Gets mandoline working on android

mojo/tools/generate_mojo_shell_assets_list.py

Index: mojo/tools/generate_mojo_shell_assets_list.py
diff --git a/mojo/tools/generate_mojo_shell_assets_list.py b/mojo/tools/generate_mojo_shell_assets_list.py
new file mode 100755
index 0000000000000000000000000000000000000000..1a55af43e6f3f1bced184706bda9830983d35689
--- /dev/null
+++ b/mojo/tools/generate_mojo_shell_assets_list.py
@@ -0,0 +1,46 @@
+#!/usr/bin/env python
+#
+# Copyright 2015 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.
+
+"""Generates the assets_list file from a directory."""
+
+import argparse
+import os
+import sys
+
+def main():
+  parser = argparse.ArgumentParser(usage="--dir <directory>")
+
+  parser.add_argument('--dir', help='Directory read files from.', required=True)
+
+  options, _ = parser.parse_known_args()
+
+  if not os.path.exists(options.dir) or not os.path.isdir(options.dir):
+    print 'Directory does not exist, or path is not a directory', options.dir
+    return -1
+
+  root_dir = os.path.abspath(options.dir)
+  all_files = []
+  for current_root, _, files in os.walk(options.dir):
+    current_root_absolute = os.path.abspath(current_root)
+    if len(current_root_absolute) < len(root_dir):
+      print 'unexpected directory', current_root_absolute
+      return -1
+    rel_root = current_root_absolute[len(root_dir):]
+    if len(rel_root) and rel_root.startswith(os.sep):
+      rel_root = rel_root[len(os.sep):]
+    if len(rel_root) and not rel_root.endswith(os.sep):
+      rel_root += os.sep
+    all_files.extend([rel_root + f for f in files])
+
+  with open(os.path.join(options.dir, 'assets_list'), 'w') as f:
+    for a_file in all_files:
+      f.write(a_file + '\n')
+
+  return 0
+
+if __name__ == '__main__':
+  sys.exit(main())
+