assets: add javascript static file route generator

rhodecode/public/js/src/rhodecode/utils/pyroutes.js

@@ -167,6 +167,14 b' var pyroutes = (function() {'
     return sprintf.apply(null, argv);
   };
   return {
+    'asset': function(path, ver) {
+      var asset_url = ASSET_URL || '/_static/';
+      var ret = asset_url + path;
+      if (ver !== undefined) {
+        ret += '?ver=' + ver;
+      }
+      return ret;
+    },
     'url': function(route_name, params) {
       var result = route_name;
       if (typeof(params) !== 'object'){

rhodecode/templates/base/root.html

@@ -56,6 +56,7 b" c.template_context['visual']['default_re"
             var REPO_TYPE = '';
             %endif
             var APPLICATION_URL = "${h.url('home').rstrip('/')}";
+            var ASSET_URL = "${h.asset('')}";
             var DEFAULT_RENDERER = "${h.get_visual_attr(c, 'default_renderer')}";
             var CSRF_TOKEN = "${getattr(c, 'csrf_token', '')}";
             % if getattr(c, 'rhodecode_user', None):