Syntax checker for policy_templates.json

chrome_frame/PRESUBMIT.py

Index: chrome_frame/PRESUBMIT.py
diff --git a/chrome_frame/PRESUBMIT.py b/chrome_frame/PRESUBMIT.py
index 11a7c806a772c6fbbab975d7771ed51893ed10c5..c3836b814b9a9a0cc3ce78d4d467e3aac6d6f69f 100644
--- a/chrome_frame/PRESUBMIT.py
+++ b/chrome_frame/PRESUBMIT.py
@@ -1,8 +1,7 @@
-# Copyright (c) 2010 The Chromium Authors. All rights reserved.
+# Copyright (c) 2011 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.
 
-import os
 import sys
 
 
@@ -10,12 +9,17 @@ def CheckChange(input_api, output_api, committing):
   # We need to change the path so that we can import ceee_presubmit
   # which lies at the root of the ceee folder. And we do it here so that
   # it doesn't pollute all the cases where we get imported yet not called.
-  sys.path.append(os.path.join(input_api.PresubmitLocalPath(), '../ceee'))
-  import ceee_presubmit
-  return ceee_presubmit.CheckChange(input_api,
-                                    output_api,
-                                    committing,
-                                    is_chrome_frame=True)
+  old_sys_path = sys.path
+  ceee_path = input_api.os_path.join(input_api.PresubmitLocalPath(), '../ceee')
+  try:
+    sys.path = [ceee_path] + sys.path
+    import ceee_presubmit
+    return ceee_presubmit.CheckChange(input_api,
+                                      output_api,
+                                      committing,
+                                      is_chrome_frame=True)
+  finally:
+    sys.path = old_sys_path
 
 
 def CheckChangeOnUpload(input_api, output_api):