Issue 1087: support dictConfig logging configuration

gunicorn/config.py

@@ -1309,6 +1309,19 @@ class LogConfig(Setting):
     """
 
 
+class LogConfigDict(Setting):
+    name = "logconfig_dict"
+    section = "Logging"
+    validator = validate_dict
+    default = {}
+    desc = """\
+    The log config dictionary to use, using the standard Python logging
+    module's dictConfig format.
+    If specified, this takes precedence over logconfig, which uses the older
+    fileConfig format.
+    """
+
+
 class SyslogTo(Setting):
     name = "syslog_addr"
     section = "Logging"

gunicorn/glogging.py

@@ -8,7 +8,7 @@ import binascii
 import time
 import logging
 logging.Logger.manager.emittedNoHandlerWarning = 1
-from logging.config import fileConfig
+from logging.config import fileConfig, dictConfig
 import os
 import socket
 import sys
@@ -226,7 +226,11 @@ class Logger(object):
                     self.access_log, cfg, self.syslog_fmt, "access"
                 )
 
-        if cfg.logconfig:
+        if cfg.logconfig_dict:
+            config = CONFIG_DEFAULTS.copy()
+            config.update(cfg.logconfig_dict)
+            dictConfig(config)
+        elif cfg.logconfig:
             if os.path.exists(cfg.logconfig):
                 defaults = CONFIG_DEFAULTS.copy()
                 defaults['__file__'] = cfg.logconfig