Re: CVS -> SVN -> Git

On Sat, Jul 14, 2007 at 07:09:30PM +0200, Michael Haggerty wrote:

Martin Langhoff wrote:

quoted

On 7/14/07, Michael Haggerty [off-list ref] wrote:

quoted

Incidentally, now that cvs2svn 2.0.0 is nearly out, I am thinking about
what it would take to write some other back ends for cvs2svn--turning
it, essentially, into cvs2xxx.  Most of the work that cvs2svn does is
inferring the most plausible history of the repository from CVS's
sketchy, incomplete, idiomatic, and often corrupt data.  This work
should also be useful for a cvs2git or cvs2hg or cvs2baz or ...

Great to hear that. I'm game if we can do something in this direction
- surely we can make it talk to fastimport ;-)

We added some hooks to cvs2svn 2.0 to start working in this direction.
But I don't really know what information is needed for a git import.
One quick-and-dirty idea that I had was to have cvs2svn output
information compatible with cvsps's output, as I believe that several
tools rely on cvsps to do the dirty work and so could perhaps be
persuaded to use cvs2svn out of the box.

Depending on how difficult that is, it might be very useful, even
if it's not the best way to interface with fast-import (which I
suspect it's not).  I, for one, would be interested to know how
cvs2svn's output compared to CVSps's, especially w.r.t. detecting each
branch's parent.

Perhaps one is always more correct than the other, but if not, I bet
that seeing the differences using the same format would help to
improve either one.

-chris