Re: [PATCH setup 00/14] Use libsolv, solve all our problems... (WIP)

[Ken Brown <kbrown@cornell.edu>]

On 12/5/2017 9:32 AM, Jon Turney wrote:
> On 14/09/2017 21:46, Ken Brown wrote:
>> On 9/14/2017 1:26 PM, Achim Gratz wrote:
>>> Ken Brown writes:
>>>> What I've been struggling with, however, is the UI.  But now that I
>>>> think about it, maybe it isn't that hard.  It's just a matter of doing
>>>> something reasonable if the user unchecks "Accept default problem
>>>> solutions".  I'll see what I can come up with.
>>>
>>> Well, zypper pretty much just gives you a bunch of possible solutions
>>> and asks you to select one if there is either more than one or the
>>> otherwise preferred solution is blocked by a lock.  There is always one
>>> "break <whatever> package by doing <stuff>" down that list.  You could
>>> maybe offer something along those lines in the inevitable dialog box?
>>
>> In the long run I think that's the way to go.  But implementing that 
>> is more work than I feel like doing at the moment.  For now I've gone 
>> with an approach that was easier to program, more like the current 
>> setup.exe.   If the solver finds problems (including missing 
>> dependencies), the user has four choices on the Prerequisite page:
>>
>> 1. Click Back to go back to the Chooser page, with the Pending view 
>> showing the solver's default solutions.
>>
>> 2. Click Next to accept the default solutions.
> 
> Doing some testing of per-version requires, I've been looking at this 
> page quite a bit.
> 
> It seems we're missing something to actually apply the default solution, 
> so "accept default solutions" makes no changes, at the moment. (looks 
> like we have to do this ourselves with solver_take_solution() ?)

I'm not sure.  I thought at some point I saw "accept default solutions" 
do something, but there have been a lot of changes since then.

> Also, in the dependency problem report, we should identify which of the 
> possible solutions is the default one, so it's clearer what "accept 
> default solutions" is going to do.

Agreed.

Ken