Mailinglist Archive: zypp-devel (70 mails)

[Michael Andres <ma@xxxxxxx>]

On Wed, Oct 31, Klaus Kaempf wrote:

> * Duncan Mac-Vicar Prett <dmacvicar@xxxxxxx> [Oct 31. 2007 10:51]:
> > > Solver algorithms:
> > > ------------------
> > >
> > > - the solver allows arch changes from/to noarch without complaining.
> > >   good or bad?
> >
> > good question. noarch is supposed to work, but I am not sure if this 
> > usecase 
> > really happens often. I can imagine a java package getting rid of some 
> > native 
> > extension, in this case the noarch package wll be the enhanced one by the 
> > package maintainer.
>
> I'm sorry to give the usual answer (;-)): Its a policy
>
> Opensuse customer will most probably not care at all, server admins _do_
> care about _any_ package change.
>
> > > - vendow changes are allowed from unknown to known. libzypp doesn't
> > >   allow that. Feature?
> >
> > There are not known vendors, there are vendor changes, and current libzypp 
> > behaviour is not select a different vendor in a upgrade as candidate, 
> > unless 
> > it s a explicit user transaction.
>
> Any change in vendor must be checked imho. The check should allow to
> set up 'equivalence classes' though.
>
> Vendor handling is similar to repository handling, regarding
> preference. If an admin sets up a local repository, packages from this
> repository should be preferred regardless of the vendor (or arch, or
> whatever).

Yes, but we don't want to adapt the solver each time we find some new rule 
how to rate and order the candidates.

So the solver can support a set of reasonable default policies, but it 
must be possible to pass each one-out-of-many decision to the application.

-- 

cu,
    Michael Andres

+------------------------------------------------------------------+
Key fingerprint = 2DFA 5D73 18B1 E7EF A862  27AC 3FB8 9E3A 27C6 B0E4
+------------------------------------------------------------------+
Michael Andres             YaST Development            ma@xxxxxxxxxx
SUSE LINUX Products GmbH, GF:  Markus Rex,  HRB 16746 (AG Nuernberg)
Maxfeldstrasse 5, D-90409 Nuernberg, Germany, ++49 (0)911 - 740 53-0
+------------------------------------------------------------------+

-- 
To unsubscribe, e-mail: zypp-devel+unsubscribe@xxxxxxxxxxxx
For additional commands, e-mail: zypp-devel+help@xxxxxxxxxxxx