Function deleteOldUserDataDirIfSafe

packages/node-runtime/src/data-dir-switch.ts:284–297

(
  dirPath: string,
  currentDir: string,
  removeDir?: (dir: string) => void
)

// 只删除确认仍是 ChatLab 用户数据目录的旧路径，避免误删用户选择的普通目录。
export function deleteOldUserDataDirIfSafe(
  dirPath: string,
  currentDir: string,
  removeDir?: (dir: string) => void
): boolean {
  if (path.resolve(dirPath) === path.resolve(currentDir)) return false
  if (!isPathSafe(dirPath)) return false
  if (!fs.existsSync(dirPath)) return false
  if (!isExistingUserDataDir(dirPath)) return false

  const remove = removeDir ?? ((dir: string) => fs.rmSync(dir, { recursive: true, force: true }))
  remove(dirPath)
  return true
}

function writePendingNodeDataDirMigration(systemDir: string, pending: PendingDataDirMigration): void {
  const filePath = getPendingMigrationPath(systemDir)