344 lines
9.6 KiB
Python
Executable file
344 lines
9.6 KiB
Python
Executable file
#!/usr/bin/python -tt
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# (c) 2012, Red Hat, Inc
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# Written by Seth Vidal <skvidal at fedoraproject.org>
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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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#
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import os
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import sys
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import yum
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import subprocess
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import datetime
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import shlex
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import re
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import traceback
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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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def yum_base(conf_file=None, cachedir=False):
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my = yum.YumBase()
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my.preconf.debuglevel=0
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if conf_file and os.path.exists(conf_file):
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my.preconf.fn = conf_file
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if cachedir:
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if hasattr(my, 'setCacheDir'):
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my.setCacheDir()
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else:
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cachedir = yum.misc.getCacheDir()
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my.repos.setCacheDir(cachedir)
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my.conf.cache = 0
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return my
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def pkg_to_dict(po):
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d = {
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'name':po.name,
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'arch':po.arch,
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'epoch':po.epoch,
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'release':po.release,
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'version':po.version,
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'repo':po.ui_from_repo,
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'_nevra':po.ui_nevra,
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}
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if type(po) == yum.rpmsack.RPMInstalledPackage:
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d['yumstate'] = 'installed'
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else:
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d['yumstate'] = 'available'
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return d
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def list_stuff(my, stuff):
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# FIXME - there are poitential tracebacks that could occur here
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# need some more catching for them so we can see what happened
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if stuff == 'installed':
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return [ pkg_to_dict(po) for po in my.rpmdb ]
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elif stuff == 'updates':
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return [ pkg_to_dict(po) for
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po in my.doPackageLists(pkgnarrow='updates').updates ]
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elif stuff == 'available':
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return [ pkg_to_dict(po) for po in my.pkgSack ]
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elif stuff == 'repos':
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r = []
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for repo in my.repos.repos.values():
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t = {}
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s = 'disabled'
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if repo.enabled:
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s = 'enabled'
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t[repo.id] = s
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r.append(t)
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return r
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else:
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e,m,u = my.rpmdb.matchPackageNames([stuff])
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p = e + m
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e,m,u = my.pkgSack.matchPackageNames([stuff])
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p = p + e + m
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return [ pkg_to_dict(po) for po in p ]
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def run_yum(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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if out is None:
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out = ''
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if err is None:
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err = ''
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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 ensure(my, state, pkgspec):
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yumconf = my.conf.config_file_path
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res = {}
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if state == 'installed':
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# check if pkgspec is installed
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if re.search('[></=]',pkgspec):
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try:
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pkgs = my.returnInstalledPackagesByDep(pkgspec)
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except yum.Errors.YumBaseError:
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pkgs = None
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else:
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e,m,u = my.rpmdb.matchPackageNames([pkgspec])
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pkgs = e +m
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if pkgs:
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return { 'changed':False }
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# if not see if it is available
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if re.search('[></=]',pkgspec):
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try:
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pkgs = my.returnPackagesByDep(pkgspec)
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except yum.Errors.YumBaseError:
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pkgs = None
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else:
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e,m,u = my.pkgSack.matchPackageNames([pkgspec])
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pkgs = e +m
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if not pkgs:
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msg = "No Package matching %s available" % pkgspec
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return { 'changed':False, 'failed': True, 'msg':msg }
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my.close()
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del my
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cmd = "yum -c %s -d1 -y install '%s'" % (yumconf, pkgspec)
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rc, out, err = run_yum(cmd)
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# FIXME - if we did an install - go and check the rpmdb to see if it actually installed
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# look for the pkg in rpmdb
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# look for the pkg via obsoletes
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if rc:
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changed = False
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failed = True
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else:
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changed = True
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failed = False
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res['changed'] = changed
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if failed:
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res['failed'] = failed
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res['msg'] = err
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res['results'] = out
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return res
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if state == 'removed':
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# check if pkgspec is installed
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# if not return {changed: False, failed=False }
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# if so try to remove it:
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# if successfull {changed:True, failed=False, results=stdout, errors=stderr }
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# if fail {'changed':False, failed='True', results=stdout, errors=stderr }
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yumconf = my.conf.config_file_path
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if re.search('[></=]',pkgspec):
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try:
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pkgs = my.returnInstalledPackagesByDep(pkgspec)
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except yum.Errors.YumBaseError:
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pkgs = None
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else:
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e,m,u = my.rpmdb.matchPackageNames([pkgspec])
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pkgs = e +m
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if not pkgs:
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return { 'changed':False }
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my.close()
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del my
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cmd = "yum -c %s -d1 -y remove '%s'" % (yumconf, pkgspec)
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rc, out, err = run_yum(cmd)
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# FIXME if we ran the remove - check to make sure it actually removed :(
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# look for the pkg in the rpmdb
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if rc:
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changed = False
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failed = True
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else:
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changed = True
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failed = False
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res['changed'] = changed
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if failed:
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res['failed'] = failed
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res['msg'] = err
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res['results'] = out
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return res
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if state == 'latest':
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updates = my.doPackageLists(pkgnarrow='updates', patterns=[pkgspec]).updates
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avail = my.doPackageLists(pkgnarrow='available', patterns=[pkgspec]).available
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if not updates and not avail:
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if not my.doPackageLists(pkgnarrow='installed', patterns=[pkgspec]).installed:
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msg = "No Package matching '%s' found available, installed or updated" % pkgspec
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return { 'changed':False, 'failed':True, 'msg': msg }
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return { 'changed':False,}
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# we have something in updates or available
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if not updates:
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cmd = "yum -c %s -d1 -y install '%s'" % (yumconf, pkgspec)
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else:
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cmd = "yum -c %s -d1 -y update '%s'" % (yumconf, pkgspec)
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rc, out, err = run_yum(cmd)
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# FIXME if it is - update it and check to see if it applied
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# check to see if there is no longer an update available for the pkgspec
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if rc:
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changed = False
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failed = True
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else:
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changed = True
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failed = False
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res['changed'] = changed
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if failed:
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res['failed'] = failed
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res['msg'] = err
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res['results'] = out
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return res
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return {'changed': False,
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'failed': True,
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'results':'',
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'errors': 'Ensure state %r unknown' % state }
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def update(args):
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#generic update routine
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pass
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def remove_only(pkgspec):
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# remove this pkg and only this pkg - fail if it will require more to remove
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pass
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def main():
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# state=installed pkg=pkgspec
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# state=removed pkg=pkgspec
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# state=latest pkg=pkgspec
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#
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# informational commands:
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# list=installed
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# list=updates
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# list=available
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# list=repos
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# list=pkgspec
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if len(sys.argv) == 1:
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msg = "the yum module requires arguments (-a)"
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return 1, msg
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argfile = sys.argv[1]
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if not os.path.exists(argfile):
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msg = "Argument file not found"
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return 1, msg
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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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msg = "the yum module requires arguments (-a)"
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return 1, msg
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# if nothing else changes - it fails
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results = { 'changed':False,
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'failed':True,
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'results':'',
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'errors':'',
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'msg':args }
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params = {}
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for x in items:
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try:
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(k, v) = x.split("=", 1)
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except ValueError:
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msg = "invalid arguments: %s" % args
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return 1, msg
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params[k] = v
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if 'conf_file' not in params:
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params['conf_file'] = None
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if 'list' in params:
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try:
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my = yum_base(conf_file=params['conf_file'], cachedir=True)
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results = dict(results=list_stuff(my, params['list']))
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except Exception, e:
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return 1, str(e)
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elif 'state' in params:
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if 'pkg' not in params:
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results['msg'] = "No pkg specified"
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else:
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try:
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my = yum_base(conf_file=params['conf_file'], cachedir=True)
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state = params['state']
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pkgspec = params['pkg']
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results = ensure(my, state, pkgspec)
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except Exception, e:
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return 1, str(e)
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print json.dumps(results)
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return 0, None
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if __name__ == "__main__":
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rc, msg = main()
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if rc != 0: # something went wrong emit the msg
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print json.dumps({
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"failed" : rc,
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"msg" : msg
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})
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sys.exit(rc)
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