Send patches - preferably formatted by git format-patch - to patches at archlinux32 dot org.
summaryrefslogtreecommitdiff
path: root/archinstall/lib/disk/device_model.py
blob: cd9558515fcf6cee016e0215f93af26a932a71dc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
from __future__ import annotations

import dataclasses
import json
import math
import time
import uuid
from dataclasses import dataclass, field
from enum import Enum
from enum import auto
from pathlib import Path
from typing import Optional, List, Dict, TYPE_CHECKING, Any
from typing import Union

import parted  # type: ignore
import _ped  # type: ignore
from parted import Disk, Geometry, Partition

from ..exceptions import DiskError, SysCallError
from ..general import SysCommand
from ..output import debug, error
from ..storage import storage
from ..output import info

if TYPE_CHECKING:
	_: Any


class DiskLayoutType(Enum):
	Default = 'default_layout'
	Manual = 'manual_partitioning'
	Pre_mount = 'pre_mounted_config'

	def display_msg(self) -> str:
		match self:
			case DiskLayoutType.Default: return str(_('Use a best-effort default partition layout'))
			case DiskLayoutType.Manual: return str(_('Manual Partitioning'))
			case DiskLayoutType.Pre_mount: return str(_('Pre-mounted configuration'))


@dataclass
class DiskLayoutConfiguration:
	config_type: DiskLayoutType
	device_modifications: List[DeviceModification] = field(default_factory=list)

	def json(self) -> Dict[str, Any]:
		return {
			'config_type': self.config_type.value,
			'device_modifications': [mod.json() for mod in self.device_modifications]
		}

	@classmethod
	def parse_arg(cls, disk_config: Dict[str, List[Dict[str, Any]]]) -> Optional[DiskLayoutConfiguration]:
		from .device_handler import device_handler

		device_modifications: List[DeviceModification] = []
		config_type = disk_config.get('config_type', None)

		if not config_type:
			raise ValueError('Missing disk layout configuration: config_type')

		config = DiskLayoutConfiguration(
			config_type=DiskLayoutType(config_type),
			device_modifications=device_modifications
		)

		for entry in disk_config.get('device_modifications', []):
			device_path = Path(entry.get('device', None)) if entry.get('device', None) else None

			if not device_path:
				continue

			device = device_handler.get_device(device_path)

			if not device:
				continue

			device_modification = DeviceModification(
				wipe=entry.get('wipe', False),
				device=device
			)

			device_partitions: List[PartitionModification] = []

			for partition in entry.get('partitions', []):
				device_partition = PartitionModification(
					status=ModificationStatus(partition['status']),
					fs_type=FilesystemType(partition['fs_type']),
					start=Size.parse_args(partition['start']),
					length=Size.parse_args(partition['size']),
					mount_options=partition['mount_options'],
					mountpoint=Path(partition['mountpoint']) if partition['mountpoint'] else None,
					dev_path=Path(partition['dev_path']) if partition['dev_path'] else None,
					type=PartitionType(partition['type']),
					flags=[PartitionFlag[f] for f in partition.get('flags', [])],
					btrfs_subvols=SubvolumeModification.parse_args(partition.get('btrfs', [])),
				)
				# special 'invisible attr to internally identify the part mod
				setattr(device_partition, '_obj_id', partition['obj_id'])
				device_partitions.append(device_partition)

			device_modification.partitions = device_partitions
			device_modifications.append(device_modification)

		return config


class PartitionTable(Enum):
	GPT = 'gpt'
	MBR = 'msdos'


class Unit(Enum):
	B = 1          # byte
	kB = 1000**1   # kilobyte
	MB = 1000**2   # megabyte
	GB = 1000**3   # gigabyte
	TB = 1000**4   # terabyte
	PB = 1000**5   # petabyte
	EB = 1000**6   # exabyte
	ZB = 1000**7   # zettabyte
	YB = 1000**8   # yottabyte

	KiB = 1024**1 	# kibibyte
	MiB = 1024**2 	# mebibyte
	GiB = 1024**3  	# gibibyte
	TiB = 1024**4  	# tebibyte
	PiB = 1024**5  	# pebibyte
	EiB = 1024**6  	# exbibyte
	ZiB = 1024**7  	# zebibyte
	YiB = 1024**8  	# yobibyte

	sectors = 'sectors'  # size in sector

	@staticmethod
	def get_all_units() -> List[str]:
		return [u.name for u in Unit]

	@staticmethod
	def get_si_units() -> List[Unit]:
		return [u for u in Unit if 'i' not in u.name and u.name != 'sectors']


@dataclass
class SectorSize:
	value: int
	unit: Unit

	def __post_init__(self):
		match self.unit:
			case Unit.sectors:
				raise ValueError('Unit type sector not allowed for SectorSize')

	@staticmethod
	def default() -> SectorSize:
		return SectorSize(512, Unit.B)

	def json(self) -> Dict[str, Any]:
		return {
			'value': self.value,
			'unit': self.unit.name,
		}

	@classmethod
	def parse_args(cls, arg: Dict[str, Any]) -> SectorSize:
		return SectorSize(
			arg['value'],
			Unit[arg['unit']]
		)

	def normalize(self) -> int:
		"""
		will normalize the value of the unit to Byte
		"""
		return int(self.value * self.unit.value)  # type: ignore


@dataclass
class Size:
	value: int
	unit: Unit
	sector_size: SectorSize

	def __post_init__(self):
		if not isinstance(self.sector_size, SectorSize):
			raise ValueError('sector size must be of type SectorSize')

	def json(self) -> Dict[str, Any]:
		return {
			'value': self.value,
			'unit': self.unit.name,
			'sector_size': self.sector_size.json() if self.sector_size else None
		}

	@classmethod
	def parse_args(cls, size_arg: Dict[str, Any]) -> Size:
		sector_size = size_arg['sector_size']

		return Size(
			size_arg['value'],
			Unit[size_arg['unit']],
			SectorSize.parse_args(sector_size),
		)

	def convert(
		self,
		target_unit: Unit,
		sector_size: Optional[SectorSize] = None
	) -> Size:
		if target_unit == Unit.sectors and sector_size is None:
			raise ValueError('If target has unit sector, a sector size must be provided')

		if self.unit == target_unit:
			return self
		elif self.unit == Unit.sectors:
			norm = self._normalize()
			return Size(norm, Unit.B, self.sector_size).convert(target_unit, sector_size)
		else:
			if target_unit == Unit.sectors and sector_size is not None:
				norm = self._normalize()
				sectors = math.ceil(norm / sector_size.value)
				return Size(sectors, Unit.sectors, sector_size)
			else:
				value = int(self._normalize() / target_unit.value)  # type: ignore
				return Size(value, target_unit, self.sector_size)

	def as_text(self) -> str:
		return self.format_size(
			self.unit,
			self.sector_size
		)

	def format_size(
		self,
		target_unit: Unit,
		sector_size: Optional[SectorSize] = None,
		include_unit: bool = True
	) -> str:
		target_size = self.convert(target_unit, sector_size)

		if include_unit:
			return f'{target_size.value} {target_unit.name}'
		return f'{target_size.value}'

	def format_highest(self, include_unit: bool = True) -> str:
		si_units = Unit.get_si_units()
		all_si_values = [self.convert(si) for si in si_units]
		filtered = filter(lambda x: x.value >= 1, all_si_values)

		# we have to get the max by the unit value as we're interested
		# in getting the value in the highest possible unit without floats
		si_value = max(filtered, key=lambda x: x.unit.value)

		if include_unit:
			return f'{si_value.value} {si_value.unit.name}'
		return f'{si_value.value}'

	def _normalize(self) -> int:
		"""
		will normalize the value of the unit to Byte
		"""
		if self.unit == Unit.sectors and self.sector_size is not None:
			return self.value * self.sector_size.normalize()
		return int(self.value * self.unit.value)  # type: ignore

	def __sub__(self, other: Size) -> Size:
		src_norm = self._normalize()
		dest_norm = other._normalize()
		return Size(abs(src_norm - dest_norm), Unit.B, self.sector_size)

	def __add__(self, other: Size) -> Size:
		src_norm = self._normalize()
		dest_norm = other._normalize()
		return Size(abs(src_norm + dest_norm), Unit.B, self.sector_size)

	def __lt__(self, other):
		return self._normalize() < other._normalize()

	def __le__(self, other):
		return self._normalize() <= other._normalize()

	def __eq__(self, other):
		return self._normalize() == other._normalize()

	def __ne__(self, other):
		return self._normalize() != other._normalize()

	def __gt__(self, other):
		return self._normalize() > other._normalize()

	def __ge__(self, other):
		return self._normalize() >= other._normalize()


@dataclass
class _BtrfsSubvolumeInfo:
	name: Path
	mountpoint: Optional[Path]


@dataclass
class _PartitionInfo:
	partition: Partition
	name: str
	type: PartitionType
	fs_type: Optional[FilesystemType]
	path: Path
	start: Size
	length: Size
	flags: List[PartitionFlag]
	partn: Optional[int]
	partuuid: Optional[str]
	uuid: Optional[str]
	disk: Disk
	mountpoints: List[Path]
	btrfs_subvol_infos: List[_BtrfsSubvolumeInfo] = field(default_factory=list)

	@property
	def sector_size(self) -> SectorSize:
		sector_size = self.partition.geometry.device.sectorSize
		return SectorSize(sector_size, Unit.B)

	def table_data(self) -> Dict[str, Any]:
		end = self.start + self.length

		part_info = {
			'Name': self.name,
			'Type': self.type.value,
			'Filesystem': self.fs_type.value if self.fs_type else str(_('Unknown')),
			'Path': str(self.path),
			'Start': self.start.format_size(Unit.sectors, self.sector_size, include_unit=False),
			'End': end.format_size(Unit.sectors, self.sector_size, include_unit=False),
			'Size': self.length.format_highest(),
			'Flags': ', '.join([f.name for f in self.flags])
		}

		if self.btrfs_subvol_infos:
			part_info['Btrfs vol.'] = f'{len(self.btrfs_subvol_infos)} subvolumes'

		return part_info

	@classmethod
	def from_partition(
		cls,
		partition: Partition,
		fs_type: Optional[FilesystemType],
		partn: Optional[int],
		partuuid: Optional[str],
		uuid: Optional[str],
		mountpoints: List[Path],
		btrfs_subvol_infos: List[_BtrfsSubvolumeInfo] = []
	) -> _PartitionInfo:
		partition_type = PartitionType.get_type_from_code(partition.type)
		flags = [f for f in PartitionFlag if partition.getFlag(f.value)]

		start = Size(
			partition.geometry.start,
			Unit.sectors,
			SectorSize(partition.disk.device.sectorSize, Unit.B)
		)

		length = Size(
			int(partition.getLength(unit='B')),
			Unit.B,
			SectorSize(partition.disk.device.sectorSize, Unit.B)
		)

		return _PartitionInfo(
			partition=partition,
			name=partition.get_name(),
			type=partition_type,
			fs_type=fs_type,
			path=partition.path,
			start=start,
			length=length,
			flags=flags,
			partn=partn,
			partuuid=partuuid,
			uuid=uuid,
			disk=partition.disk,
			mountpoints=mountpoints,
			btrfs_subvol_infos=btrfs_subvol_infos
		)


@dataclass
class _DeviceInfo:
	model: str
	path: Path
	type: str
	total_size: Size
	free_space_regions: List[DeviceGeometry]
	sector_size: SectorSize
	read_only: bool
	dirty: bool

	def table_data(self) -> Dict[str, Any]:
		total_free_space = sum([region.get_length(unit=Unit.MiB) for region in self.free_space_regions])
		return {
			'Model': self.model,
			'Path': str(self.path),
			'Type': self.type,
			'Size': self.total_size.format_highest(),
			'Free space': int(total_free_space),
			'Sector size': self.sector_size.value,
			'Read only': self.read_only
		}

	@classmethod
	def from_disk(cls, disk: Disk) -> _DeviceInfo:
		device = disk.device
		if device.type == 18:
			device_type = 'loop'
		else:
			device_type = parted.devices[device.type]

		sector_size = SectorSize(device.sectorSize, Unit.B)
		free_space = [DeviceGeometry(g, sector_size) for g in disk.getFreeSpaceRegions()]

		sector_size = SectorSize(device.sectorSize, Unit.B)

		return _DeviceInfo(
			model=device.model.strip(),
			path=Path(device.path),
			type=device_type,
			sector_size=sector_size,
			total_size=Size(int(device.getLength(unit='B')), Unit.B, sector_size),
			free_space_regions=free_space,
			read_only=device.readOnly,
			dirty=device.dirty
		)


@dataclass
class SubvolumeModification:
	name: Path
	mountpoint: Optional[Path] = None
	compress: bool = False
	nodatacow: bool = False

	@classmethod
	def from_existing_subvol_info(cls, info: _BtrfsSubvolumeInfo) -> SubvolumeModification:
		return SubvolumeModification(info.name, mountpoint=info.mountpoint)

	@classmethod
	def parse_args(cls, subvol_args: List[Dict[str, Any]]) -> List[SubvolumeModification]:
		mods = []
		for entry in subvol_args:
			if not entry.get('name', None) or not entry.get('mountpoint', None):
				debug(f'Subvolume arg is missing name: {entry}')
				continue

			mountpoint = Path(entry['mountpoint']) if entry['mountpoint'] else None

			compress = entry.get('compress', False)
			nodatacow = entry.get('nodatacow', False)

			if compress and nodatacow:
				raise ValueError('compress and nodatacow flags cannot be enabled simultaneously on a btfrs subvolume')

			mods.append(
				SubvolumeModification(
					entry['name'],
					mountpoint,
					compress,
					nodatacow
				)
			)

		return mods

	@property
	def mount_options(self) -> List[str]:
		options = []
		options += ['compress'] if self.compress else []
		options += ['nodatacow'] if self.nodatacow else []
		return options

	@property
	def relative_mountpoint(self) -> Path:
		"""
		Will return the relative path based on the anchor
		e.g. Path('/mnt/test') -> Path('mnt/test')
		"""
		if self.mountpoint is not None:
			return self.mountpoint.relative_to(self.mountpoint.anchor)

		raise ValueError('Mountpoint is not specified')

	def is_root(self) -> bool:
		if self.mountpoint:
			return self.mountpoint == Path('/')
		return False

	def json(self) -> Dict[str, Any]:
		return {
			'name': str(self.name),
			'mountpoint': str(self.mountpoint),
			'compress': self.compress,
			'nodatacow': self.nodatacow
		}

	def table_data(self) -> Dict[str, Any]:
		return self.json()


class DeviceGeometry:
	def __init__(self, geometry: Geometry, sector_size: SectorSize):
		self._geometry = geometry
		self._sector_size = sector_size

	@property
	def start(self) -> int:
		return self._geometry.start

	@property
	def end(self) -> int:
		return self._geometry.end

	def get_length(self, unit: Unit = Unit.sectors) -> int:
		return self._geometry.getLength(unit.name)

	def table_data(self) -> Dict[str, Any]:
		start = Size(self._geometry.start, Unit.sectors, self._sector_size)
		end = Size(self._geometry.end, Unit.sectors, self._sector_size)
		length = Size(self._geometry.getLength(), Unit.sectors, self._sector_size)

		start_str = f'{self._geometry.start} / {start.format_size(Unit.B, include_unit=False)}'
		end_str = f'{self._geometry.end} / {end.format_size(Unit.B, include_unit=False)}'
		length_str = f'{self._geometry.getLength()} / {length.format_size(Unit.B, include_unit=False)}'

		return {
			'Sector size': self._sector_size.value,
			'Start (sector/B)': start_str,
			'End (sector/B)': end_str,
			'Size (sectors/B)': length_str
		}


@dataclass
class BDevice:
	disk: Disk
	device_info: _DeviceInfo
	partition_infos: List[_PartitionInfo]

	def __hash__(self):
		return hash(self.disk.device.path)


class PartitionType(Enum):
	Boot = 'boot'
	Primary = 'primary'
	_Unknown = 'unknown'

	@classmethod
	def get_type_from_code(cls, code: int) -> PartitionType:
		if code == parted.PARTITION_NORMAL:
			return PartitionType.Primary
		else:
			info(f'Partition code not supported: {code}')
			return PartitionType._Unknown

	def get_partition_code(self) -> Optional[int]:
		if self == PartitionType.Primary:
			return parted.PARTITION_NORMAL
		elif self == PartitionType.Boot:
			return parted.PARTITION_BOOT
		return None


class PartitionFlag(Enum):
	"""
	Flags are taken from _ped because pyparted uses this to look
	up their flag definitions: https://github.com/dcantrell/pyparted/blob/c4e0186dad45c8efbe67c52b02c8c4319df8aa9b/src/parted/__init__.py#L200-L202
	Which is the way libparted checks for its flags: https://git.savannah.gnu.org/gitweb/?p=parted.git;a=blob;f=libparted/labels/gpt.c;hb=4a0e468ed63fff85a1f9b923189f20945b32f4f1#l183
	"""
	Boot = _ped.PARTITION_BOOT
	XBOOTLDR = _ped.PARTITION_BLS_BOOT # Note: parted calls this bls_boot
	ESP = _ped.PARTITION_ESP


# class PartitionGUIDs(Enum):
# 	"""
# 	A list of Partition type GUIDs (lsblk -o+PARTTYPE) can be found here: https://en.wikipedia.org/wiki/GUID_Partition_Table#Partition_type_GUIDs
# 	"""
# 	XBOOTLDR = 'bc13c2ff-59e6-4262-a352-b275fd6f7172'


class FilesystemType(Enum):
	Btrfs = 'btrfs'
	Ext2 = 'ext2'
	Ext3 = 'ext3'
	Ext4 = 'ext4'
	F2fs = 'f2fs'
	Fat16 = 'fat16'
	Fat32 = 'fat32'
	Ntfs = 'ntfs'
	Reiserfs = 'reiserfs'
	Xfs = 'xfs'

	# this is not a FS known to parted, so be careful
	# with the usage from this enum
	Crypto_luks = 'crypto_LUKS'

	def is_crypto(self) -> bool:
		return self == FilesystemType.Crypto_luks

	@property
	def fs_type_mount(self) -> str:
		match self:
			case FilesystemType.Ntfs: return 'ntfs3'
			case FilesystemType.Fat32: return 'vfat'
			case _: return self.value  # type: ignore

	@property
	def installation_pkg(self) -> Optional[str]:
		match self:
			case FilesystemType.Btrfs: return 'btrfs-progs'
			case FilesystemType.Xfs: return 'xfsprogs'
			case FilesystemType.F2fs: return 'f2fs-tools'
			case _: return None

	@property
	def installation_module(self) -> Optional[str]:
		match self:
			case FilesystemType.Btrfs: return 'btrfs'
			case _: return None

	@property
	def installation_binary(self) -> Optional[str]:
		match self:
			case FilesystemType.Btrfs: return '/usr/bin/btrfs'
			case _: return None

	@property
	def installation_hooks(self) -> Optional[str]:
		match self:
			case FilesystemType.Btrfs: return 'btrfs'
			case _: return None


class ModificationStatus(Enum):
	Exist = 'existing'
	Modify = 'modify'
	Delete = 'delete'
	Create = 'create'


@dataclass
class PartitionModification:
	status: ModificationStatus
	type: PartitionType
	start: Size
	length: Size
	fs_type: Optional[FilesystemType]
	mountpoint: Optional[Path] = None
	mount_options: List[str] = field(default_factory=list)
	flags: List[PartitionFlag] = field(default_factory=list)
	btrfs_subvols: List[SubvolumeModification] = field(default_factory=list)

	# only set if the device was created or exists
	dev_path: Optional[Path] = None
	partn: Optional[int] = None
	partuuid: Optional[str] = None
	uuid: Optional[str] = None

	_efi_indicator_flags = (PartitionFlag.Boot, PartitionFlag.ESP)
	_boot_indicator_flags = (PartitionFlag.Boot, PartitionFlag.XBOOTLDR)

	def __post_init__(self):
		# needed to use the object as a dictionary key due to hash func
		if not hasattr(self, '_obj_id'):
			self._obj_id = uuid.uuid4()

		if self.is_exists_or_modify() and not self.dev_path:
			raise ValueError('If partition marked as existing a path must be set')

		if self.fs_type is None and self.status == ModificationStatus.Modify:
			raise ValueError('FS type must not be empty on modifications with status type modify')

	def __hash__(self):
		return hash(self._obj_id)

	@property
	def obj_id(self) -> str:
		if hasattr(self, '_obj_id'):
			return str(self._obj_id)
		return ''

	@property
	def safe_dev_path(self) -> Path:
		if self.dev_path is None:
			raise ValueError('Device path was not set')
		return self.dev_path

	@property
	def safe_fs_type(self) -> FilesystemType:
		if self.fs_type is None:
			raise ValueError('File system type is not set')
		return self.fs_type

	@classmethod
	def from_existing_partition(cls, partition_info: _PartitionInfo) -> PartitionModification:
		if partition_info.btrfs_subvol_infos:
			mountpoint = None
			subvol_mods = []
			for i in partition_info.btrfs_subvol_infos:
				subvol_mods.append(
					SubvolumeModification.from_existing_subvol_info(i)
				)
		else:
			mountpoint = partition_info.mountpoints[0] if partition_info.mountpoints else None
			subvol_mods = []

		return PartitionModification(
			status=ModificationStatus.Exist,
			type=partition_info.type,
			start=partition_info.start,
			length=partition_info.length,
			fs_type=partition_info.fs_type,
			dev_path=partition_info.path,
			partn=partition_info.partn,
			partuuid=partition_info.partuuid,
			uuid=partition_info.uuid,
			flags=partition_info.flags,
			mountpoint=mountpoint,
			btrfs_subvols=subvol_mods
		)

	@property
	def relative_mountpoint(self) -> Path:
		"""
		Will return the relative path based on the anchor
		e.g. Path('/mnt/test') -> Path('mnt/test')
		"""
		if self.mountpoint:
			return self.mountpoint.relative_to(self.mountpoint.anchor)

		raise ValueError('Mountpoint is not specified')

	def is_efi(self) -> bool:
		return (
			any(set(self.flags) & set(self._efi_indicator_flags))
			and self.fs_type == FilesystemType.Fat32
			and PartitionFlag.XBOOTLDR not in self.flags
		)

	def is_boot(self) -> bool:
		"""
		Returns True if any of the boot indicator flags are found in self.flags
		"""
		return any(set(self.flags) & set(self._boot_indicator_flags))

	def is_root(self) -> bool:
		if self.mountpoint is not None:
			return Path('/') == self.mountpoint
		else:
			for subvol in self.btrfs_subvols:
				if subvol.is_root():
					return True

		return False

	def is_modify(self) -> bool:
		return self.status == ModificationStatus.Modify

	def exists(self) -> bool:
		return self.status == ModificationStatus.Exist

	def is_exists_or_modify(self) -> bool:
		return self.status in [ModificationStatus.Exist, ModificationStatus.Modify]

	@property
	def mapper_name(self) -> Optional[str]:
		if self.dev_path:
			return f'{storage.get("ENC_IDENTIFIER", "ai")}{self.dev_path.name}'
		return None

	def set_flag(self, flag: PartitionFlag):
		if flag not in self.flags:
			self.flags.append(flag)

	def invert_flag(self, flag: PartitionFlag):
		if flag in self.flags:
			self.flags = [f for f in self.flags if f != flag]
		else:
			self.set_flag(flag)

	def json(self) -> Dict[str, Any]:
		"""
		Called for configuration settings
		"""
		return {
			'obj_id': self.obj_id,
			'status': self.status.value,
			'type': self.type.value,
			'start': self.start.json(),
			'size': self.length.json(),
			'fs_type': self.fs_type.value if self.fs_type else '',
			'mountpoint': str(self.mountpoint) if self.mountpoint else None,
			'mount_options': self.mount_options,
			'flags': [f.name for f in self.flags],
			'dev_path': str(self.dev_path) if self.dev_path else None,
			'btrfs': [vol.json() for vol in self.btrfs_subvols]
		}

	def table_data(self) -> Dict[str, Any]:
		"""
		Called for displaying data in table format
		"""
		end = self.start + self.length

		part_mod = {
			'Status': self.status.value,
			'Device': str(self.dev_path) if self.dev_path else '',
			'Type': self.type.value,
			'Start': self.start.format_size(Unit.sectors, self.start.sector_size, include_unit=False),
			'End': end.format_size(Unit.sectors, self.start.sector_size, include_unit=False),
			'Size': self.length.format_highest(),
			'FS type': self.fs_type.value if self.fs_type else 'Unknown',
			'Mountpoint': self.mountpoint if self.mountpoint else '',
			'Mount options': ', '.join(self.mount_options),
			'Flags': ', '.join([f.name for f in self.flags]),
		}

		if self.btrfs_subvols:
			part_mod['Btrfs vol.'] = f'{len(self.btrfs_subvols)} subvolumes'

		return part_mod


@dataclass
class DeviceModification:
	device: BDevice
	wipe: bool
	partitions: List[PartitionModification] = field(default_factory=list)

	@property
	def device_path(self) -> Path:
		return self.device.device_info.path

	def add_partition(self, partition: PartitionModification):
		self.partitions.append(partition)

	def get_efi_partition(self) -> Optional[PartitionModification]:
		"""
		Similar to get_boot_partition() but excludes XBOOTLDR partitions from it's candidates.
		"""
		filtered = filter(lambda x: x.is_efi() and x.mountpoint, self.partitions)
		return next(filtered, None)

	def get_boot_partition(self) -> Optional[PartitionModification]:
		"""
		Returns the first partition marked as XBOOTLDR (PARTTYPE id of bc13c2ff-...) or Boot and has a mountpoint.
		Only returns XBOOTLDR if separate EFI is detected using self.get_efi_partition()
		Will return None if no suitable partition is found.
		"""
		if efi_partition := self.get_efi_partition():
			filtered = filter(lambda x: x.is_boot() and x != efi_partition and x.mountpoint, self.partitions)
			if boot_partition := next(filtered, None):
				return boot_partition
			return efi_partition
		else:
			filtered = filter(lambda x: x.is_boot() and x.mountpoint, self.partitions)
			return next(filtered, None)

	def get_root_partition(self) -> Optional[PartitionModification]:
		filtered = filter(lambda x: x.is_root(), self.partitions)
		return next(filtered, None)

	def json(self) -> Dict[str, Any]:
		"""
		Called when generating configuration files
		"""
		return {
			'device': str(self.device.device_info.path),
			'wipe': self.wipe,
			'partitions': [p.json() for p in self.partitions]
		}


class EncryptionType(Enum):
	NoEncryption = "no_encryption"
	Luks = "luks"

	@classmethod
	def _encryption_type_mapper(cls) -> Dict[str, 'EncryptionType']:
		return {
			'Luks': EncryptionType.Luks
		}

	@classmethod
	def text_to_type(cls, text: str) -> 'EncryptionType':
		mapping = cls._encryption_type_mapper()
		return mapping[text]

	@classmethod
	def type_to_text(cls, type_: 'EncryptionType') -> str:
		mapping = cls._encryption_type_mapper()
		type_to_text = {type_: text for text, type_ in mapping.items()}
		return type_to_text[type_]


@dataclass
class DiskEncryption:
	encryption_type: EncryptionType = EncryptionType.Luks
	encryption_password: str = ''
	partitions: List[PartitionModification] = field(default_factory=list)
	hsm_device: Optional[Fido2Device] = None

	def should_generate_encryption_file(self, part_mod: PartitionModification) -> bool:
		return part_mod in self.partitions and part_mod.mountpoint != Path('/')

	def json(self) -> Dict[str, Any]:
		obj: Dict[str, Any] = {
			'encryption_type': self.encryption_type.value,
			'partitions': [p.obj_id for p in self.partitions]
		}

		if self.hsm_device:
			obj['hsm_device'] = self.hsm_device.json()

		return obj

	@classmethod
	def parse_arg(
		cls,
		disk_config: DiskLayoutConfiguration,
		arg: Dict[str, Any],
		password: str = ''
	) -> 'DiskEncryption':
		enc_partitions = []
		for mod in disk_config.device_modifications:
			for part in mod.partitions:
				if part.obj_id in arg.get('partitions', []):
					enc_partitions.append(part)

		enc = DiskEncryption(
			EncryptionType(arg['encryption_type']),
			password,
			enc_partitions
		)

		if hsm := arg.get('hsm_device', None):
			enc.hsm_device = Fido2Device.parse_arg(hsm)

		return enc


@dataclass
class Fido2Device:
	path: Path
	manufacturer: str
	product: str

	def json(self) -> Dict[str, str]:
		return {
			'path': str(self.path),
			'manufacturer': self.manufacturer,
			'product': self.product
		}

	def table_data(self) -> Dict[str, str]:
		return {
			'Path': str(self.path),
			'Manufacturer': self.manufacturer,
			'Product': self.product
		}

	@classmethod
	def parse_arg(cls, arg: Dict[str, str]) -> 'Fido2Device':
		return Fido2Device(
			Path(arg['path']),
			arg['manufacturer'],
			arg['product']
		)


@dataclass
class LsblkInfo:
	name: str = ''
	path: Path = Path()
	pkname: str = ''
	size: Size = field(default_factory=lambda: Size(0, Unit.B, SectorSize.default()))
	log_sec: int = 0
	pttype: str = ''
	ptuuid: str = ''
	rota: bool = False
	tran: Optional[str] = None
	partn: Optional[int] = None
	partuuid: Optional[str] = None
	parttype :Optional[str] = None
	uuid: Optional[str] = None
	fstype: Optional[str] = None
	fsver: Optional[str] = None
	fsavail: Optional[str] = None
	fsuse_percentage: Optional[str] = None
	type: Optional[str] = None
	mountpoint: Optional[Path] = None
	mountpoints: List[Path] = field(default_factory=list)
	fsroots: List[Path] = field(default_factory=list)
	children: List[LsblkInfo] = field(default_factory=list)

	def json(self) -> Dict[str, Any]:
		return {
			'name': self.name,
			'path': str(self.path),
			'pkname': self.pkname,
			'size': self.size.format_size(Unit.MiB),
			'log_sec': self.log_sec,
			'pttype': self.pttype,
			'ptuuid': self.ptuuid,
			'rota': self.rota,
			'tran': self.tran,
			'partn': self.partn,
			'partuuid': self.partuuid,
			'parttype' : self.parttype,
			'uuid': self.uuid,
			'fstype': self.fstype,
			'fsver': self.fsver,
			'fsavail': self.fsavail,
			'fsuse_percentage': self.fsuse_percentage,
			'type': self.type,
			'mountpoint': self.mountpoint,
			'mountpoints': [str(m) for m in self.mountpoints],
			'fsroots': [str(r) for r in self.fsroots],
			'children': [c.json() for c in self.children]
		}

	@property
	def btrfs_subvol_info(self) -> Dict[Path, Path]:
		"""
		It is assumed that lsblk will contain the fields as

		"mountpoints": ["/mnt/archinstall/log", "/mnt/archinstall/home", "/mnt/archinstall", ...]
		"fsroots": ["/@log", "/@home", "/@"...]

		we'll thereby map the fsroot, which are the mounted filesystem roots
		to the corresponding mountpoints
		"""
		return dict(zip(self.fsroots, self.mountpoints))

	@classmethod
	def exclude(cls) -> List[str]:
		return ['children']

	@classmethod
	def fields(cls) -> List[str]:
		return [f.name for f in dataclasses.fields(LsblkInfo) if f.name not in cls.exclude()]

	@classmethod
	def from_json(cls, blockdevice: Dict[str, Any]) -> LsblkInfo:
		lsblk_info = cls()

		for f in cls.fields():
			lsblk_field = _clean_field(f, CleanType.Blockdevice)
			data_field = _clean_field(f, CleanType.Dataclass)

			val: Any = None
			if isinstance(getattr(lsblk_info, data_field), Path):
				val = Path(blockdevice[lsblk_field])
			elif isinstance(getattr(lsblk_info, data_field), Size):
				sector_size = SectorSize(blockdevice['log-sec'], Unit.B)
				val = Size(blockdevice[lsblk_field], Unit.B, sector_size)
			else:
				val = blockdevice[lsblk_field]

			setattr(lsblk_info, data_field, val)

		lsblk_info.children = [LsblkInfo.from_json(child) for child in blockdevice.get('children', [])]

		# sometimes lsblk returns 'mountpoints': [null]
		lsblk_info.mountpoints = [Path(mnt) for mnt in lsblk_info.mountpoints if mnt]

		fs_roots = []
		for r in lsblk_info.fsroots:
			if r:
				path = Path(r)
				# store the fsroot entries without the leading /
				fs_roots.append(path.relative_to(path.anchor))
		lsblk_info.fsroots = fs_roots

		return lsblk_info


class CleanType(Enum):
	Blockdevice = auto()
	Dataclass = auto()
	Lsblk = auto()


def _clean_field(name: str, clean_type: CleanType) -> str:
	match clean_type:
		case CleanType.Blockdevice:
			return name.replace('_percentage', '%').replace('_', '-')
		case CleanType.Dataclass:
			return name.lower().replace('-', '_').replace('%', '_percentage')
		case CleanType.Lsblk:
			return name.replace('_percentage', '%').replace('_', '-')


def _fetch_lsblk_info(dev_path: Optional[Union[Path, str]] = None, retry: int = 3) -> List[LsblkInfo]:
	fields = [_clean_field(f, CleanType.Lsblk) for f in LsblkInfo.fields()]
	lsblk_fields = ','.join(fields)

	if not dev_path:
		dev_path = ''

	if retry == 0:
		retry = 1

	for retry_attempt in range(retry):
		try:
			result = SysCommand(f'lsblk --json -b -o+{lsblk_fields} {dev_path}').decode()
			break
		except SysCallError as err:
			# Get the output minus the message/info from lsblk if it returns a non-zero exit code.
			if err.worker:
				err_str = err.worker.decode()
				debug(f'Error calling lsblk: {err_str}')
			else:
				raise err

			if retry_attempt == retry - 1:
				raise err

			time.sleep(1)

	try:
		block_devices = json.loads(result)
		blockdevices = block_devices['blockdevices']
		return [LsblkInfo.from_json(device) for device in blockdevices]
	except json.decoder.JSONDecodeError as err:
		error(f"Could not decode lsblk JSON: {result}")
		raise err

	raise DiskError(f'Failed to read disk "{dev_path}" with lsblk')


def get_lsblk_info(dev_path: Union[Path, str]) -> LsblkInfo:
	if infos := _fetch_lsblk_info(dev_path):
		return infos[0]

	raise DiskError(f'lsblk failed to retrieve information for "{dev_path}"')


def get_all_lsblk_info() -> List[LsblkInfo]:
	return _fetch_lsblk_info()

def get_lsblk_by_mountpoint(mountpoint: Path, as_prefix: bool = False) -> List[LsblkInfo]:
	def _check(infos: List[LsblkInfo]) -> List[LsblkInfo]:
		devices = []
		for entry in infos:
			if as_prefix:
				matches = [m for m in entry.mountpoints if str(m).startswith(str(mountpoint))]
				if matches:
					devices += [entry]
			elif mountpoint in entry.mountpoints:
				devices += [entry]

			if len(entry.children) > 0:
				if len(match := _check(entry.children)) > 0:
					devices += match

		return devices

	all_info = get_all_lsblk_info()
	return _check(all_info)