Re: Offering plasma-pk-updates as an alternative to Discover

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On Sun, 2021-05-09 at 09:28 -0400, Neal Gompa wrote:
> On Sun, May 9, 2021 at 9:19 AM Patrick Boutilier <
> boutilpj@xxxxxxxxxxx> wrote:
> > 
> > 
> > 
> > On 5/9/21 10:10 AM, Neal Gompa wrote:
> > > On Sun, May 9, 2021 at 8:19 AM Patrick Boutilier <
> > > boutilpj@xxxxxxxxxxx> wrote:
> > > > 
> > > > 
> > > > 
> > > > On 5/9/21 9:08 AM, Patrick Boutilier wrote:
> > > > > On 5/6/21 4:06 PM, Tomáš Trnka wrote:
> > > > > > Hello everyone,
> > > > > > 
> > > > > > After updating to F34, I was unpleasantly surprised by the
> > > > > > new Plasma
> > > > > > update
> > > > > > notifier (plasma-discover-notifier). Even though the previous
> > > > > > plasma-pk-updates
> > > > > > thing had its quirks and Apper also wasn't the most
> > > > > > featureful of package
> > > > > > managers, I still ran into a handful of issues with Discover
> > > > > > that make it
> > > > > > pretty much useless for me:
> > > > > > 
> > > > > > – There seems to be no way to select which updates to
> > > > > > install. All I
> > > > > > can see
> > > > > > is a list of available updates with a button to install all
> > > > > > of them,
> > > > > > but no
> > > > > > way to pick and choose a subset. (Yes, I could use
> > > > > > commandline DNF with a
> > > > > > whole bunch of "-x" arguments to get the job done, but the
> > > > > > point of a
> > > > > > GUI is
> > > > > > to make things more user friendly, isn't it?)
> > > > > > – I can't seem to find the description of individual package
> > > > > > updates
> > > > > > (the short
> > > > > > changelog that plasma-pk-updates shows when you click a
> > > > > > particular
> > > > > > package,
> > > > > > together with Bugzilla or Bodhi links). Again, getting these
> > > > > > any other
> > > > > > way
> > > > > > than through the GUI updater is a real hassle.
> > > > > > – The tray notifier doesn't let me actually do anything
> > > > > > directly, I
> > > > > > have to
> > > > > > wait for it to open a full Discover window and spend a long
> > > > > > while
> > > > > > loading the
> > > > > > updates, which is much more disruptive than the few seconds
> > > > > > needed to
> > > > > > trigger
> > > > > > updating through plasma-pk-updates.
> > > > > > 
> > > > > 
> > > > > Even worse is that every single update requires a reboot. I
> > > > > just took a
> > > > > fully updated system and then downgraded vlc. Updated with
> > > > > Discover and
> > > > > even though it only had to update vlc-core-3.0.13-1.fc34.x86_64
> > > > > and
> > > > > vlc-3.0.13-1.fc34.x86_64 it still required a reboot.
> > > > > 
> > > > 
> > > > Looks like this will be an option in 5.22 .
> > > > https://invent.kde.org/plasma/discover/-/merge_requests/111
> > > > 
> > > > Although I am not sure how doing an online vlc update will cause
> > > > an
> > > > "unstable system". It wouldn't be so bad if there were not almost
> > > > daily
> > > > updates available.
> > > > 
> > > 
> > > We don't have a heuristic for differentiating what a "safe update"
> > > and
> > > an "unsafe update" would be. In the VLC case, it would be "safe" as
> > > long as the phonon-vlc backend was not used for KDE Plasma (we
> > > don't
> > > use it by default, but someone could swap it in from a third-party
> > > build).
> > > 
> > > It can get fairly complicated, and it's always been a bad idea to
> > > update the desktop software while it's running from within the
> > > terminal of the said desktop, because you can lead to a scenario
> > > where
> > > you've temporarily caused a broken state that would only be fixed
> > > by
> > > rebooting anyway. For the majority of users, offline updates for
> > > packages is the correct behavior.
> > > 
> > > That said, yes, Plasma 5.22 (coming in a month) will introduce a
> > > user-accessible option to turn it off.
> > > 
> > > 
> > 
> > Is there any way for the packages themselves to "request" offline
> > updates? I agree that updating plasma, kf5-*, etc.. live is not a
> > good
> > idea. But something like nano for instance shouldn't need to be
> > updated
> > offline.
> > 
> 
> It is possible, but basically none of the PackageKit backends tell
> PackageKit this information, so the frontends are working blindly to
> try to do the right thing. I'm trying to figure out if I can extend
> the DNF backend to start offering that information.
> 
> Since Fedora has updateinfo and we (Fedora KDE team) set the value
> correctly when we submit updates, it should be possible for me to
> plumb this through. It looks like I'll need to extend libdnf's API
> first to do it, so that's going to take some time.

Hello, 
Sorry I will ask a complete off-topic question. 
I had remove packageKit of my system because it didn’t work well and
used a second database of rpms, today after reviewing the bugs opened
about 10 years ago, I found this one [1] that took 5 years to close but
they didn’t answer my question, the packagekit already uses the same
base of dnf data? 
As far I'm concerned I would be happy if we drop packagekit
dependencies. 

Best regards, 
[1] 
https://bugzilla.redhat.com/show_bug.cgi?id=1256108#c44


-- 
Sérgio M. B.
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