release.yml

name: Build and publish release

# Triggers on any tag matching v1.2.3 style (e.g. v3.0.0), or can be run
# manually from the Actions tab for a dry run without pushing a tag.
on:
  push:
    tags:
      - 'v*.*.*'
  workflow_dispatch:

permissions:
  contents: write  # needed to create the GitHub Release and upload assets

jobs:
  build-and-release:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.12'

      - name: Install build tool
        run: python -m pip install --upgrade build

      - name: Clean dist/ before building (avoid re-attaching old committed releases)
        run: rm -rf dist

      - name: Build sdist and wheel
        run: python -m build

      - name: Upload build artifacts (workflow run, for manual dry-runs)
        uses: actions/upload-artifact@v4
        with:
          name: dist
          path: dist/*

      - name: Create GitHub Release with dist files attached
        if: startsWith(github.ref, 'refs/tags/')
        uses: softprops/action-gh-release@v2
        with:
          files: dist/*
          generate_release_notes: true