publish-pypi.yml

name: Publish tagged releases to PyPI

on:
  release:
    types:
      - created

jobs:
  build:
    name: Build source distribution
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v3
        with:
          python-version: "3.10"

      - name: Install dependencies
        run: python3 -m pip install --upgrade build

      - name: Build
        run: python3 -m build

      - name: Upload source distribution artifact
        uses: actions/upload-artifact@v4
        with:
          name: artifact
          path: dist/*

  test:
    name: Upload release to test PyPI
    needs: [build]
    runs-on: ubuntu-latest
    steps:
      - name: Download source distribution artifact
        uses: actions/download-artifact@v4
        with:
          name: artifact
          path: dist

      - name: Set up Python
        uses: actions/setup-python@v3
        with:
          python-version: "3.10"

      - name: Install twine
        run: python3 -m pip install --upgrade twine

      - name: Publish library
        env:
          TWINE_USERNAME: __token__
          TWINE_PASSWORD: ${{ secrets.TEST_PYPI_TOKEN }}
        run: python3 -m twine upload --skip-existing --repository testpypi dist/*

      - name: Test pip install from test.pypi
        run: |
          python -m venv venv-test-pypi
          venv-test-pypi/bin/python -m pip install --index-url https://test.pypi.org/simple/ --extra-index-url https://pypi.org/simple bambi
          venv-test-pypi/bin/python -c "import bambi; assert bambi.__version__ == '${{  github.ref_name }}'"

  publish:
    name: Upload release to PyPI
    needs: [build, test]
    runs-on: ubuntu-latest
    steps:
      - name: Download source distribution artifact
        uses: actions/download-artifact@v4
        with:
          name: artifact
          path: dist

      - name: Set up Python
        uses: actions/setup-python@v3
        with:
          python-version: "3.10"

      - name: Install twine
        run: python3 -m pip install --upgrade twine

      - name: Publish library
        env:
          TWINE_USERNAME: __token__
          TWINE_PASSWORD: ${{ secrets.PYPI_TOKEN }}
        run: python3 -m twine upload dist/*

# See documentation on accesing the tag from the release
# Look for 'github.ref' and 'github.ref_name' in https://docs.github.com/en/actions/learn-github-actions/contexts 
# On October, 2023 it says "For workflows triggered by release, this is the release tag created"
# So 'github.ref_name' should be the version number of the release we're making.