properly unload old plugins and load new plugins

[enigma2.git] / lib / python / Components / PluginComponent.py

diff --git a/lib/python/Components/PluginComponent.py b/lib/python/Components/PluginComponent.py
index f3cd7e1e22302aee0a0fd1051db7a3d4ea54f1e8..e5ceb90d5b5a37ca272b959a417d59177d970d24 100644 (file)
--- a/lib/python/Components/PluginComponent.py
+++ b/lib/python/Components/PluginComponent.py
@@ -34,33 +34,48 @@ class PluginComponent:
                        if x == PluginDescriptor.WHERE_AUTOSTART:
                                plugin(reason=1)
        
-       def readPluginList(self, directory, modules = [], depth = 1):
+       def readPluginList(self, directory):
                """enumerates plugins"""
                
-               directories = os.listdir(directory)
+               categories = os.listdir(directory)
                
-               for x in directories:
-                       path = directory + x + "/"
-                       if os.path.isdir(path):
-                               if fileExists(path + "plugin.py"):
-                                       plugin = my_import('.'.join(["Plugins"] + modules + [x, "plugin"]))
-                                       
-                                       if not plugin.__dict__.has_key("Plugins"):
-                                               print "Plugin %s doesn't have 'Plugin'-call." % (x)
-                                               continue
-                                       
-                                       plugins = plugin.Plugins()
-                                       
-                                       # allow single entry not to be a list
-                                       if type(plugins) is not list:
-                                               plugins = [ plugins ]
-                                       
-                                       for p in plugins:
-                                               p.updateIcon(path)
-                                               self.addPlugin(p);
-                               else:
-                                       open(path + "__init__.py", "w").close()
-                                       self.readPluginList(path, modules + [x], depth - 1)
+               new_plugins = [ ]
+               
+               for c in categories:
+                       directory_category = directory + c
+                       if not os.path.isdir(directory_category):
+                               continue
+                       open(directory_category + "/__init__.py", "a").close()
+                       for x in os.listdir(directory_category):
+                               path = directory_category + "/" + x + "/"
+                               if os.path.isdir(path):
+                                       if fileExists(path + "plugin.py"):
+                                               plugin = my_import('.'.join(["Plugins", c, x, "plugin"]))
+
+                                               if not plugin.__dict__.has_key("Plugins"):
+                                                       print "Plugin %s doesn't have 'Plugin'-call." % (x)
+                                                       continue
+
+                                               plugins = plugin.Plugins()
+
+                                               # allow single entry not to be a list
+                                               if type(plugins) is not list:
+                                                       plugins = [ plugins ]
+
+                                               for p in plugins:
+                                                       p.updateIcon(path)
+                                                       new_plugins.append(p)
+               
+               # build a diff between the old list of plugins and the new one
+               # internally, the "fnc" argument will be compared with __eq__
+               plugins_added = [p for p in new_plugins if p not in self.pluginList]
+               plugins_removed = [p for p in self.pluginList if p not in new_plugins]
+               
+               for p in plugins_removed:
+                       self.removePlugin(p)
+               
+               for p in plugins_added:
+                       self.addPlugin(p)
 
        def getPlugins(self, where):
                """Get list of plugins in a specific category"""
@@ -75,6 +90,7 @@ class PluginComponent:
        
        def clearPluginList(self):
                self.pluginList = []
+               self.plugins = {}
 
        def shutdown(self):
                for p in self.pluginList[:]: