Auto-collect app/ instead of only app/core/

Angular code for openstack_dashboard is almost finished
migrating to openstack_dashboard/static/app/.

Previously, the root module of app (app.module.js) was explicitly
included from _conf.html so that environment variables from Django
could be captured in the 'horizon.app.conf' constant.

This prevented auto-collection at the static/app/ level because
app.module.js will be included twice (once from _conf.html, and
again during auto-collection)

It turns out that 'horizon.app.conf' is unnecessary as an Angular
constant. It's only use is to initialize the 'horizon.conf' global
provided by horizon.js.

This patch refactors _conf.html to directly initialize horizon.conf.
This removes the need for app.module.js to be included from
_conf.html, which allows us to change the auto-collection directory
to 'app/'.

Now all files in horizon/static and openstack_dashboard/static/app
are auto-collected, without including app.module.js twice. All new
angular files are expected to live in one of these two locations,
minimizing changes to static_settings.py to include new files for
auto-collection

Change-Id: I95b6f13c85eb08c875885812a7db054a5aa6e7c2
Partial-Bug: #1458697
Closes-Bug: #1477825

horizon/static/horizon/js/horizon.js

@@ -38,6 +38,11 @@ var Horizon = function () {
       .replace(/\//g, '/');
   };
 
+  /* Storage for backend configuration variables which the frontend
+   * should be aware of.
+   */
+  horizon.conf = {};
+
   return horizon;
 };
 

openstack_dashboard/static/app/app.module.js

@@ -59,20 +59,11 @@
       .concat(horizonPlugInModules)
     )
 
-    .constant('horizon.app.conf', {
-      // Placeholders; updated by Django.
-      static_url: null,
-      ajax: {
-        queue_limit: null
-      }
-    })
-
     .run(updateHorizon);
 
   updateHorizon.$inject = [
     'gettextCatalog',
     'horizon.framework.conf.spinner_options',
-    'horizon.app.conf',
     'horizon.framework.util.tech-debt.helper-functions',
     '$cookieStore',
     '$http',
@@ -82,7 +73,6 @@
   function updateHorizon(
     gettextCatalog,
     spinnerOptions,
-    hzConfig,
     hzUtils,
     $cookieStore,
     $http,
@@ -93,9 +83,7 @@
     //expose the configuration for horizon legacy variable
     horizon.utils = hzUtils;
 
-    horizon.conf = angular.extend({
-      spinner_options: spinnerOptions
-    }, hzConfig);
+    horizon.conf.spinner_options = spinnerOptions;
 
     horizon.cookies = angular.extend({}, $cookieStore, {
       put: put,

openstack_dashboard/static_settings.py

@@ -153,5 +153,5 @@ def find_static_files(ROOT_PATH, HORIZON_CONFIG):
     file_discovery.populate_horizon_config(
         HORIZON_CONFIG,
         os.path.join(ROOT_PATH, 'static/'),
-        sub_path='app/core/'
+        sub_path='app/'
     )

openstack_dashboard/templates/horizon/_conf.html

@@ -13,36 +13,32 @@
 {% endcompress %}
 
 <script type='text/javascript' charset='utf-8'>
+  (function (global) {
+    'use strict';
+
     // make translation info available on client
     horizon.languageCode = '{{ LANGUAGE_CODE }}';
     horizon.languageBidi = '{{ LANGUAGE_BIDI }}';
     horizon.datepickerLocale = '{{ DATEPICKER_LOCALE }}';
 
     /* Load angular modules extensions list before we include angular/horizon.js */
-    var horizonPlugInModules = {{ HORIZON_CONFIG.angular_modules|default:"[]"|safe }};
-</script>
+    global.horizonPlugInModules = {{ HORIZON_CONFIG.angular_modules|default:"[]"|safe }};
 
-{% compress js %}
-<script src="{{ STATIC_URL }}app/app.module.js"></script>
-{% endcompress %}
-
-<script type='text/javascript' charset='utf-8'>
-/* Storage for backend configuration variables which the frontend
- * should be aware of.
- */
-
-angular.module('horizon.app')
-  .config(['horizon.app.conf', function (hzConfig) {
-    hzConfig.static_url = "{{ STATIC_URL }}";
-    hzConfig.ajax = {
+    /* Storage for backend configuration variables which the frontend
+     * should be aware of.
+     */
+    var conf = horizon.conf;
+    conf.static_url = "{{ STATIC_URL }}";
+    conf.ajax = {
       queue_limit: {{ HORIZON_CONFIG.ajax_queue_limit|default:"null" }}
     };
-    hzConfig.auto_fade_alerts = {
+    conf.auto_fade_alerts = {
       delay: {{ HORIZON_CONFIG.auto_fade_alerts.delay|default:"3000" }},
       fade_duration: {{ HORIZON_CONFIG.auto_fade_alerts.fade_duration|default:"1500" }},
       types: {{ HORIZON_CONFIG.auto_fade_alerts.types|default:"[]"|safe }}
     };
-    hzConfig.disable_password_reveal = {{ HORIZON_CONFIG.disable_password_reveal|yesno:"true,false" }};
-}]);
+    conf.disable_password_reveal =
+      {{ HORIZON_CONFIG.disable_password_reveal|yesno:"true,false" }};
 
+  })(this);
 </script>