[packagekit] yum2 error fixes

[Tim Lauridsen]

Robin Norwood wrote:
> On Fri, 15 Feb 2008 20:30:32 +0100
> Tim Lauridsen <tim.lauridsen at googlemail.com> wrote:
> 
>> Robin Norwood wrote:
>>> o Is 'yum cache invalid' a correct description for any RepoError, or
>>> are there other error cases that throw RepoErrors?
>>>
>> RepoError is raised, if there is something wrong with metadate, i 
>> cacheonly mode, then it is because some need metadata is missing.
>> There is some other cases when not in cacheonly mode, but this is
>> thing we cant solve any way. (Ex. bad configuration i .repo files)
>>
>>> o Is there anything we can do inside PK to recover from this?
>> We can refreshcache and try again.
> 
> Ok.  That takes almost a minute on my system.  What's the best way to
> notify the engine so the user
> 
>         except yum.Errors.RepoError,e:
>             self.ErrorCode(ERROR_NO_CACHE,"Yum cache is invalid. Rebuilding.") 
>             self.Finished(EXIT_FAILED)
>             self.StatusChanged(STATUS_WAIT)
>             self._refresh_yum_cache()
>             return

I am not sure we should do this (self._refresh_yum_cache()) we should 
just signal to pk that the cache is invalid, and then pk should call 
RefreshCache(). Hughsie?

Tim