Hi
The attached code implements a plugin that protects against updating
packages from the Red Hat Network.
It's basically a hacked version of protectbase, and is needed because on RH
Enterprise Linux 5 RH use a plugin to present the RH Network channels as yum
repositories, so there is no repository configuration file to add a
protect=1 to in order to allow protectbase to work.
It could be improved upon by implementing a more robust method of detecting
that a repository is a RH network repo (currently it relies on finding the
text "rhel-" somewhere in the name of the repository.
Thoughts?
--
Tony Scholes
Beacon Computer Services
82 High Street South Tel:
+44(0)1582 478888
DUNSTABLE Beds. Fax:
+44(0)1582 478810
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www.beacon.co.uk
Beacon Computer Services is a trading name of Caneline Ltd.
Registered in England and Wales.
Registered No. 1558277. Registered Office: as above.
# This program 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 2 of the License, or
# (at your option) any later version.
#
# This program 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 Library General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# by Tony Scholes <[EMAIL PROTECTED]>
# after Menno Smits <[EMAIL PROTECTED]>
'''
This plugin allows Redhat Network repositories to be protected. Packages in the
protected repositories can't be overridden by packages in non-protected
repositories even if the non-protected repo has a later version.
This is mainly useful for preventing 3rd party repositories from interfering
with packages from core, updates, extras and livna.
RH Network funtionality in RH EL 5 is provided y a yum plugin.
Enable the plugin and add 'protect=yes' to the config of all repos you want to
protect.
'''
from yum.plugins import TYPE_CORE
from yum import config
requires_api_version = '2.4'
plugin_type = (TYPE_CORE,)
def config_hook(conduit):
'''Add options to Yum's configuration
'''
config.YumConf.protect = config.BoolOption(False)
config.RepoConf.protect = config.Inherit(config.YumConf.protect)
def exclude_hook(conduit):
'''Exclude packages from non-protected repositories that may upgrade
packages from the Redhat Network.
'''
cnt = 0
allrepos = conduit.getRepos().listEnabled()
for repo1 in allrepos:
if repo1.enabled and (repo1.id.find("rhel-") != -1):
repo1pkgs = _pkglisttodict(conduit.getPackages(repo1))
for repo2 in allrepos:
if not repo2.enabled or (repo2.id.find("rhel-") != -1):
continue
for po in conduit.getPackages(repo2):
if repo1pkgs.has_key(po.name):
conduit.delPackage(po)
cnt += 1
conduit.info(2, '%d packages excluded due to RH Network repository
protections' % cnt)
def _pkglisttodict(pl):
out = {}
for p in pl:
out[p.name] = 1
return out
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