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ansible/library/packaging/pacman

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#!/usr/bin/python -tt
# -*- coding: utf-8 -*-
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# (c) 2012, Afterburn <http://github.com/afterburn>
# (c) 2013, Aaron Bull Schaefer <aaron@elasticdog.com>
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#
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# This file is part of Ansible
#
# Ansible 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
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
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# Ansible is distributed in the hope that it will be useful,
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# 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
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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DOCUMENTATION = '''
---
module: pacman
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short_description: Manage packages with I(pacman)
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description:
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- Manage packages with the I(pacman) package manager, which is used by
Arch Linux and its variants.
version_added: "1.0"
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author: Afterburn
notes: []
requirements: []
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options:
name:
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description:
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- Name of the package to install, upgrade, or remove.
required: false
default: null
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state:
description:
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- Desired state of the package.
required: false
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default: "present"
choices: ["present", "absent"]
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recurse:
description:
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- When removing a package, also remove its dependencies, provided
that they are not required by other packages and were not
explicitly installed by a user.
required: false
default: "no"
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choices: ["yes", "no"]
version_added: "1.3"
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update_cache:
description:
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- Whether or not to refresh the master package lists. This can be
run as part of a package installation or as a separate step.
required: false
default: "no"
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choices: ["yes", "no"]
'''
EXAMPLES = '''
# Install package foo
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- pacman: name=foo state=present
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# Remove packages foo and bar
- pacman: name=foo,bar state=absent
# Recursively remove package baz
- pacman: name=baz state=absent recurse=yes
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# Run the equivalent of "pacman -Syy" as a separate step
- pacman: update_cache=yes
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'''
import json
import shlex
import os
import re
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import sys
PACMAN_PATH = "/usr/bin/pacman"
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def query_package(module, name, state="present"):
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# pacman -Q returns 0 if the package is installed,
# 1 if it is not installed
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if state == "present":
cmd = "pacman -Q %s" % (name)
rc, stdout, stderr = module.run_command(cmd, check_rc=False)
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if rc == 0:
return True
return False
def update_package_db(module):
cmd = "pacman -Syy"
rc, stdout, stderr = module.run_command(cmd, check_rc=False)
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if rc == 0:
return True
else:
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module.fail_json(msg="could not update package db")
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def remove_packages(module, packages):
if module.params["recurse"]:
args = "Rs"
else:
args = "R"
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remove_c = 0
# Using a for loop incase of error, we can report the package that failed
for package in packages:
# Query the package first, to see if we even need to remove
if not query_package(module, package):
continue
cmd = "pacman -%s %s --noconfirm" % (args, package)
rc, stdout, stderr = module.run_command(cmd, check_rc=False)
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if rc != 0:
module.fail_json(msg="failed to remove %s" % (package))
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remove_c += 1
if remove_c > 0:
module.exit_json(changed=True, msg="removed %s package(s)" % remove_c)
module.exit_json(changed=False, msg="package(s) already absent")
def install_packages(module, packages, package_files):
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install_c = 0
for i, package in enumerate(packages):
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if query_package(module, package):
continue
if package_files[i]:
params = '-U %s' % package_files[i]
else:
params = '-S %s' % package
cmd = "pacman %s --noconfirm" % (params)
rc, stdout, stderr = module.run_command(cmd, check_rc=False)
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if rc != 0:
module.fail_json(msg="failed to install %s" % (package))
install_c += 1
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if install_c > 0:
module.exit_json(changed=True, msg="installed %s package(s)" % (install_c))
module.exit_json(changed=False, msg="package(s) already installed")
def check_packages(module, packages, state):
would_be_changed = []
for package in packages:
installed = query_package(module, package)
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if ((state == "present" and not installed) or
(state == "absent" and installed)):
would_be_changed.append(package)
if would_be_changed:
if state == "absent":
state = "removed"
module.exit_json(changed=True, msg="%s package(s) would be %s" % (
len(would_be_changed), state))
else:
module.exit_json(change=False, msg="package(s) already %s" % state)
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def main():
module = AnsibleModule(
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argument_spec = dict(
name = dict(aliases=['pkg']),
state = dict(default='present', choices=['present', 'installed', 'absent', 'removed']),
recurse = dict(default='no', choices=BOOLEANS, type='bool'),
update_cache = dict(default='no', aliases=['update-cache'], choices=BOOLEANS, type='bool')),
required_one_of = [['name', 'update_cache']],
supports_check_mode = True)
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if not os.path.exists(PACMAN_PATH):
module.fail_json(msg="cannot find pacman, looking for %s" % (PACMAN_PATH))
p = module.params
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# normalize the state parameter
if p['state'] in ['present', 'installed']:
p['state'] = 'present'
elif p['state'] in ['absent', 'removed']:
p['state'] = 'absent'
if p["update_cache"] and not module.check_mode:
update_package_db(module)
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if not p['name']:
module.exit_json(changed=True, msg='updated the package master lists')
if p['name']:
pkgs = p['name'].split(',')
pkg_files = []
for i, pkg in enumerate(pkgs):
if pkg.endswith('.pkg.tar.xz'):
# The package given is a filename, extract the raw pkg name from
# it and store the filename
pkg_files.append(pkg)
pkgs[i] = re.sub('-[0-9].*$', '', pkgs[i].split('/')[-1])
else:
pkg_files.append(None)
if module.check_mode:
check_packages(module, pkgs, p['state'])
if p['state'] == 'present':
install_packages(module, pkgs, pkg_files)
elif p['state'] == 'absent':
remove_packages(module, pkgs)
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# import module snippets
from ansible.module_utils.basic import *
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main()