Ship JRuby ext pre-built

[headius]

Currently, interception builds a small "event hook" extension for JRuby at install time. This is unnecessary and limits deployment of JRuby.

Many people that use JRuby do not have the javac compiler present, such as in production environments. And there's no reason they need it; once compiled, JVM bytecode can be shipped anywhere with a compatible JVM and run directly. This is how JRuby works and many JRuby-based application deployments as well.

Because interception does not ship a pre-built jar for the JRuby ext, it is more difficult to deploy a JRuby "fat jar" that contains all dependencies. This is largely because you can't just fetch the gem and include it; you have to also build some of its contents.

I would recommend that interception not build the JRuby ext on install, but instead release a -java gem that has the ext pre-built. This is how all other JRuby extensions are shipped.

[ConradIrwin]

Thanks @headius. I haven't done much on this project for a while, but will add it to the TODO list (and/or appeal for anyone else watching the project to jump in and do this!)