[PATCH] bin/bitbake: Improve exception handling

[Richard Purdie <richard.purdie@linuxfoundation.org>]

Due to the internal event processing, this excepting handler usually raises an
Empty error, masking the underlying failure. Ensure the original exception is
raised.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
---
diff --git a/bitbake/bin/bitbake b/bitbake/bin/bitbake
index 519ecd9..7087d2d 100755
--- a/bitbake/bin/bitbake
+++ b/bitbake/bin/bitbake
@@ -242,7 +242,8 @@ def main():
 
         server.addcooker(cooker)
         server.saveConnectionDetails()
-    except:
+    except Exception as e:
+        exc_info = sys.exc_info()
         while True:
             try:
                 import queue
@@ -254,7 +255,7 @@ def main():
                 break
             if isinstance(event, logging.LogRecord):
                 logger.handle(event)
-        raise
+        raise exc_info[1], None, exc_info[2]
     server.detach()
 
     # Should no longer need to ever reference cooker