[pacman-dev] Db pkgcache invalidation

[Fabien Bourigault]

I'm the current maintainer of PackageKit alpm backend and I need to
invalidate localdb pkgcache when user run pacman by hand and packagekitd is
running. I already added an inotify watch on the localdb directory but now
I need to refresh the backend libalpm state.

Is there any existing way to achieve this ? If not, is the behavior I need
could be achieved by unsetting the DB_STATUS_PKGCACHE ?