#!/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 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 = 232685 TARBALL_AMD64 = 'debian_wheezy_amd64_sysroot.tgz' TARBALL_I386 = 'debian_wheezy_i386_sysroot.tgz' SYSROOT_DIR_AMD64 = 'debian_wheezy_amd64-sysroot' SYSROOT_DIR_I386 = 'debian_wheezy_i386-sysroot' 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 else: sysroot = os.path.join(linux_dir, SYSROOT_DIR_I386) tarball_filename = TARBALL_I386 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]) 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))