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Re: Commit ID Enhancement
Derek Robert Price
Re: Commit ID Enhancement
Wed, 26 May 2004 09:58:03 -0400
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Mark D. Baushke wrote:
> Derek Robert Price <address@hidden> writes:
> >Jim.Hyslop wrote:
> >>Derek Robert Price wrote:
> >>>It occurred to me that a "Commit ID" implemented as a tag might
> make a
> >>>useful addition to the CVS feature-set.
> >>CVSNT has a unique commit ID, but it doesn't look like it's
> >implemented as a
> >>tag. The sample log at http://www.cvsnt.org/wiki/MergePoint shows, in
> >>revision 1.8
> >>date: 2003/11/06 21:53:13; author: gstarret; state: Exp; lines:
> +0 -0;
> >>kv; commitid: 257f3faac2c9c824; mergepoint: 188.8.131.52;
> >>changed for some reason
> >>Does this come close to what you had in mind?
> >I suppose. As long as the commitid would be given special
> >properties there may not be any good reason to treat it
> >exactly like a tag otherwise, but there would be some
> Hmmm... I thought the best part of the commitid feature was
> that it set an environment variable COMMITID that could be
> used to better allow commitinfo/verifymsg/loginfo to share
> information between themselves...
That is interesting.
> I suspect that the commitid -- a unique per-commit value
> which is based on the pid, time and a rand() sixteen bit
> value in hex format may also be used where a symbolic tag
> exists (e.g., cvs diff -u address@hidden) to address
> only those files handled by the 77653f84ac702eeb cvs commit.
This is what I had in mind. The `@' looks like the character to
escape the current tag namespace I was talking about. I also thought
that cvs up address@hidden should do some implicit calculations
and only back out this one commit rather than calculating a GCM, were
> >What sort of mergepoint processing does CVSNT do? The link you sent
> >appears to be down just now.
> Well, here is the link I found...
Am I blocked from the CVSNT site in some way? I still can't get
through and don't think I have been able to in a week or two.
> 1. What is a mergepoint, and how does one use it?
> Mergepoints help cvsnt find the common ancestor when trying
> to diff a file, which greatly reduces the effort required to
> merge in branches. It is automatically saved by cvsnt when
> you merge changes from one branch to another. Just make sure
> you commit after merging (before performing any other
> merges) and cvsnt will save the mergepoint field with the
Ah! That is interesting! Not necessarily complete, you'd need two
endpoints for that, but interesting!
Get CVS support at <http://ximbiot.com>!
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