stefanpenner/ember-cli — pull request #2411 by brittanystoroz (2014-10-30 02:00:37+00:00)
Title: Add preBuild hook for addons (Resolves #2410)

This creates a preBuild hook for add-ons, based on the work that was done for creating a postBuild hook. #1215

As noted in #2410, an example use case for this feature might be when there are file checks or manipulations you need to make prior to the build process.