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340 lines
13 KiB
Python
340 lines
13 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)
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required: true
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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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author: Matthew Williams
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notes: []
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examples:
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- code: "apt: pkg=foo update_cache=yes"
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description: Update repositories cache and install C(foo) package
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- code: "apt: pkg=foo state=removed"
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description: Remove C(foo) package
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- code: "apt: pkg=foo state=installed"
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description: Install the package C(foo)
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- code: "apt: pkg=foo=1.00 state=installed"
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description: Install the version '1.00' of package C(foo)
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- code: "apt: pkg=nginx state=latest default_release=squeeze-backports update_cache=yes"
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description: Update the repository cache and update package C(ngnix) to latest version using default release C(squeeze-backport)
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- code: "apt: pkg=openjdk-6-jdk state=latest install_recommends=no"
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description: Install latest version of C(openjdk-6-jdk) ignoring C(install-reccomends)
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- code: "apt: upgrade=dist"
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description: Update all packages to the latest version
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- code: "apt: update_cache=yes"
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description: Run the equivalent of C(apt-get update) as a separate step
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- code: "apt: update_cache=yes cache_valid_time=3600"
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description: Only run C(update_cache=yes) if the last one is more than more than 3600 seconds ago
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requirements: [ python-apt, aptitude ]
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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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# APT related constants
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APTITUDE_CMD = "aptitude"
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APT_GET_CMD = "apt-get"
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APT_ENVVARS = "DEBIAN_FRONTEND=noninteractive DEBIAN_PRIORITY=critical"
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DPKG_OPTIONS = '-o "Dpkg::Options::=--force-confdef" -o "Dpkg::Options::=--force-confold"'
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APT_GET_ZERO = "0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded."
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APTITUDE_ZERO = "0 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded."
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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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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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pkg = cache[pkgname]
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except KeyError:
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if state == 'install':
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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
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if version:
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try :
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return pkg.is_installed and pkg.installed.version == version, False
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except AttributeError:
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#assume older version of python-apt is installed
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return pkg.isInstalled and pkg.installedVersion == version, False
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else:
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try :
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return pkg.is_installed, 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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return pkg.isInstalled, pkg.isUpgradable
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def install(m, pkgspec, cache, upgrade=False, default_release=None, install_recommends=True, force=False):
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packages = ""
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for package in pkgspec:
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name, version = package_split(package)
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installed, upgradable = 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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cmd = "%s %s -y %s %s %s install %s" % (APT_ENVVARS, 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))
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else:
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m.exit_json(changed=True)
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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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packages = ""
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for package in pkgspec:
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name, version = package_split(package)
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installed, upgradable = package_status(m, name, version, cache, state='remove')
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if installed:
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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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purge = ''
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if purge:
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purge = '--purge'
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cmd = "%s -q -y %s remove %s" % (APT_GET_CMD, 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))
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m.exit_json(changed=True)
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def upgrade(m, mode="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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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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apt_cmd_path = m.get_bin_path(apt_cmd, required=True)
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cmd = '%s %s -y %s %s %s' % (APT_ENVVARS, apt_cmd_path, DPKG_OPTIONS,
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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))
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m.fail_json(msg="'aptitude safe-upgrade' failed: %s" % err)
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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)
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m.exit_json(changed=True, msg=out)
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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(aliases=['update-cache'], type='bool'),
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cache_valid_time = dict(type='int'),
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purge = dict(default='no', 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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),
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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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try:
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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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p = module.params
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install_recommends = p['install_recommends']
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try:
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cache = apt.Cache()
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if p['default_release']:
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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'])
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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)
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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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elif p['state'] in [ 'removed', 'absent' ]:
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remove(module, packages, cache, p['purge'])
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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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# this is magic, see lib/ansible/module_common.py
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#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
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main()
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