[Aptitude-devel] Bug#1087005: aptitude: TUI does not show all package action changes if package actions are changed while already in preview

[Vincent Lefevre]

On 2024-11-08 00:50:14 +0100, Axel Beckert wrote:
> What happened in your is that it appeared together with something
> which is as far as I can see not a bug but a design decision:
> 
> >                 Packages                                Preview
> > aptitude 0.8.13 @ cventin                Disk: -172 MB
> > --\ Packages being removed because they are no longer used (3)
> > ipA linux-headers-6. -4012 kB  6.10.9-1                 6.10.9-1
> > ipA linux-headers-6. -61.4 MB  6.10.9-1                 6.10.9-1
> > ipA linux-kbuild-6.1 -2271 kB  6.10.9-1                 6.10.9-1
> > 
> > In particular, the "Disk:" value has changed. And still no other
> > packages are marked as to be removed, which is contradictory
> > with the change of the "Disk:" value.
> 
> Please note: The grouping and limiting of a view in aptitude is never
> automatically updated, as this would cost a lot of time after every
> package action change. You might have noticed how much time building a
> view can take if a system is under load or quite some sources are
> listed in /etc/apt/sources.list*.
> 
> Package action changes only update the status line on top and the
> color and first column of the packages whose action changed (either by
> explicitly selecting an action or by dependency resolution).
> 
> It does not add packages to a view which is limited to a specific set
> of packages nor does it update their grouping. (Changing the latter
> would also make the UI unusuable.)

OK, but then, aptitude should at least warn if the preview is not
up-to-date when the user hits 'g' to perform the pending operations.

Alternatively, 'g' could have the effect to update the preview
(like 'qg') if it is no longer up-to-date.

-- 
Vincent Lefèvre <vincent at vinc17.net> - Web: <https://www.vinc17.net/>
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