Setup environment for debug logstash plugins

Debug_logstash_plugins.md

Debugging Logstash Plugins

Login shell, for rvm to work properly

/bin/bash --login

use JRuby

rvm use jruby

Set JRUBY_OPTS for nailgun server

declare -x JRUBY_OPTS="-J-XX:+TieredCompilation -J-XX:TieredStopAtLevel=1 -J-noverify"

Start nailgun derver

jruby --ng-server

Set JRUBY_OPTS for nailgun client

declare -x JRUBY_OPTS="--dev --ng"

Run tests

rspec spec/filters/mutate_spec.rb