Mailinglist Archive: zypp-devel (27 mails)

[Jano Kupec <jkupec@xxxxxxx>]

Michael Andres wrote:
> On Tuesday 04 August 2009 20:45:41 Elmar Stellnberger wrote:
> >   Zypper -dup may choose to remove important user programs if it can not
> > satisfy its dependencies. This is especially the case if zypper wants to
> > switch the arch of certain packages as in Bug 506801
> > (https://bugzilla.novell.com/show_bug.cgi?id=506801).
>
> Where you did a 'zypper dup --repo myrepo', and several packages got deleted 
> because the solver assumes they are orphaned. This happens because --repo 
> currently hides all repos except myrepo from the solver.

Yes, Elmar knows that. I suggested to bring this up on this list because
 this can happen with any command (even 'zypper rm glibc'). I wonder why
we ship the systemCheck with only glibc. Although it's up to the user to
edit this file, why not put more stuff there?

> A few days ago I wrote about the new Resolver::addUpgradeRepo which is 
> intended to solve this problem. With this call the solver is aware of all 
> repos and should be able to make better decisions.
>
>
> What bothers me more than the content of /etc/zypp/systemCheck (which is a 
> user config file), is the question whether it is actually worth to keep the 
> old 'zypper dup --repo' behaviour?
>
> It's a shortcut for
>
>       disble all repos except myrepo
>       zypper dup
>       enable the repos again

Exactly. In short - load only the specified repos for current operation.

> IMO this is not a feature, but just worked around a missing functionality in 
> the solver. Now as the functionality is present, I'd prefer to fix '--repo' 
> instead on introducing a new '--form' option. 
>
> I wouldn't consider this as breaking backward compatibility, but fixing a 
> buggy and dangerous behavior.

OK, IMO current --repo makes sense as well (for developers at least, if
not users), but since i am apparently the only one who thinks so, i'll
be happy to change it to what i proposed to be --from. Starting with
dup, and later, as we add necessary API to libzypp also in the other
commands.

If anyone wants to keep this feature, please speak up! I vote for
keeping it :O)

-- 
cheers,
jano


 Ján Kupec
 YaST team
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