label-sync.yml

name: Label PRs

on:
  pull_request:
    types: [opened, synchronize]

permissions:
  contents: read
  pull-requests: write

jobs:
  label:
    name: Auto-label by path
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Get changed files
        id: changed
        run: |
          FILES=$(gh pr diff ${{ github.event.pull_request.number }} --name-only)
          echo "files<<EOF" >> "$GITHUB_OUTPUT"
          echo "$FILES" >> "$GITHUB_OUTPUT"
          echo "EOF" >> "$GITHUB_OUTPUT"
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Apply labels
        run: |
          LABELS=""

          if echo "$FILES" | grep -q "^skills/"; then
            LABELS="$LABELS,skills"
          fi

          if echo "$FILES" | grep -q "^rules/"; then
            LABELS="$LABELS,rules"
          fi

          if echo "$FILES" | grep -q "^mcp-server/"; then
            LABELS="$LABELS,mcp-server"
          fi

          if echo "$FILES" | grep -q "^docs/"; then
            LABELS="$LABELS,documentation"
          fi

          if echo "$FILES" | grep -q "^\.github/"; then
            LABELS="$LABELS,ci"
          fi

          LABELS="${LABELS#,}"

          if [ -n "$LABELS" ]; then
            gh pr edit ${{ github.event.pull_request.number }} --add-label "$LABELS"
          fi
        env:
          FILES: ${{ steps.changed.outputs.files }}
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}