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Re: Merging from a foreign repository and svn:id keyword

From: Christoph Bartoschek <bartoschek_at_or.uni-bonn.de>
Date: Mon, 14 Mar 2011 18:25:42 +0100

Am Montag, 14. März 2011 schrieb Nico Kadel-Garcia:
> On Mon, Mar 14, 2011 at 12:11 PM, Christoph Bartoschek
>
> <bartoschek_at_or.uni-bonn.de> wrote:
> > Hi,
> >
> > I would like to merge the changes of a directory in repository A to a
> > directory in repository B. My problem is that several merges fail because
> > of the id keywords.
> >
> > Svn diff for example shows:
> >
> > -/*
> > -** $Id: st_opt_small.c,v 1.3 2004/03/08 17:25:57 mueller Exp $
> > -**
> > -** $Locker: $
> > -*/
> > +/* $Id$ */
> >
> > The removed Id line cannot be found in repository B because a different
> > user created it. It looks like:
> >
> > ** $Id: st_opt_small.c 2 2011-03-14 15:17:33Z bartosch $
> >
> >
> > The merge then fails with a conflict because it cannot find the line of
> > the diff. How can I let merge ignore conflicts that arise because of
> > expanded Id lines?
> >
> > Or how to prevent Id expansion locally and in the diffs?
> >
> > Christoph
>
> The easiest way is to *NOT* use Id and similar keyword expansion, at
> all. That's the Linux kernel approach. They can be very, very nasty
> indeed to parse and merge.
>
> Second, pick a single format for comments and keywords and *stick with
> it*. The switch in syntax from multi-line commented entries to single
> line comment entries is biting you hard here and confusing your diffs
> noticeably.
>
> Sadly, you can't outsmart the ability of people to tweak formats. The
> simplest way is to resolve the merge manually.

I would like to get rid of Id expansion but I have to use what our group has
agreed on.

It would help me if I could create a checkout where svn:keywords are not
expanded and if I could tell svn merge to also not expand the keywords. Is
this somehow possible?

If you tell me where to look I could also compile a svn client version for me
that prevents the expansion. Basically I think that it should be a one-liner
to prevent the expansion.

Christoph
Received on 2011-03-14 18:26:17 CET

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