Do something sensible if we get an IOError while logging an exception.

git-svn-id: http://svn.savannah.nongnu.org/svn/rdiff-backup@818 2b77aa54-bcbc-44c9-a7ec-4f6cf2b41109

trunk/rdiff-backup/CHANGELOG

 New in v1.1.12 (????/??/??)
 ---------------------------
 
+Do something sensible if we get an IOError while trying to appropriately
+log another exception. (Andrew Ferguson)
+
 Handle exception when get permission denied on a file while trying
 to establish case sensitivity on read-only side. (Andrew Ferguson)
 

trunk/rdiff-backup/rdiff_backup/log.py

@@ -186,7 +186,12 @@ class Logger:
 			logging_func = self.log_to_term
 			if verbosity >= self.term_verbosity: return
 
-		logging_func(self.exception_to_string(), verbosity)
+		exception_string = self.exception_to_string()
+		try:
+			logging_func(exception_string, verbosity)
+		except IOError:
+			print "IOError while trying to log exception!"
+			print exception_string
 
 
 Log = Logger()