Is it possible to use proguard with Grails

Question

Even if it is not possible to use proguard for an entire grails app would it be possible to just use it for the src/java folder?

Answer 1

I don't know either Proguard or Grails in depth, but I do know that:

1. Grails uses Groovy
2. Groovy compiles down to bytecode
3. Proguard operates on bytecode (not source code)

Thus my intuition is yes, ProGuard can shrink/obfuscate grails apps. Your question asks about using ProGuard on the src/java folder. It's important to understand that ProGuard operates on .class files, not .java files. A correct configuration will need to operate on your bin directory, not src. Unfortunately I'm not qualified to give you a detailed example configuration, but I hope this gets you on the right path.