1 #!/usr/bin/env python 2 # Copyright 2017 The Chromium Authors. All rights reserved. 3 # Use of this source code is governed by a BSD-style license that can be 4 # found in the LICENSE file. 5 6 """Script to download lld/mac from google storage.""" 7 8 import os 9 import re 10 import subprocess 11 import sys 12 13 import update 14 15 LLVM_BUILD_DIR = update.LLVM_BUILD_DIR 16 LLD_LINK_PATH = os.path.join(LLVM_BUILD_DIR, 'bin', 'lld-link') 17 18 19 def AlreadyUpToDate(): 20 if not os.path.exists(LLD_LINK_PATH): 21 return False 22 lld_rev = subprocess.check_output([LLD_LINK_PATH, '--version']) 23 return (re.match(r'LLD.*\(trunk (\d+)\)', lld_rev).group(1) == 24 update.CLANG_REVISION) 25 26 27 def main(): 28 if AlreadyUpToDate(): 29 return 0 30 remote_path = '%s/Mac/lld-%s.tgz' % (update.CDS_URL, update.PACKAGE_VERSION) 31 update.DownloadAndUnpack(remote_path, update.LLVM_BUILD_DIR) 32 return 0 33 34 35 if __name__ == '__main__': 36 sys.exit(main()) 37
