release.yml

name: Create Release and Publish

on:
  workflow_dispatch:

permissions:
  contents: write
  id-token: write

jobs:
  release:
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/master'
    environment: pypi
    outputs:
      version: ${{ steps.changelog.outputs.version }}
      released: ${{ steps.check_tag.outputs.exists == 'false' }}

    steps:
      - name: Checkout code
        uses: actions/checkout@v5

      - name: Extract version and notes from CHANGELOG
        id: changelog
        run: |
          # Extract version from first ## [x.x.x] header
          VERSION=$(grep -m1 -oP '## \[\K[0-9]+\.[0-9]+\.[0-9]+' CHANGELOG.md)
          echo "version=$VERSION" >> $GITHUB_OUTPUT

          # Extract release notes (content between first and second ## headers)
          NOTES=$(awk '/^## \['"$VERSION"'\]/{flag=1; next} /^## \[/{flag=0} flag' CHANGELOG.md)

          # Handle multiline output
          {
            echo "notes<<EOF"
            echo "$NOTES"
            echo "EOF"
          } >> $GITHUB_OUTPUT

      - name: Check if tag already exists
        id: check_tag
        run: |
          if git rev-parse "v${{ steps.changelog.outputs.version }}" >/dev/null 2>&1; then
            echo "exists=true" >> $GITHUB_OUTPUT
          else
            echo "exists=false" >> $GITHUB_OUTPUT
          fi

      - name: Create Release
        if: steps.check_tag.outputs.exists == 'false'
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ steps.changelog.outputs.version }}
          name: v${{ steps.changelog.outputs.version }}
          body: ${{ steps.changelog.outputs.notes }}
          draft: false
          prerelease: false

      - name: Skip release (tag exists)
        if: steps.check_tag.outputs.exists == 'true'
        run: |
          echo "⚠️ Tag v${{ steps.changelog.outputs.version }} already exists. Skipping release creation."
          exit 1

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.x"

      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install build

      - name: Build package
        run: python -m build

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