release-finalize.yml

# Triggers when release-please PR is merged to release/candidate.
# Creates the final release/v{version} branch and deletes the candidate branch.
name: "Release: Finalize"

on:
  pull_request:
    types: [closed]
    branches:
      - release/candidate

permissions:
  contents: write

jobs:
  finalize:
    if: github.event.pull_request.merged == true
    runs-on: ubuntu-latest
    steps:
      - name: Check for release-please PR
        id: check
        env:
          LABELS: ${{ toJson(github.event.pull_request.labels.*.name) }}
        run: |
          if echo "$LABELS" | grep -q "autorelease: pending"; then
            echo "is_release_pr=true" >> $GITHUB_OUTPUT
          else
            echo "Not a release-please PR, skipping"
            echo "is_release_pr=false" >> $GITHUB_OUTPUT
          fi

      - uses: actions/checkout@v4
        if: steps.check.outputs.is_release_pr == 'true'
        with:
          ref: release/candidate

      - name: Extract version from manifest
        if: steps.check.outputs.is_release_pr == 'true'
        id: version
        run: |
          VERSION=$(jq -r '.["."]' .github/.release-please-manifest.json)
          echo "version=$VERSION" >> $GITHUB_OUTPUT
          echo "Extracted version: $VERSION"

      - name: Create release branch
        if: steps.check.outputs.is_release_pr == 'true'
        run: |
          git checkout -b "release/v${{ steps.version.outputs.version }}"
          git push origin "release/v${{ steps.version.outputs.version }}"
          echo "Created branch: release/v${{ steps.version.outputs.version }}"

      - name: Delete release/candidate branch
        if: steps.check.outputs.is_release_pr == 'true'
        run: |
          git push origin --delete release/candidate
          echo "Deleted branch: release/candidate"