On Thu, 5 Sep 2013, Duy Nguyen wrote:

> On Thu, Sep 5, 2013 at 11:40 AM, Nicolas Pitre <n...@fluxnic.net> wrote:
> > On Thu, 5 Sep 2013, Duy Nguyen wrote:
> >
> >> On Thu, Sep 5, 2013 at 11:12 AM, Nicolas Pitre <n...@fluxnic.net> wrote:
> >> > Many other bugs have now been fixed.  A git.git repository with packs
> >> > version 4 appears to be functional and passes git-fsck --full --strict.
> >>
> >> Yeah I was looking at the diff some minutes ago, saw changes in
> >> pack-check.c and wondering if fsck was working. I'll add v4 support to
> >> index-pack.
> >
> > Beware that the tree delta encoding has changed a little.  This saved up
> > to 2% on some repos.
> Thanks for the heads up.
> > I'll probably change the encoding to incorporate the escape hatch
> > for path and name references as discussed previously.

this is now committed.  I don't think there should be any more pack 
format changes at this point.

Now the pack index v3 probably needs to be improved a little, again to 
accommodate completion of thin packs.  Given that the main SHA1 table is 
now in the main pack file, it should be possible to still carry a small 
SHA1 table in the index file that corresponds to the appended objects 
only. This means that a SHA1 search will have to first use the main SHA1 
table in the pack file as it is done now, and if not found then use the 
SHA1 table in the index file if it exists.  And of course 
nth_packed_object_sha1() will have to be adjusted accordingly.

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