release.yaml

# This is a GitHub workflow defining a set of jobs with a set of steps.
# ref: https://docs.github.com/en/actions/learn-github-actions/workflow-syntax-for-github-actions
#
# Test build of release artifacts (PyPI package) and publish them on pushed git
# tags.
#
name: Release

on:
  pull_request:
    paths-ignore:
      - "**.md"
      - ".github/workflows/*"
      - "!.github/workflows/release.yaml"
  push:
    paths-ignore:
      - "**.md"
      - ".github/workflows/*"
      - "!.github/workflows/release.yaml"
    branches-ignore:
      - "dependabot/**"
      - "pre-commit-ci-update-config"
    tags:
      - "**"
  workflow_dispatch:

jobs:
  build-release:
    runs-on: ubuntu-20.04
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v4
        with:
          python-version: "3.9"

      - name: install build requirements
        run: |
          pip install --upgrade pip
          pip install build twine
          pip list

      - name: build release
        run: |
          python -m build --sdist --wheel .
          ls -l dist

      - name: Publish to PyPI
        if: startsWith(github.ref, 'refs/tags/')
        env:
          TWINE_USERNAME: __token__
          TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
        run: |
          twine upload --skip-existing dist/*