263 lines
8.4 KiB
Python
263 lines
8.4 KiB
Python
#!/usr/bin/python -tt
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# -*- coding: utf-8 -*-
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# (c) 2012, Afterburn <http://github.com/afterburn>
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# (c) 2013, Aaron Bull Schaefer <aaron@elasticdog.com>
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#
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# This file is part of Ansible
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#
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# 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
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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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# 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
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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 Ansible. If not, see <http://www.gnu.org/licenses/>.
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DOCUMENTATION = '''
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---
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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
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Arch Linux and its variants.
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version_added: "1.0"
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author:
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- "'Aaron Bull Schaefer (@elasticdog)' <aaron@elasticdog.com>"
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- "Afterburn"
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notes: []
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requirements: []
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options:
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name:
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description:
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- Name of the package to install, upgrade, or remove.
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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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- Desired state of the package.
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required: false
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default: "present"
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choices: ["present", "absent", "latest"]
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recurse:
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description:
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- When removing a package, also remove its dependencies, provided
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that they are not required by other packages and were not
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explicitly installed by a user.
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required: false
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default: "no"
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choices: ["yes", "no"]
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version_added: "1.3"
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update_cache:
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description:
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- Whether or not to refresh the master package lists. This can be
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run as part of a 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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'''
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EXAMPLES = '''
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# Install package foo
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- pacman: name=foo state=present
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# Upgrade package foo
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- pacman: name=foo state=latest update_cache=yes
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# Remove packages foo and bar
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- pacman: name=foo,bar state=absent
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# Recursively remove package baz
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- pacman: name=baz state=absent recurse=yes
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# Run the equivalent of "pacman -Syy" as a separate step
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- pacman: update_cache=yes
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'''
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import json
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import shlex
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import os
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import re
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import sys
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PACMAN_PATH = "/usr/bin/pacman"
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def get_version(pacman_output):
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"""Take pacman -Qi or pacman -Si output and get the Version"""
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lines = pacman_output.split('\n')
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for line in lines:
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if 'Version' in line:
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return line.split(':')[1].strip()
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return None
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def query_package(module, name, state="present"):
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"""Query the package status in both the local system and the repository. Returns a boolean to indicate if the package is installed, and a second boolean to indicate if the package is up-to-date."""
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if state == "present":
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lcmd = "pacman -Qi %s" % (name)
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lrc, lstdout, lstderr = module.run_command(lcmd, check_rc=False)
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if lrc != 0:
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# package is not installed locally
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return False, False
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# get the version installed locally (if any)
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lversion = get_version(lstdout)
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rcmd = "pacman -Si %s" % (name)
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rrc, rstdout, rstderr = module.run_command(rcmd, check_rc=False)
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# get the version in the repository
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rversion = get_version(rstdout)
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if rrc == 0:
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# Return True to indicate that the package is installed locally, and the result of the version number comparison
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# to determine if the package is up-to-date.
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return True, (lversion == rversion)
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return False, False
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def update_package_db(module):
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cmd = "pacman -Syy"
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rc, stdout, stderr = module.run_command(cmd, check_rc=False)
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if rc == 0:
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return True
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else:
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module.fail_json(msg="could not update package db")
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def remove_packages(module, packages):
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if module.params["recurse"]:
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args = "Rs"
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else:
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args = "R"
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remove_c = 0
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# Using a for loop incase of error, we can report the package that failed
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for package in packages:
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# Query the package first, to see if we even need to remove
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installed, updated = query_package(module, package)
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if not installed:
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continue
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cmd = "pacman -%s %s --noconfirm" % (args, package)
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rc, stdout, stderr = module.run_command(cmd, check_rc=False)
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if rc != 0:
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module.fail_json(msg="failed to remove %s" % (package))
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remove_c += 1
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if remove_c > 0:
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module.exit_json(changed=True, msg="removed %s package(s)" % remove_c)
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module.exit_json(changed=False, msg="package(s) already absent")
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def install_packages(module, state, packages, package_files):
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install_c = 0
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for i, package in enumerate(packages):
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# if the package is installed and state == present or state == latest and is up-to-date then skip
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installed, updated = query_package(module, package)
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if installed and (state == 'present' or (state == 'latest' and updated)):
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continue
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if package_files[i]:
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params = '-U %s' % package_files[i]
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else:
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params = '-S %s' % package
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cmd = "pacman %s --noconfirm" % (params)
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rc, stdout, stderr = module.run_command(cmd, check_rc=False)
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if rc != 0:
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module.fail_json(msg="failed to install %s" % (package))
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install_c += 1
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if install_c > 0:
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module.exit_json(changed=True, msg="installed %s package(s)" % (install_c))
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module.exit_json(changed=False, msg="package(s) already installed")
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def check_packages(module, packages, state):
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would_be_changed = []
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for package in packages:
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installed, updated = query_package(module, package)
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if ((state in ["present", "latest"] and not installed) or
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(state == "absent" and installed) or
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(state == "latest" and not updated)):
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would_be_changed.append(package)
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if would_be_changed:
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if state == "absent":
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state = "removed"
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module.exit_json(changed=True, msg="%s package(s) would be %s" % (
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len(would_be_changed), state))
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else:
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module.exit_json(change=False, msg="package(s) already %s" % state)
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def main():
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module = AnsibleModule(
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argument_spec = dict(
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name = dict(aliases=['pkg']),
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state = dict(default='present', choices=['present', 'installed', "latest", 'absent', 'removed']),
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recurse = dict(default='no', choices=BOOLEANS, type='bool'),
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update_cache = dict(default='no', aliases=['update-cache'], choices=BOOLEANS, type='bool')),
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required_one_of = [['name', 'update_cache']],
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supports_check_mode = True)
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if not os.path.exists(PACMAN_PATH):
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module.fail_json(msg="cannot find pacman, looking for %s" % (PACMAN_PATH))
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p = module.params
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# normalize the state parameter
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if p['state'] in ['present', 'installed']:
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p['state'] = 'present'
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elif p['state'] in ['absent', 'removed']:
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p['state'] = 'absent'
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if p["update_cache"] and not module.check_mode:
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update_package_db(module)
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if not p['name']:
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module.exit_json(changed=True, msg='updated the package master lists')
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if p['update_cache'] and module.check_mode and not p['name']:
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module.exit_json(changed=True, msg='Would have updated the package cache')
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if p['name']:
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pkgs = p['name'].split(',')
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pkg_files = []
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for i, pkg in enumerate(pkgs):
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if pkg.endswith('.pkg.tar.xz'):
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# The package given is a filename, extract the raw pkg name from
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# it and store the filename
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pkg_files.append(pkg)
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pkgs[i] = re.sub('-[0-9].*$', '', pkgs[i].split('/')[-1])
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else:
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pkg_files.append(None)
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if module.check_mode:
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check_packages(module, pkgs, p['state'])
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if p['state'] in ['present', 'latest']:
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install_packages(module, p['state'], pkgs, pkg_files)
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elif p['state'] == 'absent':
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remove_packages(module, pkgs)
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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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