From 4a3c17eab42c0ece7e5abf882e96c7f271d30bbb Mon Sep 17 00:00:00 2001
From: "szager@chromium.org"
 <szager@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>
Date: Fri, 24 May 2013 23:59:29 +0000
Subject: [PATCH] Add job prefix to error messages.

BUG=235289
R=maruel@chromium.org

Review URL: https://codereview.chromium.org/15792004

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@202236 0039d316-1c4b-4281-b951-d872f2087c98
---
 gclient_utils.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/gclient_utils.py b/gclient_utils.py
index 54d4e0ecf..d86f23c1d 100644
--- a/gclient_utils.py
+++ b/gclient_utils.py
@@ -22,8 +22,11 @@ import subprocess2
 
 class Error(Exception):
   """gclient exception class."""
-  pass
-
+  def __init__(self, msg, *args, **kwargs):
+    index = getattr(threading.currentThread(), 'index', 0)
+    if index:
+      msg = '\n'.join('%d> %s' % (index, l) for l in msg.splitlines())
+    super(Error, self).__init__(msg, *args, **kwargs)
 
 def SplitUrlRevision(url):
   """Splits url and returns a two-tuple: url, rev"""