Function copyDirMerge

apps/desktop/main/utils/pathUtils.ts:134–179

(
  src: string,
  dest: string,
  ensureDir: (dirPath: string) => void,
  stats: CopyStats = { copied: 0, skipped: 0, errors: [] }
)

 * @returns 复制结果统计
 */
export function copyDirMerge(
  src: string,
  dest: string,
  ensureDir: (dirPath: string) => void,
  stats: CopyStats = { copied: 0, skipped: 0, errors: [] }
): CopyStats {
  if (!fs.existsSync(src)) return stats

  try {
    ensureDir(dest)
    const entries = fs.readdirSync(src, { withFileTypes: true })

    for (const entry of entries) {
      const srcPath = path.join(src, entry.name)
      const destPath = path.join(dest, entry.name)

      try {
        if (entry.isDirectory()) {
          if (!fs.existsSync(destPath)) {
            copyDirRecursive(srcPath, destPath, ensureDir)
            stats.copied++
          } else {
            copyDirMerge(srcPath, destPath, ensureDir, stats)
          }
        } else {
          if (!fs.existsSync(destPath)) {
            fs.copyFileSync(srcPath, destPath)
            stats.copied++
          } else {
            stats.skipped++
          }
        }
      } catch (error) {
        const errorMsg = `复制失败: ${srcPath} -> ${error instanceof Error ? error.message : String(error)}`
        console.error('[Paths]', errorMsg)
        stats.errors.push(errorMsg)
      }
    }
  } catch (error) {
    const errorMsg = `读取目录失败: ${src} -> ${error instanceof Error ? error.message : String(error)}`
    console.error('[Paths]', errorMsg)
    stats.errors.push(errorMsg)
  }

  return stats
}

/**
 * 写入迁移日志到 app.log