Bug 1437884

Summary:	[RFE] Selectively ignore weak dependency when recommended by specific package
Product:	[Fedora] Fedora	Reporter:	Vít Ondruch <vondruch>
Component:	dnf	Assignee:	rpm-software-management
Status:	CLOSED DEFERRED	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	fweimer, jmracek, jpokorny, packaging-team-maint, rpm-software-management, samuel-rhbugs, vmukhame
Target Milestone:	---	Keywords:	FutureFeature
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Enhancement
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-04-18 13:45:40 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Vít Ondruch 2017-03-31 12:12:15 UTC

Description of problem:
Disable installation of specific soft dependency chain. Although there is currently possible to "exclude=python-systemd-doc", this means to exclude such package forever. But I'd like to exclude the soft dependency only if it is pulled in by specific package, e.g. python3-systemd in this case. 

It is quite annoying that I need to exclude such package every time I am updating python3-systemd, but in other cases (I don't have better example in my hand right now) when it is recommended by other package, I might be interested to pull this package in.


Version-Release number of selected component (if applicable):
$ rpm -q dnf
dnf-2.1.0_1-28g5145f58.fc27.noarch


How reproducible:


Steps to Reproduce:
1.
2.
3.

Actual results:
The weak dependencies must be disabled again and again.


Expected results:
I'd like to be able to specify that if package A recommends package B, I'd like to always ignore such recommendation. But I might want to consider installation of B when package C recommends it.


Additional info:

Comment 1 Jaroslav Mracek 2017-04-18 13:45:40 UTC

I am sorry Vit, but I have to disappoint you. I have tried to fix the issue in https://github.com/rpm-software-management/dnf/pull/774, but during discussion it appears a problem with too difficult implementation to do selective handling of weak-deps. Unfortunately your request is even more specific that original one in https://bugzilla.redhat.com/show_bug.cgi?id=1278196. Therefore I have to to close it as deferred, therefore in future we can reopen it when we will have possibilities to solve such a complex request.