kolla-ansible/ansible/library/merge_configs.py
Sam Yaple 53c0ada479 Removes hashing from merge_configs.py
There is no benefit to hashing in merge_configs.py In fact, the opposite
is true, hashes can collide. This does a direct compare rather than hash.

Change-Id: I9ab7af13e813e2267984092027daf1658faf5bf3
Closes-Bug: #1478494
2015-07-27 10:06:55 +00:00

98 lines
2.4 KiB
Python

#!/usr/bin/python
# Copyright 2015 Sam Yaple
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
DOCUMENTATION = '''
---
module: merge_configs
short_description: Merge ini-style configs
description:
- ConfigParser is used to merge several ini-style configs into one
options:
dest:
description:
- The destination file name
required: True
type: str
sources:
description:
- A list of files on the destination node to merge together
default: None
required: True
type: str
author: Sam Yaple
'''
EXAMPLES = '''
Merge multiple configs:
- hosts: database
tasks:
- name: Merge configs
merge_configs:
sources:
- "/tmp/config_1.cnf"
- "/tmp/config_2.cnf"
- "/tmp/config_3.cnf"
dest:
- "/etc/mysql/my.cnf"
'''
from ConfigParser import ConfigParser
from cStringIO import StringIO
def main():
module = AnsibleModule(
argument_spec = dict(
sources = dict(required=True, type='list'),
dest = dict(required=True, type='str'),
)
)
try:
sources = module.params.pop('sources')
dest = module.params.pop('dest')
changed = False
config = ConfigParser()
for source_file in sources:
config.read(source_file)
if os.path.exists(dest) and os.access(dest, os.R_OK):
fakedest = StringIO()
config.write(fakedest)
with open(dest, 'rb') as f:
files_match = f.read() == fakedest.getvalue()
else:
files_match = False
if not files_match:
changed = True
with open(dest, 'wb') as f:
config.write(f)
module.exit_json(changed=changed)
except Exception, e:
module.exit_json(failed=True, changed=changed, msg=repr(e))
# import module snippets
from ansible.module_utils.basic import *
if __name__ == '__main__':
main()