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# (c) 2017, Brian Coca
#
# 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/>.
'''
DOCUMENTATION:
cache: yaml
short_description: Pickle formatted files.
description:
- This cache uses Python's pickle serialization format, in per host files, saved to the filesystem.
version_added: "2.3"
author: Brian Coca (@bcoca)
'''
# Make coding more python3-ish
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
try:
import cPickle as pickle
except ImportError:
import pickle
from ansible.module_utils.six import PY3
from ansible.plugins.cache import BaseFileCacheModule
class CacheModule(BaseFileCacheModule):
"""
A caching module backed by pickle files.
"""
def _load(self, filepath):
# Pickle is a binary format
with open(filepath, 'rb') as f:
if PY3:
return pickle.load(f, encoding='bytes')
else:
return pickle.load(f)
def _dump(self, value, filepath):
with open(filepath, 'wb') as f:
# Use pickle protocol 2 which is compatible with Python 2.3+.
pickle.dump(value, f, protocol=2)
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