How to update already generated gulp files

[xak2000]

If I already generated project with older version of generator-ng-poly and then update generator itself then my gulp/*.js files in project are still older version. How to update them? Now i have to create new project and then compare generated gulp files with existent and manually add changes. Maybe there are some simpler approach?

[dustinspecker]

Currently, that's the only approach or looking through generator-ng-poly commits for the diffs.

It would be great to have a project file subgenerator that could generate the updated project files, display the diff, and allow the user to accept/reject file (or line, ideally) changes.