- Make sure the tar file for Observatory resources only contains

runtime/tools/create_archive.py

 # Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 #
 # This python script creates a tar archive and a C++ source file which contains
 # the tar archive as an array of bytes.
 
 import os
 import sys
 from os.path import join, splitext
 import time
 from optparse import OptionParser
 from datetime import date
 import tarfile
 import tempfile
 
 def makeArchive(tar_path, client_root, files):
   tar = tarfile.open(tar_path, mode='w')
   for input_file_name in files:
     # Chop off client_root.
     archive_file_name = input_file_name[ len(client_root) : ]
+    # Replace back slash with forward slash. So we do not have Windows paths.
+    archive_file_name = archive_file_name.replace("\\", "/")
     # Open input file and add it to the archive.
     with open(input_file_name, 'rb') as input_file:
       tarInfo = tarfile.TarInfo(name=archive_file_name)
       input_file.seek(0,2)
       tarInfo.size = input_file.tell()
       input_file.seek(0)
       tar.addfile(tarInfo, fileobj=input_file)
   tar.close()
 
 def writeCCFile(output_file,
@@ skipping 110 matching lines @@
     return 0
 
   except Exception, inst:
     sys.stderr.write('create_resources.py exception\n')
     sys.stderr.write(str(inst))
     sys.stderr.write('\n')
     return -1
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv))