# HG changeset patch
# User Matt Mackall <mpm@selenic.com>
# Date 1282234442 18000
# Node ID 2db0fccc81438a18329d4a1da0a694d2f8eae378
# Parent  27649cf258e3a13ae994350f400d6eb2792317a8
ui: add logging hook

diff -r 27649cf258e3 -r 2db0fccc8143 mercurial/ui.py
--- a/mercurial/ui.py	Wed Aug 18 06:05:09 2010 +0530
+++ b/mercurial/ui.py	Thu Aug 19 11:14:02 2010 -0500
@@ -593,6 +593,15 @@
         else:
             self.debug('%s:%s %s%s\n' % (topic, item, pos, unit))
 
+    def log(self, service, message):
+        '''hook for logging facility extensions
+
+        service should be a readily-identifiable subsystem, which will
+        allow filtering.
+        message should be a newline-terminated string to log.
+        '''
+        pass
+
     def label(self, msg, label):
         '''style msg based on supplied label