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community.general/plugins/cache/pickle.py

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# -*- coding: utf-8 -*-
# Copyright (c) 2017, Brian Coca
# Copyright (c) 2017 Ansible Project
# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
# SPDX-License-Identifier: GPL-3.0-or-later
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# Make coding more python3-ish
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
DOCUMENTATION = '''
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name: pickle
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short_description: Pickle formatted files.
description:
- This cache uses Python's pickle serialization format, in per host files, saved to the filesystem.
author: Brian Coca (@bcoca)
options:
_uri:
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required: true
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description:
- Path in which the cache plugin will save the files
env:
- name: ANSIBLE_CACHE_PLUGIN_CONNECTION
ini:
- key: fact_caching_connection
section: defaults
type: path
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_prefix:
description: User defined prefix to use when creating the files
env:
- name: ANSIBLE_CACHE_PLUGIN_PREFIX
ini:
- key: fact_caching_prefix
section: defaults
type: string
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_timeout:
default: 86400
description: Expiration timeout in seconds for the cache plugin data. Set to 0 to never expire
env:
- name: ANSIBLE_CACHE_PLUGIN_TIMEOUT
ini:
- key: fact_caching_timeout
section: defaults
type: float
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'''
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)