helpers.py 文件源码

def exec_iter(
    command: typing.List[str],
    logger: typing.Optional[iocage.lib.Logger.Logger]=None
) -> typing.Generator[str, None, None]:

    process = exec_raw(
        command,
        logger=logger,
        stdout=subprocess.PIPE,
        stderr=subprocess.STDOUT,
        universal_newlines=True
    )

    for stdout_line in iter(process.stdout.readline, ""):
        yield stdout_line

    process.stdout.close()

    return_code = process.wait()
    if return_code:
        raise subprocess.CalledProcessError(return_code, command)