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From: James Bottomley <James.Bottomley@HansenPartnership.com>
To: Steven Rostedt <rostedt@goodmis.org>
Date: Wed, 22 Jul 2015 08:41:05 -0700
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Cc: Dan Carpenter <dan.carpenter@oracle.com>,
	ksummit-discuss@lists.linuxfoundation.org,
	Jason Cooper <jason@lakedaemon.net>
Subject: Re: [Ksummit-discuss] [CORE TOPIC] Recruitment (Reviewers, Testers,
 Maintainers, Hobbyists)
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On Wed, 2015-07-22 at 10:48 -0400, Steven Rostedt wrote:
> On Wed, 22 Jul 2015 07:42:01 -0700
> James Bottomley <James.Bottomley@HansenPartnership.com> wrote:
> 
> > I think what we need is a git log --line <name> <path> which would track
> > the commits that touched a given line in <path> (hopefully even across
> > renames).  It shouldn't be too hard to come up with that.
> 
> That may not be trivial. It would have to keep track of changes before
> the line, to match the line in previous commits. What happens if the
> line completely changes, or is in a complete rewrite of that code. I
> doubt it will be smart enough to follow a single line. Perhaps a range
> would be better?

I assume you missed the follow up?  It does exist: git log -L

It will follow a single line, a line range or a regex delimited search
set.

James