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Old 04-19-2008, 09:03 PM
Nagy Gabor
Default Fix for remove052.py by moving recursedeps before checkdeps

> >From 606d2a931da6f2d942cfc15ddc9400ecc4596a7b Mon Sep 17 00:00:00
> >2001
> From: Nagy Gabor <ngaba@bibl.u-szeged.hu>
> Date: Sat, 19 Apr 2008 22:31:22 +0200
> Subject: [PATCH] Fix for remove052.py by moving recursedeps before
> checkdeps
> Now -Rs is processed in the plausible way: first pull the
> dependencies then call checkdeps. Note: -Rs is a little bit slower
> now, because we shouldn't check the pulled deps
> In case of -Rcs we keep the old behavior because the bug cannot
> happen there and we must pull the pulled targets' deps too.
> Ref.:
> http://www.archlinux.org/pipermail/pacman-dev/2008-April/011569.html

I don't know whether we should fix the issue or not, but I've created
a patch for that.
But I must mention a little (theoretical) edge case with my patch:
pacman -Rus now can work a bit funny:
Pacman first pulls the 'dep' removable dependency of 'foo'. Then it
detects that foo cannot be removed, this is resolved by removing foo
from target list. You may think, that the next step of "unneeded check"
will also remove 'dep'. But not necessarily! Multiple satisfiers can
confuse things. So in this case -Rus does some unwanted orphan deletion.


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