From: Jeff King <peff@peff.net>
Date: Tue, 30 Jun 2009 04:03:37 GMT
Subject: Re: RFH - git-log variant that _does_ search through diffs
Message-ID: <20090630040337.GA23741@sigio.peff.net>
In-Reply-To: <279b37b20906291708g67da3a75p316ea4893f02666a@mail.gmail.com>

On Mon, Jun 29, 2009 at 05:08:47PM -0700, Eric Raible wrote:

> [Surely this has been address before,  but I wasn't able to find it...]

There is some discussion here:

  http://article.gmane.org/gmane.comp.version-control.git/112077

> The documentation for git-log -S includes:
> 
> "Look for differences that introduce or remove an instance of <string>.
>  Note that this is different than the string simply appearing in diff output"
> 
> But I want to do that "different" thing (IOW I want search the diff output).
> 
> So must I loop through git-rev-list, grepping git-diff output on each commit?

Currently, yes. There is no way to do it internally. A patch to
implement it would probably be accepted, though (see the thread I
mentioned above for more details).

You can at least combine rev-list and diff into one command, and grep
like this (for 'foo'):

  git log -z -p | perl -0ne 'print if /^[-+].*foo/m' | tr '\0' '\n'

-Peff