blob: b8131fd449d7e279fa54185eb68bed42b036e99a [file] [log] [blame]
#!/usr/bin/env python
# Copyright 2015 the V8 project authors. All rights reserved.
# Copyright 2015 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 download LLVM gold plugin from google storage."""
import json
import os
import re
import platform
import shutil
import subprocess
import sys
import zipfile
# Bail out on windows and cygwin.
if "win" in platform.system().lower():
# Python 2.7.6 hangs at the second path.insert command on windows. Works
# with python 2.7.8.
print "Gold plugin download not supported on windows."
SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
CHROME_SRC = os.path.abspath(os.path.join(SCRIPT_DIR, os.pardir))
sys.path.insert(0, os.path.join(CHROME_SRC, 'tools'))
import find_depot_tools
DEPOT_PATH = find_depot_tools.add_depot_tools_to_path()
GSUTIL_PATH = os.path.join(DEPOT_PATH, '')
LLVM_BUILD_PATH = os.path.join(CHROME_SRC, 'third_party', 'llvm-build',
CLANG_UPDATE_PY = os.path.join(CHROME_SRC, 'tools', 'clang', 'scripts',
CLANG_REVISION = os.popen(CLANG_UPDATE_PY + ' --print-revision').read().rstrip()
CLANG_BUCKET = 'gs://chromium-browser-clang/Linux_x64'
GOLD_PLUGIN_PATH = os.path.join(LLVM_BUILD_PATH, 'lib', '')
sys.path.insert(0, os.path.join(CHROME_SRC, 'tools', 'clang', 'scripts'))
import update
def main():
if not'cfi_vptr=1', os.environ.get('GYP_DEFINES', '')):
# Bailout if this is not a cfi build.
print 'Skipping gold plugin download for non-cfi build.'
return 0
if (os.path.exists(GOLD_PLUGIN_PATH) and
update.ReadStampFile().strip() == update.PACKAGE_VERSION):
# Bailout if clang is up-to-date. This requires the script to be run before
# the clang update step! I.e. afterwards clang would always be up-to-date.
print 'Skipping gold plugin download. File present and clang up to date.'
return 0
# Make sure this works on empty checkouts (i.e. clang not downloaded yet).
if not os.path.exists(LLVM_BUILD_PATH):
targz_name = 'llvmgold-%s.tgz' % CLANG_REVISION
remote_path = '%s/%s' % (CLANG_BUCKET, targz_name)
# TODO(pcc): Fix cp url file < /dev/null 2>&0
# (currently aborts with exit code 1,
# or change the
# stdin->stderr redirect in to do something else (
subprocess.check_call(['python', GSUTIL_PATH,
'cp', remote_path, targz_name],
stderr=open('/dev/null', 'w'))
subprocess.check_call(['tar', 'xzf', targz_name])
return 0
if __name__ == '__main__':