#!/usr/bin/python -tt
# (c) 2012, Red Hat, Inc
# Written by Seth Vidal <skvidal at fedoraproject.org>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# 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.
#
# Ansible is distributed in the hope that it will be useful,
# 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
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
#
import os
import sys
import yum
import subprocess
import datetime
import shlex
import re
import traceback
import syslog
try:
import json
except ImportError:
import simplejson as json
def yum_base(conf_file=None, cachedir=False):
my = yum.YumBase()
my.preconf.debuglevel=0
if conf_file and os.path.exists(conf_file):
my.preconf.fn = conf_file
if cachedir:
if hasattr(my, 'setCacheDir'):
my.setCacheDir()
else:
cachedir = yum.misc.getCacheDir()
my.repos.setCacheDir(cachedir)
my.conf.cache = 0
return my
def pkg_to_dict(po):
d = {
'name':po.name,
'arch':po.arch,
'epoch':po.epoch,
'release':po.release,
'version':po.version,
}
if type(po) == yum.rpmsack.RPMInstalledPackage:
d['yumstate'] = 'installed'
d['repo'] = 'installed'
else:
d['yumstate'] = 'available'
d['repo'] = po.repoid
if hasattr(po, 'ui_from_repo'):
d['repo'] = po.ui_from_repo
if hasattr(po, 'ui_nevra'):
d['_nevra'] = po.ui_nevra
else:
d['_nevra'] = '%s-%s-%s.%s' % (po.name, po.version, po.release, po.arch)
return d
def list_stuff(my, stuff):
# FIXME - there are potential tracebacks that could occur here
# need some more catching for them so we can see what happened
if stuff == 'installed':
return [ pkg_to_dict(po) for po in my.rpmdb ]
elif stuff == 'updates':
return [ pkg_to_dict(po) for
po in my.doPackageLists(pkgnarrow='updates').updates ]
elif stuff == 'available':
return [ pkg_to_dict(po) for po in my.pkgSack ]
elif stuff == 'repos':
r = []
for repo in my.repos.repos.values():
t = {}
s = 'disabled'
if repo.enabled:
s = 'enabled'
t[repo.id] = s
r.append(t)
return r
else:
e,m,u = my.rpmdb.matchPackageNames([stuff])
p = e + m
e,m,u = my.pkgSack.matchPackageNames([stuff])
p = p + e + m
return [ pkg_to_dict(po) for po in p ]
def run_yum(command):
try:
cmd = subprocess.Popen(command, shell=True,
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = cmd.communicate()
except (OSError, IOError), e:
rc = 1
err = str(e)
out = ''
except:
rc = 1
err = traceback.format_exc()
out = ''
if out is None:
out = ''
if err is None:
err = ''
else:
rc = cmd.returncode
return rc, out, err
def ensure(my, state, pkgspec):
yumconf = my.conf.config_file_path
res = {}
if state == 'installed':
# check if pkgspec is installed
if re.search('[></=]',pkgspec):
try:
pkgs = my.returnInstalledPackagesByDep(pkgspec)
except yum.Errors.YumBaseError:
pkgs = None
else:
e,m,u = my.rpmdb.matchPackageNames([pkgspec])
pkgs = e +m
if pkgs:
return { 'changed':False }
# if not see if it is available
if re.search('[></=]',pkgspec):
try:
pkgs = my.returnPackagesByDep(pkgspec)
except yum.Errors.YumBaseError:
pkgs = None
else:
e,m,u = my.pkgSack.matchPackageNames([pkgspec])
pkgs = e +m
if not pkgs:
msg = "No Package matching %s available" % pkgspec
return { 'changed':False, 'failed': True, 'msg':msg }
my.close()
del my
cmd = "yum -c %s -d1 -y install '%s'" % (yumconf, pkgspec)
rc, out, err = run_yum(cmd)
# FIXME - if we did an install - go and check the rpmdb to see if it actually installed
# look for the pkg in rpmdb
# look for the pkg via obsoletes
if rc:
changed = False
failed = True
else:
changed = True
failed = False
res['changed'] = changed
if failed:
res['failed'] = failed
res['msg'] = err
res['results'] = out
return res
if state == 'removed':
# check if pkgspec is installed
# if not return {changed: False, failed=False }
# if so try to remove it:
# if successfull {changed:True, failed=False, results=stdout, errors=stderr }
# if fail {'changed':False, failed='True', results=stdout, errors=stderr }
yumconf = my.conf.config_file_path
if re.search('[></=]',pkgspec):
try:
pkgs = my.returnInstalledPackagesByDep(pkgspec)
except yum.Errors.YumBaseError:
pkgs = None
else:
e,m,u = my.rpmdb.matchPackageNames([pkgspec])
pkgs = e +m
if not pkgs:
return { 'changed':False }
my.close()
del my
cmd = "yum -c %s -d1 -y remove '%s'" % (yumconf, pkgspec)
rc, out, err = run_yum(cmd)
# FIXME if we ran the remove - check to make sure it actually removed :(
# look for the pkg in the rpmdb
if rc:
changed = False
failed = True
else:
changed = True
failed = False
res['changed'] = changed
if failed:
res['failed'] = failed
res['msg'] = err
res['results'] = out
return res
if state == 'latest':
updates = my.doPackageLists(pkgnarrow='updates', patterns=[pkgspec]).updates
# sucks but this is for rhel5 - won't matter for rhel6 or fedora or whatnot
e,m,u = yum.parsePackages(updates, [pkgspec], casematch=True)
updates = e + m
avail = my.doPackageLists(pkgnarrow='available', patterns=[pkgspec]).available
if not updates and not avail:
if not my.doPackageLists(pkgnarrow='installed', patterns=[pkgspec]).installed:
msg = "No Package matching '%s' found available, installed or updated" % pkgspec
return { 'changed':False, 'failed':True, 'msg': msg }
return { 'changed':False,}
# we have something in updates or available
if not updates:
cmd = "yum -c %s -d1 -y install '%s'" % (yumconf, pkgspec)
else:
cmd = "yum -c %s -d1 -y update '%s'" % (yumconf, pkgspec)
rc, out, err = run_yum(cmd)
# FIXME if it is - update it and check to see if it applied
# check to see if there is no longer an update available for the pkgspec
if rc:
changed = False
failed = True
else:
changed = True
failed = False
res['changed'] = changed
if failed:
res['failed'] = failed
res['msg'] = err
res['results'] = out
return res
return {'changed': False,
'failed': True,
'results':'',
'errors': 'Ensure state %r unknown' % state }
def update(args):
#generic update routine
pass
def remove_only(pkgspec):
# remove this pkg and only this pkg - fail if it will require more to remove
pass
def main():
# state=installed pkg=pkgspec
# state=removed pkg=pkgspec
# state=latest pkg=pkgspec
#
# informational commands:
# list=installed
# list=updates
# list=available
# list=repos
# list=pkgspec
if len(sys.argv) == 1:
msg = "the yum module requires arguments (-a)"
return 1, msg
argfile = sys.argv[1]
if not os.path.exists(argfile):
msg = "Argument file not found"
return 1, msg
args = open(argfile, 'r').read()
items = shlex.split(args)
syslog.openlog('ansible-%s' % os.path.basename(__file__))
syslog.syslog(syslog.LOG_NOTICE, 'Invoked with %s' % args)
if not len(items):
msg = "the yum module requires arguments (-a)"
return 1, msg
# if nothing else changes - it fails
results = { 'changed':False,
'failed':True,
'results':'',
'errors':'',
'msg':args }
params = {}
for x in items:
try:
(k, v) = x.split("=", 1)
except ValueError:
msg = "invalid arguments: %s" % args
return 1, msg
params[k] = v
if 'conf_file' not in params:
params['conf_file'] = None
if 'list' in params:
try:
my = yum_base(conf_file=params['conf_file'], cachedir=True)
results = dict(results=list_stuff(my, params['list']))
except Exception, e:
return 1, str(e)
else:
pkg = params.get('pkg', params.get('package', params.get('name', None)))
if 'pkg' is None:
results['msg'] = "No pkg specified"
else:
try:
my = yum_base(conf_file=params['conf_file'], cachedir=True)
state = params.get('state', 'installed')
results = ensure(my, state, pkg)
except Exception, e:
return 1, str(e)
print json.dumps(results)
return 0, None
if __name__ == "__main__":
rc, msg = main()
if rc != 0: # something went wrong emit the msg
print json.dumps({
"failed" : rc,
"msg" : msg
})
sys.exit(rc)