[pacman-dev] [PATCH] Add new SharedPkgCache option.

[Xavier]

On Sun, Feb 17, 2008 at 05:37:13PM +0200, Roman Kyrylych wrote:
> 2008/2/16, Chantry Xavier <shiningxc at gmail.com>:
> > As it was already mentioned several times, the new -Sc behavior in 3.1 is
> > great, but only when the package cache is not shared.
> >
> > When this option is enabled, -Sc will clean packages that are no longer
> > available in any sync db, rather than packages that are no longer in the
> > local db. The resulting behavior should be better for shared cache.
> >
> 
> Great name! :-)
> 
> BTW, I've just realized that there might be a problem with "no longer
> in any sync db" that, I think was not in 3.0's -Sc:
> if SystemA has core,extra,community enabled and SystemB only
> core&extra then doing -Sc on SystemB will cleanup community packages
> from the shared cache.
> I don't know if it's worth to fix this by using a more complicated
> (filename comparison, AFAIR) aproach like in 3.0. :-/
> 

Indeed, that's a problem, but don't know if it's a big one. I would think
it's rather common to use the same set of sync db on a set of machines
sharing pkg cache. And that approach is indeed much simpler.

I mentioned this in the man page, that this option is rather meant for setup
where same sync dbs are used.