release.yml

name: release

on:
  push:
    tags:
      - "v*"
  workflow_dispatch:

permissions:
  contents: write
  id-token: write   # for PyPI Trusted Publishing (no API token needed)

jobs:
  build:
    name: build sdist + wheel
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - uses: actions/setup-python@v5
        with:
          python-version: "3.12"
      - name: install build tools
        run: |
          python -m pip install --upgrade pip
          pip install build twine
      - name: build distributions
        run: python -m build
      - name: check distributions
        run: twine check dist/*
      - uses: actions/upload-artifact@v4
        with:
          name: dist
          path: dist/

  pypi-publish:
    name: publish to PyPI
    needs: build
    runs-on: ubuntu-latest
    environment:
      name: pypi
      url: https://pypi.org/p/codameter
    if: startsWith(github.ref, 'refs/tags/v')
    steps:
      - uses: actions/download-artifact@v4
        with:
          name: dist
          path: dist/
      - uses: pypa/gh-action-pypi-publish@release/v1
        # Trusted publishing: no token; configure under PyPI account.

  github-release:
    name: create GitHub release (Zenodo hooks off this)
    needs: build
    runs-on: ubuntu-latest
    if: startsWith(github.ref, 'refs/tags/v')
    steps:
      - uses: actions/checkout@v4
      - uses: actions/download-artifact@v4
        with:
          name: dist
          path: dist/
      - name: extract tag
        id: tag
        run: echo "version=${GITHUB_REF#refs/tags/}" >> "$GITHUB_OUTPUT"
      - name: create GitHub release
        uses: softprops/action-gh-release@v2
        with:
          name: ${{ steps.tag.outputs.version }}
          generate_release_notes: true
          files: dist/*
        # The Zenodo GitHub integration mints a DOI when a Release is
        # created — no extra step here.