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Re: incremental conversion from other SCM to svn by vcp

From: Greg Stein <gstein_at_lyra.org>
Date: 2003-06-09 04:13:32 CEST

On Sun, Jun 08, 2003 at 12:35:56PM -0500, kfogel@collab.net wrote:
> Chia-liang Kao <clkao@clkao.org> writes:
> > cool. i just skimmed the svndumpfile format, and it seems the
> > nodes for change is using the full content of the file instead
> > of delta. is there any reason for it? also, is it possible for
> > loading to non-empty repository?
> They're fulltext for simplicity. We could use deltas (as long as the
> fulltexts can always be reconstructed using only data in the
> dumpfile). We may have to switch to deltas eventually, given the
> sizes of some of the repositories cvs2svn converts...

One of the reasons for the fulltext is to enable third-party tools to
interact with the dumpfile more effectively. If we put our delta format in
there, then we'd have to grow whole new Python/Perl/whatever libraries to
enable those scripting languages to parse out the deltas.

One of the other reasons is that if we change our delta format, then it
wouldn't invalidate a bunch of dumpfiles that might be out there. Granted,
we'd have a compatability reader to deal with the old format, but with the
full-texts, we don't have to worry about that right now.


Greg Stein, http://www.lyra.org/
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Received on Mon Jun 9 04:10:07 2003

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