210 lines
6.6 KiB
Python
Executable file
210 lines
6.6 KiB
Python
Executable file
#!/usr/bin/python -tt
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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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try:
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import json
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except ImportError:
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import simplejson as json
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import os
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import sys
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import shlex
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import subprocess
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import syslog
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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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APT_PATH = "/usr/bin/apt-get"
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APT = "DEBIAN_PRIORITY=critical %s" % APT_PATH
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def exit_json(rc=0, **kwargs):
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print json.dumps(kwargs)
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sys.exit(rc)
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def fail_json(**kwargs):
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kwargs['failed'] = True
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exit_json(rc=1, **kwargs)
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try:
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import apt, apt_pkg
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except ImportError:
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fail_json(msg="could not import apt, please install the python-apt package on this host")
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def run_apt(command):
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try:
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cmd = subprocess.Popen(command, shell=True,
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = cmd.communicate()
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except (OSError, IOError), e:
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rc = 1
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err = str(e)
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out = ''
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except:
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rc = 1
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err = traceback.format_exc()
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out = ''
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else:
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rc = cmd.returncode
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return rc, out, err
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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(pkgname, version, cache):
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try:
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pkg = cache[pkgname]
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except KeyError:
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fail_json(msg="No package matching '%s' is available" % pkgname)
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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(pkgspec, cache, upgrade=False, default_release=None, install_recommends=True, force=False):
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name, version = package_split(pkgspec)
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installed, upgradable = package_status(name, version, cache)
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if not installed or (upgrade and upgradable):
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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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cmd = "%s --option Dpkg::Options::=--force-confold -q -y %s install '%s'" % (APT, force_yes, pkgspec)
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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 = run_apt(cmd)
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if rc:
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fail_json(msg="'apt-get install %s' failed: %s" % (pkgspec, err))
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return True
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else:
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return False
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def remove(pkgspec, cache, purge=False):
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name, version = package_split(pkgspec)
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installed, upgradable = package_status(name, version, cache)
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if not installed:
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return False
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else:
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purge = '--purge' if purge else ''
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cmd = "%s -q -y %s remove '%s'" % (APT, purge, name)
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rc, out, err = run_apt(cmd)
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if rc:
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fail_json(msg="'apt-get remove %s' failed: %s" % (name, err))
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return True
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# ===========================================
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if not os.path.exists(APT_PATH):
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fail_json(msg="Cannot find apt-get")
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argfile = sys.argv[1]
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args = open(argfile, 'r').read()
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items = shlex.split(args)
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syslog.openlog('ansible-%s' % os.path.basename(__file__))
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syslog.syslog(syslog.LOG_NOTICE, 'Invoked with %s' % args)
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if not len(items):
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fail_json(msg='the module requires arguments -a')
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sys.exit(1)
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params = {}
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for x in items:
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(k, v) = x.split("=", 1)
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params[k] = v
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state = params.get('state', 'installed')
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package = params.get('pkg', params.get('package', params.get('name', None)))
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update_cache = params.get('update-cache', 'no')
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purge = params.get('purge', 'no')
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default_release = params.get('default-release', None)
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install_recommends = params.get('install-recommends', 'yes')
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force = params.get('force', 'no')
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if state not in ['installed', 'latest', 'removed']:
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fail_json(msg='invalid state')
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if update_cache not in ['yes', 'no']:
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fail_json(msg='invalid value for update_cache (requires yes or no -- default is no')
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if purge not in ['yes', 'no']:
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fail_json(msg='invalid value for purge (requires yes or no -- default is no)')
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if force not in ['yes', 'no']:
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fail_json(msg='invalid option for force (requires yes or no -- default is no)')
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if package is None and update_cache != 'yes':
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fail_json(msg='pkg=name and/or update-cache=yes is required')
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if install_recommends not in ['yes', 'no']:
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fail_json(msg='invalid value for install-recommends (requires yes or no -- default is yes)')
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install_recommends = (install_recommends == 'yes')
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cache = apt.Cache()
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if default_release:
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apt_pkg.config['APT::Default-Release'] = default_release
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# reopen cache w/ modified config
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cache.open(progress=None)
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if update_cache == 'yes':
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cache.update()
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cache.open(progress=None)
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if package == None:
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exit_json(changed=False)
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if force == 'yes':
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force_yes = True
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else:
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force_yes = False
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if package.count('=') > 1:
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fail_json(msg='invalid package spec')
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if state == 'latest':
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if '=' in package:
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fail_json(msg='version number inconsistent with state=latest')
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changed = install(package, cache, upgrade=True,
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default_release=default_release,
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install_recommends=install_recommends,
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force=force_yes)
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elif state == 'installed':
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changed = install(package, cache, default_release=default_release,
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install_recommends=install_recommends,force=force_yes)
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elif state == 'removed':
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changed = remove(package, cache, purge == 'yes')
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exit_json(changed=changed)
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