| # |
| # 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 .._exceptions import LoadError |
| from ..exceptions import LoadErrorReason |
| from .option import Option, OPTION_SYMBOLS |
| |
| |
| # OptionFlags |
| # |
| # A flags project option |
| # |
| class OptionFlags(Option): |
| |
| OPTION_TYPE = "flags" |
| |
| def __init__(self, name, definition, pool): |
| self.values = None |
| super().__init__(name, definition, pool) |
| |
| def load(self, node): |
| self.load_special(node) |
| |
| def load_special(self, node, allow_value_definitions=True): |
| super().load(node) |
| |
| valid_symbols = OPTION_SYMBOLS + ["default"] |
| if allow_value_definitions: |
| valid_symbols += ["values"] |
| |
| node.validate_keys(valid_symbols) |
| |
| # Allow subclass to define the valid values |
| self.values = self.load_valid_values(node) |
| if not self.values: |
| raise LoadError( |
| "{}: No values specified for {} option '{}'".format( |
| node.get_provenance(), self.OPTION_TYPE, self.name |
| ), |
| LoadErrorReason.INVALID_DATA, |
| ) |
| |
| value_node = node.get_sequence("default", default=[]) |
| self.value = value_node.as_str_list() |
| self.validate(self.value, value_node) |
| |
| def load_value(self, node): |
| value_node = node.get_sequence(self.name) |
| self.value = sorted(value_node.as_str_list()) |
| self.validate(self.value, value_node) |
| |
| def set_value(self, value): |
| # Strip out all whitespace, allowing: "value1, value2 , value3" |
| stripped = "".join(value.split()) |
| |
| # Get the comma separated values |
| list_value = stripped.split(",") |
| |
| self.validate(list_value) |
| self.value = sorted(list_value) |
| |
| def get_value(self): |
| return ",".join(self.value) |
| |
| def validate(self, value, node=None): |
| for flag in value: |
| if flag not in self.values: |
| if node is not None: |
| provenance = node.get_provenance() |
| prefix = "{}: ".format(provenance) |
| else: |
| prefix = "" |
| raise LoadError( |
| "{}Invalid value for flags option '{}': {}\n".format(prefix, self.name, value) |
| + "Valid values: {}".format(", ".join(self.values)), |
| LoadErrorReason.INVALID_DATA, |
| ) |
| |
| def load_valid_values(self, node): |
| # Allow the more descriptive error to raise when no values |
| # exist rather than bailing out here (by specifying default_value) |
| return node.get_str_list("values", default=[]) |