a simple PR workflow that checks if I forgot remove .only in any file

check-only.yaml

name: PR checks
on:
  pull_request:
    branches: [main]

jobs:
  check-only:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Check for .only in changed JavaScript and TypeScript files
        run: |
          changed_files=$(git diff --name-only origin/main)
          for file in $changed_files
          do
            if [[ $file == *.js || $file == *.jsx || $file == *.ts || $file == *.tsx ]]
            then
              if grep -q ".only(" $file
              then
                echo "File $file contains .only("
                exit 1
              fi
            fi
          done