add support for logging configuration in paster ini-files

examples/log_app.ini

@@ -0,0 +1,30 @@
+[app:main]
+paste.app_factory = log_app:app_factory
+
+[server:main]
+use = egg:gunicorn#main
+host = 127.0.0.1
+port = 8080
+
+
+[loggers]
+keys=root
+
+[handlers]
+keys=console
+
+[formatters]
+keys=default
+
+[logger_root]
+level=INFO
+qualname=root
+handlers=console
+
+[handler_console]
+class=StreamHandler
+formatter=default
+args=(sys.stdout, )
+
+[formatter_default]
+format=[%(asctime)s] [%(levelname)-7s] - %(process)d:%(name)s:%(funcName)s - %(message)s

examples/log_app.py

@@ -0,0 +1,14 @@
+import logging
+
+log = logging.getLogger(__name__)
+
+def app_factory(global_options, **local_options):
+    return app
+
+def app(environ, start_response):
+    start_response("200 OK", [])
+    log.debug("Hello Debug!")
+    log.info("Hello Info!")
+    log.warn("Hello Warn!")
+    log.error("Hello Error!")
+    return ["Hello World!\n"]

gunicorn/app/pasterapp.py

@@ -6,6 +6,7 @@
 import os
 import pkg_resources
 import sys
+import ConfigParser
 
 from paste.deploy import loadapp, loadwsgi
 SERVER = loadwsgi.SERVER
@@ -26,6 +27,7 @@ class PasterApplication(Application):
 
         self.cfgurl = 'config:%s' % cfgfname
         self.relpath = os.path.dirname(cfgfname)
+        self.cfgfname = cfgfname
 
         sys.path.insert(0, self.relpath)
         pkg_resources.working_set.add_entry(self.relpath)
@@ -63,6 +65,24 @@ class PasterApplication(Application):
     def load(self):
         return loadapp(self.cfgurl, relative_to=self.relpath)
 
+    def configure_logging(self):
+        # from paste.script.command
+        parser = ConfigParser.ConfigParser()
+        parser.read([self.cfgfname])
+        if parser.has_section('loggers'):
+            if sys.version_info >= (2, 6):
+                from logging.config import fileConfig
+            else:
+                # Use our custom fileConfig -- 2.5.1's with a custom Formatter class
+                # and less strict whitespace (which were incorporated into 2.6's)
+                from paste.script.util.logging_config import fileConfig
+
+            config_file = os.path.abspath(self.cfgfname)
+            fileConfig(config_file, dict(__file__=config_file,
+                                         here=os.path.dirname(config_file)))
+        else:
+            super(PasterApplication, self).configure_logging()
+
 class PasterServerApplication(Application):
     
     def __init__(self, app, gcfg=None, host="127.0.0.1", port=None, *args, **kwargs):