Make get_drt.py work in Windows.

tools/get_drt.py

 #!/usr/bin/env python
 #
 # Copyright (c) 2011, 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.
 
 # Gets or updates a DumpRenderTree (a nearly headless build of chrome). This is
 # used for running browser tests of client applications.
 
 import optparse
 import os
 import platform
 import shutil
 import subprocess
 import sys
 import tempfile
+import zipfile
 
 def NormJoin(path1, path2):
   return os.path.normpath(os.path.join(path1, path2))
 
 # Change into the dart directory as we want the project to be rooted here.
 dart_src = NormJoin(os.path.dirname(sys.argv[0]), os.pardir)
 os.chdir(dart_src)
 
-GSUTIL_DIR = 'third_party/gsutil'
+GSUTIL_DIR = os.path.join('third_party', 'gsutil')
 GSUTIL = GSUTIL_DIR + '/gsutil'
 
-DRT_DIR = 'client/tests/drt'
-DRT_VERSION = DRT_DIR + '/LAST_VERSION'
+DRT_DIR = os.path.join('client', 'tests', 'drt')
+DRT_VERSION = os.path.join(DRT_DIR, 'LAST_VERSION')
 DRT_LATEST_PATTERN = (
     'gs://dartium-archive/latest/drt-%(osname)s-inc-*.zip')
 DRT_PERMANENT_PREFIX = 'gs://dartium-archive/drt-%(osname)s-inc'
 
-DARTIUM_DIR = 'client/tests/dartium'
-DARTIUM_VERSION = DARTIUM_DIR + '/LAST_VERSION'
+DARTIUM_DIR = os.path.join('client', 'tests', 'dartium')
+DARTIUM_VERSION = os.path.join(DARTIUM_DIR, 'LAST_VERSION')
 DARTIUM_LATEST_PATTERN = (
     'gs://dartium-archive/latest/dartium-%(osname)s-inc-*.zip')
 DARTIUM_PERMANENT_PREFIX = 'gs://dartium-archive/dartium-%(osname)s-inc'
 
-sys.path.append(GSUTIL_DIR + '/boto')
+sys.path.append(os.path.join(GSUTIL_DIR, 'boto'))
 import boto
 
 
 def execute_command(*cmd):
   """Execute a command in a subprocess."""
   pipe = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
   output, error = pipe.communicate()
   return pipe.returncode, output
 
 
 def execute_command_visible(*cmd):
   """Execute a command in a subprocess, but show stdout/stderr."""
   result = subprocess.call(cmd, stdout=sys.stdout, stderr=sys.stderr,
                            stdin=sys.stdin)
   if result != 0:
     raise Exception('Execution of "%s" failed' % ' '.join(cmd))
 
 
 def gsutil(*cmd):
-  return execute_command(GSUTIL, *cmd)
+  return execute_command('python', GSUTIL, *cmd)
 
 
 def gsutil_visible(*cmd):
-  execute_command_visible(GSUTIL, *cmd)
+  execute_command_visible('python', GSUTIL, *cmd)
 
 
 def has_boto_config():
   """Returns true if boto config exists."""
 
   config_paths = boto.pyami.config.BotoConfigLocations
   if 'AWS_CREDENTIAL_FILE' in os.environ:
     config_paths.append(os.environ['AWS_CREDENTIAL_FILE'])
   for config_path in config_paths:
     if os.path.exists(config_path):
@@ skipping 30 matching lines @@
     directory: target directory (recreated) to install binary
     version_file: name of file with the current version stamp
     latest_pattern: the google store url pattern pointing to the latest binary
     permanent_prefix: stable google store folder used to download versions
   """
   system = platform.system()
   if system == 'Darwin':
     osname = 'mac'
   elif system == 'Linux':
     osname = 'lucid64'
+  elif system == 'Windows':
+    osname = 'win'
   else:
     print >>sys.stderr, ('WARNING: platform "%s" does not support'
         '%s for tests') % (system, name)
     return 0
 
   ensure_config()
 
   # Query for the lastest version
   pattern = latest_pattern  % { 'osname' : osname }
   result, out = gsutil('ls', pattern)
@@ skipping 17 matching lines @@
         print name + ' is up to date.\nVersion: ' + latest
       return 0 # up to date
 
   if os.path.exists(directory):
     print 'Removing old %s tree %s' % (name, directory)
     shutil.rmtree(directory)
 
   # download the zip file to a temporary path, and unzip to the target location
   temp_dir = tempfile.mkdtemp()
   try:
-    temp_zip = temp_dir + '/drt.zip'
+    temp_zip = os.path.join(temp_dir, 'drt.zip')
+    temp_zip_url = 'file://' + temp_zip
     # It's nice to show download progress
-    gsutil_visible('cp', latest, temp_zip)
+    gsutil_visible('cp', latest, temp_zip_url)
 
-    result, out = execute_command('unzip', temp_zip, '-d', temp_dir)
-    if result != 0:
-      raise Exception('Execution of "unzip %s -d %s" failed: %s' %
-                      (temp_zip, temp_dir, str(out)))
-    unzipped_dir = temp_dir + '/' + os.path.basename(latest)[:-4] # remove .zip
+    z = zipfile.ZipFile(temp_zip)
+    z.extractall(temp_dir)
+    # remove .zip for dir name
+    unzipped_dir = os.path.join(temp_dir, os.path.basename(latest)[:-4])
+    z.close()
     shutil.move(unzipped_dir, directory)
   finally:
     shutil.rmtree(temp_dir)
 
   # create the version stamp
   v = open(version_file, 'w')
   v.write(latest)
   v.close()
 
   print 'Successfully downloaded to %s' % directory
   return 0
 
 
 def main():
   parser = optparse.OptionParser()
   parser.add_option('--dartium', dest='dartium',
                     help='Get latest Dartium', action='store_true',
                     default=False)
   args, _ = parser.parse_args()
 
   if args.dartium:
     get_latest('Dartium', DARTIUM_DIR, DARTIUM_VERSION,
                DARTIUM_LATEST_PATTERN, DARTIUM_PERMANENT_PREFIX)
   else:
     get_latest('DumpRenderTree', DRT_DIR, DRT_VERSION,
                DRT_LATEST_PATTERN, DRT_PERMANENT_PREFIX)
 
 if __name__ == '__main__':
   sys.exit(main())