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# Copyright 2011 Google Inc. All Rights Reserved.
"""Builds binaries using NaCl compiler toochain.
This script invokes build_mozc.py with environment variables (PATH, CC, LD,
etc.) set for NaCl SDK. This is a sort of trampoline code.
"""
__author__ = "sekia"
import json
import optparse
import os
import subprocess
def SetNaclSdkPath(nacl_sdk_root, toolchain_dir, env):
"""Adds NaCl SDK toolchain to PATH envorinment variable."""
if nacl_sdk_root and toolchain_dir:
nacl_bin = os.path.abspath(os.path.join(nacl_sdk_root,
'toolchain', toolchain_dir, 'bin'))
env['PATH'] = nacl_bin + os.pathsep + env.get('PATH', '')
def SetNaclToolchainEnv(toolchain_prefix, env):
"""Set NaCl toolchain environment variables."""
commands = {
'AR': 'ar',
'AS': 'as',
'CC': 'gcc',
'CXX': 'g++',
'LD': 'ld',
'NM': 'nm',
'RANLIB': 'ranlib',
'STRIP': 'strip',
}
if toolchain_prefix:
for env_var in commands:
env[env_var] = toolchain_prefix + commands[env_var]
def InvokeBuildMozcScript(build_base, configuration, depth, args, env):
"""Invokes build_mozc.py to build targets with specified configuration."""
command_line = ['./build_mozc.py', 'build']
if build_base:
command_line.append('--build_base=%s' % build_base)
if configuration:
command_line.append('--configuration=%s' % configuration)
if args:
command_line.extend(args)
print 'Running: ' + ' '.join(command_line)
subprocess.check_call(command_line, cwd=depth, env=env)
def main():
parser = optparse.OptionParser()
parser.add_option('--build_base', dest='build_base')
parser.add_option('--depth', dest='depth')
parser.add_option('--nacl_sdk_root', dest='nacl_sdk_root',
help='Path to Native Client SDK directory')
parser.add_option('--target_settings', dest='target_settings',
help='JSON object to specify cross build settings')
parser.add_option('--touch_when_done', dest='touch_when_done',
help='Touches the given file when finished.')
(options, args) = parser.parse_args()
target_settings = json.loads(options.target_settings)
# Check the structure of target_settings before a long way to build.
if type(target_settings) is not list:
raise TypeError('target_settings must be a list.')
for entry in target_settings:
if type(entry) is not dict:
raise TypeError('entries of target_settings must be a dict.')
for key in ('configuration', 'toolchain_dir', 'toolchain_prefix'):
if key not in entry:
raise KeyError('\`%s\' was not found in \`%s\'' % (key, entry))
if type(entry[key]) not in (str, unicode):
raise TypeError('value of \`%s\' is not in type string' % key)
# The type for strings is unicode by default. Converts them to str.
utf8_value = entry[key].encode('utf-8')
del entry[key]
entry[key.encode('utf-8')] = utf8_value
for entry in target_settings:
env = os.environ.copy()
SetNaclSdkPath(options.nacl_sdk_root, entry['toolchain_dir'], env)
SetNaclToolchainEnv(entry['toolchain_prefix'], env)
InvokeBuildMozcScript(options.build_base, entry['configuration'],
options.depth, args, env)
# Touch the given file.
if options.touch_when_done:
with file(options.touch_when_done, 'a'):
os.utime(options.touch_when_done, None)
if __name__ == '__main__':
main()