From: Ryan Anderson <ryan@michonline.com>
Date: Wed, 23 Nov 2005 13:51:50 GMT
Subject: Re: [PATCH] Add git-graft-ripple, a tool for permanently grafting history into a tree.
Message-ID: <20051123135150.GA16995@mythryan2.michonline.com>
In-Reply-To: <Pine.LNX.4.64.0511221652530.13959@g5.osdl.org>

On Tue, Nov 22, 2005 at 04:55:04PM -0800, Linus Torvalds wrote:
> On Tue, 22 Nov 2005, Ryan Anderson wrote:
> >
> > Enhancements over the original example:
> > 
> > 	o Each newly created commit A' references A, and (A^1)' (The first try
> > 	referenced A^1 and (A^1)' but not A)
> > 
> > 	o Support for incrementally rewriting history is present.
> 
> How about the case of having commits that have pointers to other commits 
> in the comments? 
> 
> For example, on the kernel do
> 
> 	gitk 19842d67340e4a8f616552d344e97fc7452aa37a
> 
> and see how gitk highlights the SHA1's in the commit message and makes 
> hyperlinks to the commits they point to..

For some reason, my gut says that this goes too far.  I'm having a hard
time pinning down a way to explain that.

I guess something (untested) like this could do it, right before I call
git_commit_tree():

	my $found;
	do {
		$found = 0;
		if ($csets{$old}{comments} =~ /\s([a-f0-9]{40})\s/ &&
			exists $newcsets{$1}) {

			my $tcommit = $1;

			$found = 1;
			$csets{$old}{comments} =~ s/$tcommit/$newcsets{$tcommit}/g;
		}
	} while ($found);

I'm not entirely convinced this is a good idea, but there it is.

I'll write up a patch later for this (probably switching to GetOpt in
the process.)

-- 

Ryan Anderson
  sometimes Pug Majere