One of the coolest features of Berkshelf is the
metadata source, which is similar to Bundler's
gemspec. When you define
metadata in your Berksfile, Berkshelf will install all dependencies defined in the metadata.rb file located in the cookbook (directory) you're working on.
Unfortunately, Librarian-Chef doesn't have the
metadata shortcut. But you can mimic it this way inside your Cheffile:
site "http://community.opscode.com/api/v1" cookbook "name_of_your_cookbook", :path => "."
Ultimately, this trick allows you to distribute your cookbook together with a Cheffile (which is good).