Add whitelist support to repack.

grit/format/repack.py

Index: grit/format/repack.py
diff --git a/grit/format/repack.py b/grit/format/repack.py
index e42acdbfc57e6b65915ba1180935994776a6064e..337b7af20b5af3c53c465bcf07dc82385b388d2d 100755
--- a/grit/format/repack.py
+++ b/grit/format/repack.py
@@ -9,19 +9,29 @@ http://dev.chromium.org/developers/design-documents/linuxresourcesandlocalizedst
 for details about the file format.
 """
 
+import optparse
 import os
 import sys
+
 if __name__ == '__main__':
   sys.path.append(os.path.join(os.path.dirname(__file__), '../..'))
 
 import grit.format.data_pack
 
+
 def main(argv):
-  if len(argv) < 3:
-    print ("Usage:\n  %s <output_filename> <input_file1> [input_file2] ... " %
-           argv[0])
-    sys.exit(-1)
-  grit.format.data_pack.RePack(argv[1], argv[2:])
+  parser = optparse.OptionParser('usage: %prog [options] <output_filename>'
+                                 '<input_file1> [input_file2] ...')
+  parser.add_option('--whitelist', action='store', dest='whitelist',
+                    default=None, help='Full path to the whitelist used to'
+                    'filter output pak file resource IDs')
+  options, file_paths = parser.parse_args(argv)
+
+  if len(file_paths) < 2:
+    parser.error('Please specify output and at least one input filenames')
+
+  grit.format.data_pack.RePack(file_paths[0], file_paths[1:],
+                               whitelist_file=options.whitelist)
 
 if '__main__' == __name__:
-  main(sys.argv)
+  main(sys.argv[1:])