Days ago I published a post named "Measure your code to make it better" and there I mentioned Code Climate, a wonderful service you my use to apply some metrics to your software to check for quality of code and reduce your tech debt.
It happens that I made a mistake in this post. I said that it was a commercial service and you needed to pay for it. This is only partially true, as Kären Engelbrecht, from Code Climate, explained me today by e-mail.
Code Climate is FREE for Open Source projects. So, there’s no charge to use us for analyzing your Ruby gems. You only have to pay if you intend to use it with private repositories.