fix(logging): Disable logging in generate unless set in the env

There is an incompatibility with logging and torch._dynamo, so this
disables it unless the developer asks for it explicitly.

NOTE: The TC team has stated that they have holistic logging on the roadmap
so this is a short-term solution pending a more robust approach.

REF: https://github.com/pytorch/torchchat/actions/runs/11963066986/job/33493237302#step:14:3599

Branch: GraniteCodeSupport

Signed-off-by: Gabe Goodhart <[email protected]>

Author: gabe-l-hart

torchchat/generate.py

@@ -45,7 +45,18 @@
 from torchchat.utils.device_info import get_device_info
 
 
-logger = logging.getLogger(__name__)
+# NOTE: Logging disabled by default here due to conflicts with torch._dynamo
+class NoOpLogger:
+    def __no_op(self, *_, **__):
+        pass
+    def __getattr__(self, name):
+        return self.__no_op
+
+
+logger = (
+    NoOpLogger() if os.getenv("LOG_LEVEL") is None
+    else logging.getLogger(__name__)
+)
 
 ## Chat Formatters #############################################################