Current File : //lib/python2.7/site-packages/salt/modules/debconfmod.py
# -*- coding: utf-8 -*-
'''
Support for Debconf
'''
from __future__ import absolute_import, print_function, unicode_literals
# Import python libs
import logging
import os
import re
# Import salt libs
import salt.utils.path
import salt.utils.files
import salt.utils.stringutils
import salt.utils.versions
log = logging.getLogger(__name__)
__func_alias__ = {
'set_': 'set'
}
# Define the module's virtual name
__virtualname__ = 'debconf'
def __virtual__():
'''
Confirm this module is on a Debian based system and that debconf-utils
is installed.
'''
if __grains__['os_family'] != 'Debian':
return (False, 'The debconfmod module could not be loaded: '
'unsupported OS family')
if salt.utils.path.which('debconf-get-selections') is None:
return (False, 'The debconfmod module could not be loaded: '
'debconf-utils is not installed.')
return __virtualname__
def _unpack_lines(out):
'''
Unpack the debconf lines
'''
rexp = ('(?ms)'
'^(?P<package>[^#]\\S+)[\t ]+'
'(?P<question>\\S+)[\t ]+'
'(?P<type>\\S+)[\t ]+'
'(?P<value>[^\n]*)$')
lines = re.findall(rexp, out)
return lines
def get_selections(fetchempty=True):
'''
Answers to debconf questions for all packages in the following format::
{'package': [['question', 'type', 'value'], ...]}
CLI Example:
.. code-block:: bash
salt '*' debconf.get_selections
'''
selections = {}
cmd = 'debconf-get-selections'
out = __salt__['cmd.run_stdout'](cmd)
lines = _unpack_lines(out)
for line in lines:
package, question, type_, value = line
if fetchempty or value:
(selections
.setdefault(package, [])
.append([question, type_, value]))
return selections
def show(name):
'''
Answers to debconf questions for a package in the following format::
[['question', 'type', 'value'], ...]
If debconf doesn't know about a package, we return None.
CLI Example:
.. code-block:: bash
salt '*' debconf.show <package name>
'''
selections = get_selections()
result = selections.get(name)
return result
def _set_file(path):
'''
Execute the set selections command for debconf
'''
cmd = 'debconf-set-selections {0}'.format(path)
__salt__['cmd.run_stdout'](cmd, python_shell=False)
def set_(package, question, type, value, *extra):
'''
Set answers to debconf questions for a package.
CLI Example:
.. code-block:: bash
salt '*' debconf.set <package> <question> <type> <value> [<value> ...]
'''
if extra:
value = ' '.join((value,) + tuple(extra))
fd_, fname = salt.utils.files.mkstemp(prefix="salt-", close_fd=False)
line = "{0} {1} {2} {3}".format(package, question, type, value)
os.write(fd_, salt.utils.stringutils.to_bytes(line))
os.close(fd_)
_set_file(fname)
os.unlink(fname)
return True
def set_template(path, template, context, defaults, saltenv='base', **kwargs):
'''
Set answers to debconf questions from a template.
path
location of the file containing the package selections
template
template format
context
variables to add to the template environment
default
default values for the template environment
CLI Example:
.. code-block:: bash
salt '*' debconf.set_template salt://pathto/pkg.selections.jinja jinja None None
'''
path = __salt__['cp.get_template'](
path=path,
dest=None,
template=template,
saltenv=saltenv,
context=context,
defaults=defaults,
**kwargs)
return set_file(path, saltenv, **kwargs)
def set_file(path, saltenv='base', **kwargs):
'''
Set answers to debconf questions from a file.
CLI Example:
.. code-block:: bash
salt '*' debconf.set_file salt://pathto/pkg.selections
'''
if '__env__' in kwargs:
# "env" is not supported; Use "saltenv".
kwargs.pop('__env__')
path = __salt__['cp.cache_file'](path, saltenv)
if path:
_set_file(path)
return True
return False
Mini Shell