Re: [gentoo-dev] Re: RFC: extending pkgmove (slotmove) actions to apply transitionally to ebuilds

[Michał Górny]

Dnia 2015-04-04, o godz. 21:36:37
Ulrich Mueller <ulm@g.o> napisał(a):

> >>>>> On Sat, 4 Apr 2015, Michał Górny wrote:
>
> >> This is not true for slotmoves. The previous slot can be reused by
> >> versions not matching the dependency spec of the move. One can even
> >> move some versions to a new slot, while leaving others in the old
> >> one.
> >>
> >> For example, you could have app-misc/foo-1:0 and app-misc/foo-2:0
> >> and then do the following slotmove:
> >>
> >> slotmove =app-misc/foo-2* 0 2
> >>
> >> How would your transparent conversion treat >=app-misc/foo-1:0 in a
> >> dependency?
>
> > As far as I'm concerned, this is a hack and as such it doesn't have to
> > cover all the possible cases.
>
> But in the worst case, your "hack" can cause a broken dependency
> graph. On the one hand, above mentioned >=app-misc/foo-1:0 matches
> all versions affected by the slotmove, so it should be converted.
> On the other hand, it is a perfectly valid dependency specification
> which could have been added after the slotmove, in which case it
> shouldn't be converted. You cannot know here what the intentions of
> the developer are.

But it *will* be converted in vdb the next time updates are applied.

-- 
Best regards,
Michał Górny