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Re: Question on loginfo.


From: Spiro Trikaliotis
Subject: Re: Question on loginfo.
Date: Wed, 21 Jun 2006 07:30:14 +0200
User-agent: Mutt/1.5.9i

Hello,

looking through one blog I regularly visit, I found the following
problem description about CVS:

  (http://kernelmustard.com/2006/06/20/the-hell-of-cvs/)
  The hell of CVS

  I.m a big CVS fan. Well, I was. Then, yesterday, I merged a very large
  set of changes associated with upgrading some parts of our build
  system from HEAD to our mainline stable branch.

  The first problem I had was the common one: I touched a lot of files
  across a long time, so the traditional tag-to-tag merge wouldn.t have
  worked. So I closed my eyes and held on tight and just let CVS
  re-merge everything. I ran cvs update to see what fun awaited me, and
  got a healthy but not overwhelming number of conflicts. A good many of
  them were the standard re-merge conflicts for which CVS is so
  (in)famous. OK, fine, resolved, committed.

  Then I went through and built it. Bang, build error. I fixed a few
  obvious merge bugs, and then I got to a file that was missing a change
  from HEAD. So: delete file, update to stable, merge from head. NO
  CHANGES.

  I updated to HEAD to be sure I wasn.t losing my mind. The build fix
  was there. Updated to stable again. Gone. Merge from head: nothing. I
  finally manually cvs diff.d the head revision (by number) with the
  stable revision (by number), and voila, out comes a diff! I grumble
  some more, output the diff to a patch, run the patch utility, and
  commit the change. Build works again.

  I.ve had it. It.s one thing to commit a Type II error by
  double-merging and conflicting - at least I know for sure what.s going
  on. But to fail to detect a change and falsely report the same - that
  is unacceptable and scares the hell out of me. I.ve been using CVS
  professionally for over a decade; at this point, I give myself credit
  for understanding the basics. If I.m doing something wrong, it.s
  non-obvious.

  So, I.m switching. This is ridiculous. I.m looking at (in probability
  order) SVK, Perforce, Subversion, and maybe darcs, arch, and
  (longshot) git. With a codebase our size, we need intelligent merging
  in a bad way, and perf is a concern. Anyone have any thoughts on any
  of these? Is SVK mature enough for serious commercial use? Or should I
  just bite the bullet and go to Perforce?


Has anyone experienced similar problems like the blogger, or can give
any help or advice?

BTW: I answered myself with:

  Just to be sure: Which version of CVS do you use? The .CVS Home.
  (http://www.cvshome.org/) version, or the .CVSNT. version
  (http://www.cvsnt.org/)? (Both on client and server) Which is the
  version number? (You might want to try .cvs version. for this)?

  Have you checked that this is not a known error in some older release
  of that software?

  I'll forward this link to the cvs-info mailing list. Perhaps, someone
  will come up with a valuable comment.

  - Spiro. 

Regards,
   Spiro.

-- 
Spiro R. Trikaliotis                              http://opencbm.sf.net/
http://www.trikaliotis.net/                     http://www.viceteam.org/




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