From: Clemens Buchacher <drizzd@aon.at>
Date: Mon, 25 Jul 2011 22:44:08 GMT
Subject: Re: Is there a quick way to identify commits that reference missing trees or blobs?
Message-ID: <20110725224408.GA26057@toss.lan>
In-Reply-To: <20110725223449.GA25560@toss.lan>

On Tue, Jul 26, 2011 at 12:34:50AM +0200, Clemens Buchacher wrote:
> On Sun, Jul 24, 2011 at 02:48:20AM +1000, Jon Seymour wrote:
> >
> > I was wondering if there is a quick way to identify commits that
> > reference missing trees or blobs as identified by git fsck?
> 
> The following command has served me well for this purpose. I apply
> it to each ref in git-for-each-ref:
> 
> $ git rev-list --objects $ref | git cat-file --batch-check

Oh, and here is the output you get for different situations. Exit
status is always 0 unfortunately.

 - missing blob

fatal: missing blob object '78981922613b2afb6025042ff6bd878ac1994e85'
d165426eba5cb4c125bd6e100d1b5de7298eb601 commit 168
848740929e99bda0e1a9783e7daa314c5a9732d5  missing

 - missing tree

error: Could not read 84bf061d017459b4be45a49b8d8dc945e7a7fdf5
fatal: bad tree object 84bf061d017459b4be45a49b8d8dc945e7a7fdf5
abce3ad54002628ab74d72b7e2baa687abcb77f9 commit 168

 - missing parent commit

error: Could not read 3aa66f30aa9799ac38a53b551ac4faca9cbd400b
fatal: Failed to traverse parents of commit 3cfb98a3cbd3f42852e20bd011c7b835b8750df7

Clemens