build/download_gold_plugin.py

   1 #!/usr/bin/env python
   2 # Copyright 2015 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 LLVM gold plugin from google storage."""
   7
   8 import json
   9 import os
  10 import shutil
  11 import subprocess
  12 import sys
  13 import zipfile
  14
  15 SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
  16 CHROME_SRC = os.path.abspath(os.path.join(SCRIPT_DIR, os.pardir))
  17 sys.path.insert(0, os.path.join(CHROME_SRC, 'tools'))
  18
  19 import find_depot_tools
  20
  21 DEPOT_PATH = find_depot_tools.add_depot_tools_to_path()
  22 GSUTIL_PATH = os.path.join(DEPOT_PATH, 'gsutil.py')
  23
  24 LLVM_BUILD_PATH = os.path.join(CHROME_SRC, 'third_party', 'llvm-build',
  25                                'Release+Asserts')
  26 CLANG_UPDATE_PY = os.path.join(CHROME_SRC, 'tools', 'clang', 'scripts',
  27                                'update.py')
  28 CLANG_REVISION = os.popen(CLANG_UPDATE_PY + ' --print-revision').read().rstrip()
  29
  30 CLANG_BUCKET = 'gs://chromium-browser-clang/Linux_x64'
  31
  32 def main():
  33   targz_name = 'llvmgold-%s.tgz' % CLANG_REVISION
  34   remote_path = '%s/%s' % (CLANG_BUCKET, targz_name)
  35
  36   os.chdir(LLVM_BUILD_PATH)
  37
  38   # TODO(pcc): Fix gsutil.py cp url file < /dev/null 2>&0
  39   # (currently aborts with exit code 1,
  40   # https://github.com/GoogleCloudPlatform/gsutil/issues/289) or change the
  41   # stdin->stderr redirect in update.py to do something else (crbug.com/494442).
  42   subprocess.check_call(['python', GSUTIL_PATH,
  43                          'cp', remote_path, targz_name],
  44                         stderr=open('/dev/null', 'w'))
  45   subprocess.check_call(['tar', 'xzf', targz_name])
  46   os.remove(targz_name)
  47   return 0
  48
  49 if __name__ == '__main__':
  50   sys.exit(main())