Re: git branch performance problem?

From: Han-Wen Nienhuys <hanwenn@gmail.com>
Date: Oct 10, 2007, 21:30 UTC
Message-ID: <f329bf540710101430i63926b25q7d55976af96b891d@mail.gmail.com>
In-Reply-To: <f329bf540710101424q22309489sada99907e94b2cd0@mail.gmail.com>

2007/10/10, Han-Wen Nienhuys <hanwenn@gmail.com>:

Show 5 quoted lines

> More to the point, I seemed to have lost my entire repository. This is
> the type of surprise  I don't enjoy.
>
> Now, can someone explain why 'git branch' takes forever if there are
> only two non-remote branches ?

So,

Here is a question: I would like to share commitishes between two checkouts of a repository. The reason for this is that I want to easily cherry pick back and forth between the two. The files of in one of them should be continually available, since I am running out of that directory.

The way I solved that, was to have both repositories pointing to each other, using alternates.

Now, after a couple of gc and pack-refs iterations, I am greeted by

hanwen@lilypond:~/vc/git6$ git fsck
missing tree 12b00ec3190f7b46a5fe0a3235445bead4c9645b
broken link from    tree 1718d09e0394d113c162e4a3471e7a1f20914a94
              to    blob 635e2802568b85017007698c0e6dd4d28dca496f
broken link from    tree 926899798fce75038e24f8fa1838f6da8bcf105f
              to    tree f1b852d270ebbaaf95d8ddc06c52763bad11ff25
missing blob 99f0c0d63276fce444e3a200167b636236784c52
missing tree f1b852d270ebbaaf95d8ddc06c52763bad11ff25
missing blob 236962a87fafae8ca2dce2dc550d344aa7a8884a
missing blob 7d69ca297f392a954c4cdcb62bb4c8a90ddb862b
missing blob 9e39be8f5cb4eeff97fcfd6eb77fefeda02f0e71
dangling blob f3a93f023080ce9fc6becb397e366cc4ceb192f5

could it be that GC does not handle cyclic alternates correctly?

-- 
Han-Wen Nienhuys - hanwen@xs4all.nl - http://www.xs4all.nl/~hanwen