Syntax checker for policy_templates.json

ceee/PRESUBMIT.py

Index: ceee/PRESUBMIT.py
diff --git a/ceee/PRESUBMIT.py b/ceee/PRESUBMIT.py
index 17aeddac36f7bde498d8141b0145d5fa6858df0a..47a2ff1befe2fd4fa6e0e07a56653084f1a4e42b 100644
--- a/ceee/PRESUBMIT.py
+++ b/ceee/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
 
 
@@ -10,11 +9,14 @@ 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)
+  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)
+  finally:
+    sys.path = old_sys_path
 
 
 def CheckChangeOnUpload(input_api, output_api):