93 lines
3.3 KiB
Python
93 lines
3.3 KiB
Python
# Copyright 2021 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from __future__ import (absolute_import, division, print_function)
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import logging
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__metaclass__ = type
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class DnfModuleManager:
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"""Class that manages dnf modules."""
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def __init__(self):
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# lazy import to allow CLI to start without dnf
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import dnf
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self.base = dnf.Base()
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self.base.conf.read()
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self.base.conf.best = True
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self.base.read_all_repos()
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self.base.fill_sack()
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self.module_base = dnf.module.module_base.ModuleBase(self.base)
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def _get_module_spec(self, name, stream=None, profile=None):
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"""Return a module spec string based on stream and/or profile."""
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module_spec = name
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if stream:
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module_spec += ':{0}'.format(stream)
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if profile:
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module_spec += '/{0}'.format(profile)
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return module_spec
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def _do_transaction(self):
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"""Perform the resolved transaction."""
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try:
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self.base.do_transaction()
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except RuntimeError:
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logging.error('This command has to be run with superuser '
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'privileges.')
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raise
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def enable_module(self, name, stream=None, profile=None):
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"""Enable a module stream."""
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self.module_base.enable(
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[self._get_module_spec(name, stream=stream, profile=profile)]
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)
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self._do_transaction()
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logging.info("Module %s was enabled.", name)
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def disable_module(self, name, stream=None, profile=None):
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"""Disable a module stream."""
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self.module_base.disable(
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[self._get_module_spec(name, stream=stream, profile=profile)]
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)
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self._do_transaction()
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logging.info("Module %s was disabled.", name)
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def reset_module(self, name, stream=None, profile=None):
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"""Reset a module. It will no longer be enabled or disabled."""
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self.module_base.reset(
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[self._get_module_spec(name, stream=stream, profile=profile)]
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)
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self._do_transaction()
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logging.info("Module %s was reset.", name)
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def install_module(self, name, stream=None, profile=None):
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"""Install packages of a module profile."""
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self.module_base.install(
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[self._get_module_spec(name, stream=stream, profile=profile)]
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)
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self.base.resolve()
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self.base.download_packages(self.base.transaction.install_set)
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self._do_transaction()
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logging.info("Module %s was installed.", name)
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def remove_module(self, name, stream=None, profile=None):
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"""Remove packages of a module profile."""
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self.module_base.remove(
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[self._get_module_spec(name, stream=stream, profile=profile)]
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)
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self._do_transaction()
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logging.info("Module %s was removed.", name)
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