check-lowercase.yml

name: Check Lowercase Filenames

on:
  pull_request:
    paths:
      - 'ct/**'
      - 'install/**'

jobs:
  check_lowercase:
    runs-on: lxc

    steps:
      # Step 1: Checkout the code
      - name: Checkout code
        uses: actions/checkout@v4

      # Step 2: Validate filenames are lowercase
      - name: Validate filenames are lowercase
        run: |
          # Get the list of changed files
          changed_files=$(git diff --name-only origin/${{ github.base_ref }}...HEAD | grep -E '^(ct|install)/')

          ERROR_COUNT=0

          # Process each file safely using newline as delimiter
          echo "$changed_files" | while IFS= read -r FILE; do
              BASENAME=$(basename "$FILE")
              if [[ "$BASENAME" =~ ^[a-z0-9._-]+$ ]]; then
                  echo "$FILE: Check for lowercase in filename passed."
              else
                  echo "Error in $FILE. Change filename to lowercase."
                  ERROR_COUNT=$((ERROR_COUNT + 1))
              fi
          done

          # Fail the workflow if any errors are found
          if [ "$ERROR_COUNT" -ne 0 ]; then
              echo "$ERROR_COUNT script(s) have invalid filenames."
              exit 1
          else
              echo "All filenames passed the lowercase check."
          fi