Upload/Download dart_snapshotter

mojo/public/tools/download_dart_snapshotter.py

 #!/usr/bin/env python
 # Copyright 2014 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.
 
 import argparse
 import os
 import subprocess
 import sys
 import tempfile
 import zipfile
 
 BINARY_FOR_PLATFORM = {
-    "linux-x64" : "mojo_shell",
-    "android-arm" : "MojoShell.apk"
+    "linux-x64" : "dart_snapshotter",
 }
 
 CURRENT_PATH = os.path.dirname(os.path.realpath(__file__))
 sys.path.insert(0, os.path.join(CURRENT_PATH, "pylib"))
 import gs
 
-PREBUILT_FILE_PATH = os.path.join(CURRENT_PATH, "prebuilt", "shell")
+PREBUILT_FILE_PATH = os.path.join(CURRENT_PATH, "prebuilt", "dart_snapshotter")
 
 
 def download(tools_directory, version_file):
   stamp_path = os.path.join(PREBUILT_FILE_PATH, "VERSION")
 
   version_path = os.path.join(CURRENT_PATH, version_file)
   with open(version_path) as version_file:
     version = version_file.read().strip()
 
   try:
     with open(stamp_path) as stamp_file:
       current_version = stamp_file.read().strip()
       if current_version == version:
         return 0  # Already have the right version.
   except IOError:
     pass  # If the stamp file does not exist we need to download new binaries.
 
   if sys.platform.startswith("linux"):
-    platforms = ["linux-x64", "android-arm"]
-  elif sys.platform == "darwin":
-    platforms = ["android-arm"]
+    platforms = ["linux-x64"]
   else:
-    print "No prebuilt shell available for %s" % sys.platform
+    print "No prebuilt dart_snapshotter available for %s" % sys.platform
     return 0
 
   for platform in platforms:
     download_version_for_platform(version, platform, tools_directory)
 
   with open(stamp_path, 'w') as stamp_file:
     stamp_file.write(version)
   return 0
 
 def download_version_for_platform(version, platform, tools_directory):
   find_depot_tools_path = os.path.join(CURRENT_PATH, tools_directory)
   sys.path.insert(0, find_depot_tools_path)
   # pylint: disable=F0401
   import find_depot_tools
   depot_tools_path = find_depot_tools.add_depot_tools_to_path()
 
   basename = platform + ".zip"
-  gs_path = "gs://mojo/shell/" + version + "/" + basename
+  gs_path = "gs://mojo/dart_snapshotter/" + version + "/" + basename
 
   with tempfile.NamedTemporaryFile() as temp_zip_file:
     gs.download_from_public_bucket(gs_path, temp_zip_file.name,
                                    depot_tools_path)
     binary_name = BINARY_FOR_PLATFORM[platform]
     output_dir = os.path.join(PREBUILT_FILE_PATH, platform)
     with zipfile.ZipFile(temp_zip_file.name) as z:
       zi = z.getinfo(binary_name)
       mode = zi.external_attr >> 16
       z.extract(zi, output_dir)
       os.chmod(os.path.join(output_dir, binary_name), mode)
 
 
 def main():
-  parser = argparse.ArgumentParser(description="Download mojo_shell binaries "
-                                   "from google storage")
+  parser = argparse.ArgumentParser(
+      description="Download dart_snapshotter binaries from google storage")
   parser.add_argument("--tools-directory",
                       dest="tools_directory",
                       metavar="<tools-directory>",
                       type=str,
                       required=True,
                       help="Path to the directory containing "
                            "find_depot_tools.py, specified as a relative path "
                            "from the location of this file.")
   parser.add_argument("--version-file",
                       dest="version_file",
                       metavar="<version-file>",
                       type=str,
                       default="../VERSION",
                       help="Path to the file containing the version of the "
-                           "shell to be fetched, specified as a relative path "
-                           "from the location of this file (default: "
-                           "%(default)s).")
+                           "dart_snapshotter to be fetched, specified as a"
+                           "relative path from the location of this file "
+                           "(default: %(default)s).")
   args = parser.parse_args()
   return download(args.tools_directory, args.version_file)
 
 if __name__ == "__main__":
   sys.exit(main())