bitbake: cookerdata/cooker: Restore original datastore upon client disconnect

(Bitbake rev: 67ae612ab890965357d24a9bd35610cf813b79ba)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/cooker.py

@@ -1566,6 +1566,8 @@ class BBCooker:
     def clientComplete(self):
         """Called when the client is done using the server"""
         self.finishcommand()
+        self.databuilder.reset()
+        self.data = self.databuilder.data
 
 def server_main(cooker, func, *args):
     cooker.pre_serve()

bitbake/lib/bb/cookerdata.py

@@ -328,6 +328,15 @@ class CookerDataBuilder(object):
             logger.exception("Error parsing configuration files")
             raise bb.BBHandledException
 
+        # Create a copy so we can reset at a later date when UIs disconnect
+        self.origdata = self.data
+        self.data = bb.data.createCopy(self.origdata)
+        self.mcdata[''] = self.data
+
+    def reset(self):
+        self.data = bb.data.createCopy(self.origdata)
+        self.mcdata[''] = self.data
+
     def _findLayerConf(self, data):
         return findConfigFile("bblayers.conf", data)