Fix submit_try

BUG=skia:2643
R=epoger@google.com, tfarina@chromium.org

Author: borenet@google.com

Review URL: https://codereview.chromium.org/317823003
diff --git a/tools/retrieve_from_googlesource.py b/tools/retrieve_from_googlesource.py
new file mode 100644
index 0000000..2f78ce0
--- /dev/null
+++ b/tools/retrieve_from_googlesource.py
@@ -0,0 +1,37 @@
+#!/usr/bin/python
+
+# Copyright (c) 2014 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.
+
+
+"""Retrieve the given file from googlesource.com."""
+
+
+from contextlib import closing
+
+import base64
+import sys
+import urllib2
+
+
+def get(repo_url, filepath):
+  """Retrieve the contents of the given file from the given googlesource repo.
+
+  Args:
+      repo_url: string; URL of the repository from which to retrieve the file.
+      filepath: string; path of the file within the repository.
+
+  Return:
+      string; the contents of the given file.
+  """
+  base64_url = '/'.join((repo_url, '+', 'master', filepath)) + '?format=TEXT'
+  with closing(urllib2.urlopen(base64_url)) as f:
+    return base64.b64decode(f.read())
+
+
+if __name__ == '__main__':
+  if len(sys.argv) != 3:
+    print >> sys.stderr, 'Usage: %s <repo_url> <filepath>' % sys.argv[0]
+    sys.exit(1)
+  sys.stdout.write(get(sys.argv[1], sys.argv[2]))