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community.general/plugins/modules/system/xfconf.py

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#!/usr/bin/python
# -*- coding: utf-8 -*-
# (c) 2017, Joseph Benden <joe@benden.us>
#
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
DOCUMENTATION = '''
module: xfconf
author:
- "Joseph Benden (@jbenden)"
- "Alexei Znamensky (@russoz)"
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short_description: Edit XFCE4 Configurations
description:
- This module allows for the manipulation of Xfce 4 Configuration via
xfconf-query. Please see the xfconf-query(1) man pages for more details.
options:
channel:
description:
- A Xfconf preference channel is a top-level tree key, inside of the
Xfconf repository that corresponds to the location for which all
application properties/keys are stored. See man xfconf-query(1)
required: yes
type: str
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property:
description:
- A Xfce preference key is an element in the Xfconf repository
that corresponds to an application preference. See man xfconf-query(1)
required: yes
type: str
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value:
description:
- Preference properties typically have simple values such as strings,
integers, or lists of strings and integers. This is ignored if the state
is "get". For array mode, use a list of values. See man xfconf-query(1)
type: list
elements: raw
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value_type:
description:
- The type of value being set. This is ignored if the state is "get".
For array mode, use a list of types.
type: list
elements: str
choices: [ int, uint, bool, float, double, string ]
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state:
Enabling validation-modules for system modules (#1212) * fixed validation-modules for aix_devices.py * fixed validation-modules for aix_filesystem.py * fixed validation-modules for aix_inittab.py * fixed validation-modules for aix_lvg.py * fixed validation-modules for aix_lvol.py * fixed validation-modules for awall.py * fixed validation-modules for dconf.py * fixed validation-modules for gconftool2.py * fixed validation-modules for interfaces_file.py * fixed validation-modules for java_keystore.py * fixed validation-modules for kernel_blacklist.py * fixed validation-modules for plugins/modules/system/lbu.py * fixed validation-modules for plugins/modules/system/locale_gen.py * fixed validation-modules for plugins/modules/system/lvg.py * fixed validation-modules for plugins/modules/system/lvol.py * fixed validation-modules for plugins/modules/system/mksysb.py * fixed validation-modules for plugins/modules/system/modprobe.py * fixed validation-modules for plugins/modules/system/nosh.py * fixed validation-modules for plugins/modules/system/open_iscsi.py * fixed validation-modules for plugins/modules/system/openwrt_init.py * fixed validation-modules for plugins/modules/system/osx_defaults.py * fixed validation-modules for plugins/modules/system/pamd.py * fixed validation-modules for plugins/modules/system/pam_limits.py * fixed validation-modules for plugins/modules/system/parted.py * fixed validation-modules for plugins/modules/system/puppet.py * fixed validation-modules for plugins/modules/system/python_requirements_info.py * fixed validation-modules for plugins/modules/system/runit.py the parameter "dist" is not used anywhere in the module * fixed validation-modules for plugins/modules/system/sefcontext.py * fixed validation-modules for plugins/modules/system/selogin.py * fixed validation-modules for plugins/modules/system/seport.py * fixed validation-modules for plugins/modules/system/solaris_zone.py * fixed validation-modules for plugins/modules/system/syspatch.py * fixed validation-modules for plugins/modules/system/vdo.py * fixed validation-modules for plugins/modules/system/xfconf.py * removed ignore almost all validate-modules lines in system * removed unnecessary validations, per shippable test * kernel_blacklist: keeping blacklist_file as str instead of path * mksysb: keeping storage_path as str instead of path * pam_limits: keeping dest as str instead of path * rollback on adding doc for puppet.py legacy param * rolledback param seuser required in selogin module * rolledback changes in runit * rolledback changes in osx_defaults * rolledback changes in aix_defaults
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type: str
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description:
- The action to take upon the property/value.
choices: [ get, present, absent ]
default: "present"
force_array:
description:
- Force array even if only one element
type: bool
default: 'no'
aliases: ['array']
version_added: 1.0.0
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'''
EXAMPLES = """
- name: Change the DPI to "192"
xfconf:
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channel: "xsettings"
property: "/Xft/DPI"
value_type: "int"
value: "192"
- name: Set workspace names (4)
xfconf:
channel: xfwm4
property: /general/workspace_names
value_type: string
value: ['Main', 'Work1', 'Work2', 'Tmp']
- name: Set workspace names (1)
xfconf:
channel: xfwm4
property: /general/workspace_names
value_type: string
value: ['Main']
force_array: yes
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"""
RETURN = '''
channel:
description: The channel specified in the module parameters
returned: success
type: str
sample: "xsettings"
property:
description: The property specified in the module parameters
returned: success
type: str
sample: "/Xft/DPI"
value_type:
description: The type of the value that was changed
returned: success
type: str
sample: "int"
value:
description: The value of the preference key after executing the module
returned: success
type: str
sample: "192"
previous_value:
description: The value of the preference key before executing the module (None for "get" state).
returned: success
type: str
sample: "96"
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'''
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.six.moves import shlex_quote
class XfConfException(Exception):
pass
class XfConfProperty(object):
SET = "present"
GET = "get"
RESET = "absent"
VALID_STATES = (SET, GET, RESET)
VALID_VALUE_TYPES = ('int', 'uint', 'bool', 'float', 'double', 'string')
previous_value = None
is_array = None
def __init__(self, module):
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self.module = module
self.channel = module.params['channel']
self.property = module.params['property']
self.value_type = module.params['value_type']
self.value = module.params['value']
self.force_array = module.params['force_array']
self.cmd = "{0} --channel {1} --property {2}".format(
module.get_bin_path('xfconf-query', True),
shlex_quote(self.channel),
shlex_quote(self.property)
)
self.method_map = dict(zip((self.SET, self.GET, self.RESET),
(self.set, self.get, self.reset)))
self.does_not = 'Property "{0}" does not exist on channel "{1}".'.format(self.property, self.channel)
def run(cmd):
return module.run_command(cmd, check_rc=False)
self._run = run
def _execute_xfconf_query(self, args=None):
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try:
cmd = self.cmd
if args:
cmd = "{0} {1}".format(cmd, args)
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self.module.debug("Running cmd={0}".format(cmd))
rc, out, err = self._run(cmd)
if err.rstrip() == self.does_not:
return None
if rc or len(err):
raise XfConfException('xfconf-query failed with error (rc={0}): {1}'.format(rc, err))
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return out.rstrip()
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except OSError as exception:
XfConfException('xfconf-query failed with exception: {0}'.format(exception))
def get(self):
previous_value = self._execute_xfconf_query()
if previous_value is None:
return
if "Value is an array with" in previous_value:
previous_value = previous_value.split("\n")
previous_value.pop(0)
previous_value.pop(0)
return previous_value
def reset(self):
self._execute_xfconf_query("--reset")
return None
@staticmethod
def _fix_bool(value):
if value.lower() in ("true", "false"):
value = value.lower()
return value
def _make_value_args(self, value, value_type):
if value_type == 'bool':
value = self._fix_bool(value)
return " --type '{1}' --set '{0}'".format(shlex_quote(value), shlex_quote(value_type))
def set(self):
args = "--create"
if self.is_array:
args += " --force-array"
for v in zip(self.value, self.value_type):
args += self._make_value_args(*v)
else:
args += self._make_value_args(self.value, self.value_type)
self._execute_xfconf_query(args)
return self.value
def call(self, state):
return self.method_map[state]()
def sanitize(self):
self.previous_value = self.get()
if self.value is None and self.value_type is None:
return
if (self.value is None) ^ (self.value_type is None):
raise XfConfException('Must set both "value" and "value_type"')
# stringify all values - in the CLI they will all be happy strings anyway
# and by doing this here the rest of the code can be agnostic to it
self.value = [str(v) for v in self.value]
values_len = len(self.value)
types_len = len(self.value_type)
if types_len == 1:
# use one single type for the entire list
self.value_type = self.value_type * values_len
elif types_len != values_len:
# or complain if lists' lengths are different
raise XfConfException('Same number of "value" and "value_type" needed')
# fix boolean values
self.value = [self._fix_bool(v[0]) if v[1] == 'bool' else v[0] for v in zip(self.value, self.value_type)]
# calculates if it is an array
self.is_array = self.force_array or isinstance(self.previous_value, list) or values_len > 1
if not self.is_array:
self.value = self.value[0]
self.value_type = self.value_type[0]
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def main():
facts_name = "xfconf"
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# Setup the Ansible module
module = AnsibleModule(
argument_spec=dict(
state=dict(default=XfConfProperty.SET,
choices=XfConfProperty.VALID_STATES,
type='str'),
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channel=dict(required=True, type='str'),
property=dict(required=True, type='str'),
value_type=dict(required=False, type='list',
elements='str', choices=XfConfProperty.VALID_VALUE_TYPES),
value=dict(required=False, type='list', elements='raw'),
force_array=dict(default=False, type='bool', aliases=['array']),
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),
required_if=[
('state', XfConfProperty.SET, ['value', 'value_type'])
],
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supports_check_mode=True
)
# Force language to 'C' to ensure return values are always formatted in english, even in non-english environments
module.run_command_environ_update = dict(LANGUAGE='C')
state = module.params['state']
try:
# Create a Xfconf preference
xfconf = XfConfProperty(module)
xfconf.sanitize()
previous_value = xfconf.get()
facts = {
facts_name: dict(
channel=xfconf.channel,
property=xfconf.property,
value_type=xfconf.value_type,
value=previous_value,
)
}
if state == XfConfProperty.GET \
or (previous_value is not None
and (state, set(previous_value)) == (XfConfProperty.SET, set(xfconf.value))):
module.exit_json(changed=False, ansible_facts=facts)
return
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# If check mode, we know a change would have occurred.
if module.check_mode:
new_value = xfconf.value
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else:
new_value = xfconf.call(state)
facts[facts_name].update(value=new_value, previous_value=previous_value)
module.exit_json(changed=True, ansible_facts=facts)
except Exception as e:
module.fail_json(msg="Failed with exception: {0}".format(e))
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if __name__ == '__main__':
main()