Re: cvsimport/cvsps: wrong revisions in branch

[Simon 'corecode' Schubert <corecode@fs.ei.tum.de>]

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Uwe Kleine-König wrote:
> I don't know ruby nor hg, but I managed to clone your repo.  Now I'm
> stuck with:
> 
> 	zeisberg@cepheus:~/hsrc/fromcvs$ ruby1.8 fromcvs.rb 
> 	fromcvs.rb:1:in `require': no such file to load -- rcsfile (LoadError)
> 	        from fromcvs.rb:1

yes, you need the rcsparse module, available from the same address.

> Is there some documentation how to get that to work?

I've written it a million times to different people on irc, but somehow I never got around to making a README out of it.  I'll write it up very condensed here and add this as a base for a README to the the repo.

From CVS to * in little time
============================

Prerequisites:
  - ruby (1.8.5 known working)
  - fromcvs, <http://ww2.fs.ei.tum.de/~corecode/hg/fromcvs>
  - rcsparse, <http://ww2.fs.ei.tum.de/~corecode/hg/rcsparse> (ruby module)
  - Ruby/RBTree, <http://raa.ruby-lang.org/project/ruby-rbtree/>
  - for git: git-fast-import, <git://repo.or.cz/git/fastimport.git/>
  - for hg: ruby-python, <http://ww2.fs.ei.tum.de/~corecode/hg/ruby-python>


How to convert a CVS repo:

There is still a nice frontend missing, so you have to invoke the scripts by hand.

% mkdir gitdest && (cd gitdest && git init)
% ruby togit.rb /path/to/cvsroot modulename gitdest
% cd gitdest && git-repack -a -f -d      # optional, saves 20% or so

If you want to get nice author names, create setup the file authormap:

cat > /path/to/cvsroot/CVSROOT/authormap
corecode	Simon 'corecode' Schubert <corecode@fs.ei.tum.de>
jdoe		Jon H. Doe <hannidoe@example.net>
branch-fixup	CVS repo conversion <flames@example.net>

that's about for the quickstart.  be sure to report conversion errors or runtime issues (possibly due to obscure CVS repo activity) to me.

cheers
  simon

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