Run gsutil in the cmd.exe shell on windows

dart/tools/bots/bot_utils.py

 #!/usr/bin/env python
 #
 # Copyright (c) 2012, 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.
 
 import hashlib
 import imp
 import os
 import subprocess
@@ skipping 113 matching lines @@
     assert mode in Mode.ALL_MODES
     return 'dartsdk-%s-%s-%s.zip' % (
         SYSTEM_RENAMES[system], ARCH_RENAMES[arch], mode)
 
   def dartium_variant_zipfilename(self, name, system, arch, mode):
     assert name in ['chromedriver', 'dartium', 'content_shell']
     assert mode in Mode.ALL_MODES
     return '%s-%s-%s-%s.zip' % (
         name, SYSTEM_RENAMES[system], ARCH_RENAMES[arch], mode)
 
-def run(command, env=None):
+def run(command, env=None, shell=False):
   print "Running command: ", command
+
   p = subprocess.Popen(command, stdout=subprocess.PIPE,
-                       stderr=subprocess.PIPE, env=env)
+                       stderr=subprocess.PIPE, env=env, shell=shell)
   (stdout, stderr) = p.communicate()
   if p.returncode != 0:
     print >> sys.stderr, "Failed to execute '%s'. Exit code: %s." % (
         command, p.returncode)
     print >> sys.stderr, "stdout: ", stdout
     print >> sys.stderr, "stderr: ", stderr
     raise Exception("Failed to execute %s." % command)
 
 class GSUtil(object):
   GSUTIL_IS_SHELL_SCRIPT = False
@@ skipping 29 matching lines @@
         'win32': r'e:\b\build\site_config\.boto',
       }[utils.GuessOS()]
       env['AWS_CREDENTIAL_FILE'] = boto_config
       env['BOTO_CONFIG'] = boto_config
 
     if GSUtil.GSUTIL_IS_SHELL_SCRIPT:
       gsutil_command = [GSUtil.GSUTIL_PATH]
     else:
       gsutil_command = [sys.executable, GSUtil.GSUTIL_PATH]
 
-    run(gsutil_command + gsutil_args, env=env)
+    run(gsutil_command + gsutil_args, env=env,
+        shell=GSUtil.GSUTIL_IS_SHELL_SCRIPT)
 
   def upload(self, local_path, remote_path, recursive=False, public=False):
     assert remote_path.startswith('gs://')
 
     args = ['cp']
     if public:
       args += ['-a', 'public-read']
     if recursive:
       args += ['-R']
     args += [local_path, remote_path]
@@ skipping 26 matching lines @@
   if not mangled_filename:
     mangled_filename = os.path.basename(filename)
 
   checksum = CalculateChecksum(filename)
   checksum_filename = '%s.md5sum' % filename
 
   with open(checksum_filename, 'w') as f:
     f.write('%s *%s' % (checksum, mangled_filename))
 
   return checksum_filename
-