Load plugins from Serveradmin apps for Servershell

serveradmin/servershell/templates/servershell/index.html

@@ -235,4 +235,8 @@
         servershell.sync_attrlist_visibility();
     });
 </script>
+{% for plugin in servershell_plugins %}
+    {# Load commands from serveradmin apps for easy extension  #}
+    <script src="{{ STATIC_URL }}{{ plugin }}"></script>
+{% endfor %}
 {% endblock %}

serveradmin/servershell/utils.py

@@ -0,0 +1,22 @@
+from django.apps import apps
+from django.contrib.staticfiles import finders
+
+
+def servershell_plugins():
+    """Find $app.servershell.plugin.js files from Serveradmin apps
+
+    Scans all apps beginning with serveradmin_ for files that follow the pattern
+    $app.servershell.plugin.js and return them. This allows apps to add
+    commands to the Servershell.
+
+    @return:
+    """
+    js_files = list()
+    app_names = [app.name for app in apps.get_app_configs() if app.name.startswith("serveradmin_")]
+    for app_name in app_names:
+        path = f"js/{app_name}.servershell.plugin.js"
+        js_file = finders.find(path)
+        if js_file:
+            js_files.append(path)
+
+    return js_files

serveradmin/servershell/views.py

@@ -49,6 +49,7 @@
     attribute_startswith
 )
 from serveradmin.servershell.merged_query_iterator import MergedQuery
+from serveradmin.servershell.utils import servershell_plugins
 
 MAX_DISTINGUISHED_VALUES = 50
 NUM_SERVERS_DEFAULT = 25
@@ -106,6 +107,7 @@ def index(request):
         'order_by': 'hostname',
         'filters': sorted([(f.__name__, f.__doc__) for f in filter_classes]),
         'search_settings': search_settings,
+        'servershell_plugins': servershell_plugins(),
     })