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# (c) 2012-2014, Michael DeHaan <michael.dehaan@gmail.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
# Make coding more python3-ish
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
from ansible.errors import AnsibleError
from ansible.module_utils.six import string_types
from ansible.playbook.attribute import FieldAttribute
from ansible.template import Templar
from ansible.utils.sentinel import Sentinel
def _flatten_tags(tags: list) -> list:
rv = set()
for tag in tags:
if isinstance(tag, list):
rv.update(tag)
else:
rv.add(tag)
return list(rv)
class Taggable:
untagged = frozenset(['untagged'])
tags = FieldAttribute(isa='list', default=list, listof=(string_types, int), extend=True)
def _load_tags(self, attr, ds):
if isinstance(ds, list):
return ds
elif isinstance(ds, string_types):
return [x.strip() for x in ds.split(',')]
else:
raise AnsibleError('tags must be specified as a list', obj=ds)
def evaluate_tags(self, only_tags, skip_tags, all_vars):
''' this checks if the current item should be executed depending on tag options '''
if self.tags:
templar = Templar(loader=self._loader, variables=all_vars)
obj = self
while obj is not None:
if (_tags := getattr(obj, "_tags", Sentinel)) is not Sentinel:
obj._tags = _flatten_tags(templar.template(_tags))
obj = obj._parent
tags = set(self.tags)
else:
# this makes isdisjoint work for untagged
tags = self.untagged
should_run = True # default, tasks to run
if only_tags:
if 'always' in tags:
should_run = True
elif ('all' in only_tags and 'never' not in tags):
should_run = True
elif not tags.isdisjoint(only_tags):
should_run = True
elif 'tagged' in only_tags and tags != self.untagged and 'never' not in tags:
should_run = True
else:
should_run = False
if should_run and skip_tags:
# Check for tags that we need to skip
if 'all' in skip_tags:
if 'always' not in tags or 'always' in skip_tags:
should_run = False
elif not tags.isdisjoint(skip_tags):
should_run = False
elif 'tagged' in skip_tags and tags != self.untagged:
should_run = False
return should_run
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