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ansible/library/ini_file

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#!/usr/bin/python
# -*- coding: utf-8 -*-
# (c) 2012, Jan-Piet Mens <jpmens () gmail.com>
#
# 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 = '''
---
module: ini_file
short_description: Tweak settings in INI files
description:
- Manage (add, remove, change) individual settings in an INI-style file without having
to manage the file as a whole with, say, M(template) or M(assemble). Adds missing
sections if they don't exist.
version_added: "0.9"
options:
dest:
description:
- Path to the INI-style file; this file is created if required
required: true
default: null
section:
description:
- Section name in INI file. This is added if C(state=present) automatically when
a single value is being set.
required: true
default: null
option:
description:
- if set (required for changing a I(value)), this is the name of the option.
- May be omitted if adding/removing a whole I(section).
required: false
default: null
value:
description:
- the string value to be associated with an I(option). May be omitted when removing an I(option).
required: false
default: null
backup:
description:
- Create a backup file including the timestamp information so you can get
the original file back if you somehow clobbered it incorrectly.
required: false
default: no
choices: [ "yes", "no" ]
others:
description:
- all arguments accepted by the M(file) module also work here
required: false
notes:
- While it is possible to add an I(option) without specifying a I(value), this makes
no sense.
requirements: [ ConfigParser ]
author: Jan-Piet Mens
'''
EXAMPLES = [
"""
- code: ini_file dest=/etc/conf section=drinks option=fav value=lemonade mode=0600 backup=true
description: Ensure C(fav=lemonade) is in section C([drinks]) in said file
""",
""" ini_file dest=/etc/anotherconf
section=drinks
option=temperature
value=cold
backup=true
"""
]
import ConfigParser
# ==============================================================
# do_ini
def do_ini(module, filename, section=None, option=None, value=None, state='present', backup=False):
changed = False
cp = ConfigParser.ConfigParser()
try:
f = open(filename)
cp.readfp(f)
except IOError:
pass
if state == 'absent':
if option is None and value is None:
if cp.has_section(section):
cp.remove_section(section)
changed = True
else:
if option is not None:
try:
if cp.get(section, option):
cp.remove_option(section, option)
changed = True
except:
pass
if state == 'present':
if cp.has_section(section) == False:
cp.add_section(section)
changed = True
if option is not None and value is not None:
try:
oldvalue = cp.get(section, option)
if str(value) != str(oldvalue):
cp.set(section, option, value)
changed = True
except ConfigParser.NoOptionError:
cp.set(section, option, value)
changed = True
if changed:
if backup:
module.backup_local(filename)
try:
f = open(filename, 'w')
cp.write(f)
except:
module.fail_json(msg="Can't creat %s" % filename)
return changed
# ==============================================================
# main
def main():
module = AnsibleModule(
# not checking because of daisy chain to file module
check_invalid_arguments = False,
argument_spec = dict(
dest = dict(required=True),
section = dict(required=True),
option = dict(required=False),
value = dict(required=False),
backup = dict(default='no', choices=BOOLEANS),
state = dict(default='present', choices=['present', 'absent'])
)
)
info = dict()
dest = os.path.expanduser(module.params['dest'])
section = module.params['section']
option = module.params['option']
value = module.params['value']
state = module.params['state']
backup = module.boolean(module.params['backup'])
changed = do_ini(module, dest, section, option, value, state, backup)
info['daisychain_args'] = module.params
info['daisychain_args']['state'] = 'file'
info['daisychain_args']['dest'] = dest
# Mission complete
module.exit_json(dest=dest,
changed=changed, msg="OK",
daisychain="file", daisychain_args=info.get('daisychain_args',''))
# this is magic, see lib/ansible/module_common.py
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
main()