Function tail_file

tests/ce/deploy/deploy.py:484–489

(path, lines=50)

            if elapsed >= timeout:

                def tail_file(path, lines=50):
                    try:
                        with open(path, "r", encoding="utf-8", errors="ignore") as f:
                            return "".join(f.readlines()[-lines:])
                    except Exception as e:
                        return f"[无法读取 {path}]: {e}, {str(traceback.format_exc())}\n"

                result = f"服务启动超时，耗时：[{timeout}s]\n\n"
                result += "==== server.log tail 50 ====\n"