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ansible/library/apt
Blair Zajac 811c711328 library/apt: consistently use underscores in examples. 
To be consistent with the table showing available options, use
underscores in the example tasks, not hyphens, as the table doesn't
list hyphenated versions of option names, so it looks like the
examples could have typos in them.
2013-01-26 10:25:08 -08:00

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#!/usr/bin/python -tt
# -*- coding: utf-8 -*-
# (c) 2012, Flowroute LLC
# Written by Matthew Williams <matthew@flowroute.com>
# Based on yum module written by Seth Vidal <skvidal at fedoraproject.org>
#
# This module is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This software is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this software. If not, see <http://www.gnu.org/licenses/>.
#
DOCUMENTATION = '''
---
module: apt
short_description: Manages apt-packages
description:
- Manages I(apt) packages (such as for Debian/Ubuntu).
version_added: "0.0.2"
options:
pkg:
description:
- A package name or package specifier with version, like C(foo) or C(foo=1.0)
required: true
default: null
state:
description:
- Indicates the desired package state
required: false
default: present
choices: [ "latest", "absent", "present" ]
update_cache:
description:
- 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
required: false
default: "no"
choices: [ "yes", "no" ]
purge:
description:
- Will force purging of configuration files if the module state is set to I(absent).
required: false
default: "no"
choices: [ "yes", "no" ]
default_release:
description:
- Corresponds to the C(-t) option for I(apt) and sets pin priorities
required: false
default: null
install_recommends:
description:
- 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.
required: false
default: "no"
choices: [ "yes", "no" ]
force:
description:
- If C(yes), force installs/removes.
required: false
default: "no"
choices: [ "yes", "no" ]
author: Matthew Williams
notes: []
examples:
- code: "apt: pkg=foo update_cache=yes"
description: Update repositories cache and install C(foo) package
- code: "apt: pkg=foo state=removed"
description: Remove C(foo) package
- code: "apt: pkg=foo state=installed"
description: Install the package C(foo)
- code: "apt: pkg=foo=1.00 state=installed"
description: Install the version '1.00' of package C(foo)
- code: "apt: pkg=nginx state=latest default_release=squeeze-backports update_cache=yes"
description: Update the repository cache and update package C(ngnix) to latest version using default release C(squeeze-backport)
- code: "apt: pkg=openjdk-6-jdk state=latest install_recommends=no"
description: Install latest version of C(openjdk-6-jdk) ignoring C(install-reccomends)
'''
import traceback
# added to stave off future warnings about apt api
import warnings
warnings.filterwarnings('ignore', "apt API not stable yet", FutureWarning)
# APT related constants
APT_PATH = "/usr/bin/apt-get"
APT = "DEBIAN_FRONTEND=noninteractive DEBIAN_PRIORITY=critical %s" % APT_PATH
def run_apt(command):
try:
cmd = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = cmd.communicate()
except (OSError, IOError), e:
rc = 1
err = str(e)
out = ''
except:
rc = 1
err = traceback.format_exc()
out = ''
else:
rc = cmd.returncode
return rc, out, err
def package_split(pkgspec):
parts = pkgspec.split('=')
if len(parts) > 1:
return parts[0], parts[1]
else:
return parts[0], None
def package_status(m, pkgname, version, cache):
try:
pkg = cache[pkgname]
except KeyError:
m.fail_json(msg="No package matching '%s' is available" % pkgname)
if version:
try :
return pkg.is_installed and pkg.installed.version == version, False
except AttributeError:
#assume older version of python-apt is installed
return pkg.isInstalled and pkg.installedVersion == version, False
else:
try :
return pkg.is_installed, pkg.is_upgradable
except AttributeError:
#assume older version of python-apt is installed
return pkg.isInstalled, pkg.isUpgradable
def install(m, pkgspec, cache, upgrade=False, default_release=None, install_recommends=True, force=False):
packages = ""
for package in pkgspec:
name, version = package_split(package)
installed, upgradable = package_status(m, name, version, cache)
if not installed or (upgrade and upgradable):
packages += "'%s' " % package
if len(packages) != 0:
if force:
force_yes = '--force-yes'
else:
force_yes = ''
cmd = "%s --option Dpkg::Options::=--force-confold -q -y %s install %s" % (APT, force_yes,packages)
if default_release:
cmd += " -t '%s'" % (default_release,)
if not install_recommends:
cmd += " --no-install-recommends"
rc, out, err = run_apt(cmd)
if rc:
m.fail_json(msg="'apt-get install %s' failed: %s" % (packages, err))
else:
m.exit_json(changed=True)
else:
m.exit_json(changed=False)
def remove(m, pkgspec, cache, purge=False):
packages = ""
for package in pkgspec:
name, version = package_split(package)
installed, upgradable = package_status(m, name, version, cache)
if installed:
packages += "'%s' " % package
if len(packages) == 0:
m.exit_json(changed=False)
else:
purge = '--purge' if purge else ''
cmd = "%s -q -y %s remove %s" % (APT, purge,packages)
rc, out, err = run_apt(cmd)
if rc:
m.fail_json(msg="'apt-get remove %s' failed: %s" % (packages, err))
m.exit_json(changed=True)
def main():
module = AnsibleModule(
argument_spec = dict(
state = dict(default='installed', choices=['installed', 'latest', 'removed', 'absent', 'present']),
update_cache = dict(default='no', choices=['yes', 'no'], aliases=['update-cache']),
purge = dict(default='no', choices=['yes', 'no']),
package = dict(default=None, aliases=['pkg', 'name']),
default_release = dict(default=None, aliases=['default-release']),
install_recommends = dict(default='yes', aliases=['install-recommends'], choices=['yes', 'no']),
force = dict(default='no', choices=['yes', 'no'])
)
)
try:
import apt
import apt_pkg
except:
module.fail_json(msg="Could not import python modules: apt, apt_pkg. Please install python-apt package.")
if not os.path.exists(APT_PATH):
module.fail_json(msg="Cannot find apt-get")
p = module.params
if p['package'] is None and p['update_cache'] != 'yes':
module.fail_json(msg='pkg=name and/or update_cache=yes is required')
install_recommends = module.boolean(p['install_recommends'])
cache = apt.Cache()
if p['default_release']:
apt_pkg.config['APT::Default-Release'] = p['default_release']
# reopen cache w/ modified config
cache.open(progress=None)
if module.boolean(p['update_cache']):
cache.update()
cache.open(progress=None)
if p['package'] == None:
module.exit_json(changed=False)
force_yes = module.boolean(p['force'])
packages = p['package'].split(',')
latest = p['state'] == 'latest'
for package in packages:
if package.count('=') > 1:
module.fail_json(msg="invalid package spec: %s" % package)
if latest and '=' in package:
module.fail_json(msg='version number inconsistent with state=latest: %s' % package)
if p['state'] == 'latest':
install(module, packages, cache, upgrade=True,
default_release=p['default_release'],
install_recommends=install_recommends,
force=force_yes)
elif p['state'] in [ 'installed', 'present' ]:
install(module, packages, cache, default_release=p['default_release'],
install_recommends=install_recommends,force=force_yes)
elif p['state'] in [ 'removed', 'absent' ]:
remove(module, packages, cache, purge = module.boolean(p['purge']))
# this is magic, see lib/ansible/module_common.py
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
main()
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