pack format future changes

Robert Collins robertc at robertcollins.net
Tue Oct 30 20:35:41 GMT 2007


There are a number of other changes we've discussed doing to our
repository format. I'd like to put a vague roadmap for that together.

I propose a new edition each release. And that we should try to add the
following things in each:

packs2:
 - optional annotation cache
 - remove list-dir usage (we need some discussion on race conditions
here).
 - drop inventory parents data from the .iix

packs3:
 - new inventory format
 - arbitrary-parent delta's.
 - 'pack' recompresses with better ordering to increase compression. 
   E.g. newest-as-basis.
packs4:
 - new delta-compression
 - make indices entirely regeneratable

-Rob

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