ansible/library/files/ini_file
2013-06-15 22:21:34 +02:00

209 lines
6.8 KiB
Python

#!/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
examples:
- code: "ini_file: dest=/etc/conf section=drinks option=fav value=lemonade mode=0600 backup=yes"
description: Ensure C(fav=lemonade) is in section C([drinks]) in said file
- code: |
ini_file: dest=/etc/anotherconf
section=drinks
option=temperature
value=cold
backup=yes
notes:
- While it is possible to add an I(option) without specifying a I(value), this makes
no sense.
- A section named C(default) cannot be added by the module, but if it exists, individual
options within the section can be updated. (This is a limitation of Python's I(ConfigParser).)
Either use M(template) to create a base INI file with a C([default]) section, or use
M(lineinfile) to add the missing line.
requirements: [ ConfigParser ]
author: Jan-Piet Mens
'''
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:
if type(option) == str:
try:
if cp.get(section, option):
cp.remove_option(section, option)
changed = True
except:
pass
else:
for o in option:
try:
if cp.get(section, o):
cp.remove_option(section, o)
changed = True
except:
pass
if state == 'present':
if cp.has_section(section) == False:
if section.upper() == 'DEFAULT':
module.fail_json(msg="[DEFAULT] is an illegal section name")
cp.add_section(section)
changed = True
if option is not None and value is not None:
olist = []
vlist = []
if type(option) == str and type(value) == str:
olist.append(option)
vlist.append(value)
else:
olist = list(option)
vlist = list(value)
if len(olist) != len(vlist):
module.fail_json(msg="Option and value lists must be of same lengths")
n = 0
for option in olist:
value = vlist[n]
n = n + 1
try:
oldvalue = cp.get(section, option)
if str(value) != str(oldvalue):
cp.set(section, option, value)
changed = True
except ConfigParser.NoSectionError:
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(
argument_spec = dict(
dest = dict(required=True),
section = dict(required=True),
option = dict(required=False, type='list'),
value = dict(required=False, type='list'),
backup = dict(default='no', type='bool'),
state = dict(default='present', choices=['present', 'absent'])
),
add_file_common_args = True
)
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.params['backup']
changed = do_ini(module, dest, section, option, value, state, backup)
file_args = module.load_file_common_arguments(module.params)
changed = module.set_file_attributes_if_different(file_args, changed)
# Mission complete
module.exit_json(dest=dest, changed=changed, msg="OK")
# this is magic, see lib/ansible/module_common.py
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
main()