gecko-dev/configure.py

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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
from __future__ import print_function, unicode_literals
import codecs
import itertools
import os
import sys
import textwrap
base_dir = os.path.abspath(os.path.dirname(__file__))
sys.path.insert(0, os.path.join(base_dir, 'python', 'mozbuild'))
from mozbuild.configure import ConfigureSandbox
from mozbuild.makeutil import Makefile
from mozbuild.pythonutil import iter_modules_in_path
from mozbuild.backend.configenvironment import PartialConfigEnvironment
from mozbuild.util import (
indented_repr,
encode,
)
def main(argv):
config = {}
sandbox = ConfigureSandbox(config, os.environ, argv)
sandbox.run(os.path.join(os.path.dirname(__file__), 'moz.configure'))
if sandbox._help:
return 0
return config_status(config)
def config_status(config):
# Sanitize config data to feed config.status
# Ideally, all the backend and frontend code would handle the booleans, but
# there are so many things involved, that it's easier to keep config.status
# untouched for now.
def sanitized_bools(v):
if v is True:
return '1'
if v is False:
return ''
return v
sanitized_config = {}
sanitized_config['substs'] = {
k: sanitized_bools(v) for k, v in config.iteritems()
if k not in ('DEFINES', 'non_global_defines', 'TOPSRCDIR', 'TOPOBJDIR',
'ALL_CONFIGURE_PATHS')
}
sanitized_config['defines'] = {
k: sanitized_bools(v) for k, v in config['DEFINES'].iteritems()
}
sanitized_config['non_global_defines'] = config['non_global_defines']
sanitized_config['topsrcdir'] = config['TOPSRCDIR']
sanitized_config['topobjdir'] = config['TOPOBJDIR']
sanitized_config['mozconfig'] = config.get('MOZCONFIG')
# Create config.status. Eventually, we'll want to just do the work it does
# here, when we're able to skip configure tests/use cached results/not rely
# on autoconf.
print("Creating config.status", file=sys.stderr)
encoding = 'mbcs' if sys.platform == 'win32' else 'utf-8'
with codecs.open('config.status', 'w', encoding) as fh:
fh.write(textwrap.dedent('''\
#!%(python)s
# coding=%(encoding)s
from __future__ import unicode_literals
from mozbuild.util import encode
encoding = '%(encoding)s'
''') % {'python': config['PYTHON'], 'encoding': encoding})
# A lot of the build backend code is currently expecting byte
# strings and breaks in subtle ways with unicode strings. (bug 1296508)
for k, v in sanitized_config.iteritems():
fh.write('%s = encode(%s, encoding)\n' % (k, indented_repr(v)))
fh.write("__all__ = ['topobjdir', 'topsrcdir', 'defines', "
"'non_global_defines', 'substs', 'mozconfig']")
if config.get('MOZ_BUILD_APP') != 'js' or config.get('JS_STANDALONE'):
fh.write(textwrap.dedent('''
if __name__ == '__main__':
from mozbuild.util import patch_main
patch_main()
from mozbuild.config_status import config_status
args = dict([(name, globals()[name]) for name in __all__])
config_status(**args)
'''))
partial_config = PartialConfigEnvironment(config['TOPOBJDIR'])
partial_config.write_vars(sanitized_config)
# Write out a depfile so Make knows to re-run configure when relevant Python
# changes.
mk = Makefile()
rule = mk.create_rule()
rule.add_targets(["%s/config.status" % config['TOPOBJDIR']])
rule.add_dependencies(itertools.chain(config['ALL_CONFIGURE_PATHS'],
iter_modules_in_path(config['TOPOBJDIR'],
config['TOPSRCDIR'])))
with open('configure.d', 'w') as fh:
mk.dump(fh)
# Other things than us are going to run this file, so we need to give it
# executable permissions.
os.chmod('config.status', 0o755)
if config.get('MOZ_BUILD_APP') != 'js' or config.get('JS_STANDALONE'):
os.environ[b'WRITE_MOZINFO'] = b'1'
from mozbuild.config_status import config_status
# Some values in sanitized_config also have more complex types, such as
# EnumString, which using when calling config_status would currently
# break the build, as well as making it inconsistent with re-running
# config.status. Fortunately, EnumString derives from unicode, so it's
# covered by converting unicode strings.
# A lot of the build backend code is currently expecting byte strings
# and breaks in subtle ways with unicode strings.
return config_status(args=[], **encode(sanitized_config, encoding))
return 0
if __name__ == '__main__':
sys.exit(main(sys.argv))