Fix gsutil execution on Windows.

win_toolchain/toolchain2013.py

 #!/usr/bin/env python
 # Copyright 2013 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.
 
 """Extracts a Windows VS2013 toolchain from various downloadable pieces."""
 
 
 import ctypes
 import json
@@ skipping 132 matching lines @@
 def ExtractIso(iso_path):
   """Uses 7zip to extract the contents of the given .iso (or self-extracting
   .exe).
   """
   target_path = TempDir()
   sys.stdout.write('Extracting %s...\n' % iso_path)
   sys.stdout.flush()
   # TODO(scottmg): Do this (and exe) manually with python code.
   # Note that at the beginning of main() we set the working directory to 7z's
   # location so that 7z can find its codec dll.
-  RunOrDie('7z x "%s" -y "-o%s" >nul' % (iso_path, target_path))
+  RunOrDie('7z x "%s" -y "-o%s"' % (iso_path, target_path))
   return target_path
 
 
 def ExtractMsi(msi_path):
   """Uses msiexec to extract the contents of the given .msi file."""
   sys.stdout.write('Extracting %s...\n' % msi_path)
   with ScopedSubstTempDir() as temp_dir:
     RunOrDie('msiexec /a "%s" /qn TARGETDIR="%s"' % (
                msi_path, temp_dir.ShortenedPath()))
     return temp_dir.RealPath()
@@ skipping 260 matching lines @@
                '%~dp0..\\..\\VC\\atlmfc\\lib\\amd64\n')
 
 
 def DoTreeMirror(target_dir, tree_sha1):
   """In order to save temporary space on bots that do not have enough space to
   download ISOs, unpack them, and copy to the target location, the whole tree
   is uploaded as a zip to internal storage, and then mirrored here."""
   local_zip = DownloadUsingGsutil(tree_sha1 + '.zip')
   sys.stdout.write('Extracting %s...\n' % local_zip)
   sys.stdout.flush()
-  RunOrDie('7z x "%s" -y "-o%s" >nul' % (local_zip, target_dir))
+  RunOrDie('7z x "%s" -y "-o%s"' % (local_zip, target_dir))
 
 
 def main():
   parser = optparse.OptionParser(description=sys.modules[__name__].__doc__)
   parser.add_option('--targetdir', metavar='DIR',
                     help='put toolchain into DIR',
                     default=os.path.join(BASEDIR, 'win_toolchain_2013'))
   parser.add_option('--noclean', action='store_false', dest='clean',
                     help='do not remove temp files',
                     default=True)
@@ skipping 40 matching lines @@
     }
     with open(os.path.join(target_dir, '..', 'data.json'), 'w') as f:
       json.dump(data, f)
   finally:
     if options.clean:
       DeleteAllTempDirs()
 
 
 if __name__ == '__main__':
   sys.exit(main())