Validates the service names on user entry

app/views/utils.js

 /*
 This file is part of the Juju GUI, which lets users view and manage Juju
 environments within a graphical interface (https://launchpad.net/juju-gui).
 Copyright (C) 2012-2013 Canonical Ltd.
 
 This program is free software: you can redistribute it and/or modify it under
 the terms of the GNU Affero General Public License version 3, as published by
 the Free Software Foundation.
 
 This program is distributed in the hope that it will be useful, but WITHOUT
@@ skipping 826 matching lines @@
 
     @method checkForExistingService
     @param {String} serviceName of the new service to deploy.
     @return {Boolean} true if it exists, false if doesn't.
   */
   utils.checkForExistingService = function(serviceName, db) {
     var existingService = db.services.getById(serviceName);
     return (existingService) ? true : false;
   };
 
+  utils.validateServiceName = function(serviceName, db) {
+    if (!utils.checkForExistingService(serviceName, db)) {
+      // Regex re-worked from juju-core to work properly in javascript
+      // http://bazaar.launchpad.net/
+      // ~go-bot/juju-core/trunk/view/head:/names/service.go
+      var regex = /[a-z][a-z0-9]*(?:-[a-z0-9]*[a-z][a-z0-9]*)*/,
+          result = serviceName.match(regex);
+      if (Y.Lang.isArray(result) && result[0] === serviceName) {
+        return true;
+      }
+    }
+    return false;

[rharding, 2013/12/03 17:06:27]

ok, it does return true/false.

+  };
+
   utils.validate = function(values, schema) {
     var errors = {};
 
     /**
      * Translate a value into a string, translating non-values into an empty
      * string.
      *
      * @method toString
      * @param {Object} value The value to stringify.
      * @return {String} The input value translated into a string.
@@ skipping 956 matching lines @@
     'escape',
     'handlebars',
     'node',
     'view',
     'panel',
     'json-stringify',
     'gallery-markdown',
     'datatype-date-format'
   ]
 });