build/download_nacl_toolchains.py

   1 #!/usr/bin/env python
   2 # Copyright (c) 2012 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 """Shim to run nacl toolchain download script only if there is a nacl dir."""
   7
   8 import os
   9 import shutil
  10 import sys
  11
  12
  13 def Main(args):
  14   # Exit early if disable_nacl=1.
  15   if 'disable_nacl=1' in os.environ.get('GYP_DEFINES', ''):
  16     return 0
  17   if 'OS=android' in os.environ.get('GYP_DEFINES', ''):
  18     return 0
  19   script_dir = os.path.dirname(os.path.abspath(__file__))
  20   src_dir = os.path.dirname(script_dir)
  21   nacl_dir = os.path.join(src_dir, 'native_client')
  22   nacl_build_dir = os.path.join(nacl_dir, 'build')
  23   package_version_dir = os.path.join(nacl_build_dir, 'package_version')
  24   package_version = os.path.join(package_version_dir, 'package_version.py')
  25   if not os.path.exists(package_version):
  26     print "Can't find '%s'" % package_version
  27     print 'Presumably you are intentionally building without NativeClient.'
  28     print 'Skipping NativeClient toolchain download.'
  29     sys.exit(0)
  30   sys.path.insert(0, package_version_dir)
  31   import package_version
  32
  33   # BUG:
  34   # We remove this --optional-pnacl argument, and instead replace it with
  35   # --no-pnacl for most cases.  However, if the bot name is an sdk
  36   # bot then we will go ahead and download it.  This prevents increasing the
  37   # gclient sync time for developers, or standard Chrome bots.
  38   if '--optional-pnacl' in args:
  39     args.remove('--optional-pnacl')
  40     use_pnacl = False
  41     buildbot_name = os.environ.get('BUILDBOT_BUILDERNAME', '')
  42     if 'pnacl' in buildbot_name and 'sdk' in buildbot_name:
  43       use_pnacl = True
  44     if use_pnacl:
  45       print '\n*** DOWNLOADING PNACL TOOLCHAIN ***\n'
  46     else:
  47       args = ['--exclude', 'pnacl_newlib'] + args
  48
  49   # Only download the ARM gcc toolchain if we are building for ARM
  50   # TODO(olonho): we need to invent more reliable way to get build
  51   # configuration info, to know if we're building for ARM.
  52   if 'target_arch=arm' not in os.environ.get('GYP_DEFINES', ''):
  53       args = ['--exclude', 'nacl_arm_newlib'] + args
  54
  55   package_version.main(args)
  56
  57   return 0
  58
  59
  60 if __name__ == '__main__':
  61   sys.exit(Main(sys.argv[1:]))