Thanks for sharing this plugin, folks.
Just thought I'd raise this: Maven build is ok. Though I'm hitting an error when I eventually run a sonar scan using the plugin in SonarQube..
INFO: Sensor RubySensor
Exception in thread "main" java.lang.NoSuchFieldError: PACKAGES
at com.godaddy.sonar.ruby.RubySensor.computeBaseMetrics(RubySensor.java:85)
It seems PACKAGES no longer exists in org.sonar.api.measures.CoreMetrics.