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#
# Copyright (C) 2017 Codethink Limited
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library. If not, see <http://www.gnu.org/licenses/>.
#
# Authors:
# Tristan Van Berkom <tristan.vanberkom@codethink.co.uk>
from .. import _yaml
from .._exceptions import LoadError, LoadErrorReason
from .option import Option, OPTION_SYMBOLS
# OptionBool
#
# A boolean project option
#
class OptionBool(Option):
OPTION_TYPE = 'bool'
def load(self, node):
super(OptionBool, self).load(node)
_yaml.node_validate(node, OPTION_SYMBOLS + ['default'])
self.value = _yaml.node_get(node, bool, 'default')
def load_value(self, node, *, transform=None):
if transform:
self.set_value(transform(_yaml.node_get(node, str, self.name)))
else:
self.value = _yaml.node_get(node, bool, self.name)
def set_value(self, value):
if value in ('True', 'true'):
self.value = True
elif value in ('False', 'false'):
self.value = False
else:
raise LoadError(LoadErrorReason.INVALID_DATA,
"Invalid value for boolean option {}: {}".format(self.name, value))
def get_value(self):
if self.value:
return "1"
else:
return "0"
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