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community.general/plugins/modules/source_control/git_config.py

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2020-03-09 10:11:07 +01:00
#!/usr/bin/python
# -*- coding: utf-8 -*-
# (c) 2015, Marius Gedminas <marius@pov.lt>
# (c) 2016, Matthew Gamble <git@matthewgamble.net>
#
# 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
ANSIBLE_METADATA = {'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'community'}
DOCUMENTATION = '''
---
module: git_config
author:
- Matthew Gamble (@djmattyg007)
- Marius Gedminas (@mgedmin)
requirements: ['git']
short_description: Read and write git configuration
description:
- The C(git_config) module changes git configuration by invoking 'git config'.
This is needed if you don't want to use M(template) for the entire git
config file (e.g. because you need to change just C(user.email) in
/etc/.git/config). Solutions involving M(command) are cumbersome or
don't work correctly in check mode.
options:
list_all:
description:
- List all settings (optionally limited to a given I(scope))
type: bool
default: 'no'
name:
description:
- The name of the setting. If no value is supplied, the value will
be read from the config if it has been set.
repo:
description:
- Path to a git repository for reading and writing values from a
specific repo.
scope:
description:
- Specify which scope to read/set values from. This is required
when setting config values. If this is set to local, you must
also specify the repo parameter. It defaults to system only when
not using I(list_all)=yes.
choices: [ "local", "global", "system" ]
state:
description:
- "Indicates the setting should be set/unset.
This parameter has higher precedence than I(value) parameter:
when I(state)=absent and I(value) is defined, I(value) is discarded."
choices: [ 'present', 'absent' ]
default: 'present'
value:
description:
- When specifying the name of a single setting, supply a value to
set that setting to the given value.
'''
EXAMPLES = '''
# Set some settings in ~/.gitconfig
- git_config:
name: alias.ci
scope: global
value: commit
- git_config:
name: alias.st
scope: global
value: status
# Unset some settings in ~/.gitconfig
- git_config:
name: alias.ci
scope: global
state: absent
# Or system-wide:
- git_config:
name: alias.remotev
scope: system
value: remote -v
- git_config:
name: core.editor
scope: global
value: vim
# scope=system is the default
- git_config:
name: alias.diffc
value: diff --cached
- git_config:
name: color.ui
value: auto
# Make etckeeper not complain when invoked by cron
- git_config:
name: user.email
repo: /etc
scope: local
value: 'root@{{ ansible_fqdn }}'
# Read individual values from git config
- git_config:
name: alias.ci
scope: global
# scope: system is also assumed when reading values, unless list_all=yes
- git_config:
name: alias.diffc
# Read all values from git config
- git_config:
list_all: yes
scope: global
# When list_all=yes and no scope is specified, you get configuration from all scopes
- git_config:
list_all: yes
# Specify a repository to include local settings
- git_config:
list_all: yes
repo: /path/to/repo.git
'''
RETURN = '''
---
config_value:
description: When list_all=no and value is not set, a string containing the value of the setting in name
returned: success
type: str
sample: "vim"
config_values:
description: When list_all=yes, a dict containing key/value pairs of multiple configuration settings
returned: success
type: dict
sample:
core.editor: "vim"
color.ui: "auto"
alias.diffc: "diff --cached"
alias.remotev: "remote -v"
'''
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.six.moves import shlex_quote
def main():
module = AnsibleModule(
argument_spec=dict(
list_all=dict(required=False, type='bool', default=False),
name=dict(type='str'),
repo=dict(type='path'),
scope=dict(required=False, type='str', choices=['local', 'global', 'system']),
state=dict(required=False, type='str', default='present', choices=['present', 'absent']),
value=dict(required=False)
),
mutually_exclusive=[['list_all', 'name'], ['list_all', 'value'], ['list_all', 'state']],
required_if=[('scope', 'local', ['repo'])],
required_one_of=[['list_all', 'name']],
supports_check_mode=True,
)
git_path = module.get_bin_path('git', True)
params = module.params
# We check error message for a pattern, so we need to make sure the messages appear in the form we're expecting.
# Set the locale to C to ensure consistent messages.
module.run_command_environ_update = dict(LANG='C', LC_ALL='C', LC_MESSAGES='C', LC_CTYPE='C')
if params['name']:
name = params['name']
else:
name = None
if params['scope']:
scope = params['scope']
elif params['list_all']:
scope = None
else:
scope = 'system'
if params['state'] == 'absent':
unset = 'unset'
params['value'] = None
else:
unset = None
if params['value']:
new_value = params['value']
else:
new_value = None
args = [git_path, "config", "--includes"]
if params['list_all']:
args.append('-l')
if scope:
args.append("--" + scope)
if name:
args.append(name)
if scope == 'local':
dir = params['repo']
elif params['list_all'] and params['repo']:
# Include local settings from a specific repo when listing all available settings
dir = params['repo']
else:
# Run from root directory to avoid accidentally picking up any local config settings
dir = "/"
(rc, out, err) = module.run_command(' '.join(args), cwd=dir)
if params['list_all'] and scope and rc == 128 and 'unable to read config file' in err:
# This just means nothing has been set at the given scope
module.exit_json(changed=False, msg='', config_values={})
elif rc >= 2:
# If the return code is 1, it just means the option hasn't been set yet, which is fine.
module.fail_json(rc=rc, msg=err, cmd=' '.join(args))
if params['list_all']:
values = out.rstrip().splitlines()
config_values = {}
for value in values:
k, v = value.split('=', 1)
config_values[k] = v
module.exit_json(changed=False, msg='', config_values=config_values)
elif not new_value and not unset:
module.exit_json(changed=False, msg='', config_value=out.rstrip())
elif unset and not out:
module.exit_json(changed=False, msg='no setting to unset')
else:
old_value = out.rstrip()
if old_value == new_value:
module.exit_json(changed=False, msg="")
if not module.check_mode:
if unset:
args.insert(len(args) - 1, "--" + unset)
cmd = ' '.join(args)
else:
new_value_quoted = shlex_quote(new_value)
cmd = ' '.join(args + [new_value_quoted])
(rc, out, err) = module.run_command(cmd, cwd=dir)
if err:
module.fail_json(rc=rc, msg=err, cmd=cmd)
module.exit_json(
msg='setting changed',
diff=dict(
before_header=' '.join(args),
before=old_value + "\n",
after_header=' '.join(args),
after=(new_value or '') + "\n"
),
changed=True
)
if __name__ == '__main__':
main()