A snag in my Grails Script

Yesterday, I blogged about doing a build/deployment from a standalone Groovy script. However, I discovered what I think is a bug in GrailsScriptRunner that prevents System properties from being passed in from external script runners (such as the GrailsTask Ant task or even from Gradle). This kinda sucks, so I'm investigating a couple of possible workarounds, or patching GrailsScriptRunner to fix the problem.