aboutsummaryrefslogtreecommitdiff
blob: b4e5a4d5e7785ae0935318167d6ae9b8a7a139d5 (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
# Copyright 2010-2015 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

from __future__ import unicode_literals

import io
import logging
import warnings
import sys
import re

try:
	from configparser import Error as ConfigParserError
	if sys.hexversion >= 0x3020000:
		from configparser import ConfigParser as SafeConfigParser
	else:
		from configparser import SafeConfigParser
except ImportError:
	from ConfigParser import SafeConfigParser, Error as ConfigParserError
import portage
from portage import eclass_cache, os
from portage.const import (MANIFEST2_HASH_FUNCTIONS, MANIFEST2_REQUIRED_HASH,
	PORTAGE_BASE_PATH, REPO_NAME_LOC, USER_CONFIG_PATH)
from portage.eapi import eapi_allows_directories_on_profile_level_and_repository_level
from portage.env.loaders import KeyValuePairFileLoader
from portage.util import (normalize_path, read_corresponding_eapi_file, shlex_split,
	stack_lists, writemsg, writemsg_level, _recursive_file_list)
from portage.util._path import exists_raise_eaccess, isdir_raise_eaccess
from portage.localization import _
from portage import _unicode_decode
from portage import _unicode_encode
from portage import _encodings
from portage.package.ebuild import manifest
import portage.sync

from gkeys.config import GKeysConfig
from gkeys.gkeysinterface import GkeysInterface

if sys.hexversion >= 0x3000000:
	# pylint: disable=W0622
	basestring = str

# Characters prohibited by repoman's file.name check.
_invalid_path_char_re = re.compile(r'[^a-zA-Z0-9._\-+:/]')

_valid_profile_formats = frozenset(
	['pms', 'portage-1', 'portage-2', 'profile-bashrcs', 'profile-set',
	'profile-default-eapi', 'build-id'])

_portage1_profiles_allow_directories = frozenset(
	["portage-1-compat", "portage-1", 'portage-2'])

_repo_name_sub_re = re.compile(r'[^\w-]')

def _gen_valid_repo(name):
	"""
	Substitute hyphen in place of characters that don't conform to PMS 3.1.5,
	and strip hyphen from left side if necessary. This returns None if the
	given name contains no valid characters.
	"""
	name = _repo_name_sub_re.sub(' ', name.strip())
	name = '-'.join(name.split())
	name = name.lstrip('-')
	if not name:
		name = None
	return name

def _find_invalid_path_char(path, pos=0, endpos=None):
	"""
	Returns the position of the first invalid character found in basename,
	or -1 if no invalid characters are found.
	"""
	if endpos is None:
		endpos = len(path)

	m = _invalid_path_char_re.search(path, pos=pos, endpos=endpos)
	if m is not None:
		return m.start()

	return -1

class RepoConfig(object):
	"""Stores config of one repository"""

	__slots__ = ('aliases', 'allow_missing_manifest', 'allow_provide_virtual',
		'auto_sync', 'cache_formats', 'create_manifest', 'disable_manifest',
		'eapi', 'eclass_db', 'eclass_locations', 'eclass_overrides',
		'find_invalid_path_char', 'force', 'format', '_gkeys', '_gkeysConfig',
		'local_config', 'location', 'main_repo', 'manifest_hashes', 'masters',
		'missing_repo_name', 'name', 'portage1_profiles',
		'portage1_profiles_compat', 'priority', 'profile_formats',
		'sign_commit', 'sign_manifest', 'sync_cvs_repo', 'sync_depth',
		'sync_type', 'sync_umask', 'sync_uri', 'sync_user', 'thin_manifest',
		'update_changelog', 'user_location', '_eapis_banned',
		'_eapis_deprecated', '_masters_orig', '_manifest_cache')

	def __init__(self, name, repo_opts, local_config=True):
		"""Build a RepoConfig with options in repo_opts
		   Try to read repo_name in repository location, but if
		   it is not found use variable name as repository name"""

		force = repo_opts.get('force')
		if force is not None:
			force = tuple(force.split())
		self.force = force
		if force is None:
			force = ()

		self.local_config = local_config

		if local_config or 'aliases' in force:
			aliases = repo_opts.get('aliases')
			if aliases is not None:
				aliases = tuple(aliases.split())
		else:
			aliases = None

		self.aliases = aliases

		if local_config or 'eclass-overrides' in force:
			eclass_overrides = repo_opts.get('eclass-overrides')
			if eclass_overrides is not None:
				eclass_overrides = tuple(eclass_overrides.split())
		else:
			eclass_overrides = None

		self.eclass_overrides = eclass_overrides
		# Eclass databases and locations are computed later.
		self.eclass_db = None
		self.eclass_locations = None

		if local_config or 'masters' in force:
			# Masters from repos.conf override layout.conf.
			masters = repo_opts.get('masters')
			if masters is not None:
				masters = tuple(masters.split())
		else:
			masters = None

		self.masters = masters

		#The main-repo key makes only sense for the 'DEFAULT' section.
		self.main_repo = repo_opts.get('main-repo')

		priority = repo_opts.get('priority')
		if priority is not None:
			try:
				priority = int(priority)
			except ValueError:
				priority = None
		self.priority = priority

		sync_cvs_repo = repo_opts.get('sync-cvs-repo')
		if sync_cvs_repo is not None:
			sync_cvs_repo = sync_cvs_repo.strip()
		self.sync_cvs_repo = sync_cvs_repo or None

		sync_type = repo_opts.get('sync-type')
		if sync_type is not None:
			sync_type = sync_type.strip()
		self.sync_type = sync_type or None

		sync_umask = repo_opts.get('sync-umask')
		if sync_umask is not None:
			sync_umask = sync_umask.strip()
		self.sync_umask = sync_umask or None

		sync_uri = repo_opts.get('sync-uri')
		if sync_uri is not None:
			sync_uri = sync_uri.strip()
		self.sync_uri = sync_uri or None

		sync_user = repo_opts.get('sync-user')
		if sync_user is not None:
			sync_user = sync_user.strip()
		self.sync_user = sync_user or None

		auto_sync = repo_opts.get('auto-sync', 'yes')
		if auto_sync is not None:
			auto_sync = auto_sync.strip().lower()
		self.auto_sync = auto_sync

		self.sync_depth = repo_opts.get('sync-depth')

		# Not implemented.
		format = repo_opts.get('format')
		if format is not None:
			format = format.strip()
		self.format = format

		location = repo_opts.get('location')
		self.user_location = location
		if location is not None and location.strip():
			if os.path.isdir(location) or portage._sync_mode:
				location = os.path.realpath(location)
		else:
			location = None
		self.location = location

		missing = True
		self.name = name
		if self.location is not None:
			self.name, missing = self._read_valid_repo_name(self.location)
			if missing:
				# The name from repos.conf has to be used here for
				# things like emerge-webrsync to work when the repo
				# is empty (bug #484950).
				if name is not None:
					self.name = name
				if portage._sync_mode:
					missing = False

		elif name == "DEFAULT":
			missing = False

		self.eapi = None
		self.missing_repo_name = missing
		# sign_commit is disabled by default, since it requires Git >=1.7.9,
		# and key_id configured by `git config user.signingkey key_id`
		self.sign_commit = False
		self.sign_manifest = True
		self.thin_manifest = False
		self.allow_missing_manifest = False
		self.allow_provide_virtual = False
		self.create_manifest = True
		self.disable_manifest = False
		self.manifest_hashes = None
		self.update_changelog = False
		self.cache_formats = None
		self.portage1_profiles = True
		self.portage1_profiles_compat = False
		self.find_invalid_path_char = _find_invalid_path_char
		self._masters_orig = None
		self._gkeys = None
		self._gkeysConfig = None

		# Parse layout.conf.
		if self.location:
			layout_data = parse_layout_conf(self.location, self.name)[0]
			self._masters_orig = layout_data['masters']

			# layout.conf masters may be overridden here if we have a masters
			# setting from the user's repos.conf
			if self.masters is None:
				self.masters = layout_data['masters']

			if (local_config or 'aliases' in force) and layout_data['aliases']:
				aliases = self.aliases
				if aliases is None:
					aliases = ()
				# repos.conf aliases come after layout.conf aliases, giving
				# them the ability to do incremental overrides
				self.aliases = layout_data['aliases'] + tuple(aliases)

			if layout_data['repo-name']:
				# allow layout.conf to override repository name
				# useful when having two copies of the same repo enabled
				# to avoid modifying profiles/repo_name in one of them
				self.name = layout_data['repo-name']

			for value in ('allow-missing-manifest',
				'allow-provide-virtual', 'cache-formats',
				'create-manifest', 'disable-manifest', 'manifest-hashes',
				'profile-formats',
				'sign-commit', 'sign-manifest', 'thin-manifest', 'update-changelog'):
				setattr(self, value.lower().replace("-", "_"), layout_data[value])

			# If profile-formats specifies a default EAPI, then set
			# self.eapi to that, otherwise set it to "0" as specified
			# by PMS.
			self.eapi = layout_data.get(
				'profile_eapi_when_unspecified', '0')

			eapi = read_corresponding_eapi_file(
				os.path.join(self.location, REPO_NAME_LOC),
				default=self.eapi)

			self.portage1_profiles = eapi_allows_directories_on_profile_level_and_repository_level(eapi) or \
				any(x in _portage1_profiles_allow_directories for x in layout_data['profile-formats'])
			self.portage1_profiles_compat = not eapi_allows_directories_on_profile_level_and_repository_level(eapi) and \
				layout_data['profile-formats'] == ('portage-1-compat',)

			self._eapis_banned = frozenset(layout_data['eapis-banned'])
			self._eapis_deprecated = frozenset(layout_data['eapis-deprecated'])

	def eapi_is_banned(self, eapi):
		return eapi in self._eapis_banned

	def eapi_is_deprecated(self, eapi):
		return eapi in self._eapis_deprecated

	def iter_pregenerated_caches(self, auxdbkeys, readonly=True, force=False):
		"""
		Reads layout.conf cache-formats from left to right and yields cache
		instances for each supported type that's found. If no cache-formats
		are specified in layout.conf, 'pms' type is assumed if the
		metadata/cache directory exists or force is True.
		"""
		formats = self.cache_formats
		if not formats:
			if not force:
				return
			# The default egencache format was 'pms' prior to portage-2.1.11.32
			# (portage versions prior to portage-2.1.11.14 will NOT
			# recognize md5-dict format unless it is explicitly listed in
			# layout.conf).
			formats = ('md5-dict',)

		for fmt in formats:
			name = None
			if fmt == 'pms':
				from portage.cache.metadata import database
				name = 'metadata/cache'
			elif fmt == 'md5-dict':
				from portage.cache.flat_hash import md5_database as database
				name = 'metadata/md5-cache'

			if name is not None:
				yield database(self.location, name,
					auxdbkeys, readonly=readonly)

	def get_pregenerated_cache(self, auxdbkeys, readonly=True, force=False):
		"""
		Returns the first cache instance yielded from
		iter_pregenerated_caches(), or None if no cache is available or none
		of the available formats are supported.
		"""
		return next(self.iter_pregenerated_caches(
			auxdbkeys, readonly=readonly, force=force), None)

	@property
	def gkeys(self):
		if not self._gkeys:
			root = '/'
			self._gkeysConfig = GKeysConfig(root=root, read_configfile=True)
			self._gkeys = GkeysInterface('portage', root, loglevel='INFO')
		return self._gkeys

	def load_manifest(self, *args, **kwds):
		kwds['thin'] = self.thin_manifest
		kwds['allow_missing'] = self.allow_missing_manifest
		kwds['allow_create'] = self.create_manifest
		kwds['hashes'] = self.manifest_hashes
		if self.disable_manifest:
			kwds['from_scratch'] = True
		kwds['find_invalid_path_char'] = self.find_invalid_path_char
		kwds['sign_manifest'] = self.sign_manifest
		kwds['gkeys'] = self.gkeys
		# Only need sigcheck for manifest creation to disable it
		sigcheck = kwds.get('sigcheck', True)
		mf = manifest.Manifest(*args, **portage._native_kwargs(kwds))
		if sigcheck:
			mf.validateSignature()
		return mf



	def update(self, new_repo):
		"""Update repository with options in another RepoConfig"""

		keys = set(self.__slots__)
		keys.discard("missing_repo_name")
		for k in keys:
			v = getattr(new_repo, k, None)
			if v is not None:
				setattr(self, k, v)

		if new_repo.name is not None:
			self.missing_repo_name = new_repo.missing_repo_name

	@staticmethod
	def _read_valid_repo_name(repo_path):
		name, missing = RepoConfig._read_repo_name(repo_path)
		# We must ensure that the name conforms to PMS 3.1.5
		# in order to avoid InvalidAtom exceptions when we
		# use it to generate atoms.
		name = _gen_valid_repo(name)
		if not name:
			# name only contains invalid characters
			name = "x-" + os.path.basename(repo_path)
			name = _gen_valid_repo(name)
			# If basename only contains whitespace then the
			# end result is name = 'x-'.
		return name, missing

	@staticmethod
	def _read_repo_name(repo_path):
		"""
		Read repo_name from repo_path.
		Returns repo_name, missing.
		"""
		repo_name_path = os.path.join(repo_path, REPO_NAME_LOC)
		f = None
		try:
			f = io.open(
				_unicode_encode(repo_name_path,
				encoding=_encodings['fs'], errors='strict'),
				mode='r', encoding=_encodings['repo.content'],
				errors='replace')
			return f.readline().strip(), False
		except EnvironmentError:
			return "x-" + os.path.basename(repo_path), True
		finally:
			if f is not None:
				f.close()

	def info_string(self):
		"""
		Returns a formatted string containing informations about the repository.
		Used by emerge --info.
		"""
		indent = " " * 4
		repo_msg = []
		repo_msg.append(self.name)
		if self.format:
			repo_msg.append(indent + "format: " + self.format)
		if self.user_location:
			repo_msg.append(indent + "location: " + self.user_location)
		if self.sync_cvs_repo:
			repo_msg.append(indent + "sync-cvs-repo: " + self.sync_cvs_repo)
		if self.sync_type:
			repo_msg.append(indent + "sync-type: " + self.sync_type)
		if self.sync_umask:
			repo_msg.append(indent + "sync-umask: " + self.sync_umask)
		if self.sync_uri:
			repo_msg.append(indent + "sync-uri: " + self.sync_uri)
		if self.sync_user:
			repo_msg.append(indent + "sync-user: " + self.sync_user)
		if self.masters:
			repo_msg.append(indent + "masters: " + " ".join(master.name for master in self.masters))
		if self.priority is not None:
			repo_msg.append(indent + "priority: " + str(self.priority))
		if self.aliases:
			repo_msg.append(indent + "aliases: " + " ".join(self.aliases))
		if self.eclass_overrides:
			repo_msg.append(indent + "eclass-overrides: " + \
				" ".join(self.eclass_overrides))
		repo_msg.append("")
		return "\n".join(repo_msg)

	def __repr__(self):
		return "<portage.repository.config.RepoConfig(name=%r, location=%r)>" % (self.name, _unicode_decode(self.location))

	def __str__(self):
		d = {}
		for k in self.__slots__:
			d[k] = getattr(self, k, None)
		return "%s" % (d,)

	if sys.hexversion < 0x3000000:

		__unicode__ = __str__

		def __str__(self):
			return _unicode_encode(self.__unicode__())

class RepoConfigLoader(object):
	"""Loads and store config of several repositories, loaded from PORTDIR_OVERLAY or repos.conf"""

	@staticmethod
	def _add_repositories(portdir, portdir_overlay, prepos,
		ignored_map, ignored_location_map, local_config, default_portdir):
		"""Add overlays in PORTDIR_OVERLAY as repositories"""
		overlays = []
		portdir_orig = None
		if portdir:
			portdir = normalize_path(portdir)
			portdir_orig = portdir
			overlays.append(portdir)
		try:
			port_ov = [normalize_path(i) for i in shlex_split(portdir_overlay)]
		except ValueError as e:
			#File "/usr/lib/python3.2/shlex.py", line 168, in read_token
			#	raise ValueError("No closing quotation")
			writemsg(_("!!! Invalid PORTDIR_OVERLAY:"
				" %s: %s\n") % (e, portdir_overlay), noiselevel=-1)
			port_ov = []
		overlays.extend(port_ov)
		default_repo_opts = {}
		if prepos['DEFAULT'].aliases is not None:
			default_repo_opts['aliases'] = \
				' '.join(prepos['DEFAULT'].aliases)
		if prepos['DEFAULT'].eclass_overrides is not None:
			default_repo_opts['eclass-overrides'] = \
				' '.join(prepos['DEFAULT'].eclass_overrides)
		if prepos['DEFAULT'].masters is not None:
			default_repo_opts['masters'] = \
				' '.join(prepos['DEFAULT'].masters)

		if overlays:
			# We need a copy of the original repos.conf data, since we're
			# going to modify the prepos dict and some of the RepoConfig
			# objects that we put in prepos may have to be discarded if
			# they get overridden by a repository with the same name but
			# a different location. This is common with repoman, for example,
			# when temporarily overriding an rsync repo with another copy
			# of the same repo from CVS.
			repos_conf = prepos.copy()
			#overlay priority is negative because we want them to be looked before any other repo
			base_priority = 0
			for ov in overlays:
				# Ignore missing directory for 'gentoo' so that
				# first sync with emerge-webrsync is possible.
				if isdir_raise_eaccess(ov) or \
					(base_priority == 0 and ov is portdir):
					repo_opts = default_repo_opts.copy()
					repo_opts['location'] = ov
					repo = RepoConfig(None, repo_opts, local_config=local_config)
					# repos_conf_opts contains options from repos.conf
					repos_conf_opts = repos_conf.get(repo.name)
					if repos_conf_opts is not None:
						# Selectively copy only the attributes which
						# repos.conf is allowed to override.
						for k in ('aliases', 'auto_sync', 'eclass_overrides',
							'force', 'masters', 'priority', 'sync_cvs_repo',
							'sync_depth',
							'sync_type', 'sync_umask', 'sync_uri', 'sync_user',
							):
							v = getattr(repos_conf_opts, k, None)
							if v is not None:
								setattr(repo, k, v)

					if repo.name in prepos:
						# Silently ignore when PORTDIR overrides the location
						# setting from the default repos.conf (bug #478544).
						old_location = prepos[repo.name].location
						if old_location is not None and \
							old_location != repo.location and \
							not (base_priority == 0 and
							old_location == default_portdir):
							ignored_map.setdefault(repo.name, []).append(old_location)
							ignored_location_map[old_location] = repo.name
							if old_location == portdir:
								portdir = repo.user_location

					if repo.priority is None:
						if base_priority == 0 and ov == portdir_orig:
							# If it's the original PORTDIR setting and it's not
							# in PORTDIR_OVERLAY, then it will be assigned a
							# special priority setting later.
							pass
						else:
							repo.priority = base_priority
							base_priority += 1

					prepos[repo.name] = repo
				else:

					if not portage._sync_mode:
						writemsg(_("!!! Invalid PORTDIR_OVERLAY (not a dir): '%s'\n") % ov, noiselevel=-1)

		return portdir

	@staticmethod
	def _parse(paths, prepos, ignored_map, ignored_location_map, local_config, portdir):
		"""Parse files in paths to load config"""
		parser = SafeConfigParser()

		# use read_file/readfp in order to control decoding of unicode
		try:
			# Python >=3.2
			read_file = parser.read_file
			source_kwarg = 'source'
		except AttributeError:
			read_file = parser.readfp
			source_kwarg = 'filename'

		recursive_paths = []
		for p in paths:
			if isinstance(p, basestring):
				recursive_paths.extend(_recursive_file_list(p))
			else:
				recursive_paths.append(p)

		for p in recursive_paths:
			if isinstance(p, basestring):
				f = None
				try:
					f = io.open(_unicode_encode(p,
						encoding=_encodings['fs'], errors='strict'),
						mode='r', encoding=_encodings['repo.content'],
						errors='replace')
				except EnvironmentError:
					pass
				else:
					# The 'source' keyword argument is needed since otherwise
					# ConfigParser in Python <3.3.3 may throw a TypeError
					# because it assumes that f.name is a native string rather
					# than binary when constructing error messages.
					kwargs = {source_kwarg: p}
					read_file(f, **portage._native_kwargs(kwargs))
				finally:
					if f is not None:
						f.close()
			elif isinstance(p, io.StringIO):
				kwargs = {source_kwarg: "<io.StringIO>"}
				read_file(p, **portage._native_kwargs(kwargs))
			else:
				raise TypeError("Unsupported type %r of element %r of 'paths' argument" % (type(p), p))

		prepos['DEFAULT'] = RepoConfig("DEFAULT",
			parser.defaults(), local_config=local_config)

		for sname in parser.sections():
			optdict = {}
			for oname in parser.options(sname):
				optdict[oname] = parser.get(sname, oname)

			repo = RepoConfig(sname, optdict, local_config=local_config)

			# Perform repos.conf sync variable validation
			portage.sync.validate_config(repo, logging)

			# For backward compatibility with locations set via PORTDIR and
			# PORTDIR_OVERLAY, delay validation of the location and repo.name
			# until after PORTDIR and PORTDIR_OVERLAY have been processed.
			prepos[sname] = repo

	def __init__(self, paths, settings):
		"""Load config from files in paths"""

		prepos = {}
		location_map = {}
		treemap = {}
		ignored_map = {}
		ignored_location_map = {}

		if "PORTAGE_REPOSITORIES" in settings:
			portdir = ""
			portdir_overlay = ""
			# deprecated portdir_sync
			portdir_sync = ""
		else:
			portdir = settings.get("PORTDIR", "")
			portdir_overlay = settings.get("PORTDIR_OVERLAY", "")
			# deprecated portdir_sync
			portdir_sync = settings.get("SYNC", "")

		try:
			self._parse(paths, prepos, ignored_map,
				ignored_location_map, settings.local_config,
				portdir)
		except ConfigParserError as e:
			writemsg(
				_("!!! Error while reading repo config file: %s\n") % e,
				noiselevel=-1)
			# The configparser state is unreliable (prone to quirky
			# exceptions) after it has thrown an error, so use empty
			# config and try to fall back to PORTDIR{,_OVERLAY}.
			prepos.clear()
			prepos['DEFAULT'] = RepoConfig('DEFAULT',
				{}, local_config=settings.local_config)
			location_map.clear()
			treemap.clear()
			ignored_map.clear()
			ignored_location_map.clear()

		default_portdir = os.path.join(os.sep,
			settings['EPREFIX'].lstrip(os.sep), 'usr', 'portage')

		# If PORTDIR_OVERLAY contains a repo with the same repo_name as
		# PORTDIR, then PORTDIR is overridden.
		portdir = self._add_repositories(portdir, portdir_overlay, prepos,
			ignored_map, ignored_location_map, settings.local_config,
			default_portdir)
		if portdir and portdir.strip():
			portdir = os.path.realpath(portdir)

		ignored_repos = tuple((repo_name, tuple(paths)) \
			for repo_name, paths in ignored_map.items())

		self.missing_repo_names = frozenset(repo.location
			for repo in prepos.values()
			if repo.location is not None and repo.missing_repo_name)

		# Do this before expanding aliases, so that location_map and
		# treemap consistently map unaliased names whenever available.
		for repo_name, repo in list(prepos.items()):
			if repo.location is None:
				if repo_name != 'DEFAULT':
					# Skip this warning for repoman (bug #474578).
					if settings.local_config and paths:
						writemsg_level("!!! %s\n" % _("Section '%s' in repos.conf is missing location attribute") %
							repo.name, level=logging.ERROR, noiselevel=-1)
					del prepos[repo_name]
					continue
			else:
				if not portage._sync_mode:
					if not isdir_raise_eaccess(repo.location):
						writemsg_level("!!! %s\n" % _("Section '%s' in repos.conf has location attribute set "
							"to nonexistent directory: '%s'") %
							(repo_name, repo.location), level=logging.ERROR, noiselevel=-1)

						# Ignore missing directory for 'gentoo' so that
						# first sync with emerge-webrsync is possible.
						if repo.name != 'gentoo':
							del prepos[repo_name]
							continue

					# After removing support for PORTDIR_OVERLAY, the following check can be:
					# if repo.missing_repo_name:
					if repo.missing_repo_name and repo.name != repo_name:
						writemsg_level("!!! %s\n" % _("Section '%s' in repos.conf refers to repository "
							"without repository name set in '%s'") %
							(repo_name, os.path.join(repo.location, REPO_NAME_LOC)), level=logging.ERROR, noiselevel=-1)
						del prepos[repo_name]
						continue

					if repo.name != repo_name:
						writemsg_level("!!! %s\n" % _("Section '%s' in repos.conf has name different "
							"from repository name '%s' set inside repository") %
							(repo_name, repo.name), level=logging.ERROR, noiselevel=-1)
						del prepos[repo_name]
						continue

				location_map[repo.location] = repo_name
				treemap[repo_name] = repo.location

		# Add alias mappings, but never replace unaliased mappings.
		for repo_name, repo in list(prepos.items()):
			names = set()
			names.add(repo_name)
			if repo.aliases:
				aliases = stack_lists([repo.aliases], incremental=True)
				names.update(aliases)

			for name in names:
				if name in prepos and prepos[name].location is not None:
					if name == repo_name:
						# unaliased names already handled earlier
						continue
					writemsg_level(_("!!! Repository name or alias '%s', " + \
						"defined for repository '%s', overrides " + \
						"existing alias or repository.\n") % (name, repo_name), level=logging.WARNING, noiselevel=-1)
					# Never replace an unaliased mapping with
					# an aliased mapping.
					continue
				prepos[name] = repo
				if repo.location is not None:
					if repo.location not in location_map:
						# Never replace an unaliased mapping with
						# an aliased mapping.
						location_map[repo.location] = name
					treemap[name] = repo.location

		main_repo = prepos['DEFAULT'].main_repo
		if main_repo is None or main_repo not in prepos:
			#setting main_repo if it was not set in repos.conf
			main_repo = location_map.get(portdir)
			if main_repo is not None:
				prepos['DEFAULT'].main_repo = main_repo
			else:
				prepos['DEFAULT'].main_repo = None
				if portdir and not portage._sync_mode:
					writemsg(_("!!! main-repo not set in DEFAULT and PORTDIR is empty.\n"), noiselevel=-1)

		if main_repo is not None and prepos[main_repo].priority is None:
			# This happens if main-repo has been set in repos.conf.
			prepos[main_repo].priority = -1000

		# DEPRECATED Backward compatible SYNC support for old mirrorselect.
		# Feb. 2, 2015.  Version 2.2.16
		if portdir_sync and main_repo is not None:
			writemsg(_("!!! SYNC setting found in make.conf.\n    "
				"This setting is Deprecated and no longer used.  "
				"Please ensure your 'sync-type' and 'sync-uri' are set correctly"
				" in /etc/portage/repos.conf/gentoo.conf\n"),
				noiselevel=-1)


		# Include repo.name in sort key, for predictable sorting
		# even when priorities are equal.
		prepos_order = sorted(prepos.items(),
			key=lambda r:(r[1].priority or 0, r[1].name))

		# filter duplicates from aliases, by only including
		# items where repo.name == key
		prepos_order = [repo.name for (key, repo) in prepos_order
			if repo.name == key and key != 'DEFAULT' and
			repo.location is not None]

		self.prepos = prepos
		self.prepos_order = prepos_order
		self.ignored_repos = ignored_repos
		self.location_map = location_map
		self.treemap = treemap
		self._prepos_changed = True
		self._repo_location_list = []

		#The 'masters' key currently contains repo names. Replace them with the matching RepoConfig.
		for repo_name, repo in prepos.items():
			if repo_name == "DEFAULT":
				continue
			if repo.masters is None:
				if self.mainRepo() and repo_name != self.mainRepo().name:
					repo.masters = self.mainRepo(),
				else:
					repo.masters = ()
			else:
				if repo.masters and isinstance(repo.masters[0], RepoConfig):
					# This one has already been processed
					# because it has an alias.
					continue
				master_repos = []
				for master_name in repo.masters:
					if master_name not in prepos:
						layout_filename = os.path.join(repo.user_location,
							"metadata", "layout.conf")
						writemsg_level(_("Unavailable repository '%s' " \
							"referenced by masters entry in '%s'\n") % \
							(master_name, layout_filename),
							level=logging.ERROR, noiselevel=-1)
					else:
						master_repos.append(prepos[master_name])
				repo.masters = tuple(master_repos)

		#The 'eclass_overrides' key currently contains repo names. Replace them with the matching repo paths.
		for repo_name, repo in prepos.items():
			if repo_name == "DEFAULT":
				continue

			eclass_locations = []
			eclass_locations.extend(master_repo.location for master_repo in repo.masters)
			# Only append the current repo to eclass_locations if it's not
			# there already. This allows masters to have more control over
			# eclass override order, which may be useful for scenarios in
			# which there is a plan to migrate eclasses to a master repo.
			if repo.location not in eclass_locations:
				eclass_locations.append(repo.location)

			if repo.eclass_overrides:
				for other_repo_name in repo.eclass_overrides:
					if other_repo_name in self.treemap:
						eclass_locations.append(self.get_location_for_name(other_repo_name))
					else:
						writemsg_level(_("Unavailable repository '%s' " \
							"referenced by eclass-overrides entry for " \
							"'%s'\n") % (other_repo_name, repo_name), \
							level=logging.ERROR, noiselevel=-1)
			repo.eclass_locations = tuple(eclass_locations)

		eclass_dbs = {}
		for repo_name, repo in prepos.items():
			if repo_name == "DEFAULT":
				continue

			eclass_db = None
			for eclass_location in repo.eclass_locations:
				tree_db = eclass_dbs.get(eclass_location)
				if tree_db is None:
					tree_db = eclass_cache.cache(eclass_location)
					eclass_dbs[eclass_location] = tree_db
				if eclass_db is None:
					eclass_db = tree_db.copy()
				else:
					eclass_db.append(tree_db)
			repo.eclass_db = eclass_db

		for repo_name, repo in prepos.items():
			if repo_name == "DEFAULT":
				continue

			if repo._masters_orig is None and self.mainRepo() and \
				repo.name != self.mainRepo().name and not portage._sync_mode:
				# TODO: Delete masters code in pym/portage/tests/resolver/ResolverPlayground.py when deleting this warning.
				writemsg_level("!!! %s\n" % _("Repository '%s' is missing masters attribute in '%s'") %
					(repo.name, os.path.join(repo.location, "metadata", "layout.conf")) +
					"!!! %s\n" % _("Set 'masters = %s' in this file for future compatibility") %
					self.mainRepo().name, level=logging.WARNING, noiselevel=-1)

		self._prepos_changed = True
		self._repo_location_list = []

		self._check_locations()

	def repoLocationList(self):
		"""Get a list of repositories location. Replaces PORTDIR_OVERLAY"""
		if self._prepos_changed:
			_repo_location_list = []
			for repo in self.prepos_order:
				if self.prepos[repo].location is not None:
					_repo_location_list.append(self.prepos[repo].location)
			self._repo_location_list = tuple(_repo_location_list)

			self._prepos_changed = False
		return self._repo_location_list

	def repoUserLocationList(self):
		"""Get a list of repositories location. Replaces PORTDIR_OVERLAY"""
		user_location_list = []
		for repo in self.prepos_order:
			if self.prepos[repo].location is not None:
				user_location_list.append(self.prepos[repo].user_location)
		return tuple(user_location_list)

	def mainRepoLocation(self):
		"""Returns the location of main repo"""
		main_repo = self.prepos['DEFAULT'].main_repo
		if main_repo is not None and main_repo in self.prepos:
			return self.prepos[main_repo].location
		else:
			return ''

	def mainRepo(self):
		"""Returns the main repo"""
		main_repo = self.prepos['DEFAULT'].main_repo
		if main_repo is None:
			return None
		return self.prepos[main_repo]

	def _check_locations(self):
		"""Check if repositories location are correct and show a warning message if not"""
		for (name, r) in self.prepos.items():
			if name != 'DEFAULT':
				if r.location is None:
					writemsg(_("!!! Location not set for repository %s\n") % name, noiselevel=-1)
				else:
					if not isdir_raise_eaccess(r.location) and not portage._sync_mode:
						self.prepos_order.remove(name)
						writemsg(_("!!! Invalid Repository Location"
							" (not a dir): '%s'\n") % r.location, noiselevel=-1)

	def repos_with_profiles(self):
		for repo_name in self.prepos_order:
			repo = self.prepos[repo_name]
			if repo.format != "unavailable":
				yield repo

	def get_name_for_location(self, location):
		return self.location_map[location]

	def get_location_for_name(self, repo_name):
		if repo_name is None:
			# This simplifies code in places where
			# we want to be able to pass in Atom.repo
			# even if it is None.
			return None
		return self.treemap[repo_name]

	def get_repo_for_location(self, location):
		return self.prepos[self.get_name_for_location(location)]

	def __setitem__(self, repo_name, repo):
		# self.prepos[repo_name] = repo
		raise NotImplementedError

	def __getitem__(self, repo_name):
		return self.prepos[repo_name]

	def __delitem__(self, repo_name):
		if repo_name == self.prepos['DEFAULT'].main_repo:
			self.prepos['DEFAULT'].main_repo = None
		location = self.prepos[repo_name].location
		del self.prepos[repo_name]
		if repo_name in self.prepos_order:
			self.prepos_order.remove(repo_name)
		for k, v in self.location_map.copy().items():
			if v == repo_name:
				del self.location_map[k]
		if repo_name in self.treemap:
			del self.treemap[repo_name]
		self._repo_location_list = tuple(x for x in self._repo_location_list if x != location)

	def __iter__(self):
		for repo_name in self.prepos_order:
			yield self.prepos[repo_name]

	def __contains__(self, repo_name):
		return repo_name in self.prepos

	def config_string(self):
		str_or_int_keys = ("auto_sync", "format", "location",
			"main_repo", "priority", "sync_cvs_repo",
			"sync_type", "sync_umask", "sync_uri", 'sync_user')
		str_tuple_keys = ("aliases", "eclass_overrides", "force")
		repo_config_tuple_keys = ("masters",)
		keys = str_or_int_keys + str_tuple_keys + repo_config_tuple_keys
		config_string = ""
		for repo_name, repo in sorted(self.prepos.items(), key=lambda x: (x[0] != "DEFAULT", x[0])):
			config_string += "\n[%s]\n" % repo_name
			for key in sorted(keys):
				if key == "main_repo" and repo_name != "DEFAULT":
					continue
				if getattr(repo, key) is not None:
					if key in str_or_int_keys:
						config_string += "%s = %s\n" % (key.replace("_", "-"), getattr(repo, key))
					elif key in str_tuple_keys:
						config_string += "%s = %s\n" % (key.replace("_", "-"), " ".join(getattr(repo, key)))
					elif key in repo_config_tuple_keys:
						config_string += "%s = %s\n" % (key.replace("_", "-"), " ".join(x.name for x in getattr(repo, key)))
		return config_string.lstrip("\n")

def load_repository_config(settings, extra_files=None):
	repoconfigpaths = []
	if "PORTAGE_REPOSITORIES" in settings:
		repoconfigpaths.append(io.StringIO(settings["PORTAGE_REPOSITORIES"]))
	else:
		if portage._not_installed:
			repoconfigpaths.append(os.path.join(PORTAGE_BASE_PATH, "cnf", "repos.conf"))
		else:
			repoconfigpaths.append(os.path.join(settings.global_config_path, "repos.conf"))
		repoconfigpaths.append(os.path.join(settings["PORTAGE_CONFIGROOT"], USER_CONFIG_PATH, "repos.conf"))
	if extra_files:
		repoconfigpaths.extend(extra_files)
	return RepoConfigLoader(repoconfigpaths, settings)

def _get_repo_name(repo_location, cached=None):
	if cached is not None:
		return cached
	name, missing = RepoConfig._read_repo_name(repo_location)
	if missing:
		return None
	return name

def parse_layout_conf(repo_location, repo_name=None):
	eapi = read_corresponding_eapi_file(os.path.join(repo_location, REPO_NAME_LOC))

	layout_filename = os.path.join(repo_location, "metadata", "layout.conf")
	layout_file = KeyValuePairFileLoader(layout_filename, None, None)
	layout_data, layout_errors = layout_file.load()

	data = {}

	# None indicates abscence of a masters setting, which later code uses
	# to trigger a backward compatibility fallback that sets an implicit
	# master. In order to avoid this fallback behavior, layout.conf can
	# explicitly set masters to an empty value, which will result in an
	# empty tuple here instead of None.
	masters = layout_data.get('masters')
	if masters is not None:
		masters = tuple(masters.split())
	data['masters'] = masters
	data['aliases'] = tuple(layout_data.get('aliases', '').split())

	data['allow-provide-virtual'] = \
		layout_data.get('allow-provide-virtuals', 'false').lower() == 'true'

	data['eapis-banned'] = tuple(layout_data.get('eapis-banned', '').split())
	data['eapis-deprecated'] = tuple(layout_data.get('eapis-deprecated', '').split())

	data['sign-commit'] = layout_data.get('sign-commits', 'false').lower() \
		== 'true'

	data['sign-manifest'] = layout_data.get('sign-manifests', 'true').lower() \
		== 'true'

	data['thin-manifest'] = layout_data.get('thin-manifests', 'false').lower() \
		== 'true'

	data['repo-name'] = _gen_valid_repo(layout_data.get('repo-name', ''))

	manifest_policy = layout_data.get('use-manifests', 'strict').lower()
	data['allow-missing-manifest'] = manifest_policy != 'strict'
	data['create-manifest'] = manifest_policy != 'false'
	data['disable-manifest'] = manifest_policy == 'false'

	# for compatibility w/ PMS, fallback to pms; but also check if the
	# cache exists or not.
	cache_formats = layout_data.get('cache-formats', '').lower().split()
	if not cache_formats:
		# Auto-detect cache formats, and prefer md5-cache if available.
		# This behavior was deployed in portage-2.1.11.14, so that the
		# default egencache format could eventually be changed to md5-dict
		# in portage-2.1.11.32. WARNING: Versions prior to portage-2.1.11.14
		# will NOT recognize md5-dict format unless it is explicitly
		# listed in layout.conf.
		cache_formats = []
		if os.path.isdir(os.path.join(repo_location, 'metadata', 'md5-cache')):
			cache_formats.append('md5-dict')
		if os.path.isdir(os.path.join(repo_location, 'metadata', 'cache')):
			cache_formats.append('pms')
	data['cache-formats'] = tuple(cache_formats)

	manifest_hashes = layout_data.get('manifest-hashes')
	if manifest_hashes is not None:
		manifest_hashes = frozenset(manifest_hashes.upper().split())
		if MANIFEST2_REQUIRED_HASH not in manifest_hashes:
			repo_name = _get_repo_name(repo_location, cached=repo_name)
			warnings.warn((_("Repository named '%(repo_name)s' has a "
				"'manifest-hashes' setting that does not contain "
				"the '%(hash)s' hash which is required by this "
				"portage version. You will have to upgrade portage "
				"if you want to generate valid manifests for this "
				"repository: %(layout_filename)s") %
				{"repo_name": repo_name or 'unspecified',
				"hash":MANIFEST2_REQUIRED_HASH,
				"layout_filename":layout_filename}),
				DeprecationWarning)
		unsupported_hashes = manifest_hashes.difference(
			MANIFEST2_HASH_FUNCTIONS)
		if unsupported_hashes:
			repo_name = _get_repo_name(repo_location, cached=repo_name)
			warnings.warn((_("Repository named '%(repo_name)s' has a "
				"'manifest-hashes' setting that contains one "
				"or more hash types '%(hashes)s' which are not supported by "
				"this portage version. You will have to upgrade "
				"portage if you want to generate valid manifests for "
				"this repository: %(layout_filename)s") %
				{"repo_name": repo_name or 'unspecified',
				"hashes":" ".join(sorted(unsupported_hashes)),
				"layout_filename":layout_filename}),
				DeprecationWarning)
	data['manifest-hashes'] = manifest_hashes

	data['update-changelog'] = layout_data.get('update-changelog', 'false').lower() \
		== 'true'

	raw_formats = layout_data.get('profile-formats')
	if raw_formats is None:
		if eapi_allows_directories_on_profile_level_and_repository_level(eapi):
			raw_formats = ('portage-1',)
		else:
			raw_formats = ('portage-1-compat',)
	else:
		raw_formats = set(raw_formats.split())
		unknown = raw_formats.difference(_valid_profile_formats)
		if unknown:
			repo_name = _get_repo_name(repo_location, cached=repo_name)
			warnings.warn((_("Repository named '%(repo_name)s' has unsupported "
				"profiles in use ('profile-formats = %(unknown_fmts)s' setting in "
				"'%(layout_filename)s; please upgrade portage.") %
				dict(repo_name=repo_name or 'unspecified',
				layout_filename=layout_filename,
				unknown_fmts=" ".join(unknown))),
				DeprecationWarning)
		raw_formats = tuple(raw_formats.intersection(_valid_profile_formats))
	data['profile-formats'] = raw_formats

	try:
		eapi = layout_data['profile_eapi_when_unspecified']
	except KeyError:
		pass
	else:
		if 'profile-default-eapi' not in raw_formats:
			warnings.warn((_("Repository named '%(repo_name)s' has "
				"profile_eapi_when_unspecified setting in "
				"'%(layout_filename)s', but 'profile-default-eapi' is "
				"not listed in the profile-formats field. Please "
				"report this issue to the repository maintainer.") %
				dict(repo_name=repo_name or 'unspecified',
				layout_filename=layout_filename)),
				SyntaxWarning)
		elif not portage.eapi_is_supported(eapi):
			warnings.warn((_("Repository named '%(repo_name)s' has "
				"unsupported EAPI '%(eapi)s' setting in "
				"'%(layout_filename)s'; please upgrade portage.") %
				dict(repo_name=repo_name or 'unspecified',
				eapi=eapi, layout_filename=layout_filename)),
				SyntaxWarning)
		else:
			data['profile_eapi_when_unspecified'] = eapi

	return data, layout_errors