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# Copyright (C) 2015 Red Hat, Inc.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# the GNU General Public License v.2, or (at your option) any later version.
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY expressed or implied, including the implied warranties 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 this program; if not, write to the
# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA. Any Red Hat trademarks that are incorporated in the
# source code or documentation are not subject to the GNU General Public
# License and may only be used or replicated with the express permission of
# Red Hat, Inc.
"""A plugin that ensures that given features are present."""
import dnf.cli
from dnf.i18n import _
from dnf.cli.option_parser import OptionParser
# The parent class allows registration to the CLI manager.
class Command(dnf.cli.Command):
"""A command that ensures that given features are present."""
# An alias is needed to invoke the command from command line.
aliases = ['foo'] # <-- SET YOUR ALIAS HERE.
def configure(self):
"""Setup the demands."""
# Repositories are needed if we want to install anything.
self.cli.demands.available_repos = True
# A sack is required by marking methods and dependency resolving.
self.cli.demands.sack_activation = True
# Resolving performs a transaction that installs the packages.
self.cli.demands.resolving = True
# Based on the system, privileges are required to do an installation.
self.cli.demands.root_user = True # <-- SET YOUR FLAG HERE.
@staticmethod
def set_argparser(parser):
"""Parse command line arguments."""
parser.add_argument('package', nargs='+', metavar=_('PACKAGE'),
action=OptionParser.ParseSpecGroupFileCallback,
help=_('Package to install'))
def run(self):
"""Run the command."""
# Feature marking methods set the user request.
for ftr_spec in self.opts.pkg_specs:
try:
self.base.install(ftr_spec)
except dnf.exceptions.MarkingError:
raise dnf.exceptions.Error('feature(s) not found: ' + ftr_spec)
# Package marking methods set the user request.
for pkg in self.base.add_remote_rpms(self.opts.filenames, strict=False):
try:
self.base.package_install(pkg, strict=False)
except dnf.exceptions.MarkingError as e:
raise dnf.exceptions.Error(e)
# Comps data reading initializes the base.comps attribute.
if self.opts.grp_specs:
self.base.read_comps(arch_filter=True)
# Group marking methods set the user request.
for grp_spec in self.opts.grp_specs:
group = self.base.comps.group_by_pattern(grp_spec)
if not group:
raise dnf.exceptions.Error('group not found: ' + grp_spec)
self.base.group_install(group.id, ['mandatory', 'default'])
# Every plugin must be a subclass of dnf.Plugin.
class Plugin(dnf.Plugin):
"""A plugin that registers our custom command."""
# Every plugin must provide its name.
name = 'foo' # <-- SET YOUR NAME HERE.
# Every plugin must provide its own initialization function.
def __init__(self, base, cli):
"""Initialize the plugin."""
super(Plugin, self).__init__(base, cli)
if cli:
cli.register_command(Command)
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