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#!/usr/bin/python
# Copyright (c) 2014 The Chromium OS 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 os
from utils import command_executer
class ImageDownloader(object):
def __init__(self, logger_to_use=None, log_level="verbose"):
self._logger = logger_to_use
self.log_level = log_level
self._ce = command_executer.GetCommandExecuter(self._logger,
log_level = self.log_level)
def Run(self, chromeos_root, xbuddy_label):
# Get the translation of the xbuddy_label into the real Google Storage
# image name.
command = ("cd ~/trunk/src/third_party/toolchain-utils/crosperf; "
"python translate_xbuddy.py '%s'" % xbuddy_label)
retval, build_id_tuple_str, _ = self._ce.ChrootRunCommand(chromeos_root,
command, True)
build_id_tuple = eval(build_id_tuple_str)
build_id = build_id_tuple[0]
if self.log_level == "average":
self._logger.LogOutput ("Preparing to download %s image to local directory." % build_id)
# Make sure the directory for downloading the image exists.
download_path = os.path.join(chromeos_root, "chroot/tmp",
build_id)
image_path = os.path.join(download_path, "chromiumos_test_image.bin")
if not os.path.exists(download_path):
command = "mkdir -p %s" % download_path
self._ce.RunCommand (command)
# Check to see if the image has already been downloaded. If not,
# download the image.
retval = 0
if not os.path.exists(image_path):
command = ("gsutil cp gs://chromeos-image-archive/%s"
"/chromiumos_test_image.tar.xz /tmp/%s" % (build_id,
build_id))
if self.log_level != "verbose":
self._logger.LogOutput ("CMD: %s" % command)
retval = self._ce.ChrootRunCommand(chromeos_root, command)
# Uncompress and untar the downloaded image.
command = ("cd /tmp/%s ;unxz chromiumos_test_image.tar.xz; "
"tar -xvf chromiumos_test_image.tar" % build_id)
if self.log_level != "verbose":
self._logger.LogOutput("CMD: %s" % command)
print("(Uncompressing and un-tarring may take a couple of minutes..."
"please be patient.)")
retval = self._ce.ChrootRunCommand(chromeos_root, command)
if retval == 0 and self.log_level != "quiet":
self._logger.LogOutput("Using image from %s." % image_path)
return retval, image_path
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