compressed weaves, and revision.weave

[Martin Pool]

On 25/10/05, John Arbash Meinel <john at arbash-meinel.com> wrote:

I think compressing the storage is a good idea, but I'd like to switch
to an append-only indexed weave-like format at some time in the
future.  I have the start of some code for that here.

  http://people.ubuntu.com/~mbp/bzr.mbp.knit/

There is some tension between such a format and compression; I suppose
we could just compress each appended record of the file independently.
 The ratio might not be as good but it would eliminate some text
redundancy, and I suppose we can rely on the delta compression to get
some more.

I think I'd like compression to be optional; for local access the CPU
cost may be more than people wish to pay.

It might make sense to do compressed weaves as an intermediate step.

Storing the revisions and signatures in there is also a good idea.

--
Martin