publish.yml

name: Release

on:
  workflow_run:
    workflows: ["Validate Release"]
    types:
      - completed
    branches: [main]

permissions:
  contents: write
  id-token: write

jobs:
  build-and-tag:
    name: Build and Tag
    # Only run if validation succeeded and commit has RELEASE marker
    if: |
      github.event.workflow_run.conclusion == 'success' &&
      contains(github.event.workflow_run.head_commit.message, 'RELEASE:')
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 2

      - name: Set up Python
        uses: actions/setup-python@v6
        with:
          python-version: '3.10'

      - name: Install uv
        uses: astral-sh/setup-uv@v7

      - name: Install packaging
        run: pip install packaging

      - name: Get current version
        id: current
        run: |
          VERSION=$(grep -oP '__version__ = "\K[^"]+' src/msgspec_ext/version.py)
          echo "version=$VERSION" >> $GITHUB_OUTPUT
          echo "Current version: $VERSION"

      - name: Get previous version
        id: previous
        run: |
          PREV_VERSION=$(git show HEAD~1:src/msgspec_ext/version.py 2>/dev/null | grep -oP '__version__ = "\K[^"]+' || echo "0.0.0")
          echo "version=$PREV_VERSION" >> $GITHUB_OUTPUT
          echo "Previous version: $PREV_VERSION"

      - name: Validate version bump
        id: validate
        run: |
          python << EOF
          from packaging.version import parse as parse_version
          import sys

          current = "${{ steps.current.outputs.version }}"
          previous = "${{ steps.previous.outputs.version }}"

          print(f"Comparing: {previous} -> {current}")

          if parse_version(current) > parse_version(previous):
              print(f"✅ Version bumped from {previous} to {current}")
              sys.exit(0)
          elif parse_version(current) == parse_version(previous):
              print(f"⚠️ No version change detected")
              sys.exit(1)
          else:
              print(f"❌ Version downgrade detected: {previous} -> {current}")
              sys.exit(1)
          EOF

      - name: Install dependencies
        run: uv sync --locked

      - name: Build package
        run: uv build

      - name: Check package
        run: uv run twine check dist/*

      - name: Create and push tag
        run: |
          VERSION="v${{ steps.current.outputs.version }}"
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git tag -a "$VERSION" -m "Release ${{ steps.current.outputs.version }}"
          git push origin "$VERSION"
          echo "✅ Created and pushed tag: $VERSION"

      - name: Upload dist artifacts
        uses: actions/upload-artifact@v4
        with:
          name: python-package-distributions
          path: dist/

  publish:
    name: Publish to PyPI
    needs: build-and-tag
    runs-on: ubuntu-latest
    environment: pypi
    permissions:
      id-token: write

    steps:
      - name: Download dist artifacts
        uses: actions/download-artifact@v4
        with:
          name: python-package-distributions
          path: dist/

      - name: Publish to PyPI
        uses: pypa/gh-action-pypi-publish@release/v1

  create-release:
    name: Create GitHub Release
    needs: publish
    runs-on: ubuntu-latest
    permissions:
      contents: write

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Get version
        id: version
        run: |
          VERSION=$(grep -oP '__version__ = "\K[^"]+' src/msgspec_ext/version.py)
          echo "version=$VERSION" >> $GITHUB_OUTPUT

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: v${{ steps.version.outputs.version }}
          name: Release v${{ steps.version.outputs.version }}
          body: |
            ## Release v${{ steps.version.outputs.version }}

            See [CHANGELOG.md](https://github.com/msgflux/msgspec-ext/blob/main/CHANGELOG.md) for details.

            ### Installation

            ```bash
            pip install msgspec-ext==${{ steps.version.outputs.version }}
            ```

            Or with uv:

            ```bash
            uv add msgspec-ext==${{ steps.version.outputs.version }}
            ```
          draft: false
          prerelease: false