Native XZ file format support

[krolaw]

I see a number of XZ Golang libraries that rely on CGO, but nothing that is Go native.

I note that XZ leverages LZMA2, which is a container for multiple runs of the LZMA compression format.  It just so happens that Andrei Vieru has written a Go native port of LZMA: http://godoc.org/code.google.com/p/lzma

So, before I attempt sometime in the future (not that I really have time) to write headers for XZ and LZMA2, is there anyone else already working on it, or intending to beat me to it?

Cheers.

[Yunge]

It would be useful, lzma is the best compression algorithm for db.