mirror of
https://github.com/thegeeklab/ansible-later.git
synced 2024-07-03 23:50:58 +02:00
238 lines
7.1 KiB
Python
238 lines
7.1 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import absolute_import, division, print_function
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__metaclass__ = type
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ANSIBLE_METADATA = {'metadata_version': '1.1',
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'status': ['preview'],
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'supported_by': 'community'}
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DOCUMENTATION = '''
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---
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module: locale_gen
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short_description: Creates or removes locales
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description:
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- Manages locales by editing /etc/locale.gen and invoking locale-gen.
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version_added: "1.6"
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author:
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- Augustus Kling (@AugustusKling)
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options:
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name:
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description:
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- Name and encoding of the locale, such as "en_GB.UTF-8".
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required: true
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state:
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description:
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- Whether the locale shall be present.
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choices: [ absent, present ]
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default: present
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'''
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EXAMPLES = '''
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- name: Ensure a locale exists
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locale_gen:
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name: de_CH.UTF-8
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state: present
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'''
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import os
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import re
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from subprocess import Popen, PIPE, call
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from ansible.module_utils.basic import AnsibleModule
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from ansible.module_utils._text import to_native
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LOCALE_NORMALIZATION = {
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".utf8": ".UTF-8",
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".eucjp": ".EUC-JP",
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".iso885915": ".ISO-8859-15",
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".cp1251": ".CP1251",
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".koi8r": ".KOI8-R",
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".armscii8": ".ARMSCII-8",
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".euckr": ".EUC-KR",
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".gbk": ".GBK",
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".gb18030": ".GB18030",
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".euctw": ".EUC-TW",
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}
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# ===========================================
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# location module specific support methods.
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#
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def is_available(name, ubuntuMode):
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"""Check if the given locale is available on the system. This is done by
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checking either :
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* if the locale is present in /etc/locales.gen
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* or if the locale is present in /usr/share/i18n/SUPPORTED"""
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if ubuntuMode:
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__regexp = r'^(?P<locale>\S+_\S+) (?P<charset>\S+)\s*$'
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__locales_available = '/usr/share/i18n/SUPPORTED'
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else:
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__regexp = r'^#{0,1}\s*(?P<locale>\S+_\S+) (?P<charset>\S+)\s*$'
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__locales_available = '/etc/locale.gen'
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re_compiled = re.compile(__regexp)
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fd = open(__locales_available, 'r')
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for line in fd:
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result = re_compiled.match(line)
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if result and result.group('locale') == name:
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return True
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fd.close()
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return False
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def is_present(name):
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"""Checks if the given locale is currently installed."""
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output = Popen(["locale", "-a"], stdout=PIPE).communicate()[0]
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output = to_native(output)
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return any(fix_case(name) == fix_case(line) for line in output.splitlines())
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def fix_case(name):
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"""locale -a might return the encoding in either lower or upper case.
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Passing through this function makes them uniform for comparisons."""
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for s, r in LOCALE_NORMALIZATION.items():
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name = name.replace(s, r)
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return name
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def replace_line(existing_line, new_line):
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"""Replaces lines in /etc/locale.gen"""
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try:
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f = open("/etc/locale.gen", "r")
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lines = [line.replace(existing_line, new_line) for line in f]
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finally:
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f.close()
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try:
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f = open("/etc/locale.gen", "w")
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f.write("".join(lines))
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finally:
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f.close()
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def set_locale(name, enabled=True):
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""" Sets the state of the locale. Defaults to enabled. """
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search_string = r'#{0,1}\s*%s (?P<charset>.+)' % name
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if enabled:
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new_string = r'%s \g<charset>' % (name)
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else:
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new_string = r'# %s \g<charset>' % (name)
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try:
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f = open("/etc/locale.gen", "r")
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lines = [re.sub(search_string, new_string, line) for line in f]
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finally:
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f.close()
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try:
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f = open("/etc/locale.gen", "w")
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f.write("".join(lines))
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finally:
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f.close()
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def apply_change(targetState, name):
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"""Create or remove locale.
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Keyword arguments:
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targetState -- Desired state, either present or absent.
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name -- Name including encoding such as de_CH.UTF-8.
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"""
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if targetState == "present":
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# Create locale.
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set_locale(name, enabled=True)
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else:
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# Delete locale.
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set_locale(name, enabled=False)
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localeGenExitValue = call("locale-gen")
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if localeGenExitValue != 0:
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raise EnvironmentError(localeGenExitValue, "locale.gen failed to execute, it returned " + str(localeGenExitValue))
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def apply_change_ubuntu(targetState, name):
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"""Create or remove locale.
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Keyword arguments:
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targetState -- Desired state, either present or absent.
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name -- Name including encoding such as de_CH.UTF-8.
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"""
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if targetState == "present":
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# Create locale.
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# Ubuntu's patched locale-gen automatically adds the new locale to /var/lib/locales/supported.d/local
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localeGenExitValue = call(["locale-gen", name])
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else:
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# Delete locale involves discarding the locale from /var/lib/locales/supported.d/local and regenerating all locales.
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try:
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f = open("/var/lib/locales/supported.d/local", "r")
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content = f.readlines()
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finally:
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f.close()
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try:
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f = open("/var/lib/locales/supported.d/local", "w")
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for line in content:
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locale, charset = line.split(' ')
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if locale != name:
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f.write(line)
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finally:
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f.close()
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# Purge locales and regenerate.
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# Please provide a patch if you know how to avoid regenerating the locales to keep!
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localeGenExitValue = call(["locale-gen", "--purge"])
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if localeGenExitValue != 0:
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raise EnvironmentError(localeGenExitValue, "locale.gen failed to execute, it returned " + str(localeGenExitValue))
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def main():
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module = AnsibleModule(
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argument_spec=dict(
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name=dict(type='str', required=True),
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state=dict(type='str', default='present', choices=['absent', 'present']),
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),
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supports_check_mode=True,
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)
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name = module.params['name']
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state = module.params['state']
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if not os.path.exists("/etc/locale.gen"):
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if os.path.exists("/var/lib/locales/supported.d/"):
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# Ubuntu created its own system to manage locales.
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ubuntuMode = True
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else:
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module.fail_json(msg="/etc/locale.gen and /var/lib/locales/supported.d/local are missing. Is the package \"locales\" installed?")
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else:
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# We found the common way to manage locales.
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ubuntuMode = False
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if not is_available(name, ubuntuMode):
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module.fail_json(msg="The locales you've entered is not available "
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"on your system.")
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if is_present(name):
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prev_state = "present"
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else:
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prev_state = "absent"
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changed = (prev_state != state)
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if module.check_mode:
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module.exit_json(changed=changed)
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else:
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if changed:
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try:
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if ubuntuMode is False:
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apply_change(state, name)
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else:
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apply_change_ubuntu(state, name)
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except EnvironmentError as e:
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module.fail_json(msg=to_native(e), exitValue=e.errno)
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module.exit_json(name=name, changed=changed, msg="OK")
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if __name__ == '__main__':
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main()
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