216 lines
7.1 KiB
Python
216 lines
7.1 KiB
Python
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#
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# Copyright (C) 2018 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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# Author(s): Vendula Poncova <vponcova@redhat.com>
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#
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from enum import Enum
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from blivet.size import Size
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from pykickstart.constants import AUTOPART_TYPE_PLAIN, AUTOPART_TYPE_BTRFS, AUTOPART_TYPE_LVM, \
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AUTOPART_TYPE_LVM_THINP
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from pyanaconda.core.configuration.base import Section
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from pyanaconda.core.configuration.utils import split_name_and_attributes
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class PartitioningScheme(Enum):
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"""Type of the default partitioning scheme."""
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PLAIN = AUTOPART_TYPE_PLAIN
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BTRFS = AUTOPART_TYPE_BTRFS
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LVM = AUTOPART_TYPE_LVM
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LVM_THINP = AUTOPART_TYPE_LVM_THINP
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@classmethod
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def from_name(cls, value):
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"""Convert the given value into a partitioning scheme."""
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try:
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member = cls.__members__[value] # pylint: disable=unsubscriptable-object
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return member.value
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except KeyError:
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pass
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raise ValueError("'{}' is not a valid partitioning scheme".format(value))
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class StorageSection(Section):
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"""The Storage section."""
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@property
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def ibft(self):
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"""Enable iBFT usage during the installation."""
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return self._get_option("ibft", bool)
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@property
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def multipath_friendly_names(self):
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"""Use user friendly names for multipath devices.
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Tell multipathd to use user friendly names when naming devices
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during the installation.
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"""
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return self._get_option("multipath_friendly_names", bool)
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@property
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def gpt_discoverable_partitions(self):
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"""Use GPT discoverable partition type IDs, if possible.
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Tell Blivet to do this.
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"""
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return self._get_option("gpt_discoverable_partitions", bool)
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@property
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def allow_imperfect_devices(self):
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"""Do you want to allow imperfect devices?
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Imperfect devices are for example degraded mdraid arrays.
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This option should be enabled only in the rescue mode.
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"""
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return self._get_option("allow_imperfect_devices", bool)
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@property
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def btrfs_compression(self):
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"""BTRFS compression setting.
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Specifies the compression algorithm and level used when
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mounting Btrfs partitions. Defaults to None.
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For example: "zstd:1"
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"""
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return self._get_option("btrfs_compression", str) or None
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@property
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def disk_label_type(self):
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"""Default disk label type.
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Valid values:
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gpt Prefer creation of GPT disk labels.
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mbr Prefer creation of MBR disk labels.
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If no type is specified, we will use whatever Blivet uses by default.
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:return: a string with the disk label type
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"""
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return self._get_option("disk_label_type", str)
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@property
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def file_system_type(self):
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"""Default file system type.
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If no type is specified, we will use whatever Blivet uses by default.
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For example: xfs
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"""
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return self._get_option("file_system_type", str)
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@property
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def default_scheme(self):
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"""Default partitioning scheme.
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Valid values:
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0 PLAIN Create standard partitions.
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1 BTRFS Use the Btrfs scheme.
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2 LVM Use the LVM scheme.
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3 LVM_THINP Use LVM Thin Provisioning.
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:return: a partitioning scheme
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"""
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return self._get_option("default_scheme", PartitioningScheme.from_name)
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@property
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def luks_version(self):
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"""Default version of LUKS.
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Valid values:
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luks1 Use version 1 by default.
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luks2 Use version 2 by default.
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"""
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value = self._get_option("luks_version", str)
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if value not in ("luks1", "luks2"):
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raise ValueError("Invalid value: {}".format(value))
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return value
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@property
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def default_partitioning(self):
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"""Default partitioning.
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Returns a list of dictionaries with mount point attributes.
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The name of the mount point is represented by the attribute
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'name' in the dictionary representation.
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Valid attributes:
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name The name of the mount point.
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size The size of the mount point.
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min The size will grow from min size to max size.
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max The max size is unlimited by default.
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free The required available space.
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btrfs The mount point will be created only for the Btrfs scheme
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:return: a list of dictionaries with mount point attributes
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"""
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return self._get_option("default_partitioning", self._convert_partitioning)
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def _convert_partitioning(self, value):
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"""Convert a partitioning string into a list of dictionaries."""
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return list(map(self._convert_partitioning_line, value.strip().split("\n")))
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@classmethod
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def _convert_partitioning_line(cls, line):
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"""Convert a partitioning line into a dictionary."""
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# Parse the line.
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name, raw_attrs = split_name_and_attributes(line)
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# Generate the dictionary.
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attrs = {"name": name}
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for name, value in raw_attrs.items():
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if not value and name in ("btrfs", ):
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# Handle a boolean attribute.
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attrs[name] = True
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elif value and name in ("size", "min", "max", "free"):
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# Handle a size attribute.
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attrs[name] = Size(value)
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else:
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# Handle an invalid attribute.
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raise ValueError("Invalid attribute: " + name)
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# Validate the dictionary.
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cls._validate_mount_point_attributes(attrs)
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return attrs
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@staticmethod
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def _validate_mount_point_attributes(attrs):
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"""Validate the dictionary with mount point attributes."""
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if not attrs.get("name"):
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raise ValueError("The mount point is not specified.")
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if attrs.get("name") != "swap" and not attrs.get("name").startswith("/"):
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raise ValueError("The mount point is not valid.")
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if attrs.get("size") and attrs.get("min"):
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raise ValueError("Only one of the attributes 'size' and 'min' can be set.")
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if attrs.get("max") and not attrs.get("min"):
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raise ValueError("The attribute 'max' cannot be set without 'min'.")
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