initialize the logging config file with defaults.

Set correct default to the logging config file so we are able to use our
own loggers. While I'm here fix the example.

examples/logging.conf

@@ -1,5 +1,5 @@
 [loggers]
-keys=root, gunicorn_error, gunicorn_access
+keys=root, gunicon.error, gunicon.access
 
 [handlers]
 keys=console, error_file, access_file
@@ -11,16 +11,16 @@ keys=generic, access
 level=INFO
 handlers=console
 
-[logger_gunicorn_error]
+[logger_gunicon.error]
 level=INFO
 handlers=error_file
 propagate=1
 qualname=gunicorn.error
 
-[logger_gunicorn_access]
+[logger_gunicon.access]
 level=INFO
 handlers=access_file
-propagate=1
+propagate=0
 qualname=gunicorn.access
 
 [handler_console]

gunicorn/glogging.py

@@ -18,6 +18,34 @@ except ImportError:
 
 from gunicorn import util
 
+CONFIG_DEFAULTS = dict(
+        version = 1,
+        disable_existing_loggers = False,
+
+        loggers = {
+            "root": { "level": "INFO", "handlers": ["console"] },
+            "gunicorn.error": {
+                "level": "INFO",
+                "handlers": ["console"],
+                "propagate": True,
+                "qualname": "gunicorn.error"
+            }
+        },
+        handlers = {
+            "console": {
+                "class": "logging.StreamHandler",
+                "formatter": "generic",
+                "stream": "sys.stdout"
+            }
+        },
+        formatters = {
+            "generic": {
+                "format": "%(asctime)s [%(process)d] [%(levelname)s] %(message)s",
+                "datefmt": "%Y-%m-%d %H:%M:%S",
+                "class": "logging.Formatter"
+            }
+        }
+)
 
 def loggers():
     """ get list of all loggers """
@@ -126,7 +154,8 @@ class Logger(object):
                     fmt=logging.Formatter(self.access_fmt))
         else:
             if os.path.exists(cfg.logconfig):
-                fileConfig(cfg.logconfig)
+                fileConfig(cfg.logconfig, defaults=CONFIG_DEFAULTS,
+                        disable_existing_loggers=False)
             else:
                 raise RuntimeError("Error: log config '%s' not found" % cfg.logconfig)