hi,

On Tue, Oct 27, 2009 at 01:25:35PM +0530, Ritesh Raj Sarraf wrote:
> On Tuesday 27 Oct 2009 12:48:21 Debian Bug Tracking System wrote:
> > xdelta3 is in the list of recommends
> >
> Many users still use apt-get. So, it would be good to keep apt-get from 
> Dependency point of view.

apt-get does install recommends packages by default
(unless you specify --no-install-recommends , or set a conf variable)

example
# dpkg -p libgpod4 | grep Recomm
# apt-get install libgpod4
...
The following extra packages will be installed:
  libgpod-common
...

so most people will have 'xdelta3' 'bsdiff' etc etc installed in their 
box

> > when creating deltas, you can choose the --delta-algo,
> > and the default is not xdelta3, it is bsdiff
> > 
> No. I didn't set anything myself. xdelta3 was chosen by (default) itself. If 
> it wasn't the default, bsdiff should have been used automatically instead.

There is a misunderstanding. To create delta files, you use 
'/usr/bin/debdelta' or '/usr/bin/debdeltas'. When creating deltas, you 
can choose the --delta-algo, and the default is not xdelta3, it is 
bsdiff . Once the delta is created, anybody that wants to apply it
will need that backend that was specified when creating it.
(You can obtain details regarding a delta using 'debpatch --info')

Currently in my server I use '--delta-algo xdelta3' for the
unstable repository, so anybody tracking 'unstable' and running
'/usr/bin/debdelta-upgrade' will need 'xdelta3'

Currently in my server I use '--delta-algo bsdiff' for the
stable-security repository, so anybody tracking 'stable' and running
'/usr/bin/debdelta-upgrade' will need 'bsdiff' 

(Those may change in the near future... I have some neat ideas).

a.



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