Hello,
I'd like yum to tell me if after a transaction there are any new leaf packages
installed. New packages installed in a transaction are the obvious ones (and
should maybe not be displayed at all but IMO that's a minor concern that can
be taken care of if need be, perhaps with a config option), but the more
interesting ones are new leaves after an update or update+install transaction.
remove-with-leaves is similar but AFAIK it handles only erase transactions.
So, I came up with the attached plugin. I don't feel too good about clearing
cached rpmdb data in posttrans_hook but it seems necessary and the alternative
I came up with (grabbing rpmdb data in close_hook instead of posttrans_hook
and accessing rpmdb there through conduit._base.rpmdb) felt even worse. Is
there a better way?
Comments and improvements welcome. I'd like to see this eventually included
in yum-utils.
# -*- coding: utf-8 -*-
#
# Copyright (c) 2009 Ville Skyttä <ville.skytta at iki.fi>
#
# 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.
"""
B{show-leaves} is a Yum plugin which shows newly installed leaf packages and
packages that became leaves after a transaction.
"""
from yum.plugins import TYPE_CORE
requires_api_version = '2.4'
plugin_type = (TYPE_CORE,)
_old_leaves = None
_new_leaves = None
def _get_installed_leaves(conduit):
ret = set()
for po in conduit.getRpmDB().returnLeafNodes():
ret.add((po.name, po.arch))
return ret
def pretrans_hook(conduit):
global _old_leaves
_old_leaves = _get_installed_leaves(conduit)
def posttrans_hook(conduit):
global _new_leaves
conduit.getRpmDB().dropCachedData() # XXX side effects?
_new_leaves = _get_installed_leaves(conduit)
def close_hook(conduit):
global _old_leaves, _new_leaves
if _old_leaves is None or _new_leaves is None:
return
newleaves = _new_leaves - _old_leaves
if newleaves:
conduit.info(2, "New leaves:")
for leaf in sorted(newleaves):
conduit.info(2, " %s.%s" % leaf)
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