Binary diffs for deb files

Colin Watson cjwatson at ubuntu.com
Tue May 2 23:10:08 BST 2006


On Tue, May 02, 2006 at 02:50:50PM -0700, Matt Zimmerman wrote:
> On Tue, May 02, 2006 at 10:14:50PM +0100, James Hall wrote:
> > Some other issues I have with zsync are:
> > 
> > 1. How easy would it be to recompress all the packages with the gzip
> > --rsync flag?
> 
> Trivial.  At the appropriate time, we enable this flag by default for
> dpkg-deb, and all builds from that point forward produce rsyncable debs.

dpkg-deb uses zlib for compression, not gzip. Last time I talked to
Scott about this, I seem to remember that he said that it was
non-trivial to enable rsyncability because the gzip --rsyncable patch
was done in gzip rather than in zlib, and would require some moderately
complex porting work.

-- 
Colin Watson                                       [cjwatson at ubuntu.com]



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