configure.py

   1 # This Source Code Form is subject to the terms of the Mozilla Public
   2 # License, v. 2.0. If a copy of the MPL was not distributed with this
   3 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   4
   5 from __future__ import absolute_import, print_function, unicode_literals
   6
   7 import codecs
   8 import itertools
   9 import logging
  10 import os
  11 import sys
  12 import textwrap
  13 from collections import Iterable
  14
  15
  16 base_dir = os.path.abspath(os.path.dirname(__file__))
  17 sys.path.insert(0, os.path.join(base_dir, 'python', 'mozbuild'))
  18 sys.path.insert(0, os.path.join(base_dir, 'third_party', 'python', 'six'))
  19 from mozbuild.configure import (
  20     ConfigureSandbox,
  21     TRACE,
  22 )
  23 from mozbuild.pythonutil import iter_modules_in_path
  24 from mozbuild.backend.configenvironment import PartialConfigEnvironment
  25 from mozbuild.util import (
  26     indented_repr,
  27 )
  28 import mozpack.path as mozpath
  29 import six
  30
  31
  32 def main(argv):
  33     config = {}
  34
  35     sandbox = ConfigureSandbox(config, os.environ, argv)
  36
  37     if os.environ.get('MOZ_CONFIGURE_TRACE'):
  38         sandbox._logger.setLevel(TRACE)
  39
  40     sandbox.run(os.path.join(os.path.dirname(__file__), 'moz.configure'))
  41
  42     if sandbox._help:
  43         return 0
  44
  45     return config_status(config)
  46
  47
  48 def check_unicode(obj):
  49     '''Recursively check that all strings in the object are unicode strings.'''
  50     if isinstance(obj, dict):
  51         result = True
  52         for k, v in six.iteritems(obj):
  53             if not check_unicode(k):
  54                 print("%s key is not unicode." % k, file=sys.stderr)
  55                 result = False
  56             elif not check_unicode(v):
  57                 print("%s value is not unicode." % k, file=sys.stderr)
  58                 result = False
  59         return result
  60     if isinstance(obj, bytes):
  61         return False
  62     if isinstance(obj, six.text_type):
  63         return True
  64     if isinstance(obj, Iterable):
  65         return all(check_unicode(o) for o in obj)
  66     return True
  67
  68
  69 def config_status(config):
  70     # Sanitize config data to feed config.status
  71     # Ideally, all the backend and frontend code would handle the booleans, but
  72     # there are so many things involved, that it's easier to keep config.status
  73     # untouched for now.
  74     def sanitized_bools(v):
  75         if v is True:
  76             return '1'
  77         if v is False:
  78             return ''
  79         return v
  80
  81     sanitized_config = {}
  82     sanitized_config['substs'] = {
  83         k: sanitized_bools(v) for k, v in six.iteritems(config)
  84         if k not in ('DEFINES', 'non_global_defines', 'TOPSRCDIR', 'TOPOBJDIR',
  85                      'CONFIG_STATUS_DEPS')
  86     }
  87     sanitized_config['defines'] = {
  88         k: sanitized_bools(v) for k, v in six.iteritems(config['DEFINES'])
  89     }
  90     sanitized_config['non_global_defines'] = config['non_global_defines']
  91     sanitized_config['topsrcdir'] = config['TOPSRCDIR']
  92     sanitized_config['topobjdir'] = config['TOPOBJDIR']
  93     sanitized_config['mozconfig'] = config.get('MOZCONFIG')
  94
  95     if not check_unicode(sanitized_config):
  96         print("Configuration should be all unicode.", file=sys.stderr)
  97         print("Please file a bug for the above.", file=sys.stderr)
  98         sys.exit(1)
  99
 100     # Create config.status. Eventually, we'll want to just do the work it does
 101     # here, when we're able to skip configure tests/use cached results/not rely
 102     # on autoconf.
 103     logging.getLogger('moz.configure').info('Creating config.status')
 104     with codecs.open('config.status', 'w', 'utf-8') as fh:
 105         fh.write(textwrap.dedent('''\
 106             #!%(python)s
 107             # coding=utf-8
 108             from __future__ import unicode_literals
 109         ''') % {'python': config['PYTHON']})
 110         for k, v in six.iteritems(sanitized_config):
 111             fh.write('%s = %s\n' % (k, indented_repr(v)))
 112         fh.write("__all__ = ['topobjdir', 'topsrcdir', 'defines', "
 113                  "'non_global_defines', 'substs', 'mozconfig']")
 114
 115         if config.get('MOZ_BUILD_APP') != 'js' or config.get('JS_STANDALONE'):
 116             fh.write(textwrap.dedent('''
 117                 if __name__ == '__main__':
 118                     from mozbuild.util import patch_main
 119                     patch_main()
 120                     from mozbuild.config_status import config_status
 121                     args = dict([(name, globals()[name]) for name in __all__])
 122                     config_status(**args)
 123             '''))
 124
 125     partial_config = PartialConfigEnvironment(config['TOPOBJDIR'])
 126     partial_config.write_vars(sanitized_config)
 127
 128     # Write out a file so the build backend knows to re-run configure when
 129     # relevant Python changes.
 130     with open('config_status_deps.in', 'w') as fh:
 131         for f in itertools.chain(config['CONFIG_STATUS_DEPS'],
 132                                  iter_modules_in_path(config['TOPOBJDIR'],
 133                                                       config['TOPSRCDIR'])):
 134             fh.write('%s\n' % mozpath.normpath(f))
 135
 136     # Other things than us are going to run this file, so we need to give it
 137     # executable permissions.
 138     os.chmod('config.status', 0o755)
 139     if config.get('MOZ_BUILD_APP') != 'js' or config.get('JS_STANDALONE'):
 140         from mozbuild.config_status import config_status
 141
 142         # Some values in sanitized_config also have more complex types, such as
 143         # EnumString, which using when calling config_status would currently
 144         # break the build, as well as making it inconsistent with re-running
 145         # config.status, for which they are normalized to plain strings via
 146         # indented_repr. Likewise for non-dict non-string iterables being
 147         # converted to lists.
 148         def normalize(obj):
 149             if isinstance(obj, dict):
 150                 return {
 151                     k: normalize(v)
 152                     for k, v in six.iteritems(obj)
 153                 }
 154             if isinstance(obj, six.text_type):
 155                 return six.text_type(obj)
 156             if isinstance(obj, Iterable):
 157                 return [normalize(o) for o in obj]
 158             return obj
 159         return config_status(args=[], **normalize(sanitized_config))
 160     return 0
 161
 162
 163 if __name__ == '__main__':
 164     sys.exit(main(sys.argv))