🧹 Cleanup Lint Branches #8
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| name: "🧹 Cleanup Lint Branches" | |
| # This workflow automatically cleans up lint/* branches that have been merged or closed. | |
| # It helps maintain a clean repository by removing branches created by the linter workflow | |
| # after their associated pull requests are no longer active. | |
| on: | |
| # Run daily at 00:00 UTC | |
| schedule: | |
| - cron: '0 0 * * *' | |
| # Allow manual triggering with optional dry-run mode | |
| workflow_dispatch: | |
| inputs: | |
| dry_run: | |
| description: 'Dry run mode (preview deletions without actually deleting)' | |
| required: false | |
| type: boolean | |
| default: true | |
| permissions: | |
| contents: write | |
| pull-requests: read | |
| jobs: | |
| cleanup: | |
| name: Clean up merged/closed lint branches | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: Checkout repository | |
| uses: actions/checkout@v4 | |
| with: | |
| fetch-depth: 0 # Fetch all branches and history | |
| token: ${{ secrets.GITHUB_TOKEN }} | |
| - name: Setup GitHub CLI | |
| run: | | |
| # Verify gh CLI is available (pre-installed on ubuntu-latest) | |
| gh --version | |
| env: | |
| GH_TOKEN: ${{ secrets.GITHUB_TOKEN }} | |
| - name: Cleanup lint branches | |
| env: | |
| GH_TOKEN: ${{ secrets.GITHUB_TOKEN }} | |
| # Default to true (dry-run mode) unless explicitly set to false | |
| # This ensures safe operation for both scheduled and manual triggers | |
| DRY_RUN: ${{ github.event.inputs.dry_run == 'false' && 'false' || 'true' }} | |
| BRANCH_AGE_DAYS: 7 | |
| run: | | |
| set -e | |
| set -o pipefail | |
| echo "🧹 Starting lint branch cleanup..." | |
| echo "Dry run mode: $DRY_RUN" | |
| echo "Branch age threshold for orphaned branches: $BRANCH_AGE_DAYS days" | |
| echo "" | |
| # Get current date in seconds since epoch | |
| current_date=$(date +%s) | |
| age_threshold_seconds=$((BRANCH_AGE_DAYS * 86400)) | |
| # Track statistics | |
| total_branches=0 | |
| deleted_branches=0 | |
| skipped_branches=0 | |
| error_branches=0 | |
| # Get all remote branches matching the pattern lint/style-fixes-* | |
| echo "📋 Fetching lint branches..." | |
| lint_branches=$(git for-each-ref --format='%(refname:short)' 'refs/remotes/origin/lint/style-fixes-*' | sed 's|^origin/||' || echo "") | |
| if [ -z "$lint_branches" ]; then | |
| echo "✅ No lint branches found matching 'lint/style-fixes-*'" | |
| exit 0 | |
| fi | |
| echo "Found $(echo "$lint_branches" | wc -l) lint branches" | |
| echo "" | |
| # Process each branch (using while read to handle special characters safely) | |
| while IFS= read -r branch; do | |
| [ -z "$branch" ] && continue | |
| total_branches=$((total_branches + 1)) | |
| echo "🔍 Processing: $branch" | |
| # Validate branch name matches expected pattern | |
| if [[ ! "$branch" =~ ^lint/style-fixes-[0-9]+$ ]]; then | |
| echo " ⚠️ Warning: Branch name doesn't match expected pattern, skipping" | |
| skipped_branches=$((skipped_branches + 1)) | |
| echo "" | |
| continue | |
| fi | |
| # Check if there's a PR for this branch | |
| pr_number=$(gh pr list --state all --head "$branch" --json number --jq '.[0].number // empty' 2>/dev/null || echo "") | |
| should_delete=false | |
| delete_reason="" | |
| if [ -n "$pr_number" ]; then | |
| # PR exists, check its state | |
| echo " Found PR #$pr_number" | |
| pr_state=$(gh pr view "$pr_number" --json state --jq '.state' 2>/dev/null || echo "") | |
| pr_merged=$(gh pr view "$pr_number" --json merged --jq '.merged' 2>/dev/null || echo "false") | |
| if [ "$pr_merged" = "true" ]; then | |
| should_delete=true | |
| delete_reason="PR #$pr_number was merged" | |
| elif [ "$pr_state" = "CLOSED" ]; then | |
| should_delete=true | |
| delete_reason="PR #$pr_number was closed" | |
| else | |
| echo " ⏭️ Skipping: PR #$pr_number is still open" | |
| skipped_branches=$((skipped_branches + 1)) | |
| fi | |
| else | |
| # No PR found - check if branch is old enough to delete | |
| echo " No associated PR found (orphaned branch)" | |
| # Get the last commit date on this branch | |
| last_commit_date=$(git log -1 --format=%ct "origin/$branch" 2>/dev/null || echo "0") | |
| if [ "$last_commit_date" != "0" ]; then | |
| branch_age_seconds=$((current_date - last_commit_date)) | |
| branch_age_days=$((branch_age_seconds / 86400)) | |
| echo " Branch age: $branch_age_days days" | |
| if [ $branch_age_seconds -gt $age_threshold_seconds ]; then | |
| should_delete=true | |
| delete_reason="Orphaned branch older than $BRANCH_AGE_DAYS days (age: $branch_age_days days)" | |
| else | |
| echo " ⏭️ Skipping: Orphaned branch is only $branch_age_days days old (threshold: $BRANCH_AGE_DAYS days)" | |
| skipped_branches=$((skipped_branches + 1)) | |
| fi | |
| else | |
| echo " ⚠️ Warning: Could not determine branch age" | |
| skipped_branches=$((skipped_branches + 1)) | |
| fi | |
| fi | |
| # Delete the branch if appropriate | |
| if [ "$should_delete" = "true" ]; then | |
| if [ "$DRY_RUN" = "true" ]; then | |
| echo " 🔍 [DRY RUN] Would delete: $delete_reason" | |
| deleted_branches=$((deleted_branches + 1)) | |
| else | |
| echo " 🗑️ Deleting: $delete_reason" | |
| # Use git push for safer deletion with validated branch name | |
| delete_error=$(git push origin --delete "$branch" 2>&1) | |
| exit_code=$? | |
| if [ $exit_code -eq 0 ]; then | |
| echo " ✅ Successfully deleted" | |
| deleted_branches=$((deleted_branches + 1)) | |
| else | |
| echo " ❌ Failed to delete branch: $delete_error" | |
| error_branches=$((error_branches + 1)) | |
| fi | |
| fi | |
| fi | |
| echo "" | |
| done <<< "$lint_branches" | |
| # Print summary | |
| echo "📊 Cleanup Summary" | |
| echo "==================" | |
| echo "Total lint branches processed: $total_branches" | |
| if [ "$DRY_RUN" = "true" ]; then | |
| echo "Branches that would be deleted: $deleted_branches" | |
| else | |
| echo "Branches deleted: $deleted_branches" | |
| fi | |
| echo "Branches skipped: $skipped_branches" | |
| if [ $error_branches -gt 0 ]; then | |
| echo "Branches with errors: $error_branches" | |
| fi | |
| echo "" | |
| if [ "$DRY_RUN" = "true" ]; then | |
| echo "✅ Dry run completed - no branches were actually deleted" | |
| else | |
| echo "✅ Cleanup completed" | |
| fi |