__ __ __ __ _____ _ _ _____ _ _ _
| \/ | \ \ / / | __ \ (_) | | / ____| | | | |
| \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | |
| |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | |
| | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | |
|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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# (c) 2017 Ansible By Red Hat
#
# 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.playbook import Play
from ansible.playbook.block import Block
from ansible.playbook.role import Role
from ansible.playbook.task import Task
from ansible.utils.display import Display
display = Display()
def get_reserved_names(include_private=True):
''' this function returns the list of reserved names associated with play objects'''
public = set()
private = set()
result = set()
# FIXME: find a way to 'not hardcode', possibly need role deps/includes
class_list = [Play, Role, Block, Task]
for aclass in class_list:
# build ordered list to loop over and dict with attributes
for name, attr in aclass.fattributes.items():
if attr.private:
private.add(name)
else:
public.add(name)
# local_action is implicit with action
if 'action' in public:
public.add('local_action')
# loop implies with_
# FIXME: remove after with_ is not only deprecated but removed
if 'loop' in private or 'loop' in public:
public.add('with_')
if include_private:
result = public.union(private)
else:
result = public
return result
def warn_if_reserved(myvars, additional=None):
''' this function warns if any variable passed conflicts with internally reserved names '''
if additional is None:
reserved = _RESERVED_NAMES
else:
reserved = _RESERVED_NAMES.union(additional)
varnames = set(myvars)
varnames.discard('vars') # we add this one internally, so safe to ignore
for varname in varnames.intersection(reserved):
display.warning('Found variable using reserved name: %s' % varname)
def is_reserved_name(name):
return name in _RESERVED_NAMES
_RESERVED_NAMES = frozenset(get_reserved_names())