Function findEntryFileInDirectory

packages/parser/src/index.ts:262–288

(dirPath: string, maxDepth = 1)

 * @returns path to the entry file, or null if none found
 */
export function findEntryFileInDirectory(dirPath: string, maxDepth = 1): string | null {
  function walk(current: string, depth: number): string | null {
    if (depth > maxDepth) return null
    let entries: fs.Dirent[]
    try {
      entries = fs.readdirSync(current, { withFileTypes: true })
    } catch {
      return null
    }
    for (const entry of entries) {
      const full = path.join(current, entry.name)
      if (entry.isFile() && entry.name.endsWith('.json')) {
        const format = detectFormat(full)
        if (format) return full
      }
    }
    for (const entry of entries) {
      if (entry.isDirectory()) {
        const found = walk(path.join(current, entry.name), depth + 1)
        if (found) return found
      }
    }
    return null
  }

  return walk(dirPath, 0)
}

// ==================== 导出类型 ====================