[Swarming] Speed up test262 upload/download.

test/test262/list.py

Index: test/test262/list.py
diff --git a/test/test262/list.py b/test/test262/list.py
new file mode 100755
index 0000000000000000000000000000000000000000..69ca62cf200c6f51c4f15ce0dda4b35355fafcba
--- /dev/null
+++ b/test/test262/list.py
@@ -0,0 +1,15 @@
+#!/usr/bin/env python
+# Copyright 2016 the V8 project 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 tarfile
+
+os.chdir(os.path.dirname(os.path.abspath(__file__)))
+
+for root, dirs, files in os.walk("data"):
+  dirs[:] = [d for d in dirs if not d.endswith('.git')]
+  for name in files:
+    # These names are for gyp, which expects slashes on all platforms.
+    print('/'.join(root.split(os.sep) + [name]))