Source code for catkin_pkg.group_dependency
# Copyright 2017 Open Source Robotics Foundation, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from catkin_pkg.condition import evaluate_condition
[docs]class GroupDependency:
__slots__ = [
'name',
'condition',
'evaluated_condition',
'members',
]
def __init__(self, name, condition=None, members=None):
self.name = name
self.condition = condition
self.members = members
self.evaluated_condition = None
def __eq__(self, other):
if not isinstance(other, GroupDependency):
return False
return all(getattr(self, attr) == getattr(other, attr)
for attr in self.__slots__)
def __str__(self):
return self.name
[docs] def evaluate_condition(self, context):
"""
Evaluate the condition.
The result is also stored in the member variable `evaluated_condition`.
:param context: A dictionary with key value pairs to replace variables
starting with $ in the condition.
:returns: True if the condition evaluates to True, else False
:raises: :exc:`ValueError` if the condition fails to parse
"""
self.evaluated_condition = evaluate_condition(self.condition, context)
return self.evaluated_condition