opscode/supermarket — pull request #532 by tristanoneil (2014-07-02 12:08:15+00:00)
Title: Have Cookbook#description return nil

:fork_and_knife: There is an edge case where `latest_cookbook_version` can be `nil` because it was deleted after a Cookbook has been initialized so if description is called it's delegated to `latest_cookbook_version` which is nil and it raises an exception. This enables the `allow_nil` option to the description delegate so rather than raising an exception description will just return nil.