[Buildroot] [PATCH] pkg-infra: allow dumping reverse dependencies of a package

[Arnout Vandecappelle]

On 27-09-16 23:32, Yann E. MORIN wrote:
> On 2016-09-27 22:40 +0200, Arnout Vandecappelle spake thusly:
>> > 
>> > 
>> > On 25-09-16 14:56, Yann E. MORIN wrote:
>>> > > Finding the packages that select another one in a specific configuration
>>> > > is not very trivial:
>>> > > 
>>> > >   - when optional, the dependency is not expressed in Kconfig
>>> > > 
>>> > >   - looking at the .mk files is not very nice.
>> > 
>> >  If I understand correctly, the idea is to answer the question "why is package
>> > foo built?", right?
> Right. In my use-case, that was "what do I need to disable so I can
> disable that broken package?".
> 
>> >  It would make sense to also add a foo-graph-rdepends, because often you'll want
>> > the transitive dependencies as well and it's always nice to have it in a graph.
> Yup, planned. But not trivial...

 No? Isn't it just calling foo-show-rdepends from graph-depends?

> 
>> > But this patch is of course a prerequisite of that feature.
> And it proved already usefull in its own right. ;-)
> 
>>> > > Introduce a way to dump reverse dependencies of packages, i.e. the list
>>> > > of packages that directly depend on that package. Like for direct
>>> > > dependencies, we limit the list to the first-order reverse dependencies.
>>> > > 
>>> > > Document it in the main help; use the opportunity to also docuemnt
>> >                                                             document
> Boaf... One typo more, one typo less... I stopped countign a long time
> ago! ;-)

 countign, really? :-P


 Regards,
 Arnout

-- 
Arnout Vandecappelle                          arnout at mind be
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