objects_server.py 文件源码

def symlink_objects_path_to_latest(objects_path):
    """Symlinks 'latest' to the given directory.

    Args:
        objects_path: Path to objects directory.
    """
    objects_root = os.path.dirname(objects_path)
    path_to_symlink = os.path.join(objects_root, "latest")

    try:
        os.symlink(objects_path, path_to_symlink)
    except OSError as e:
        # Replace the old symlink if an old symlink with the same
        # name exists.
        if e.errno == errno.EEXIST:
            os.remove(path_to_symlink)
            os.symlink(objects_path, path_to_symlink)
        else:
            rospy.logerr(
                "Could not create symlink to the latest objects directory")