and upload to PyPI

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

jobs:
  build_wheels:
    name: Build wheels on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-18.04, windows-latest, macos-latest]

    steps:
      - uses: actions/checkout@v2

      - uses: actions/setup-python@v2
        name: Install Python
        with:
          python-version: '3.7'

      - name: Install cibuildwheel
        run: |
          python -m pip install cibuildwheel==1.4.2

      - name: Install Visual C++ for Python 2.7
        if: runner.os == 'Windows'
        run: |
          choco install vcpython27 -f -y

      - name: Build wheels
        run: |
          python -m cibuildwheel --output-dir wheelhouse

      - uses: actions/upload-artifact@v2
        with:
          path: ./wheelhouse/*.whl

  build_sdist:
    name: Build source distribution
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2

      - uses: actions/setup-python@v2
        name: Install Python
        with:
          python-version: '3.7'

      - name: Build sdist
        run: "python -m pip install cython numpy; python setup.py sdist"

      - uses: actions/upload-artifact@v2
        with:
          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.event.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@v2
        with:
          name: artifact
          path: dist

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