Rails code quality tools that I can run in development mode without sharing my code

Question

I came across https://codeclimate.com. Super awesome, but I'm working on a project whose code I cannot share with others or Code Climate.

Now I would like to be able to improve my code quality and wonder if anyone can suggest tools that do what codeclimate.com does but locally in development mode, without me having to share my code.

Answer 1

The metric_fu gem seems to be the best option combining all known test tools into 1 an generate a neat report although its not as nice and fully featured as code climate.com