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  • From: Arwed von Merkatz <v.merkatz AT gmx.net>
  • To: sm-discuss AT lists.ibiblio.org
  • Cc: Casey Harkins <charkins AT upl.cs.wisc.edu>, Laurent Wandrebeck <low AT mren2.univ-littoral.fr>
  • Subject: Re: [SM-Discuss] 0.8.0-pre2 iso
  • Date: Thu, 11 Dec 2003 10:33:17 +0100

On Thu, Dec 11, 2003 at 10:18:48AM +0100, Arwed von Merkatz wrote:
> On Wed, Dec 10, 2003 at 08:36:16PM -0800, Seth Alan Woolley wrote:
> [snip]
> > Why do I think xdelta is bad? It's relatively unmaintained, and it has
> > no bzip2 support. No bzip2 support is the killer for me. If we do use
> > xdelta, we should ignore the built-in tar.gz support and do the delta on
> > .tars (the delta itself would be gzipped, of course, for transit). I
> > was going to consider just doing diff/patches, but since most version
> > bumps rename the main directory the files are in, diff -Nuar on the
> > directories would be ... useless, unless we could work around that with
> > custom coding. Getting useful bzip2 support put directly into xdelta
> > would be really nice, too, but I think it's non-trivial (but a better C
> > coder than I could certainly take a shot at it).
>
> I thought xdelta was a true binary diff that wouldn't need to support
> file formats. If i was mistaken with that, there _is_ a real binary diff
> named zidrav [0]. It's real purpose is to repair files that got
> corrupted during a transfer, but if i remember correctly (it's been some
> time since i used it) it could be used for the same purpose as xdelta.
>
> [0] http://sourceforge.net/projects/zidrav

Replying to myself here, zidrav only works for files with the same size
unfortunately.

--
Arwed v. Merkatz
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