Function getCollectionPrefix

scripts/dbUtils.ts:76–80

(filepath: string)

 * @returns The prefix string (e.g., '2014-') or an empty string.
 */
export function getCollectionPrefix(filepath: string): string {
  const parts = filepath.split('/');
  const yearIdx = parts.findIndex((p) => YEAR_DIR_PATTERN.test(p));
  return yearIdx >= 0 ? parts[yearIdx] + '-' : '';
}

/**
 * Extracts the BCP 47 locale code from a locale-nested filepath.