branch-cleanup.yml

name: Clean Release Branches

on:
  pull_request_target:
    types: [closed]
    branches:
      - main

permissions:
  contents: write
  pull-requests: write
  issues: write

jobs:
  clean-release-branches:
    runs-on: ubuntu-latest
    # Only run if the PR is from backend-release, frontend-release, or satellite-release branches
    if: github.event.pull_request.head.ref == 'backend-release' || github.event.pull_request.head.ref == 'frontend-release' || github.event.pull_request.head.ref == 'satellite-release'
    steps:
      - name: Delete release branch
        uses: actions/github-script@v8
        with:
          github-token: ${{ secrets.APP_INSTALLATION_TOKEN }}
          script: |
            const branchName = context.payload.pull_request.head.ref;
            const owner = context.repo.owner;
            const repo = context.repo.repo;
            
            console.log(`Attempting to delete branch: ${branchName}`);
            
            try {
              // Delete the branch
              await github.rest.git.deleteRef({
                owner: owner,
                repo: repo,
                ref: `heads/${branchName}`
              });
              
              console.log(`Successfully deleted branch: ${branchName}`);
              
              // Add a comment to the PR about the branch deletion
              const status = context.payload.pull_request.merged ? 'merged' : 'closed';
              const emoji = context.payload.pull_request.merged ? '✅' : '❌';
              
              await github.rest.issues.createComment({
                issue_number: context.payload.pull_request.number,
                owner: owner,
                repo: repo,
                body: `## Release Branch Cleanup ${emoji}\n\nBranch \`${branchName}\` has been automatically deleted after PR was ${status}.`
              });
              
            } catch (error) {
              console.error(`Error deleting branch ${branchName}:`, error);
              
              // Add a comment about the failure
              await github.rest.issues.createComment({
                issue_number: context.payload.pull_request.number,
                owner: owner,
                repo: repo,
                body: `## Release Branch Cleanup Failed ⚠️\n\nFailed to automatically delete branch \`${branchName}\`. Manual cleanup may be required.\n\nError: ${error.message}`
              });
            }