name: Cleanup Merged/Closed PR Branches on: schedule: - cron: '0 2 * * 0' # Every Sunday at 2 AM UTC workflow_dispatch: # Allow manual triggering inputs: dry_run: description: 'Dry run (show what would be deleted without actually deleting)' required: false default: 'false' type: boolean permissions: contents: write pull-requests: read jobs: cleanup-branches: runs-on: ubuntu-latest steps: - name: Checkout repository uses: actions/checkout@v4 with: fetch-depth: 0 # Need full history to see all branches token: ${{ secrets.PAT_TOKEN }} - name: Install GitHub CLI run: | curl -fsSL https://cli.github.com/packages/githubcli-archive-keyring.gpg | sudo dd of=/usr/share/keyrings/githubcli-archive-keyring.gpg \ && sudo chmod go+r /usr/share/keyrings/githubcli-archive-keyring.gpg \ && echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/githubcli-archive-keyring.gpg] https://cli.github.com/packages stable main" | sudo tee /etc/apt/sources.list.d/github-cli.list > /dev/null \ && sudo apt update \ && sudo apt install gh -y - name: Configure git run: | git config --global user.email "action@github.com" git config --global user.name "GitHub Action" - name: Cleanup merged/closed PR branches env: GH_TOKEN: ${{ secrets.PAT_TOKEN }} run: | echo "Starting branch cleanup process..." # Check if this is a dry run DRY_RUN="${{ github.event.inputs.dry_run || 'false' }}" if [ "$DRY_RUN" = "true" ]; then echo "🔍 DRY RUN MODE - No branches will actually be deleted" echo "" fi # Define protected branches and patterns protected_branches=( "master" "main" ) # Translation branch patterns (any 2-letter combination) translation_pattern="^[a-zA-Z]{2}$" # Get all remote branches except protected ones echo "Fetching all remote branches..." git fetch --all --prune # Get list of all remote branches (excluding HEAD) all_branches=$(git branch -r | grep -v 'HEAD' | sed 's/origin\///' | grep -v '^$') # Get all open PRs to identify branches with open PRs echo "Getting list of open PRs..." open_pr_branches=$(gh pr list --state open --json headRefName --jq '.[].headRefName' | sort | uniq) echo "Open PR branches:" echo "$open_pr_branches" echo "" deleted_count=0 skipped_count=0 for branch in $all_branches; do branch=$(echo "$branch" | xargs) # Trim whitespace # Skip if empty if [ -z "$branch" ]; then continue fi echo "Checking branch: $branch" # Check if it's a protected branch is_protected=false for protected in "${protected_branches[@]}"; do if [ "$branch" = "$protected" ]; then echo " ✓ Skipping protected branch: $branch" is_protected=true skipped_count=$((skipped_count + 1)) break fi done if [ "$is_protected" = true ]; then continue fi # Check if it's a translation branch (any 2-letter combination) # Also protect any branch that starts with 2 letters followed by additional content if echo "$branch" | grep -Eq "$translation_pattern" || echo "$branch" | grep -Eq "^[a-zA-Z]{2}[_-]"; then echo " ✓ Skipping translation/language branch: $branch" skipped_count=$((skipped_count + 1)) continue fi # Check if branch has an open PR if echo "$open_pr_branches" | grep -Fxq "$branch"; then echo " ✓ Skipping branch with open PR: $branch" skipped_count=$((skipped_count + 1)) continue fi # Check if branch had a PR that was merged or closed echo " → Checking PR history for branch: $branch" # Look for PRs from this branch (both merged and closed) pr_info=$(gh pr list --state all --head "$branch" --json number,state,mergedAt --limit 1) if [ "$pr_info" != "[]" ]; then pr_state=$(echo "$pr_info" | jq -r '.[0].state') pr_number=$(echo "$pr_info" | jq -r '.[0].number') merged_at=$(echo "$pr_info" | jq -r '.[0].mergedAt') if [ "$pr_state" = "MERGED" ] || [ "$pr_state" = "CLOSED" ]; then if [ "$DRY_RUN" = "true" ]; then echo " 🔍 [DRY RUN] Would delete branch: $branch (PR #$pr_number was $pr_state)" deleted_count=$((deleted_count + 1)) else echo " ✗ Deleting branch: $branch (PR #$pr_number was $pr_state)" # Delete the remote branch if git push origin --delete "$branch" 2>/dev/null; then echo " Successfully deleted remote branch: $branch" deleted_count=$((deleted_count + 1)) else echo " Failed to delete remote branch: $branch" fi fi else echo " ✓ Skipping branch with open PR: $branch (PR #$pr_number is $pr_state)" skipped_count=$((skipped_count + 1)) fi else # No PR found for this branch - it might be a stale branch # Check if branch is older than 30 days and has no recent activity last_commit_date=$(git log -1 --format="%ct" origin/"$branch" 2>/dev/null || echo "0") if [ "$last_commit_date" != "0" ] && [ -n "$last_commit_date" ]; then # Calculate 30 days ago in seconds since epoch thirty_days_ago=$(($(date +%s) - 30 * 24 * 60 * 60)) if [ "$last_commit_date" -lt "$thirty_days_ago" ]; then if [ "$DRY_RUN" = "true" ]; then echo " 🔍 [DRY RUN] Would delete stale branch (no PR, >30 days old): $branch" deleted_count=$((deleted_count + 1)) else echo " ✗ Deleting stale branch (no PR, >30 days old): $branch" if git push origin --delete "$branch" 2>/dev/null; then echo " Successfully deleted stale branch: $branch" deleted_count=$((deleted_count + 1)) else echo " Failed to delete stale branch: $branch" fi fi else echo " ✓ Skipping recent branch (no PR, <30 days old): $branch" skipped_count=$((skipped_count + 1)) fi else echo " ✓ Skipping branch (cannot determine age): $branch" skipped_count=$((skipped_count + 1)) fi fi echo "" done echo "==================================" echo "Branch cleanup completed!" if [ "$DRY_RUN" = "true" ]; then echo "Branches that would be deleted: $deleted_count" else echo "Branches deleted: $deleted_count" fi echo "Branches skipped: $skipped_count" echo "==================================" # Clean up local tracking branches (only if not dry run) if [ "$DRY_RUN" != "true" ]; then echo "Cleaning up local tracking branches..." git remote prune origin fi echo "Cleanup process finished."