예제 #1
0
def load_default_settings(config, default_settings):
    """Read settings provided in Paste ini file, set default values and
    replace if defined as environment variable.
    """
    settings = config.get_settings()

    project_name = settings['project_name']

    def _prefixed_keys(key):
        unprefixed = key
        if key.startswith('kinto.') or key.startswith(project_name + '.'):
            unprefixed = key.split('.', 1)[1]
        project_prefix = project_name + '.' + unprefixed
        kinto_prefix = 'kinto.' + unprefixed
        return unprefixed, project_prefix, kinto_prefix

    # Fill settings with default values if not defined.
    for key, default_value in sorted(default_settings.items()):
        unprefixed, project_prefix, kinto_prefix = keys = _prefixed_keys(key)
        is_defined = len(set(settings.keys()).intersection(set(keys))) > 0
        if not is_defined:
            settings[unprefixed] = default_value

    for key, value in sorted(settings.items()):
        unprefixed, project_prefix, kinto_prefix = keys = _prefixed_keys(key)

        # Fail if not only one is defined.
        defined = set(settings.keys()).intersection(set(keys))
        distinct_values = set([str(settings[d]) for d in defined])

        if len(defined) > 1 and len(distinct_values) > 1:
            names = "', '".join(defined)
            raise ValueError("Settings '%s' are in conflict." % names)

        # Maintain backwards compatibility with old settings files that
        # have backend settings like cliquet.foo (which is now
        # kinto.core.foo).
        unprefixed, _, _ = _prefixed_keys(key)
        CONTAIN_CLIQUET_MODULE_NAMES = [
            'storage_backend',
            'cache_backend',
            'permission_backend',
            'logging_renderer',
        ]
        if unprefixed in CONTAIN_CLIQUET_MODULE_NAMES and \
                value.startswith('cliquet.'):
            new_value = value.replace('cliquet.', 'kinto.core.')
            logger.warn(
                "Backend settings referring to cliquet are DEPRECATED. "
                "Please update your {} setting to {} (was: {}).".format(
                    key, new_value, value))
            value = new_value

        # Override settings from OS env values.
        # e.g. HTTP_PORT, READINGLIST_HTTP_PORT, KINTO_HTTP_PORT
        from_env = utils.read_env(unprefixed, value)
        from_env = utils.read_env(project_prefix, from_env)
        from_env = utils.read_env(kinto_prefix, from_env)

        settings[unprefixed] = from_env

    config.add_settings(settings)
예제 #2
0
def load_default_settings(config, default_settings):
    """Read settings provided in Paste ini file, set default values and
    replace if defined as environment variable.
    """
    settings = config.get_settings()

    project_name = settings['project_name']

    def _prefixed_keys(key):
        unprefixed = key
        if key.startswith('kinto.') or key.startswith(project_name + '.'):
            unprefixed = key.split('.', 1)[1]
        project_prefix = project_name + '.' + unprefixed
        kinto_prefix = 'kinto.' + unprefixed
        return unprefixed, project_prefix, kinto_prefix

    # Fill settings with default values if not defined.
    for key, default_value in sorted(default_settings.items()):
        unprefixed, project_prefix, kinto_prefix = keys = _prefixed_keys(key)
        is_defined = len(set(settings.keys()).intersection(set(keys))) > 0
        if not is_defined:
            settings[unprefixed] = default_value

    for key, value in sorted(settings.items()):
        unprefixed, project_prefix, kinto_prefix = keys = _prefixed_keys(key)

        # Fail if not only one is defined.
        defined = set(settings.keys()).intersection(set(keys))
        distinct_values = set([str(settings[d]) for d in defined])

        if len(defined) > 1 and len(distinct_values) > 1:
            names = "', '".join(defined)
            raise ValueError("Settings '%s' are in conflict." % names)

        # Maintain backwards compatibility with old settings files that
        # have backend settings like cliquet.foo (which is now
        # kinto.core.foo).
        unprefixed, _, _ = _prefixed_keys(key)
        CONTAIN_CLIQUET_MODULE_NAMES = [
            'storage_backend',
            'cache_backend',
            'permission_backend',
            'logging_renderer',
        ]
        if unprefixed in CONTAIN_CLIQUET_MODULE_NAMES and \
                value.startswith('cliquet.'):
            new_value = value.replace('cliquet.', 'kinto.core.')
            logger.warn(
                "Backend settings referring to cliquet are DEPRECATED. "
                "Please update your {} setting to {} (was: {}).".format(
                    key, new_value, value))
            value = new_value

        # Override settings from OS env values.
        # e.g. HTTP_PORT, READINGLIST_HTTP_PORT, KINTO_HTTP_PORT
        from_env = utils.read_env(unprefixed, value)
        from_env = utils.read_env(project_prefix, from_env)
        from_env = utils.read_env(kinto_prefix, from_env)

        settings[unprefixed] = from_env

    config.add_settings(settings)