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# -*- coding: utf-8 -*-
# (c) 2020, Alexei Znamensky <russoz@gmail.com>
# Copyright (c) 2020, Ansible Project
# Simplified BSD License (see LICENSES/BSD-2-Clause.txt or https://opensource.org/licenses/BSD-2-Clause)
# SPDX-License-Identifier: BSD-2-Clause
from __future__ import absolute_import, division, print_function
__metaclass__ = type
import copy
class VarMeta(object):
"""
DEPRECATION WARNING
This class is deprecated and will be removed in community.general 10.0.0
Modules should use the VarDict from plugins/module_utils/vardict.py instead.
"""
NOTHING = object()
def __init__(self, diff=False, output=True, change=None, fact=False):
self.init = False
self.initial_value = None
self.value = None
self.diff = diff
self.change = diff if change is None else change
self.output = output
self.fact = fact
def set(self, diff=None, output=None, change=None, fact=None, initial_value=NOTHING):
if diff is not None:
self.diff = diff
if output is not None:
self.output = output
if change is not None:
self.change = change
if fact is not None:
self.fact = fact
if initial_value is not self.NOTHING:
self.initial_value = copy.deepcopy(initial_value)
def set_value(self, value):
if not self.init:
self.initial_value = copy.deepcopy(value)
self.init = True
self.value = value
return self
@property
def has_changed(self):
return self.change and (self.initial_value != self.value)
@property
def diff_result(self):
return None if not (self.diff and self.has_changed) else {
'before': self.initial_value,
'after': self.value,
}
def __str__(self):
return "<VarMeta: value={0}, initial={1}, diff={2}, output={3}, change={4}>".format(
self.value, self.initial_value, self.diff, self.output, self.change
)
class VarDict(object):
"""
DEPRECATION WARNING
This class is deprecated and will be removed in community.general 10.0.0
Modules should use the VarDict from plugins/module_utils/vardict.py instead.
"""
def __init__(self):
self._data = dict()
self._meta = dict()
def __getitem__(self, item):
return self._data[item]
def __setitem__(self, key, value):
self.set(key, value)
def __getattr__(self, item):
try:
return self._data[item]
except KeyError:
return getattr(self._data, item)
def __setattr__(self, key, value):
if key in ('_data', '_meta'):
super(VarDict, self).__setattr__(key, value)
else:
self.set(key, value)
def meta(self, name):
return self._meta[name]
def set_meta(self, name, **kwargs):
self.meta(name).set(**kwargs)
def set(self, name, value, **kwargs):
if name in ('_data', '_meta'):
raise ValueError("Names _data and _meta are reserved for use by ModuleHelper")
self._data[name] = value
if name in self._meta:
meta = self.meta(name)
else:
meta = VarMeta(**kwargs)
meta.set_value(value)
self._meta[name] = meta
def output(self):
return dict((k, v) for k, v in self._data.items() if self.meta(k).output)
def diff(self):
diff_results = [(k, self.meta(k).diff_result) for k in self._data]
diff_results = [dr for dr in diff_results if dr[1] is not None]
if diff_results:
before = dict((dr[0], dr[1]['before']) for dr in diff_results)
after = dict((dr[0], dr[1]['after']) for dr in diff_results)
return {'before': before, 'after': after}
return None
def facts(self):
facts_result = dict((k, v) for k, v in self._data.items() if self._meta[k].fact)
return facts_result if facts_result else None
def change_vars(self):
return [v for v in self._data if self.meta(v).change]
def has_changed(self, v):
return self._meta[v].has_changed
class VarsMixin(object):
"""
DEPRECATION WARNING
This class is deprecated and will be removed in community.general 10.0.0
Modules should use the VarDict from plugins/module_utils/vardict.py instead.
"""
def __init__(self, module=None):
self.vars = VarDict()
super(VarsMixin, self).__init__(module)
def update_vars(self, meta=None, **kwargs):
if meta is None:
meta = {}
for k, v in kwargs.items():
self.vars.set(k, v, **meta)
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