Added separate checkout and config file generation to bisect script

build/util/run-bisect-perf-regression.py

Index: build/util/run-bisect-perf-regression.py
diff --git a/build/util/run-bisect-perf-regression.py b/build/util/run-bisect-perf-regression.py
new file mode 100755
index 0000000000000000000000000000000000000000..8287bba6b05d128f7ff7a54dbf7b52b14e2c2f50
--- /dev/null
+++ b/build/util/run-bisect-perf-regression.py
@@ -0,0 +1,50 @@
+#!/usr/bin/env python
+# Copyright (c) 2013 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Run Performance Test Bisect Tool
+
+This script is used by a trybot to run the src/tools/bisect-perf-regression.py
+script with the parameters specified in run-bisect-perf-regression.cfg.
+
+
+"""
+
+import subprocess
+import imp
+import sys
+import os

[tonyg, 2013/02/14 01:03:43]

alphabetize please

[shatch, 2013/02/14 23:00:34]

Done.

+
+
+try:
+  cfg_file = imp.load_source('config', 'run-bisect-perf-regression.cfg')
+
+  # Change to /src
+  os.chdir('../../')

[tonyg, 2013/02/14 01:03:43]

os.chdir(os.path.join('..', '..'))

[shatch, 2013/02/14 23:00:34]

Done.

+
+  cmd = ['./tools/bisect-perf-regression.py',

[tonyg, 2013/02/14 01:03:43]

Don't you need to pass --output_buildbot_annotations?

[tonyg, 2013/02/14 01:03:43]

Please use os.path.join for the path to the bisect script.

[shatch, 2013/02/14 23:00:34]

Done.

[shatch, 2013/02/14 23:00:34]

Done.

+         '-c', cfg_file.config['command'],
+         '-g', cfg_file.config['good_revision'],
+         '-b', cfg_file.config['bad_revision'],
+         '-m', cfg_file.config['metric']]
+  return_code = subprocess.call(cmd)
+
+  if return_code:
+    print 'Error: bisect-perf-regression.py returned with error %d' %\
+      return_code
+    print
+    sys.exit(1)
+except KeyError:
+  print 'Error: Malformed config file.'
+  print
+  sys.exit(1)
+except TypeError:
+  print 'Error: Could not load config parameters.'
+  print
+  sys.exit(1)
+except IOError:
+  print 'Error: Could not load config file.'
+  print
+  sys.exit(1)
+