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# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
# vim: set filetype=python:
# 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/.

@imports('codecs')
@imports('sys')
def encoded_open(path, mode):
    encoding = 'mbcs' if sys.platform == 'win32' else 'utf-8'
    return codecs.open(path, mode, encoding)


option(env='AUTOCONF', nargs=1, help='Path to autoconf 2.13')

@depends(mozconfig, 'AUTOCONF')
@checking('for autoconf')
@imports(_from='os.path', _import='exists')
@imports('re')
def autoconf(mozconfig, autoconf):
    mozconfig_autoconf = None
    if mozconfig['path']:
        make_extra = mozconfig['make_extra']
        if make_extra:
            for assignment in make_extra:
                m = re.match('(?:export\s+)?AUTOCONF\s*:?=\s*(.+)$',
                             assignment)
                if m:
                    mozconfig_autoconf = m.group(1)

    autoconf = autoconf[0] if autoconf else None

    for ac in (mozconfig_autoconf, autoconf, 'autoconf-2.13', 'autoconf2.13',
               'autoconf213'):
        if ac:
            autoconf = find_program(ac)
            if autoconf:
                break
    else:
        fink = find_program('fink')
        if fink:
            autoconf = os.path.normpath(os.path.join(
                fink, '..', '..', 'lib', 'autoconf2.13', 'bin', 'autoconf'))
        else:
            brew = find_program('brew')
            if brew:
                autoconf = os.path.normpath(os.path.join(
                    brew, '..', '..', 'Cellar', 'autoconf213', '2.13', 'bin',
                    'autoconf213'))

    if not autoconf:
        die('Could not find autoconf 2.13')

    if not exists(autoconf):
        die('Could not find autoconf 2.13 at %s', autoconf)

    return autoconf

set_config('AUTOCONF', autoconf)


@depends('OLD_CONFIGURE', mozconfig, autoconf, check_build_environment, shell,
         old_configure_assignments, build_project)
@imports(_from='__builtin__', _import='open')
@imports(_from='__builtin__', _import='print')
@imports('glob')
@imports('itertools')
@imports('subprocess')
# Import getmtime without overwriting the sandbox os.path.
@imports(_from='os.path', _import='getmtime')
@imports(_from='os.path', _import='exists')
@imports(_from='mozbuild.shellutil', _import='quote')
def prepare_configure(old_configure, mozconfig, autoconf, build_env, shell,
                      old_configure_assignments, build_project):
    # os.path.abspath in the sandbox will ensure forward slashes on Windows,
    # which is actually necessary because this path actually ends up literally
    # as $0, and backslashes there breaks autoconf's detection of the source
    # directory.
    old_configure = os.path.abspath(old_configure[0])
    if build_project == 'js':
        old_configure_dir = os.path.dirname(old_configure)
        if not old_configure_dir.endswith('/js/src'):
            old_configure = os.path.join(old_configure_dir, 'js', 'src',
                                         os.path.basename(old_configure))

    refresh = True
    if exists(old_configure):
        mtime = getmtime(old_configure)
        aclocal = os.path.join(build_env.topsrcdir, 'build', 'autoconf',
                               '*.m4')
        for input in itertools.chain(
            (old_configure + '.in',
             os.path.join(os.path.dirname(old_configure), 'aclocal.m4')),
            glob.iglob(aclocal),
        ):
            if getmtime(input) > mtime:
                break
        else:
            refresh = False

    if refresh:
        log.info('Refreshing %s with %s', old_configure, autoconf)
        script = subprocess.check_output([
            shell, autoconf,
            '--localdir=%s' % os.path.dirname(old_configure),
            old_configure + '.in'])

        # Make old-configure append to config.log, where we put our own log.
        # This could be done with a m4 macro, but it's way easier this way
        script = script.replace('>./config.log', '>>./config.log')

        with open(old_configure, 'wb') as fh:
            fh.write(script)

    cmd = [shell, old_configure]
    with encoded_open('old-configure.vars', 'w') as out:
        log.debug('Injecting the following to old-configure:')
        def inject(command):
            print(command, file=out)
            log.debug('| %s', command)

        if mozconfig['path']:
            for key, value in mozconfig['vars']['added'].items():
                inject("%s=%s" % (key, quote(value)))
            for key, (old, value) in mozconfig['vars']['modified'].items():
                inject("%s=%s" % (key, quote(value)))
            for t in ('env', 'vars'):
                for key in mozconfig[t]['removed'].keys():
                    inject("unset %s" % key)

        # Autoconf is special, because it might be passed from
        # mozconfig['make_extra'], which we don't pass automatically above.
        inject('export AUTOCONF=%s' % quote(autoconf))

        for assignment in old_configure_assignments:
            inject(assignment)

    return cmd


@template
def old_configure_options(*options):
    for opt in options:
        option(opt, nargs='*', help='Help missing for old configure options')

    @dependable
    def all_options():
        return list(options)

    return depends(prepare_configure, extra_old_configure_args, all_options,
                   *options)


@old_configure_options(
    '--cache-file',
    '--datadir',
    '--enable-accessibility',
    '--enable-address-sanitizer',
    '--enable-alsa',
    '--enable-b2g-bt',
    '--enable-b2g-camera',
    '--enable-b2g-ril',
    '--enable-bundled-fonts',
    '--enable-clang-plugin',
    '--enable-content-sandbox',
    '--enable-cookies',
    '--enable-cpp-rtti',
    '--enable-crashreporter',
    '--enable-dbus',
    '--enable-debug-js-modules',
    '--enable-jetpack',
    '--enable-devtools-server',
    '--enable-devtools',
    '--enable-directshow',
    '--enable-dtrace',
    '--enable-dump-painting',
    '--enable-eme',
    '--enable-elf-hack',
    '--enable-extensions',
    '--enable-faststripe',
    '--enable-feeds',
    '--enable-gamepad',
    '--enable-gconf',
    '--enable-gczeal',
    '--enable-gio',
    '--enable-gnomeui',
    '--enable-gold',
    '--enable-hardware-aec-ns',
    '--enable-icf',
    '--enable-install-strip',
    '--enable-ion',
    '--enable-ios-target',
    '--enable-jitspew',
    '--enable-libjpeg-turbo',
    '--enable-libproxy',
    '--enable-llvm-hacks',
    '--enable-logrefcnt',
    '--enable-maintenance-service',
    '--enable-memory-sanitizer',
    '--enable-mobile-optimize',
    '--enable-mozril-geoloc',
    '--enable-necko-wifi',
    '--enable-negotiateauth',
    '--enable-nfc',
    '--enable-nspr-build',
    '--enable-official-branding',
    '--enable-official-vendor',
    '--enable-oom-breakpoint',
    '--enable-optimize',
    '--enable-parental-controls',
    '--enable-pie',
    '--enable-png-arm-neon-support',
    '--enable-posix-nspr-emulation',
    '--enable-precompiled-startupcache',
    '--enable-pref-extensions',
    '--enable-private-build',
    '--enable-pulseaudio',
    '--enable-sndio',
    '--enable-raw',
    '--enable-readline',
    '--enable-reflow-perf',
    '--enable-release',
    '--enable-safe-browsing',
    '--enable-sandbox',
    '--enable-signmar',
    '--enable-simulator',
    '--enable-small-chunk-size',
    '--enable-startup-notification',
    '--enable-startupcache',
    '--enable-stdcxx-compat',
    '--enable-strip',
    '--enable-synth-pico',
    '--enable-system-cairo',
    '--enable-system-extension-dirs',
    '--enable-system-pixman',
    '--enable-system-sqlite',
    '--enable-tasktracer',
    '--enable-tests',
    '--enable-thread-sanitizer',
    '--enable-trace-logging',
    '--enable-ui-locale',
    '--enable-universalchardet',
    '--enable-updater',
    '--enable-url-classifier',
    '--enable-userinfo',
    '--enable-valgrind',
    '--enable-verify-mar',
    '--enable-webrtc',
    '--enable-xul',
    '--enable-zipwriter',
    '--includedir',
    '--libdir',
    '--no-create',
    '--prefix',
    '--with-android-cxx-stl',
    '--with-android-distribution-directory',
    '--with-android-max-sdk',
    '--with-android-min-sdk',
    '--with-android-sdk',
    '--with-app-basename',
    '--with-app-name',
    '--with-arch',
    '--with-branding',
    '--with-crashreporter-enable-percent',
    '--with-cross-lib',
    '--with-debug-label',
    '--with-default-mozilla-five-home',
    '--with-distribution-id',
    '--with-doc-include-dirs',
    '--with-doc-input-dirs',
    '--with-doc-output-dir',
    '--with-float-abi',
    '--with-fpu',
    '--with-ios-sdk',
    '--with-jitreport-granularity',
    '--with-macbundlename-prefix',
    '--with-macos-private-frameworks',
    '--with-macos-sdk',
    '--with-nspr-cflags',
    '--with-nspr-exec-prefix',
    '--with-nspr-libs',
    '--with-nspr-prefix',
    '--with-nss-exec-prefix',
    '--with-nss-prefix',
    '--with-pthreads',
    '--with-qemu-exe',
    '--with-sixgill',
    '--with-soft-float',
    '--with-system-bz2',
    '--with-system-icu',
    '--with-system-jpeg',
    '--with-system-libevent',
    '--with-system-libvpx',
    '--with-system-nspr',
    '--with-system-nss',
    '--with-system-png',
    '--with-system-zlib',
    '--with-thumb',
    '--with-thumb-interwork',
    '--with-unify-dist',
    '--with-user-appdir',
    '--x-includes',
    '--x-libraries',

    # Below are the configure flags used by comm-central.
    '--enable-ldap',
    '--enable-mapi',
    '--enable-calendar',
    '--enable-incomplete-external-linkage',
    '--enable-mailnews',
    
    # Below are configure flags used by Pale Moon
    '--disable-browser-statusbar',
    '--disable-sync',
    '--disable-personas',
    
    # Below are configure flags used by Basilisk
    '--disable-webextensions',
)
@imports(_from='__builtin__', _import='compile')
@imports(_from='__builtin__', _import='open')
@imports('logging')
@imports('os')
@imports('subprocess')
@imports('sys')
@imports(_from='mozbuild.shellutil', _import='quote')
def old_configure(prepare_configure, extra_old_configure_args, all_options,
                  *options):
    cmd = prepare_configure

    # old-configure only supports the options listed in @old_configure_options
    # so we don't need to pass it every single option we've been passed. Only
    # the ones that are not supported by python configure need to.
    cmd += [
        value.format(name)
        for name, value in zip(all_options, options)
        if value.origin != 'default'
    ]

    # We also pass it the options from js/moz.configure so that it can pass
    # them down to js/src/configure. Note this list is empty when running
    # js/src/configure, in which case we don't need to pass those options
    # to old-configure since old-configure doesn't handle them anyways.
    if extra_old_configure_args:
        cmd += extra_old_configure_args

    # For debugging purpose, in case it's not what we'd expect.
    log.debug('Running %s', quote(*cmd))

    # Our logging goes to config.log, the same file old.configure uses.
    # We can't share the handle on the file, so close it. We assume nothing
    # beyond this point is going to be interesting to log to config.log from
    # our end, so we don't make the effort to recreate a logging.FileHandler.
    logger = logging.getLogger('moz.configure')
    for handler in logger.handlers:
        if isinstance(handler, logging.FileHandler):
            handler.close()
            logger.removeHandler(handler)

    log_size = os.path.getsize('config.log')

    ret = subprocess.call(cmd)
    if ret:
        with log.queue_debug():
            with encoded_open('config.log', 'r') as fh:
                fh.seek(log_size)
                for line in fh:
                    log.debug(line.rstrip())
            log.error('old-configure failed')
        sys.exit(ret)

    raw_config = {}
    with encoded_open('config.data', 'r') as fh:
        code = compile(fh.read(), 'config.data', 'exec')
        # Every variation of the exec() function I tried led to:
        # SyntaxError: unqualified exec is not allowed in function 'main' it
        # contains a nested function with free variables
        exec code in raw_config

    # Ensure all the flags known to old-configure appear in the
    # @old_configure_options above.
    all_options = set(all_options)
    for flag in raw_config['flags']:
        if flag not in all_options:
            die('Missing option in `@old_configure_options` in %s: %s',
                __file__, flag)

    # If the code execution above fails, we want to keep the file around for
    # debugging.
    os.remove('config.data')
    return raw_config


# set_config is only available in the global namespace, not directly in
# @depends functions, but we do need to enumerate the result of
# old_configure, so we cheat.
@imports('__sandbox__')
def set_old_configure_config(name, value):
    __sandbox__.set_config_impl(name, value)

# Same as set_old_configure_config, but for set_define.
@imports('__sandbox__')
def set_old_configure_define(name, value):
    __sandbox__.set_define_impl(name, value)


@depends(old_configure)
@imports('types')
def post_old_configure(raw_config):
    for k, v in raw_config['substs']:
        set_old_configure_config(
            k[1:-1], v[1:-1] if isinstance(v, types.StringTypes) else v)

    for k, v in dict(raw_config['defines']).iteritems():
        set_old_configure_define(k[1:-1], v[1:-1])

    set_old_configure_config('non_global_defines',
                             raw_config['non_global_defines'])


# Assuming no other option is declared after this function, handle the
# env options that were injected by mozconfig_options by creating dummy
# Option instances and having the sandbox's CommandLineHelper handle
# them. We only do so for options that haven't been declared so far,
# which should be a proxy for the options that old-configure handles
# and that we don't know anything about.
@depends('--help')
@imports('__sandbox__')
@imports(_from='mozbuild.configure.options', _import='Option')
def remaining_mozconfig_options(_):
    helper = __sandbox__._helper
    for arg in helper:
        if helper._origins[arg] != 'mozconfig':
            continue
        name = arg.split('=', 1)[0]
        if name.isupper() and name not in __sandbox__._options:
            option = Option(env=name, nargs='*', help=name)
            helper.handle(option)

# Please do not add anything after remaining_mozconfig_options()