move warning filtering into compatibility module

dbt/compat.py

@@ -1,5 +1,6 @@
 import codecs
 import json
+import warnings
 
 WHICH_PYTHON = None
 
@@ -51,3 +52,11 @@ def write_file(path, s):
  else:
  with open(path, 'w') as f:
  return f.write(to_string(s))
+
+def suppress_warnings():
+ # in python 2, ResourceWarnings don't exist.
+ # in python 3, suppress ResourceWarnings about unclosed sockets, as the
+ # bigquery library never closes them.
+ if WHICH_PYTHON == 3:
+ warnings.filterwarnings("ignore", category=ResourceWarning,
+ message="unclosed.*<socket.socket.*>")

dbt/logger.py

@@ -50,10 +50,7 @@
 # Redirect warnings through our logging setup
 # They will be logged to a file below
 logging.captureWarnings(True)
-# suppress ResourceWarnings about unclosed sockets, as the bigquery library
-# never closes them
-warnings.filterwarnings("ignore", category=ResourceWarning,
- message="unclosed.*<socket.socket.*>")
+dbt.compat.suppress_warnings()
 
 initialized = False