This is a python script which converts a CVS repository to an SVN Repository.

It works by:

  * using the rcsparse/ module to directly read the CVS repository
    and deduce commits,

  * creating a bunch of temporary scratchwork on disk,

  * replaying all of the commits into a new SVN repository.

Most of the script was written by Greg Stein (gstein@lyra.org) and
Daniel Berlin (dberlin@dberlin.org), with tweaks from Marko Macek
(Marko.Macek@gmx.net).


** The script works reasonably well, with two big caveats:

     - it doesn't do branches or tags very well yet

     - there may be tiny bugs in the way it deduces CVS commits.

   That said, the script has been used on straightforward CVS
   repositories with no real problems.  As an example, the whole first
   year of Subversion's own history was converted from CVS into a
   3000+ revision svn repository.  It took about 30 minutes.


** To use this script:

     - Install RCS.  cvs2svn uses the "co" command.

     - Get at least python 2.0.

     - Make sure you have GNU 'sort' installed, or some other sort
       program that handles large files other than by reading them
       entirely into memory.

     - Install the python swig bindings, so that python can directly
       invoke libsvn_fs routines.  See the INSTALL file in
       subversion/bindings/swig/.

     - If you're not running cvs2svn.py from this directory, then make
       sure to install the rcsparse/ tree somewhere where Python can
       find it.  Note that it's a CVS working copy, so we can update
       it easily :-).  Except for `compat.py', that comes from
       viewcvs/lib/compat.py.

       Rcsparse is currently part of ViewCVS, see
       http://viewcvs.sourceforge.net/.  Someday rcsparse will be an
       independent Python project, and then we can depend on it in a
       more normal way.