Method checkoutIndex

src/main/java/club/qqtim/command/ReadTree.java:108–120

index must only have one layer

(Map<String, String> index)

     *  index must only have one layer
     */
    public static void checkoutIndex(Map<String, String> index) {
        // clean current dir
        emptyCurrentDir();

        for (Map.Entry<String, String> pathObjectId : index.entrySet()) {
            String path = pathObjectId.getKey();
            String objectId = pathObjectId.getValue();
            FileUtil.createParentDirs(path);
            final byte[] objectBytes = ZitContext.getObject(objectId);
            FileUtil.createFile(objectBytes, path);
        }

    }


}