release.yml

name: Release and publish to PyPI
on:
  workflow_dispatch:
    inputs:
      version_number:
        type: string
        required: true
        description: >-
          New version number to publish (do not prefix with "v")

jobs:
  build-release:
    name: Build and release
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Set up Python 3.11
        uses: actions/setup-python@v4
        with:
          python-version: '3.11'

      - name: Install build dependencies
        run: |
          pip install build toml tox

      - name: Update version in pyproject.toml
        shell: python
        run: |
          import toml
          with open("pyproject.toml", "r") as f:
              pyproject = toml.load(f)
          version_number = "${{ inputs.version_number }}"
          assert len(version_number.split(".")) == 3
          assert not version_number.startswith("v")
          pyproject["project"]["version"] = version_number
          with open("pyproject.toml", "w") as f:
              toml.dump(pyproject, f)

      - name: Run tests
        run: tox

      - name: Push tagged version
        run: |
          git config user.name github-actions
          git config user.email github-actions@github.com
          git add pyproject.toml
          git commit -m "Update version for v${{ inputs.version_number }} release"
          git tag v${{ inputs.version_number }}
          git push origin main --tags

      - name: Build
        run: |
          python -m build

      - name: Release
        run: >
          gh release create "v${{ inputs.version_number }}"
            --generate-notes
            --verify-tag