If you've ever wondered whether there's a tool that will automatically compress JavaScript files when you're pushing your CouchApp somewhere, the answer is that there exists at least one: couchapp-compress.

Basically, couchapp-compress is a small Ruby script that wraps the couchapp command line tool. It compresses a CouchApp's JavaScript files and puts them altogether into one file, and temporarily changes the CouchApp so that instead of all the single uncompressed JavaScript files the compressed one is used. It pushes the CouchApp and then restores the previous state, so that again everything looks like before couchapp-compress was executed.

Check out the README for more details if you're curious and want to give it a try.