Lazily load registry utils.

lib/utils/registry.js

@@ -1,9 +1,16 @@
 
 // utilities for working with the js-registry site.
 
-exports.publish = require("./registry/publish")
-exports.unpublish = require("./registry/unpublish")
-exports.tag = require("./registry/tag")
-exports.adduser = require("./registry/adduser")
-exports.get = require("./registry/get")
-exports.request = require("./registry/request")
+var cached = {}
+function lazyGet (p) { return function () {
+  return cached[p] || (cached[p] = require("./registry/"+p))
+}}
+
+function setLazyGet (p) {
+  Object.defineProperty(exports, p,
+    { get : lazyGet(p)
+    , enumerable : true })
+}
+
+; ["publsh", "unpublish", "tag", "adduser", "get", "request"]
+  .forEach(setLazyGet)