Binary diffs for deb files
Matt Zimmerman
mdz at ubuntu.com
Tue May 2 04:15:50 BST 2006
On Tue, May 02, 2006 at 03:53:30AM +0100, James Hall wrote:
> On Mon, 2006-05-01 at 19:45 -0700, Matt Zimmerman wrote:
>
> > zsync seems to be the most promising solution to this class of problems.
>
> The deb file needs to be decompressed then put together again since
> doing binary diffs on gzip'ed files make very large diffs. Usually as
> large as the file itself - making the diff completely pointless. Zsync
> on compressed deb's would save no bandwidth.
>
> I wonder if there is a way of making the checksums match...
Take a look at zsync; it is supposed to work with compressed files by
calculating its delta based on the uncompressed contents.
--
- mdz
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