From mboxrd@z Thu Jan  1 00:00:00 1970
From: Bryan Donlan <bdonlan@gmail.com>
Subject: Re: What's going on here? Bad repo, no error locally?
Date: Wed, 22 Apr 2009 00:21:20 -0400
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To: John Dlugosz <JDlugosz@tradestation.com>
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On Tue, Apr 21, 2009 at 8:18 PM, John Dlugosz <JDlugosz@tradestation.co=
m> wrote:
> Developer B runs git fsck --full, gets no errors but one dangling blo=
b.
> Does a push. =A0No errors.
> Now, on the upstream repo, I run fsck, and find a bunch of danglings =
(as
> always) and a missing blob.
> Any fetch from that repo will fail, due to that missing blob.
>
> What's going on? =A0How can I fix his local repository, other than bl=
ow it
> away and start over, and copy his current files over and rebuild the =
few
> commits of interest?

Extract the object on developer B's workstation:
git cat-file blob <object ID>  > blob.dat

Copy it to upstream, then do:
git hash-object -w blob.dat

If all goes well, hash-object will give you back the blob's ID, and
the repository will fsck cleanly again.