bitbake: command: Trigger updateCache to shut down any active parser threads

If we trigger a shutdown whilst parsing for whatever reason, in some
cases we were not closing down the parser threads. This change
ensures we do so. The function names are not entirely intuitive
but the behaviour is more correct (and commented). The previous bug
with the stdout failure would trigger this one, if there was a cold
cache and parsing was required (but not otherwise).

(Bitbake rev: 25bfa2478f1c3a8eb695e1e5760e06db5be8f2fc)

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

bitbake/lib/bb/command.py

@@ -87,6 +87,9 @@ class Command:
     def runAsyncCommand(self):
         try:
             if self.cooker.state in (bb.cooker.state.error, bb.cooker.state.shutdown, bb.cooker.state.forceshutdown):
+                # updateCache will trigger a shutdown of the parser
+                # and then raise BBHandledException triggering an exit
+                self.cooker.updateCache()
                 return False
             if self.currentAsyncCommand is not None:
                 (command, options) = self.currentAsyncCommand