An archiver which archives a folder with the Snappy compression, and calculate 128bit hash from the metadata of the files.

Reading actual files doesn't need to calculate the hash. The hash algorithm is MetroHash.

It is one of the components of the Dochy File System.

Currently, This lib is not supposed to be used for general purpose, but it seems like some people downloading it.

I feel guilty, so I'll update it for general purpose.