I don't quite follow, this creates a cljs.core "analysis cache". I don't know what an analysis cache, but I guess it is something that's needed to compile ClojureScript code?

Has no one distributed such a cache in a way that it's easier to do a compile without Java installed? Is there not anything as simple as (where cljs-compile is a Node script):

  cljs-compile file.cljs > out.js

yet?