This is quick https://github.com/m4i/rubocop-git port to Reek.

Reek::Git

Reek for git diff.

Installation

Add this line to your application's Gemfile:

gem 'reek-git', github: 'necolt/reek-git'

And then execute:

$ bundle

Usage

Usage: reek-git [options] [[commit] commit]
    -r, --require FILE               Require Ruby file
        --cached                     git diff --cached
        --staged                     synonym of --cached

Contributing

1. Fork it ( https://github.com/necolt/reek-git/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request