name: Root entry limit

on:
  pull_request: {}
  push:
    branches: [main]

permissions:
  contents: read

jobs:
  root-entry-limit:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955
        with:
          persist-credentials: false
      - name: Check root entry count
        env:
          MAX_ROOT_ENTRIES: 15
        run: |
          count=$(find . -mindepth 1 -maxdepth 1 -printf '.\n' | wc -l)
          echo "Root has $count entries. Maximum is $MAX_ROOT_ENTRIES."
          if [ "$count" -gt "$MAX_ROOT_ENTRIES" ]; then
            echo "::error::Repository root exceeds $MAX_ROOT_ENTRIES entries. Move new files into an existing directory."
            exit 1
          fi