config_manager.py 文件源码

def touch(fname, mode=0o666, dir_fd=None, **kwargs):
    """
    Implementation of coreutils touch
    http://stackoverflow.com/a/1160227
    """
    flags = os.O_CREAT | os.O_APPEND
    with os.fdopen(os.open(fname, flags=flags, mode=mode, dir_fd=dir_fd)) as f:
        os.utime(f.fileno() if os.utime in os.supports_fd else fname,
            dir_fd=None if os.supports_fd else dir_fd, **kwargs)