[packagekit] yum backend returning both installed and available

[Richard Hughes]

I'm not sure how to solve this:

[hughsie at hughsie-laptop PackageKit]$ pkcon search name evince
  evince               2.20.0-2.fc8    i386    installed Document viewer
  evince               2.20.0-2.fc8    i386    development Document viewer
  evince-debuginfo     2.20.0-2.fc8    i386    development-debuginfo Debug information for package evince
Runtime was 3 seconds

We shouldn't show the evince package in development if we have a locally
installed package of that name with the same version - it's not like we
can install the second evince as it _is_ the first package.

I could filter this in the server, but that means making the method
synchronous, which isn't really an option.

Could the yum backend perhaps keep a list of the package_id's (without
the data) and check the list before emitting a new package? This should
be done for each iteration, rather than at the end to keep the method
call from blocking without results.

Does this make sense? It's been a long day so apologies if this could be
clearer...

Thanks guys,

Richard.