On Fri, Apr 13, 2018 at 12:17:16PM -0700, Steve Langasek wrote: > On Fri, Apr 13, 2018 at 02:53:13PM -0400, Jeremy Bicha wrote: > > On Fri, Apr 13, 2018 at 1:13 PM, Brian Murray <br...@ubuntu.com> wrote: > > > Why is it necessary to modify individual packages so that GNOME > > > Software won't uninstall them? > > > > Is update-manager being a dependency of ubuntu-desktop not enough to > > > prevent it from being uninstalled? > > > Thank you for asking. > > > GNOME Software does not notify the user about dependencies that will > > be uninstalled. Packages and dependencies are details that are not > > exposed at all to users of GNOME Software. > > > > If it is necessary to modify every package which a metapackage depends > > > on how is this work being tracked? > > > Nothing is tracking this. I am making sure that the AppStream metadata > > is in place and set correctly for ubuntu-desktop only. The apps that > > are depends of ubuntu-desktop are gnome-control-center, nautilus, > > software-properties-gtk, update-manager, and yelp. Recommends are not > > a problem as they can be removed without removing the metapackage. > > > (I have also removed the compulsory-for-GNOME tag from epiphany and totem.) > > > This has been an issue since Ubuntu 16.04 LTS but it wasn't a big > > enough priority to anyone to fix until now. > > > I wasn't planning on backporting this to 16.04 but it could be done by > > someone. > > I am concerned about the model here by which individual packages need to add > blobs of metadata on the filesystem to declare themselves "not for removal". > This is completely disconnected from the existing logic for managing > metapackages, which is expressed through the central Packages files and > apt's logic for metapackage dependencies. > > Why is GNOME Software removing dependencies of packages /at all/? Why are > the decisions about dependency removal not being delegated to apt, instead > of being reimplemented poorly?
I don't believe PackageKit/GNOME Software does anything different here. What happens is that e.g. ubuntu-desktop depends on nautilus, but if you remove nautilus, ubuntu-desktop is removed too. That's the same in APT and PackageKit. What I feel like should happen is to automatically generate compulsory metadata in appstream generator from task fields or something. -- debian developer - deb.li/jak | jak-linux.org - free software dev ubuntu core developer i speak de, en -- ubuntu-devel mailing list ubuntu-devel@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel
