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149 lines
4.1 KiB
Python
Executable file
149 lines
4.1 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 traceback
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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 debug(msg):
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print >>sys.stderr, msg
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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
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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_status(pkgspec, cache):
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try:
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pkg = cache[pkgspec]
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except:
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fail_json(msg="No package matching '%s' is available" % pkgspec)
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return (pkg.is_installed, pkg.is_upgradable)
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def install(pkgspec, cache, upgrade=False):
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(installed, upgradable) = package_status(pkgspec, cache)
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if (not installed) or (upgrade and upgradable):
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cmd = "%s -q -y install '%s'" % (APT, pkgspec)
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rc, out, err = run_apt(cmd)
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if rc:
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json_fail(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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(installed, upgradable) = package_status(pkgspec, 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, pkgspec)
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rc, out, err = run_apt(cmd)
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if rc:
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json_fail(msg="'apt-get remove %s' failed: %s" % (pkgspec, 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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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("=")
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params[k] = v
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state = params.get('state','installed')
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package = params.get('pkg', 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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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 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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cache = apt.Cache()
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if update_cache == 'yes':
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cache.update()
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cache.open()
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if package == None:
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exit_json(changed=False)
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if state == 'latest':
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changed = install(package, cache, upgrade=True)
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elif state == 'installed':
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changed = install(package, cache)
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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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