Ruby source code analyzer (something like pylint)

Question

Does Ruby have any tools along the lines of pylint for analyzing source code for errors and simple coding standards?

It would be nice if it could be integrated with

Answer 1

One recently-updated interesting-looking tool is Ruby Object Oriented Design Inferometer - roodi for short. It's at v1.3.0, so I'm guessing it's fairly mature.

I haven't tried it myself, because my code is of course already beyond reproach (hah).

As for test coverage (oh dear, I haven't tried this one either) there's rcov

Also (look, I am definitely going to try some of these today. One at least) you might care to take a look at flog and flay for another style checker and a refactoring candidate finder.