Reek gem is a code smell detector for ruby. It examines Ruby classes, modules, methods and reports any code smells it finds.

To install this gem, use:

gem install reek


1/ Scan the current directory:

<pre>$ reek .</pre>

2/ scan specific directories like:

<pre>$ reek lib/your/files</pre>

To read more about reek gem click here(reek doc)

To find up to date details of what exactly reek will check in your code check this(reek wiki)