release.yml

name: Release

# Build the sdist + wheel on every tag, validate them, and publish to PyPI via
# Trusted Publishing (OIDC — no long-lived API token stored in the repo). The
# publish job is gated on the ``pypi`` GitHub Environment, so it does nothing
# until a maintainer configures that environment and the matching Trusted
# Publisher on PyPI; until then tagging still produces validated, downloadable
# artifacts without pushing anything to the index.

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

permissions:
  contents: read

jobs:
  build:
    name: build + validate distributions
    runs-on: ubuntu-24.04
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: "3.12"
      - name: Install build tooling
        run: python -m pip install -e .[release]
      - name: Build sdist and wheel
        run: python -m build
      - name: Verify tag matches package version
        if: startsWith(github.ref, 'refs/tags/')
        run: |
          version="$(python -c 'import importlib.metadata as m; print(m.version("pyisolate"))')"
          tag="${GITHUB_REF_NAME#v}"
          if [ "$version" != "$tag" ]; then
            echo "tag $tag does not match package version $version" >&2
            exit 1
          fi
      - name: Check distribution metadata
        run: python -m twine check dist/*
      - name: Capture release provenance
        run: pyisolate-doctor --json > dist/provenance.json || true
      - name: Upload distributions
        uses: actions/upload-artifact@v4
        with:
          name: dist
          path: dist/

  publish:
    name: publish to PyPI (Trusted Publishing)
    needs: build
    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/')
    runs-on: ubuntu-24.04
    environment:
      name: pypi
      url: https://pypi.org/project/pyisolate/
    permissions:
      id-token: write # required for OIDC Trusted Publishing
    steps:
      - name: Download built distributions
        uses: actions/download-artifact@v4
        with:
          name: dist
          path: dist/
      - name: Remove non-distribution artifacts
        run: rm -f dist/provenance.json
      - name: Publish to PyPI
        uses: pypa/gh-action-pypi-publish@release/v1