Rudder

Currently we support the zypper package manager, which uses zypper and rpm to manage packages.

To be able to handle properly the zypper patterns, we need to manage a cache of the list of installed packages.

The metapackages installed when installing a pattern do not have the same name, so the easiest way to implement patterns is:

• to add a new zypper-pattern package provider
• manage the pattern list using zypper instead of rpm

We will want to invalidate cache of the other provider when using zypper of zypper-pattern in the generic method to avoid package list mismatch.

This new provider (package module) will be based on the zypper one with a "-t pattern", plus a new parser for the list of installed patterns through zypper instead of rpm for the zypper module.

It would probably be upstreamable too.