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 script_dir = os.path.dirname(os.path.abspath(__file__)) 18 src_dir = os.path.dirname(script_dir) 19 nacl_dir = os.path.join(src_dir, 'native_client') 20 nacl_build_dir = os.path.join(nacl_dir, 'build') 21 package_version_dir = os.path.join(nacl_build_dir, 'package_version') 22 package_version = os.path.join(package_version_dir, 'package_version.py') 23 if not os.path.exists(package_version): 24 print "Can't find '%s'" % package_version 25 print 'Presumably you are intentionally building without NativeClient.' 26 print 'Skipping NativeClient toolchain download.' 27 sys.exit(0) 28 sys.path.insert(0, package_version_dir) 29 import package_version 30 31 # BUG: 32 # We remove this --optional-pnacl argument, and instead replace it with 33 # --no-pnacl for most cases. However, if the bot name is an sdk 34 # bot then we will go ahead and download it. This prevents increasing the 35 # gclient sync time for developers, or standard Chrome bots. 36 if '--optional-pnacl' in args: 37 args.remove('--optional-pnacl') 38 use_pnacl = False 39 buildbot_name = os.environ.get('BUILDBOT_BUILDERNAME', '') 40 if 'pnacl' in buildbot_name and 'sdk' in buildbot_name: 41 use_pnacl = True 42 if use_pnacl: 43 print '\n*** DOWNLOADING PNACL TOOLCHAIN ***\n' 44 else: 45 args.extend(['--exclude', 'pnacl_newlib']) 46 47 # Only download the ARM gcc toolchain if we are building for ARM 48 # TODO(olonho): we need to invent more reliable way to get build 49 # configuration info, to know if we're building for ARM. 50 if 'target_arch=arm' not in os.environ.get('GYP_DEFINES', ''): 51 args.extend(['--exclude', 'nacl_arm_newlib']) 52 53 args.append('sync') 54 package_version.main(args) 55 56 # Because we are no longer extracting the toolchain, it is best to delete 57 # the old extracted ones so that no stale toolchains are left behind. This 58 # also would catch any stale code that happens to work because it is using 59 # an old extracted toolchain that was left behind. 60 toolchain_dir = os.path.join(nacl_dir, 'toolchain') 61 for toolchain_item in os.listdir(toolchain_dir): 62 toolchain_path = os.path.join(toolchain_dir, toolchain_item) 63 if os.path.isdir(toolchain_path) and not toolchain_item.startswith('.'): 64 shutil.rmtree(toolchain_path) 65 66 return 0 67 68 69 if __name__ == '__main__': 70 sys.exit(Main(sys.argv[1:])) 71
