Source code for catkin_pkg.group_dependency

# Copyright 2017 Open Source Robotics Foundation, Inc.
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# Licensed under the Apache License, Version 2.0 (the "License");
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#     http://www.apache.org/licenses/LICENSE-2.0
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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
[docs] def extract_group_members(self, packages): self.members = set() for pkg in packages: for g in pkg.member_of_groups: assert g.evaluated_condition is not None if self.name in [g.name for g in pkg.member_of_groups if g.evaluated_condition]: self.members.add(pkg.name)