Feature changed by: Feature crawler (fate_crawler) Feature #300758, revision 56 Title: Show orphaned packages
openSUSE-10.2: Rejected by Thorsten Kukuk (kukuk) reject date: 2006-08-02 11:31:19 reject reason: For SL10.2 we have to get libzypp really stable and fast before we add new features. Priority Requester: Important
openSUSE-10.3: Rejected by Stanislav Visnovsky (visnov) reject date: 2007-07-17 17:03:57 reject reason: Postponing. Priority Requester: Important Projectmanager: Desirable
openSUSE-11.0: Rejected by Stanislav Visnovsky (visnov) reject date: 2007-11-21 12:16:20 reject reason: Out of scope for 11.0 Priority Requester: Important
openSUSE-11.1: Rejected by Stanislav Visnovsky (visnov) reject date: 2008-07-07 13:34:02 reject reason: Postponing, needs underlaying infrastructure to be fixed first. Priority Requester: Important
openSUSE-11.2: Evaluation Priority Requester: Important
- Requested by: Stephan Binner (beineri) + Requested by: JP Rosevear (jproseve)
Description: The package manager should learn to show orphanized packages (packages which are not required by other packages and are not in wanted selections) and allow to deinstall them like the popular debfoster/deborphan tools. A typical use case: user installs an application which pulls in some dependencies to test it, uninstalls the application shortly after or way later but the dependencies stay unused installed on the system. Commandline UI (zypper) only.
Discussion: #1: Jiri Srain (jsrain) (2007-06-05 13:46:00) Schubi, is there any possibility to make solver tell which packages are orphanized? It would be interesting especially if the packages which are marked for deletion were considered as non-installed (eg. if foo- devel is installed but marked for deletion and nothing else requires foo, then foo is orphanized).
#2: Stefan Schubert (schubi2) (2007-06-06 11:04:04) (reply to #1) Currently not cause the solver has no information about who (user, package,...) has triggered the installation of a package. If we are storing this information it would be possible for solver to remove these kind of packages too. It is not simple but doable. By the way, we will have to store this kind of information in the future. E.g. we need to save the "keep state by user" in a database in order to regard this state in future solver runs.
#3: Jiri Srain (jsrain) (2007-06-06 14:25:07) (reply to #2) Looks like a missunderstanding. Basically every package wihch is not required/recommended/suggested or doesn't enhance anything that is installed and not marked for deletion is IMO considered to be orphanized. If user eg. wants to remove a pattern including all its packages (which are not required by something else), solver providing this kind of information would help a lot (and I don't think that we would need any other information to be stored.
#4: Stefan Schubert (schubi2) (2007-06-06 15:33:44) (reply to #3) I do not think so. What does "orphanized" mean ? Let me take your example from comment #1. foo should be deleted too if the user delete foo-devel and foo has been installed due the requirement of foo-devel. BUT the user will kill us if we are deleting foo although the user has installed foo explicit sometime ago in a seperate installation workflow. So this information ( The USER has installed foo) will be currently not saved and is needed here to decide if foo has to be deleted or not.
#5: Stefan Schubert (schubi2) (2007-06-06 15:39:47) (reply to #3) Lets take your example concerning the erasing of patterns. That is much more complex. I have already described the problem here: http://en.opensuse.org/Libzypp/Solver#Known_Problems " Proper behaviour of erasing patterns" There are already some bugzilla entries: Bug 274283 - Delete iFolder from YaST makes eDirectory Delete mandatory Bug 238250 - YaST does not upgrade an Add-on Product
#6: Jiri Srain (jsrain) (2007-06-08 16:46:32) See also https://bugzilla.novell.com/show_bug.cgi?id=166132 This is another use case for the same solver functionality
#8: Federico Lucifredi (flucifredi) (2008-06-12 20:46:17) this should be commandline-only, definitely an advanced-user option.
#9: Federico Lucifredi (flucifredi) (2008-06-12 20:47:28) cut from description: See Bug 140346
#10: Duncan Mac-Vicar (dmacvicar) (2008-11-03 11:24:53) As discussed in Prague, this could be done using the package history once we have a reader.
#11: Karsten König (remur) (2009-01-19 10:09:49) How about using rpmorphan, I agree with flucifredi about the command line idea... http://rpmorphan.sourceforge.net/ And otherwise you could use their system to find orphanized packages and display them in yast but make clear that deleting -all orphanized packages will also delete the ones explicitly installed... (it only detects wether the package fullfiles any requirement...)
#12: Ján Kupec (jkupec) (2009-01-19 14:48:38) (reply to #11) I'm not the solver developer, but i'm pretty sure it's easy (and probably more effective) to find the 'leaf' packages (that's what rpmorphan seems to do) using existing solver (see satsolver package). But we don't want to just highlight leaf packages, we want to remove unused packages, that is all leaves minus those explicitly installed. So we will feed the solver with this 'explicitly-installed' information. The package history will be the source of this info for now. Maybe later we find some way to store this info that could be used across tools (e.g. directly in the rpm db). So rpmorphan will be able to use this info as well.
#13: Pavol Rusnak (prusnak) (2009-01-19 15:44:26) (reply to #12) Yes, that's good idea. Detecting leaf packages is the first step. Detecting which ones to remove (i.e. not explicitly installed) is the second. I think that rpmorphan shows all leaf packages, but it selects only the ones that start with "lib". If we strictly followed library packaging policy that would do the trick. btw. rpmorphan is packaged in Contrib (http://en.opensuse.org/Contrib)