[Aptitude-devel] Bug#791662: aptitude: debdelta integration

[A Mennucc1]

dear all,

first of all, I am happy to see that debdelta is useful.

There was an attempt to integrate in aptitude in the past, as a
apt-method (there are some traces in the code since).

But keep in mind that debdelta is integrated in 'cupt' that is another
package manager, similar to 'aptitude'.

A.

Il 15/03/2016 00:04, Axel Beckert ha scritto:
> Hi,
>
> Yuri D'Elia wrote:
>> First, some debdelta praise: I've been using debdelta on and off over the last
>> years depending on the circumstances. Whenever I'm working on a lousy/slow
>> internet connection (quite often, unfortunately), debdelta is effectively my
>> only chance to perform upgrades to massive packages like tetex, libreoffice, or
>> the like. The bandwidth saving are, in most cases, absolutely enormous
>> (especially when packaging tweaks are being pushed).
> Same here.
>
>> It would be awesome if aptitude itself supported debdelta when installed. This
>> would mean to run `debdelta-upgrade [selected package list]` as opposed to
>> downloading the packages directly. I couldn't care less about the progress
>> meter in this scenario, and having "something that works" would be better than
>> just running "debdelta-upgrade" blindly and then continuing with aptitude.
> aptitude uses apt methods to download files. So I think that
> integration should be done as an apt method for easier integration
> with _any_ apt based package manager and to avoid duplicating the
> integration effort.
>
> The documentation for developing such a backend is at
> /usr/share/doc/libapt-pkg-doc/method.html/index.html (in the package
> libapt-pkg-doc).
>
>> I believe *many* users would realize debdelta existed if debdelta was actually
>> integrated into aptitude and suggested as a dependency. debdelta is suggested
>> by 'libcupt' (and thus, when cupt is installed), but sincerely I have no use
>> for another frontend if I'm already using aptitude.
> JFTR: cupt is _not_ yet another frontend but on the same level as apt.
>
>> It would also be *very* important, irregardless if debdelta is installed and/or
>> if it will ever be integrated on a lower level, to allow the user to switch
>> between regular/debdelta updates though an option in the configuration:
>> debdelta trades between CPU time and bandwidth, and if you have a decent
>> network connection, debdelta is often slower. A setting is definitely
>> warranted.
> Definitely, yes.
>
> 		Regards, Axel


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