Puppet

If the portage provider tries to search of a package that does not exist, errors out and fails with the following error:

err: //rrdtool::python/Package[rrdtool-python]: Failed to retrieve current state of resource: Execution of '/usr/bin/eix --nocolor --pure-packages --stable --format <category> <name> [<installedversions:LASTVERSION>] [<bestversion:LASTVERSION>] <homepage> <description>
--exact --name rrdtool-python' returned 1: 

Eix will return 1 if it finds no packages by default. You can change the value eix returns by editing /etc/eixrc and add:

NOFOUND_STATUS=0

When you do that and try running it again, you get a more useful error message:

err: //rrdtool::python/Package[rrdtool-python]: Failed to retrieve current state of resource: No package found with the specified name [<unspecified category>/rrdtool-python]

However, this brings in a whole new problem related to issue #3000. The real fix should deal with exit status in a saner manner possibly similar to how the dpkg provider works.