[pacman-dev] issues with cleaning a shared pacman cache with new -Sc behaviour

[Roman Kyrylych]

Hi!

I've found an issue that appeared after the change in -Sc behaviour.
It now removes "uninstalled" packages from cache which is good for
majority of users, but is bad for shared pacman cache users.
With a pacman cache shared between machines it is impossible to
correctly clean it with pacman if a set of installed packages on them
is different.
I remember there was at least one script posted here or on forums that
removes old version of packages from a specified directory
(it was provided as a helpful tool for managing local repositories
AFAIR), but I cannot find it.
Could someone who have this (or similar) script please share it?
It needs to be posted to our wiki page about a shared cache, and maybe
Phil's rucksack script needs to be modified as well.

-- 
Roman Kyrylych (Роман Кирилич)