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1#!/usr/bin/env python3
2# Copyright 2012 The Chromium Authors
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
9import os
10import shutil
11import sys
12
13
14def Main(args):
15  script_dir = os.path.dirname(os.path.abspath(__file__))
16  src_dir = os.path.dirname(script_dir)
17  nacl_dir = os.path.join(src_dir, 'native_client')
18  nacl_build_dir = os.path.join(nacl_dir, 'build')
19  package_version_dir = os.path.join(nacl_build_dir, 'package_version')
20  package_version = os.path.join(package_version_dir, 'package_version.py')
21  if not os.path.exists(package_version):
22    print("Can't find '%s'" % package_version)
23    print('Presumably you are intentionally building without NativeClient.')
24    print('Skipping NativeClient toolchain download.')
25    sys.exit(0)
26  sys.path.insert(0, package_version_dir)
27  import package_version
28
29  # BUG:
30  # We remove this --optional-pnacl argument, and instead replace it with
31  # --no-pnacl for most cases.  However, if the bot name is an sdk
32  # bot then we will go ahead and download it.  This prevents increasing the
33  # gclient sync time for developers, or standard Chrome bots.
34  if '--optional-pnacl' in args:
35    args.remove('--optional-pnacl')
36    use_pnacl = False
37    buildbot_name = os.environ.get('BUILDBOT_BUILDERNAME', '')
38    if 'pnacl' in buildbot_name and 'sdk' in buildbot_name:
39      use_pnacl = True
40    if use_pnacl:
41      print('\n*** DOWNLOADING PNACL TOOLCHAIN ***\n')
42    else:
43      args = ['--exclude', 'pnacl_newlib'] + args
44
45  # Only download the ARM gcc toolchain if we are building for ARM
46  # TODO(olonho): we need to invent more reliable way to get build
47  # configuration info, to know if we're building for ARM.
48  if 'target_arch=arm' not in os.environ.get('GYP_DEFINES', ''):
49    args = ['--exclude', 'nacl_arm_newlib'] + args
50
51  return package_version.main(args)
52
53
54if __name__ == '__main__':
55  sys.exit(Main(sys.argv[1:]))
56