224 lines
7.3 KiB
Python
Executable file
224 lines
7.3 KiB
Python
Executable file
#!/usr/bin/env python
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# Copyright (c) 2013 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Install Debian Wheezy sysroots for building chromium.
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"""
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# The sysroot is needed to ensure that binaries will run on Debian Wheezy,
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# the oldest supported linux distribution. This script can be run manually but
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# is more often run as part of gclient hooks. When run from hooks this script
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# in a no-op on non-linux platforms.
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# The sysroot image could be constructed from scratch based on the current
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# state or Debian Wheezy but for consistency we currently use a pre-built root
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# image. The image will normally need to be rebuilt every time chrome's build
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# dependencies are changed.
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import hashlib
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import platform
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import optparse
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import os
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import re
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import shutil
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import subprocess
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import sys
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SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
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sys.path.append(os.path.dirname(os.path.dirname(SCRIPT_DIR)))
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import detect_host_arch
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import gyp_chromium
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import gyp_environment
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URL_PREFIX = 'https://commondatastorage.googleapis.com'
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URL_PATH = 'chrome-linux-sysroot/toolchain'
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REVISION_AMD64 = 'c52471d9dec240c8d0a88fa98aa1eefeee32e22f'
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REVISION_ARM = 'c52471d9dec240c8d0a88fa98aa1eefeee32e22f'
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REVISION_I386 = 'c52471d9dec240c8d0a88fa98aa1eefeee32e22f'
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REVISION_MIPS = 'c52471d9dec240c8d0a88fa98aa1eefeee32e22f'
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TARBALL_AMD64 = 'debian_wheezy_amd64_sysroot.tgz'
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TARBALL_ARM = 'debian_wheezy_arm_sysroot.tgz'
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TARBALL_I386 = 'debian_wheezy_i386_sysroot.tgz'
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TARBALL_MIPS = 'debian_wheezy_mips_sysroot.tgz'
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TARBALL_AMD64_SHA1SUM = 'ca4ed6e7c9e333b046be19d38584a11f6785eea6'
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TARBALL_ARM_SHA1SUM = '1fab0c2b1e93a933ddc593df3b43872b0ba5ded2'
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TARBALL_I386_SHA1SUM = '80c48c303319af2284e4a104c882d888af75ba81'
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TARBALL_MIPS_SHA1SUM = '01da32a35288627e05cfca193b7f3659531c6f7d'
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SYSROOT_DIR_AMD64 = 'debian_wheezy_amd64-sysroot'
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SYSROOT_DIR_ARM = 'debian_wheezy_arm-sysroot'
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SYSROOT_DIR_I386 = 'debian_wheezy_i386-sysroot'
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SYSROOT_DIR_MIPS = 'debian_wheezy_mips-sysroot'
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valid_archs = ('arm', 'i386', 'amd64', 'mips')
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class Error(Exception):
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pass
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def GetSha1(filename):
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sha1 = hashlib.sha1()
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with open(filename, 'rb') as f:
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while True:
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# Read in 1mb chunks, so it doesn't all have to be loaded into memory.
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chunk = f.read(1024*1024)
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if not chunk:
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break
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sha1.update(chunk)
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return sha1.hexdigest()
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def DetectHostArch():
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# Figure out host arch using build/detect_host_arch.py and
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# set target_arch to host arch
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detected_host_arch = detect_host_arch.HostArch()
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if detected_host_arch == 'x64':
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return 'amd64'
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elif detected_host_arch == 'ia32':
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return 'i386'
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elif detected_host_arch == 'arm':
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return 'arm'
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elif detected_host_arch == 'mips':
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return 'mips'
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raise Error('Unrecognized host arch: %s' % detected_host_arch)
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def DetectTargetArch():
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"""Attempt for determine target architecture.
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This works by looking for target_arch in GYP_DEFINES.
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"""
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# TODO(agrieve): Make this script not depend on GYP_DEFINES so that it works
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# with GN as well.
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gyp_environment.SetEnvironment()
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supplemental_includes = gyp_chromium.GetSupplementalFiles()
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gyp_defines = gyp_chromium.GetGypVars(supplemental_includes)
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target_arch = gyp_defines.get('target_arch')
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if target_arch == 'x64':
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return 'amd64'
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elif target_arch == 'ia32':
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return 'i386'
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elif target_arch == 'arm':
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return 'arm'
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elif target_arch == 'arm64':
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return 'arm64'
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elif target_arch == 'mipsel':
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return 'mips'
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elif target_arch:
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raise Error('Unrecognized target_arch: %s' % target_arch)
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return None
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def InstallDefaultSysroots():
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"""Install the default set of sysroot images.
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This includes at least the sysroot for host architecture, and the 32-bit
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sysroot for building the v8 snapshot image. It can also include the cross
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compile sysroot for ARM/MIPS if cross compiling environment can be detected.
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"""
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host_arch = DetectHostArch()
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InstallSysroot(host_arch)
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if host_arch == 'amd64':
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InstallSysroot('i386')
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# Finally, if we can detect a non-standard target_arch such as ARM or
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# MIPS, then install the sysroot too.
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# Don't attampt to install arm64 since this is currently and android-only
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# architecture.
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target_arch = DetectTargetArch()
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if target_arch and target_arch not in (host_arch, 'i386', 'arm64'):
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InstallSysroot(target_arch)
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def main(args):
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parser = optparse.OptionParser('usage: %prog [OPTIONS]', description=__doc__)
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parser.add_option('--running-as-hook', action='store_true',
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default=False, help='Used when running from gclient hooks.'
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' Installs default sysroot images.')
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parser.add_option('--arch', type='choice', choices=valid_archs,
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help='Sysroot architecture: %s' % ', '.join(valid_archs))
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options, _ = parser.parse_args(args)
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if options.running_as_hook and not sys.platform.startswith('linux'):
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return 0
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if options.running_as_hook:
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InstallDefaultSysroots()
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else:
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if not options.arch:
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print 'You much specify either --arch or --running-as-hook'
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return 1
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InstallSysroot(options.arch)
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return 0
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def InstallSysroot(target_arch):
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# The sysroot directory should match the one specified in build/common.gypi.
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# TODO(thestig) Consider putting this else where to avoid having to recreate
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# it on every build.
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linux_dir = os.path.dirname(SCRIPT_DIR)
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if target_arch == 'amd64':
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sysroot = os.path.join(linux_dir, SYSROOT_DIR_AMD64)
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tarball_filename = TARBALL_AMD64
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tarball_sha1sum = TARBALL_AMD64_SHA1SUM
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revision = REVISION_AMD64
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elif target_arch == 'arm':
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sysroot = os.path.join(linux_dir, SYSROOT_DIR_ARM)
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tarball_filename = TARBALL_ARM
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tarball_sha1sum = TARBALL_ARM_SHA1SUM
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revision = REVISION_ARM
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elif target_arch == 'i386':
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sysroot = os.path.join(linux_dir, SYSROOT_DIR_I386)
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tarball_filename = TARBALL_I386
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tarball_sha1sum = TARBALL_I386_SHA1SUM
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revision = REVISION_I386
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elif target_arch == 'mips':
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sysroot = os.path.join(linux_dir, SYSROOT_DIR_MIPS)
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tarball_filename = TARBALL_MIPS
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tarball_sha1sum = TARBALL_MIPS_SHA1SUM
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revision = REVISION_MIPS
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else:
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raise Error('Unknown architecture: %s' % target_arch)
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url = '%s/%s/%s/%s' % (URL_PREFIX, URL_PATH, revision, tarball_filename)
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stamp = os.path.join(sysroot, '.stamp')
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if os.path.exists(stamp):
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with open(stamp) as s:
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if s.read() == url:
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print 'Debian Wheezy %s root image already up-to-date: %s' % \
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(target_arch, sysroot)
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return
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print 'Installing Debian Wheezy %s root image: %s' % (target_arch, sysroot)
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if os.path.isdir(sysroot):
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shutil.rmtree(sysroot)
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os.mkdir(sysroot)
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tarball = os.path.join(sysroot, tarball_filename)
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print 'Downloading %s' % url
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sys.stdout.flush()
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sys.stderr.flush()
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subprocess.check_call(
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['curl', '--fail', '--retry', '3', '-L', url, '-o', tarball])
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sha1sum = GetSha1(tarball)
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if sha1sum != tarball_sha1sum:
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raise Error('Tarball sha1sum is wrong.'
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'Expected %s, actual: %s' % (tarball_sha1sum, sha1sum))
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subprocess.check_call(['tar', 'xf', tarball, '-C', sysroot])
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os.remove(tarball)
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with open(stamp, 'w') as s:
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s.write(url)
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if __name__ == '__main__':
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try:
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sys.exit(main(sys.argv[1:]))
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except Error as e:
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sys.stderr.write(str(e) + '\n')
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sys.exit(1)
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