From mboxrd@z Thu Jan  1 00:00:00 1970
From: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Subject: Re: git with custom diff for commits
Date: Mon, 17 Dec 2007 23:01:37 +0000 (GMT)
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To: Gerald Gutierrez <ggmlfs@gmail.com>
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Hi,

On Mon, 17 Dec 2007, Gerald Gutierrez wrote:

> I do a nightly mysqldump of a database and check it into a git 
> repository. mysqldump generates a timestamp as part of that output which 
> is causing git to think that the file changes every night when it really 
> doesn't. The timestamp is simply in an SQL comment.
> 
> So what I'd like to do is teach git to ignore that particular SQL 
> timestamp comment. I've tried to set up an external diff script that 
> runs diff -I "<<sql timestamp comment>>" that effectively ignores the 
> timestamp. While this works with "git diff", it seems when git commits, 
> it still sees the differences.
> 
> How do I properly teach git to ignore these types of differences?

You might be interested in reading Documentation/gitattributes.txt, look 
for "diff driver".

Hth,
Dscho