wycats/rake-pipeline-web-filters — pull request #20 by ryanto (2012-02-23 00:00:23+00:00)
Title: Allow handlebars filter to take an option(proc) that sets the template key name

Before the Ember.TEMPLATES key was the basename of the file. This allows the user to pass a proc with options that lets them generate a new key. The proc takes an input argument. Let me know if you need more tests (I noticed the options were not tested, so I only added one quick test)