323 lines
11 KiB
Python
323 lines
11 KiB
Python
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#
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# Copyright (C) 2021 Red Hat, Inc.
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#
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# This copyrighted material is made available to anyone wishing to use,
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# modify, copy, or redistribute it subject to the terms and conditions of
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# the GNU General Public License v.2, or (at your option) any later version.
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY expressed or implied, including the implied warranties of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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# Public License for more details. You should have received a copy of the
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# GNU General Public License along with this program; if not, write to the
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# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA. Any Red Hat trademarks that are incorporated in the
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# source code or documentation are not subject to the GNU General Public
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# License and may only be used or replicated with the express permission of
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# Red Hat, Inc.
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#
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from collections import namedtuple
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from blivet.arch import is_aarch64
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from pyanaconda.anaconda_loggers import get_module_logger
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from pyanaconda.core.i18n import _
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from pyanaconda.modules.common.structures.comps import CompsEnvironmentData, CompsGroupData
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from pyanaconda.modules.common.structures.packages import PackagesSelectionData
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log = get_module_logger(__name__)
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FEATURE_64K = "64k"
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KernelFeatures = namedtuple("KernelFeatures", ["page_size_64k"])
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def get_environment_data(dnf_proxy, environment_name):
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"""Get the environment data.
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:param dnf_proxy: a proxy of the DNF payload
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:param environment_name: an environment name
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:return CompsEnvironmentData: an environment data
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"""
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return CompsEnvironmentData.from_structure(
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dnf_proxy.GetEnvironmentData(environment_name)
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)
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def get_group_data(dnf_proxy, group_name):
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"""Get the group data.
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:param dnf_proxy: a proxy of the DNF payload
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:param group_name: a group name
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:return CompsGroupData: a group data
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"""
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return CompsGroupData.from_structure(
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dnf_proxy.GetGroupData(group_name)
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)
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def is_software_selection_complete(dnf_proxy, selection, kickstarted=False):
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"""Check the completeness of the software selection.
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:param dnf_proxy: a proxy of the DNF payload
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:param selection: a packages selection data
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:param kickstarted: is the selection configured by a kickstart file?
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:return: True if the selection is complete, otherwise False
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"""
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# The environment doesn't have to be set for the automated installation.
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if kickstarted and not selection.environment:
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return True
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# The selected environment has to be valid.
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return bool(dnf_proxy.ResolveEnvironment(selection.environment))
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def get_software_selection_status(dnf_proxy, selection, kickstarted=False):
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"""Get the software selection status.
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:param dnf_proxy: a proxy of the DNF payload
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:param selection: a packages selection data
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:param kickstarted: is the selection configured by a kickstart file?
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:return: a translated string with the selection status
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"""
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if kickstarted:
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# The %packages section is present in kickstart, but environment is not set.
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if not selection.environment:
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return _("Custom software selected")
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# The environment is set to an invalid value.
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elif not dnf_proxy.ResolveEnvironment(selection.environment):
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return _("Invalid environment specified in kickstart")
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else:
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if not selection.environment:
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# No environment is set.
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return _("Please confirm software selection")
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elif not dnf_proxy.ResolveEnvironment(selection.environment):
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# Selected environment is not valid, this can happen when a valid environment
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# is selected (by default, manually or from kickstart) and then the installation
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# source is switched to one where the selected environment is no longer valid.
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return _("Selected environment is not valid")
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# The valid environment is set.
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environment_data = CompsEnvironmentData.from_structure(
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dnf_proxy.GetEnvironmentData(selection.environment)
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)
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return environment_data.name
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def get_available_kernel_features(dnf_proxy):
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"""Returns a dictionary with that shows which kernels should be shown in the UI.
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"""
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features = {
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FEATURE_64K: is_aarch64() and any(dnf_proxy.MatchAvailablePackages("kernel-64k"))
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}
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return features
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def get_kernel_titles_and_descriptions():
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"""Returns a dictionary with descriptions and titles for different kernel options.
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"""
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kernel_features = {
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"4k": (_("4k"), _("More efficient memory usage in smaller environments")),
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"64k": (_("64k"), _("System performance gains for memory-intensive workloads")),
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}
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return kernel_features
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def get_kernel_from_properties(features):
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"""Translates the selection of required properties into a kernel package name and returns it
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or returns None if no properties were selected.
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"""
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kernels = {
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# ARM 64k Package Name
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(False): None,
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(True): "kernel-64k",
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}
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kernel_package = kernels[features[0]]
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return kernel_package
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class SoftwareSelectionCache(object):
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"""The cache of the user software selection.
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Use the software selection cache to select environments
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and groups in the user interface.
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The cache remembers groups that were selected by default
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based on the current environment, explicitly selected by
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the user and explicitly deselected.
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Selected groups that are not available in the current
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environment are ignored.
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"""
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def __init__(self, dnf_proxy):
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"""Create a new cache.
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:param dnf_proxy: a proxy of the DNF payload
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"""
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self._dnf_proxy = dnf_proxy
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self._environment = ""
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self._available_groups = set()
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self._default_groups = set()
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self._selected_groups = set()
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self._deselected_groups = set()
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@property
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def environment(self):
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"""The selected environment.
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:return: an environment id
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"""
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return self._environment
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@property
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def available_environments(self):
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"""The available environments.
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:return: a list of environment ids
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"""
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return self._dnf_proxy.GetEnvironments()
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@property
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def groups(self):
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"""The selected groups.
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:return: a list of group ids
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"""
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return sorted(filter(self.is_group_selected, self._available_groups))
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@property
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def available_groups(self):
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"""The available groups.
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:return: a list of group ids
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"""
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return sorted(self._available_groups)
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def select_environment(self, environment):
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"""Select the specified environment.
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:param str environment: an identifier of an environment
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"""
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log.debug("Selecting the '%s' environment.", environment)
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# Reset the environment configuration.
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self._environment = ""
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self._default_groups = set()
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self._available_groups = set()
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# No environment is specified.
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if not environment:
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return
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# Get the environment data.
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environment_data = CompsEnvironmentData.from_structure(
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self._dnf_proxy.GetEnvironmentData(environment)
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)
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# Select the environment.
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self._environment = environment_data.id
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# Select the default groups.
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self._default_groups = set(environment_data.default_groups)
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# Select the available groups.
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self._available_groups = set(environment_data.get_available_groups())
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def is_environment_selected(self, environment):
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"""Is the specified environment marked as selected?
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:param str environment: an identifier of an environment
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:return: True if the environment is marked as selected, otherwise False
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"""
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return environment == self._environment
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def select_group(self, group):
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"""Select the specified group.
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:param str group: an identifier of a group
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"""
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log.debug("Selecting the '%s' group.", group)
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# Get the group data.
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group_data = CompsGroupData.from_structure(
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self._dnf_proxy.GetGroupData(group)
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)
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# Remove the group from the deselected groups.
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self._deselected_groups.discard(group_data.id)
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# Add the group to the selected groups if it is not a default.
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if group_data.id not in self._default_groups:
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self._selected_groups.add(group_data.id)
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def deselect_group(self, group):
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"""Select or deselect the specified group.
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:param str group: an identifier of a group
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"""
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log.debug("Deselecting the '%s' group.", group)
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# Get the group data.
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group_data = CompsGroupData.from_structure(
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self._dnf_proxy.GetGroupData(group)
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)
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# Add the group to the deselected groups. We don't need
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# to remove the group from selected or default groups,
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# because deselected groups have a higher priority.
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self._deselected_groups.add(group_data.id)
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def is_group_selected(self, group):
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"""Is the specified group marked as selected?
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:param str group: an identifier of a group
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:return: True if the group is marked as selected, otherwise False
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"""
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# The group is not available in the current environment.
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if group not in self._available_groups:
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return False
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# The group is explicitly deselected by the user.
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if group in self._deselected_groups:
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return False
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# The group is selected by default or by the user.
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return group in self._default_groups or group in self._selected_groups
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def apply_selection_data(self, selection: PackagesSelectionData):
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"""Apply the selection data.
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Invalid environments and groups will be ignored. If the environment
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cannot be selected, we will choose a default one.
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:param selection: a packages selection data
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"""
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# Select the environment.
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if self._dnf_proxy.ResolveEnvironment(selection.environment):
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self.select_environment(selection.environment)
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else:
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log.warning("The '%s' environment couldn't be selected.", selection.environment)
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self.select_environment(self._dnf_proxy.GetDefaultEnvironment())
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# Select groups.
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self._selected_groups = set()
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self._deselected_groups = set()
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for group in selection.groups:
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if self._dnf_proxy.ResolveGroup(group):
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self.select_group(group)
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continue
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log.warning("The '%s' group couldn't be selected.", group)
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def get_selection_data(self) -> PackagesSelectionData:
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"""Generate the selection data.
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:return: a packages selection data
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"""
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selection = PackagesSelectionData()
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selection.environment = self.environment
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selection.groups = self.groups
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return selection
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