| #!/usr/bin/env python |
| # Copyright (c) 2013 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. |
| |
| # Script to install a Debian Wheezy sysroot for making official Google Chrome |
| # Linux builds. |
| # The sysroot is needed to make Chrome work for Debian Wheezy. |
| # This script can be run manually but is more often run as part of gclient |
| # hooks. When run from hooks this script should be a no-op on non-linux |
| # platforms. |
| |
| # The sysroot image could be constructed from scratch based on the current |
| # state or Debian Wheezy but for consistency we currently use a pre-built root |
| # image. The image will normally need to be rebuilt every time chrome's build |
| # dependancies are changed. |
| |
| import hashlib |
| import platform |
| import optparse |
| import os |
| import re |
| import shutil |
| import subprocess |
| import sys |
| |
| |
| SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__)) |
| URL_PREFIX = 'https://commondatastorage.googleapis.com' |
| URL_PATH = 'chrome-linux-sysroot/toolchain' |
| REVISION = 264817 |
| TARBALL_AMD64 = 'debian_wheezy_amd64_sysroot.tgz' |
| TARBALL_I386 = 'debian_wheezy_i386_sysroot.tgz' |
| TARBALL_AMD64_SHA1SUM = '74b7231e12aaf45c5c5489d9aebb56bd6abb3653' |
| TARBALL_I386_SHA1SUM = 'fe3d284926839683b00641bc66c9023f872ea4b4' |
| SYSROOT_DIR_AMD64 = 'debian_wheezy_amd64-sysroot' |
| SYSROOT_DIR_I386 = 'debian_wheezy_i386-sysroot' |
| |
| |
| def get_sha1(filename): |
| sha1 = hashlib.sha1() |
| with open(filename, 'rb') as f: |
| while True: |
| # Read in 1mb chunks, so it doesn't all have to be loaded into memory. |
| chunk = f.read(1024*1024) |
| if not chunk: |
| break |
| sha1.update(chunk) |
| return sha1.hexdigest() |
| |
| |
| def main(args): |
| if options.arch not in ['amd64', 'i386']: |
| print 'Unknown architecture: %s' % options.arch |
| return 1 |
| |
| if options.linux_only: |
| # This argument is passed when run from the gclient hooks. |
| # In this case we return early on non-linux platforms. |
| if not sys.platform.startswith('linux'): |
| return 0 |
| |
| # Only install the sysroot for an Official Chrome Linux build. |
| defined = ['branding=Chrome', 'buildtype=Official'] |
| undefined = ['chromeos=1'] |
| gyp_defines = os.environ.get('GYP_DEFINES', '') |
| for option in defined: |
| if option not in gyp_defines: |
| return 0 |
| for option in undefined: |
| if option in gyp_defines: |
| return 0 |
| |
| # Check for optional target_arch and only install for that architecture. |
| # If target_arch is not specified, then only install for the host |
| # architecture. |
| host_arch = '' |
| if 'target_arch=x64' in gyp_defines: |
| host_arch = 'amd64' |
| elif 'target_arch=ia32' in gyp_defines: |
| host_arch = 'i386' |
| else: |
| # Figure out host arch, like the host_arch variable in build/common.gypi. |
| machine_type = platform.machine() |
| if machine_type in ['amd64', 'x86_64']: |
| host_arch = 'amd64' |
| elif re.match('(i[3-6]86|i86pc)$', machine_type): |
| host_arch = 'i386' |
| if host_arch != options.arch: |
| return 0 |
| |
| # The sysroot directory should match the one specified in build/common.gypi. |
| # TODO(thestig) Consider putting this else where to avoid having to recreate |
| # it on every build. |
| linux_dir = os.path.dirname(SCRIPT_DIR) |
| if options.arch == 'amd64': |
| sysroot = os.path.join(linux_dir, SYSROOT_DIR_AMD64) |
| tarball_filename = TARBALL_AMD64 |
| tarball_sha1sum = TARBALL_AMD64_SHA1SUM |
| else: |
| sysroot = os.path.join(linux_dir, SYSROOT_DIR_I386) |
| tarball_filename = TARBALL_I386 |
| tarball_sha1sum = TARBALL_I386_SHA1SUM |
| url = '%s/%s/%s/%s' % (URL_PREFIX, URL_PATH, REVISION, tarball_filename) |
| |
| stamp = os.path.join(sysroot, '.stamp') |
| if os.path.exists(stamp): |
| with open(stamp) as s: |
| if s.read() == url: |
| print 'Debian Wheezy %s root image already up-to-date: %s' % \ |
| (options.arch, sysroot) |
| return 0 |
| |
| print 'Installing Debian Wheezy %s root image: %s' % (options.arch, sysroot) |
| if os.path.isdir(sysroot): |
| shutil.rmtree(sysroot) |
| os.mkdir(sysroot) |
| tarball = os.path.join(sysroot, tarball_filename) |
| subprocess.check_call(['curl', '-L', url, '-o', tarball]) |
| sha1sum = get_sha1(tarball) |
| if sha1sum != tarball_sha1sum: |
| print 'Tarball sha1sum is wrong.' |
| print 'Expected %s, actual: %s' % (tarball_sha1sum, sha1sum) |
| return 1 |
| subprocess.check_call(['tar', 'xf', tarball, '-C', sysroot]) |
| os.remove(tarball) |
| |
| with open(stamp, 'w') as s: |
| s.write(url) |
| return 0 |
| |
| |
| if __name__ == '__main__': |
| parser = optparse.OptionParser('usage: %prog [OPTIONS]') |
| parser.add_option('', '--linux-only', dest='linux_only', action='store_true', |
| default=False, help='Only install sysroot for official ' |
| 'Linux builds') |
| parser.add_option('', '--arch', dest='arch', |
| help='Sysroot architecture, i386 or amd64') |
| options, args = parser.parse_args() |
| sys.exit(main(options)) |