[PATCH 1 of 2] httpconnection: improved logging formatting

[Augie Fackler]

# HG changeset patch
# User Augie Fackler <durin42 at gmail.com>
# Date 1305583185 18000
# Node ID 8689945a9491d807e3a7154c544166a82423efa3
# Parent  bf85c2639700e7e56c01afaf7e33e818ec922919
httpconnection: improved logging formatting

I had to use this debugging output for the first time recently when
looking for a problem, and the lack of good formatting made things
difficult.

diff --git a/mercurial/httpconnection.py b/mercurial/httpconnection.py
--- a/mercurial/httpconnection.py
+++ b/mercurial/httpconnection.py
@@ -107,6 +107,7 @@
 
 
 _configuredlogging = False
+LOGFMT = '%(levelname)s:%(name)s:%(lineno)d:%(message)s'
 # Subclass BOTH of these because otherwise urllib2 "helpfully"
 # reinserts them since it notices we don't include any subclasses of
 # them.
@@ -122,7 +123,9 @@
             _configuredlogging = True
             logger = logging.getLogger('mercurial.httpclient')
             logger.setLevel(getattr(logging, loglevel.upper()))
-            logger.addHandler(logging.StreamHandler())
+            handler = logging.StreamHandler()
+            handler.setFormatter(logging.Formatter(LOGFMT))
+            logger.addHandler(handler)
 
     def close_all(self):
         """Close and remove all connection objects being kept for reuse."""