bitbake: cooker/command: Add finishcommand to reset cooker state

After running a command on the server, it needs to reset to the initial
state. This ensures that subsequent clients start from a known state
and notice any configuration changes.

Ultimately we may want to do more than this buts a good start and better
than nothing.

(Bitbake rev: dd15648fc2654b8d7c3e00ea7ab3dbf04f24f24b)

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

bitbake/lib/bb/command.py

@@ -124,7 +124,7 @@ class Command:
         else:
             bb.event.fire(CommandCompleted(), self.cooker.event_data)
         self.currentAsyncCommand = None
-
+        self.cooker.finishcommand()
 
 class CommandsSync:
     """

bitbake/lib/bb/cooker.py

@@ -1246,6 +1246,9 @@ class BBCooker:
         else:
             self.state = state.shutdown
 
+    def finishcommand(self):
+        self.state = state.initial
+
     def initialize(self):
         self.initConfigurationData()