tinfoil: Ensure we clean up loggers

This is primarily paranoid but ensure we remove any loggers we setup
either directly or indirectly so the initial state is restored after
we exit.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit af7d63b1f76fd3f7fa92ed15ae61ca47d9e13472)
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 8 insertions, 2 deletions

diff --git a/lib/bb/tinfoil.py b/lib/bb/tinfoil.py
index fb2ee4ad9..fa95f6329 100644
--- a/lib/bb/tinfoil.py
+++ b/lib/bb/tinfoil.py
@@ -322,14 +322,14 @@ class Tinfoil:
         self.server_connection = None
         self.recipes_parsed = False
         self.quiet = 0
+        self.oldhandlers = self.logger.handlers[:]
         if setup_logging:
             # This is the *client-side* logger, nothing to do with
             # logging messages from the server
-            oldhandlers = self.logger.handlers[:]
             bb.msg.logger_create('BitBake', output)
             self.localhandlers = []
             for handler in self.logger.handlers:
-                if handler not in oldhandlers:
+                if handler not in self.oldhandlers:
                     self.localhandlers.append(handler)
 
     def __enter__(self):
@@ -835,6 +835,12 @@ class Tinfoil:
             self.server_connection.terminate()
             self.server_connection = None
 
+        # Restore logging handlers to how it looked when we started
+        if self.oldhandlers:
+            for handler in self.logger.handlers:
+                if handler not in self.oldhandlers:
+                    self.logger.handlers.remove(handler)
+
     def _reconvert_type(self, obj, origtypename):
         """
         Convert an object back to the right type, in the case