Re: [gentoo-dev] don't rely on dynamic deps

[Rich Freeman]

On Sun, Jul 27, 2014 at 4:24 PM, Michał Górny <mgorny@g.o> wrote:
> Dnia 2014-07-27, o godz. 10:42:19
>
> Consider the following:
>
> 1. A depends on B, both are installed,
>
> 2. dependency on B is removed, emerge --depclean uninstalls B thanks
> to dynamic-deps,
>
> 3. B is treecleaned (nothing depends on it),
>
> 4. old version of A is removed (user doesn't update it yet), therefore
> dependency on B is restored from vdb.
>
> So, now user has package A installed which has unsatisfied dependency
> on non-available package.

I'd think that portage should update vdb as soon as it detects the
dependency change.  Then B would no longer depend on A in vdb.  It
shouldn't hold onto outdated information.  Basically a dependency
change should trigger a no-rebuild merge if it is safe to do so, and
if not there should be a revbump anyway.

If A is removed before there is a sync, then A is still installed on
the user's system and portage still thinks that B depends on A, so it
remains consistent.

I acknowldege that this isn't how portage behaves today.

Rich