Only load plugins if PLUGINS_ENABLED is true

- Hide plugin settings
- Add plugin support status to "stats" dialog

InvenTree/plugin/apps.py

@@ -1,21 +1,32 @@
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
+import logging
+
 from django.apps import AppConfig
+from django.conf import settings
+
 from maintenance_mode.core import set_maintenance_mode
 
 from plugin import plugin_registry
 
 
+logger = logging.getLogger('inventree')
+
+
 class PluginAppConfig(AppConfig):
     name = 'plugin'
 
     def ready(self):
-        if not plugin_registry.is_loading:
-            # this is the first startup
-            plugin_registry.collect_plugins()
-            plugin_registry.load_plugins()
 
-            # drop out of maintenance
-            # makes sure we did not have an error in reloading and maintenance is still active
-            set_maintenance_mode(False)
+        if settings.PLUGINS_ENABLED:
+            logger.info('Loading InvenTree plugins')
+
+            if not plugin_registry.is_loading:
+                # this is the first startup
+                plugin_registry.collect_plugins()
+                plugin_registry.load_plugins()
+
+                # drop out of maintenance
+                # makes sure we did not have an error in reloading and maintenance is still active
+                set_maintenance_mode(False)

InvenTree/plugin/events.py

@@ -31,6 +31,10 @@ def trigger_event(event, *args, **kwargs):
     and the worker will respond to it later on.
     """
 
+    if not settings.PLUGINS_ENABLED:
+        # Do nothing if plugins are not enabled
+        return
+
     if not canAppAccessDatabase():
         logger.debug(f"Ignoring triggered event '{event}' - database not ready")
         return

InvenTree/plugin/registry.py

@@ -66,6 +66,10 @@ class PluginsRegistry:
         Load and activate all IntegrationPlugins
         """
 
+        if not settings.PLUGINS_ENABLED:
+            # Plugins not enabled, do nothing
+            return
+
         from plugin.helpers import log_plugin_error
 
         logger.info('Start loading plugins')
@@ -75,15 +79,16 @@ class PluginsRegistry:
         if not _maintenance:
             set_maintenance_mode(True)
 
-        registered_sucessfull = False
+        registered_successful = False
         blocked_plugin = None
         retry_counter = settings.PLUGIN_RETRY
-        while not registered_sucessfull:
+
+        while not registered_successful:
             try:
                 # We are using the db so for migrations etc we need to try this block
                 self._init_plugins(blocked_plugin)
                 self._activate_plugins()
-                registered_sucessfull = True
+                registered_successful = True
             except (OperationalError, ProgrammingError):
                 # Exception if the database has not been migrated yet
                 logger.info('Database not accessible while loading plugins')
@@ -122,6 +127,10 @@ class PluginsRegistry:
         Unload and deactivate all IntegrationPlugins
         """
 
+        if not settings.PLUGINS_ENABLED:
+            # Plugins not enabled, do nothing
+            return
+
         logger.info('Start unloading plugins')
 
         # Set maintanace mode
@@ -162,6 +171,10 @@ class PluginsRegistry:
         Collect integration plugins from all possible ways of loading
         """
 
+        if not settings.PLUGINS_ENABLED:
+            # Plugins not enabled, do nothing
+            return
+
         self.plugin_modules = []  # clear
 
         # Collect plugins from paths