Add UIlist for repositories (and make reloadable)

pkg_ops.py

@@ -57,7 +57,7 @@ class PACKAGE_OT_fetch(SubprocessOperatorMixin, bpy.types.Operator):
     last_response = None
 
     def __init__(self):
-        SubprocessOperatorMixin.__init__(self)
+        super().__init__()
         settings = bpy.context.window_manager.package_manager_settings
         self.subprocess = Process(target=blenderpack.fetch, args=(settings.url, self.pipe))
 
@@ -68,10 +68,31 @@ class PACKAGE_OT_fetch(SubprocessOperatorMixin, bpy.types.Operator):
     def execute(self, context):
         return {'FINISHED'}
 
+class PACKAGE_OT_add_repository(bpy.types.Operator):
+    bl_idname = "package.add_repository"
+    bl_label = "Add Repository"
+
+    def execute(self, context):
+        prefs = context.user_preferences.addons[__package__].preferences
+        prefs.repositories.add()
+        return {'FINISHED'}
+
+class PACKAGE_OT_remove_repository(bpy.types.Operator):
+    bl_idname = "package.remove_repository"
+    bl_label = "Remove Repository"
+
+    def execute(self, context):
+        prefs = context.user_preferences.addons[__package__].preferences
+        prefs.repositories.remove(prefs.active_repository)
+        return {'FINISHED'}
+
 
 def register():
     bpy.utils.register_class(PACKAGE_OT_fetch)
+    bpy.utils.register_class(PACKAGE_OT_add_repository)
+    bpy.utils.register_class(PACKAGE_OT_remove_repository)
 
 def unregister():
     bpy.utils.unregister_class(PACKAGE_OT_fetch)
+    bpy.utils.unregister_class(PACKAGE_OT_remove_repository)