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474 lines
17 KiB
Python
474 lines
17 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2012, Flowroute LLC
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# Written by Matthew Williams <matthew@flowroute.com>
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# Based on yum module written by Seth Vidal <skvidal at fedoraproject.org>
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#
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# This module is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This software is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this software. If not, see <http://www.gnu.org/licenses/>.
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#
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DOCUMENTATION = '''
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---
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module: apt
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short_description: Manages apt-packages
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description:
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- Manages I(apt) packages (such as for Debian/Ubuntu).
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version_added: "0.0.2"
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options:
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pkg:
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description:
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- A package name or package specifier with version, like C(foo) or C(foo=1.0). Shell like wildcards (fnmatch) like apt* are also supported.
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required: false
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default: null
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state:
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description:
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- Indicates the desired package state
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required: false
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default: present
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choices: [ "latest", "absent", "present" ]
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update_cache:
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description:
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- Run the equivalent of C(apt-get update) before the operation. Can be run as part of the package installation or as a separate step
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required: false
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default: no
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choices: [ "yes", "no" ]
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cache_valid_time:
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description:
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- If C(update_cache) is specified and the last run is less or equal than I(cache_valid_time) seconds ago, the C(update_cache) gets skipped.
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required: false
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default: no
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purge:
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description:
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- Will force purging of configuration files if the module state is set to I(absent).
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required: false
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default: no
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choices: [ "yes", "no" ]
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default_release:
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description:
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- Corresponds to the C(-t) option for I(apt) and sets pin priorities
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required: false
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default: null
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install_recommends:
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description:
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- Corresponds to the C(--no-install-recommends) option for I(apt), default behavior works as apt's default behavior, C(no) does not install recommended packages. Suggested packages are never installed.
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required: false
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default: yes
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choices: [ "yes", "no" ]
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force:
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description:
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- If C(yes), force installs/removes.
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required: false
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default: "no"
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choices: [ "yes", "no" ]
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upgrade:
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description:
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- 'If yes or safe, performs an aptitude safe-upgrade.'
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- 'If full, performs an aptitude full-upgrade.'
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- 'If dist, performs an apt-get dist-upgrade.'
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- 'Note: This does not upgrade a specific package, use state=latest for that.'
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version_added: "1.1"
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required: false
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default: "yes"
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choices: [ "yes", "safe", "full", "dist"]
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dpkg_options:
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description:
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- Add dpkg options to apt command. Defaults to '-o "Dpkg::Options::=--force-confdef" -o "Dpkg::Options::=--force-confold"'
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- Options should be supplied as comma separated list
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required: false
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default: 'force-confdef,force-confold'
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requirements: [ python-apt, aptitude ]
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author: Matthew Williams
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notes:
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- Three of the upgrade modes (C(full), C(safe) and its alias C(yes)) require C(aptitude), otherwise
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C(apt-get) suffices.
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'''
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EXAMPLES = '''
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# Update repositories cache and install "foo" package
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- apt: pkg=foo update_cache=yes
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# Remove "foo" package
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- apt: pkg=foo state=absent
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# Install the package "foo"
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- apt: pkg=foo state=present
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# Install the version '1.00' of package "foo"
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- apt: pkg=foo=1.00 state=present
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# Update the repository cache and update package "nginx" to latest version using default release squeeze-backport
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- apt: pkg=nginx state=latest default_release=squeeze-backports update_cache=yes
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# Install latest version of "openjdk-6-jdk" ignoring "install-recommends"
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- apt: pkg=openjdk-6-jdk state=latest install_recommends=no
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# Update all packages to the latest version
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- apt: upgrade=dist
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# Run the equivalent of "apt-get update" as a separate step
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- apt: update_cache=yes
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# Only run "update_cache=yes" if the last one is more than more than 3600 seconds ago
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- apt: update_cache=yes cache_valid_time=3600
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# Pass options to dpkg on run
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- apt: upgrade=dist update_cache=yes dpkg_options='force-confold,force-confdef'
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'''
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import traceback
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# added to stave off future warnings about apt api
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import warnings
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warnings.filterwarnings('ignore', "apt API not stable yet", FutureWarning)
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import os
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import datetime
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import fnmatch
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# APT related constants
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APT_ENV_VARS = dict(
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DEBIAN_FRONTEND = 'noninteractive',
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DEBIAN_PRIORITY = 'critical'
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)
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DPKG_OPTIONS = 'force-confdef,force-confold'
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APT_GET_ZERO = "0 upgraded, 0 newly installed"
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APTITUDE_ZERO = "0 packages upgraded, 0 newly installed"
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APT_LISTS_PATH = "/var/lib/apt/lists"
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APT_UPDATE_SUCCESS_STAMP_PATH = "/var/lib/apt/periodic/update-success-stamp"
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HAS_PYTHON_APT = True
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try:
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import apt
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import apt_pkg
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except ImportError:
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HAS_PYTHON_APT = False
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def package_split(pkgspec):
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parts = pkgspec.split('=')
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if len(parts) > 1:
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return parts[0], parts[1]
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else:
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return parts[0], None
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def package_status(m, pkgname, version, cache, state):
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try:
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# get the package from the cache, as well as the
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# the low-level apt_pkg.Package object which contains
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# state fields not directly acccesible from the
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# higher-level apt.package.Package object.
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pkg = cache[pkgname]
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ll_pkg = cache._cache[pkgname] # the low-level package object
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except KeyError:
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if state == 'install':
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if cache.get_providing_packages(pkgname):
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return False, True, False
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m.fail_json(msg="No package matching '%s' is available" % pkgname)
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else:
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return False, False, False
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try:
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has_files = len(pkg.installed_files) > 0
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except UnicodeDecodeError:
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has_files = True
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except AttributeError:
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has_files = False # older python-apt cannot be used to determine non-purged
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try:
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package_is_installed = ll_pkg.current_state == apt_pkg.CURSTATE_INSTALLED
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except AttributeError: # python-apt 0.7.X has very weak low-level object
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try:
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# might not be necessary as python-apt post-0.7.X should have current_state property
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package_is_installed = pkg.is_installed
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except AttributeError:
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# assume older version of python-apt is installed
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package_is_installed = pkg.isInstalled
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if version and package_is_installed:
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try:
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installed_version = pkg.installed.version
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except AttributeError:
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installed_version = pkg.installedVersion
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return package_is_installed and fnmatch.fnmatch(installed_version, version), False, has_files
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else:
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try:
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package_is_upgradable = pkg.is_upgradable
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except AttributeError:
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# assume older version of python-apt is installed
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package_is_upgradable = pkg.isUpgradable
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return package_is_installed, package_is_upgradable, has_files
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def expand_dpkg_options(dpkg_options_compressed):
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options_list = dpkg_options_compressed.split(',')
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dpkg_options = ""
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for dpkg_option in options_list:
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dpkg_options = '%s -o "Dpkg::Options::=--%s"' \
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% (dpkg_options, dpkg_option)
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return dpkg_options.strip()
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def expand_pkgspec_from_fnmatches(m, pkgspec, cache):
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new_pkgspec = []
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for pkgname_or_fnmatch_pattern in pkgspec:
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# note that any of these chars is not allowed in a (debian) pkgname
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if [c for c in pkgname_or_fnmatch_pattern if c in "*?[]!"]:
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if "=" in pkgname_or_fnmatch_pattern:
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m.fail_json(msg="pkgname wildcard and version can not be mixed")
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# handle multiarch pkgnames, the idea is that "apt*" should
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# only select native packages. But "apt*:i386" should still work
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if not ":" in pkgname_or_fnmatch_pattern:
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matches = fnmatch.filter(
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[pkg.name for pkg in cache
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if not ":" in pkg.name], pkgname_or_fnmatch_pattern)
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else:
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matches = fnmatch.filter(
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[pkg.name for pkg in cache], pkgname_or_fnmatch_pattern)
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if len(matches) == 0:
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m.fail_json(msg="No package(s) matching '%s' available" % str(pkgname_or_fnmatch_pattern))
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else:
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new_pkgspec.extend(matches)
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else:
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new_pkgspec.append(pkgname_or_fnmatch_pattern)
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return new_pkgspec
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def install(m, pkgspec, cache, upgrade=False, default_release=None,
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install_recommends=True, force=False,
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dpkg_options=expand_dpkg_options(DPKG_OPTIONS)):
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packages = ""
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pkgspec = expand_pkgspec_from_fnmatches(m, pkgspec, cache)
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for package in pkgspec:
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name, version = package_split(package)
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installed, upgradable, has_files = package_status(m, name, version, cache, state='install')
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if not installed or (upgrade and upgradable):
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packages += "'%s' " % package
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if len(packages) != 0:
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if force:
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force_yes = '--force-yes'
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else:
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force_yes = ''
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if m.check_mode:
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check_arg = '--simulate'
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else:
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check_arg = ''
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for (k,v) in APT_ENV_VARS.iteritems():
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os.environ[k] = v
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cmd = "%s -y %s %s %s install %s" % (APT_GET_CMD, dpkg_options, force_yes, check_arg, packages)
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if default_release:
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cmd += " -t '%s'" % (default_release,)
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if not install_recommends:
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cmd += " --no-install-recommends"
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rc, out, err = m.run_command(cmd)
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if rc:
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m.fail_json(msg="'apt-get install %s' failed: %s" % (packages, err), stdout=out, stderr=err)
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else:
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m.exit_json(changed=True, stdout=out, stderr=err)
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else:
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m.exit_json(changed=False)
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def remove(m, pkgspec, cache, purge=False,
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dpkg_options=expand_dpkg_options(DPKG_OPTIONS)):
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packages = ""
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pkgspec = expand_pkgspec_from_fnmatches(m, pkgspec, cache)
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for package in pkgspec:
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name, version = package_split(package)
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installed, upgradable, has_files = package_status(m, name, version, cache, state='remove')
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if installed or (has_files and purge):
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packages += "'%s' " % package
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if len(packages) == 0:
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m.exit_json(changed=False)
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else:
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if purge:
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purge = '--purge'
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else:
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purge = ''
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for (k,v) in APT_ENV_VARS.iteritems():
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os.environ[k] = v
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cmd = "%s -q -y %s %s remove %s" % (APT_GET_CMD, dpkg_options, purge, packages)
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if m.check_mode:
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m.exit_json(changed=True)
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rc, out, err = m.run_command(cmd)
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if rc:
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m.fail_json(msg="'apt-get remove %s' failed: %s" % (packages, err), stdout=out, stderr=err)
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m.exit_json(changed=True, stdout=out, stderr=err)
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def upgrade(m, mode="yes", force=False,
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dpkg_options=expand_dpkg_options(DPKG_OPTIONS)):
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if m.check_mode:
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check_arg = '--simulate'
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else:
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check_arg = ''
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apt_cmd = None
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if mode == "dist":
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# apt-get dist-upgrade
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apt_cmd = APT_GET_CMD
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upgrade_command = "dist-upgrade"
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elif mode == "full":
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# aptitude full-upgrade
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apt_cmd = APTITUDE_CMD
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upgrade_command = "full-upgrade"
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else:
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# aptitude safe-upgrade # mode=yes # default
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apt_cmd = APTITUDE_CMD
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upgrade_command = "safe-upgrade"
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if force:
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if apt_cmd == APT_GET_CMD:
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force_yes = '--force-yes'
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else:
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force_yes = ''
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else:
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force_yes = ''
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apt_cmd_path = m.get_bin_path(apt_cmd, required=True)
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for (k,v) in APT_ENV_VARS.iteritems():
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os.environ[k] = v
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cmd = '%s -y %s %s %s %s' % (apt_cmd_path, dpkg_options,
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force_yes, check_arg, upgrade_command)
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rc, out, err = m.run_command(cmd)
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if rc:
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m.fail_json(msg="'%s %s' failed: %s" % (apt_cmd, upgrade_command, err), stdout=out)
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if (apt_cmd == APT_GET_CMD and APT_GET_ZERO in out) or (apt_cmd == APTITUDE_CMD and APTITUDE_ZERO in out):
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m.exit_json(changed=False, msg=out, stdout=out, stderr=err)
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m.exit_json(changed=True, msg=out, stdout=out, stderr=err)
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def main():
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module = AnsibleModule(
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argument_spec = dict(
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state = dict(default='installed', choices=['installed', 'latest', 'removed', 'absent', 'present']),
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update_cache = dict(default=False, aliases=['update-cache'], type='bool'),
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cache_valid_time = dict(type='int'),
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purge = dict(default=False, type='bool'),
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package = dict(default=None, aliases=['pkg', 'name']),
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default_release = dict(default=None, aliases=['default-release']),
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install_recommends = dict(default='yes', aliases=['install-recommends'], type='bool'),
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force = dict(default='no', type='bool'),
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upgrade = dict(choices=['yes', 'safe', 'full', 'dist']),
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dpkg_options = dict(default=DPKG_OPTIONS)
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),
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mutually_exclusive = [['package', 'upgrade']],
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required_one_of = [['package', 'upgrade', 'update_cache']],
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supports_check_mode = True
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)
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if not HAS_PYTHON_APT:
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try:
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module.run_command('apt-get update && apt-get install python-apt -y -q')
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global apt, apt_pkg
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import apt
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import apt_pkg
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except:
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module.fail_json(msg="Could not import python modules: apt, apt_pkg. Please install python-apt package.")
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global APTITUDE_CMD
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APTITUDE_CMD = module.get_bin_path("aptitude", False)
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global APT_GET_CMD
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APT_GET_CMD = module.get_bin_path("apt-get")
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p = module.params
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if not APTITUDE_CMD and p.get('upgrade', None) in [ 'full', 'safe', 'yes' ]:
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module.fail_json(msg="Could not find aptitude. Please ensure it is installed.")
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install_recommends = p['install_recommends']
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dpkg_options = expand_dpkg_options(p['dpkg_options'])
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try:
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cache = apt.Cache()
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if p['default_release']:
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try:
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apt_pkg.config['APT::Default-Release'] = p['default_release']
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except AttributeError:
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apt_pkg.Config['APT::Default-Release'] = p['default_release']
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# reopen cache w/ modified config
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cache.open(progress=None)
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if p['update_cache']:
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# Default is: always update the cache
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cache_valid = False
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if p['cache_valid_time']:
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tdelta = datetime.timedelta(seconds=p['cache_valid_time'])
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try:
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mtime = os.stat(APT_UPDATE_SUCCESS_STAMP_PATH).st_mtime
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except:
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mtime = False
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if mtime is False:
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# Looks like the update-success-stamp is not available
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# Fallback: Checking the mtime of the lists
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try:
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mtime = os.stat(APT_LISTS_PATH).st_mtime
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except:
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mtime = False
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if mtime is False:
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# No mtime could be read - looks like lists are not there
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# We update the cache to be safe
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cache_valid = False
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else:
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mtimestamp = datetime.datetime.fromtimestamp(mtime)
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if mtimestamp + tdelta >= datetime.datetime.now():
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# dont update the cache
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# the old cache is less than cache_valid_time seconds old - so still valid
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cache_valid = True
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if cache_valid is not True:
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cache.update()
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cache.open(progress=None)
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if not p['package'] and not p['upgrade']:
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module.exit_json(changed=False)
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force_yes = p['force']
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if p['upgrade']:
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upgrade(module, p['upgrade'], force_yes, dpkg_options)
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packages = p['package'].split(',')
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latest = p['state'] == 'latest'
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for package in packages:
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if package.count('=') > 1:
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module.fail_json(msg="invalid package spec: %s" % package)
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if latest and '=' in package:
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module.fail_json(msg='version number inconsistent with state=latest: %s' % package)
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if p['state'] == 'latest':
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install(module, packages, cache, upgrade=True,
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default_release=p['default_release'],
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install_recommends=install_recommends,
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force=force_yes, dpkg_options=dpkg_options)
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elif p['state'] in [ 'installed', 'present' ]:
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install(module, packages, cache, default_release=p['default_release'],
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install_recommends=install_recommends,force=force_yes,
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dpkg_options=dpkg_options)
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elif p['state'] in [ 'removed', 'absent' ]:
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remove(module, packages, cache, p['purge'], dpkg_options)
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except apt.cache.LockFailedException:
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module.fail_json(msg="Failed to lock apt for exclusive operation")
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# import module snippets
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from ansible.module_utils.basic import *
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main()
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