rar extraction (was: Thinking about SRU)

[Ma Xiaojun]

Oops, you mean unar from The Unarchiver project?
http://code.google.com/p/theunarchiver/

It's a decent tool and I'm considering MIR request.

However, File Roller cannot automatically pull it since related code
returns "unarchiver" package, rather than "unar" package.
http://bazaar.launchpad.net/~ubuntu-branches/ubuntu/quantal/file-roller/quantal/view/head:/src/fr-command-unarchiver.c#L267

In addition, it seems that File Roller prefers tools that can both
read and write and so "rar, unrar" would still be File Roller's choice
on Ubuntu.