title: Ruby source code analyzer (something like pylint)
body: <p>Does Ruby have any tools along the lines of <a href="http://pypi.python.org/pypi/pylint" rel="noreferrer">pylint</a> for analyzing source code for errors and simple coding standards?</p>
  
  <p>It would be nice if it could be integrated with <a href="http://cruisecontrolrb.thoughtworks.com/" rel="noreferrer">cruisecontrolrb</a> for continuous integration.</p>
  
  <p>Or does everyone write such good tests that they don't need source code checkers!</p>