[pacman-dev] [PATCH] Restore .pacsave file if present

[Xavier]

Allan McRae wrote:
> This patch adds the ability to restore file "foo.pacsave" when installing 
> file "foo". File "foo" is then installed as "foo.pacnew"
> 
> I really need help with this one.  I am a bit wary of this code given
> it is in one of the most essential parts of pacman.  Despite the new 
> pactest failure, I actually had the balls to test this  out on my 
> production system... Using the abs package and the /etc/abs.conf.pacsave 
> file is restored and /etc/abs.conf.pacnew is created as expected.
> 

This feature looks nice, but the problem is that the whole backup 
handling code is really messy, with non obvious interactions in 
conflict.c, remove.c and add.c and ugly hacks.
I probably even made the code worse when trying to do quick fixes for 
3.1 releases.
And no work has been done for cleaning that since then.