git@vger.kernel.org list mirror (unofficial, one of many)
 help / color / mirror / code / Atom feed
69f1c815aac0cf99009640190b39721dbc896806 blob 23885 bytes (raw)

  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
 
#!/bin/sh

test_description='multi-pack-indexes'
. ./test-lib.sh

GIT_TEST_MULTI_PACK_INDEX=0
objdir=.git/objects

HASH_LEN=$(test_oid rawsz)

midx_read_expect () {
	NUM_PACKS=$1
	NUM_OBJECTS=$2
	NUM_CHUNKS=$3
	OBJECT_DIR=$4
	EXTRA_CHUNKS="$5"
	{
		cat <<-EOF &&
		header: 4d494458 1 $HASH_LEN $NUM_CHUNKS $NUM_PACKS
		chunks: pack-names oid-fanout oid-lookup object-offsets$EXTRA_CHUNKS
		num_objects: $NUM_OBJECTS
		packs:
		EOF
		if test $NUM_PACKS -ge 1
		then
			ls $OBJECT_DIR/pack/ | grep idx | sort
		fi &&
		printf "object-dir: $OBJECT_DIR\n"
	} >expect &&
	test-tool read-midx $OBJECT_DIR >actual &&
	test_cmp expect actual
}

test_expect_success 'setup' '
	test_oid_cache <<-EOF
	idxoff sha1:2999
	idxoff sha256:3739

	packnameoff sha1:652
	packnameoff sha256:940

	fanoutoff sha1:1
	fanoutoff sha256:3
	EOF
'

test_expect_success "don't write midx with no packs" '
	test_must_fail git multi-pack-index --object-dir=. write &&
	test_path_is_missing pack/multi-pack-index
'

test_expect_success SHA1 'warn if a midx contains no oid' '
	cp "$TEST_DIRECTORY"/t5319/no-objects.midx $objdir/pack/multi-pack-index &&
	test_must_fail git multi-pack-index verify &&
	rm $objdir/pack/multi-pack-index
'

generate_objects () {
	i=$1
	iii=$(printf '%03i' $i)
	{
		test-tool genrandom "bar" 200 &&
		test-tool genrandom "baz $iii" 50
	} >wide_delta_$iii &&
	{
		test-tool genrandom "foo"$i 100 &&
		test-tool genrandom "foo"$(( $i + 1 )) 100 &&
		test-tool genrandom "foo"$(( $i + 2 )) 100
	} >deep_delta_$iii &&
	{
		echo $iii &&
		test-tool genrandom "$iii" 8192
	} >file_$iii &&
	git update-index --add file_$iii deep_delta_$iii wide_delta_$iii
}

commit_and_list_objects () {
	{
		echo 101 &&
		test-tool genrandom 100 8192;
	} >file_101 &&
	git update-index --add file_101 &&
	tree=$(git write-tree) &&
	commit=$(git commit-tree $tree -p HEAD</dev/null) &&
	{
		echo $tree &&
		git ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\)	.*/\\1/"
	} >obj-list &&
	git reset --hard $commit
}

test_expect_success 'create objects' '
	test_commit initial &&
	for i in $(test_seq 1 5)
	do
		generate_objects $i
	done &&
	commit_and_list_objects
'

test_expect_success 'write midx with one v1 pack' '
	pack=$(git pack-objects --index-version=1 $objdir/pack/test <obj-list) &&
	test_when_finished rm $objdir/pack/test-$pack.pack \
		$objdir/pack/test-$pack.idx $objdir/pack/multi-pack-index &&
	git multi-pack-index --object-dir=$objdir write &&
	midx_read_expect 1 18 4 $objdir
'

midx_git_two_modes () {
	git -c core.multiPackIndex=false $1 >expect &&
	git -c core.multiPackIndex=true $1 >actual &&
	if [ "$2" = "sorted" ]
	then
		sort <expect >expect.sorted &&
		mv expect.sorted expect &&
		sort <actual >actual.sorted &&
		mv actual.sorted actual
	fi &&
	test_cmp expect actual
}

compare_results_with_midx () {
	MSG=$1
	test_expect_success "check normal git operations: $MSG" '
		midx_git_two_modes "rev-list --objects --all" &&
		midx_git_two_modes "log --raw" &&
		midx_git_two_modes "count-objects --verbose" &&
		midx_git_two_modes "cat-file --batch-all-objects --batch-check" &&
		midx_git_two_modes "cat-file --batch-all-objects --batch-check --unordered" sorted
	'
}

test_expect_success 'write midx with one v2 pack' '
	git pack-objects --index-version=2,0x40 $objdir/pack/test <obj-list &&
	git multi-pack-index --object-dir=$objdir write &&
	midx_read_expect 1 18 4 $objdir
'

compare_results_with_midx "one v2 pack"

test_expect_success 'corrupt idx reports errors' '
	idx=$(test-tool read-midx $objdir | grep "\.idx\$") &&
	mv $objdir/pack/$idx backup-$idx &&
	test_when_finished "mv backup-\$idx \$objdir/pack/\$idx" &&

	# This is the minimum size for a sha-1 based .idx; this lets
	# us pass perfunctory tests, but anything that actually opens and reads
	# the idx file will complain.
	test_copy_bytes 1064 <backup-$idx >$objdir/pack/$idx &&

	git -c core.multiPackIndex=true rev-list --objects --all 2>err &&
	grep "index unavailable" err
'

test_expect_success 'add more objects' '
	for i in $(test_seq 6 10)
	do
		generate_objects $i
	done &&
	commit_and_list_objects
'

test_expect_success 'write midx with two packs' '
	git pack-objects --index-version=1 $objdir/pack/test-2 <obj-list &&
	git multi-pack-index --object-dir=$objdir write &&
	midx_read_expect 2 34 4 $objdir
'

compare_results_with_midx "two packs"

test_expect_success 'write progress off for redirected stderr' '
	git multi-pack-index --object-dir=$objdir write 2>err &&
	test_line_count = 0 err
'

test_expect_success 'write force progress on for stderr' '
	GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir --progress write 2>err &&
	test_file_not_empty err
'

test_expect_success 'write with the --no-progress option' '
	GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir --no-progress write 2>err &&
	test_line_count = 0 err
'

test_expect_success 'add more packs' '
	for j in $(test_seq 11 20)
	do
		generate_objects $j &&
		commit_and_list_objects &&
		git pack-objects --index-version=2 $objdir/pack/test-pack <obj-list
	done
'

compare_results_with_midx "mixed mode (two packs + extra)"

test_expect_success 'write midx with twelve packs' '
	git multi-pack-index --object-dir=$objdir write &&
	midx_read_expect 12 74 4 $objdir
'

compare_results_with_midx "twelve packs"

test_expect_success 'warn on improper hash version' '
	git init --object-format=sha1 sha1 &&
	(
		cd sha1 &&
		git config core.multiPackIndex true &&
		test_commit 1 &&
		git repack -a &&
		git multi-pack-index write &&
		mv .git/objects/pack/multi-pack-index ../mpi-sha1
	) &&
	git init --object-format=sha256 sha256 &&
	(
		cd sha256 &&
		git config core.multiPackIndex true &&
		test_commit 1 &&
		git repack -a &&
		git multi-pack-index write &&
		mv .git/objects/pack/multi-pack-index ../mpi-sha256
	) &&
	(
		cd sha1 &&
		mv ../mpi-sha256 .git/objects/pack/multi-pack-index &&
		git log -1 2>err &&
		test_i18ngrep "multi-pack-index hash version 2 does not match version 1" err
	) &&
	(
		cd sha256 &&
		mv ../mpi-sha1 .git/objects/pack/multi-pack-index &&
		git log -1 2>err &&
		test_i18ngrep "multi-pack-index hash version 1 does not match version 2" err
	)
'

test_expect_success 'midx picks objects from preferred pack' '
	test_when_finished rm -rf preferred.git &&
	git init --bare preferred.git &&
	(
		cd preferred.git &&

		a=$(echo "a" | git hash-object -w --stdin) &&
		b=$(echo "b" | git hash-object -w --stdin) &&
		c=$(echo "c" | git hash-object -w --stdin) &&

		# Set up two packs, duplicating the object "B" at different
		# offsets.
		#
		# Note that the "BC" pack (the one we choose as preferred) sorts
		# lexically after the "AB" pack, meaning that omitting the
		# --preferred-pack argument would cause this test to fail (since
		# the MIDX code would select the copy of "b" in the "AB" pack).
		git pack-objects objects/pack/test-AB <<-EOF &&
		$a
		$b
		EOF
		bc=$(git pack-objects objects/pack/test-BC <<-EOF
		$b
		$c
		EOF
		) &&

		git multi-pack-index --object-dir=objects \
			write --preferred-pack=test-BC-$bc.idx 2>err &&
		test_must_be_empty err &&

		test-tool read-midx --show-objects objects >out &&

		ofs=$(git show-index <objects/pack/test-BC-$bc.idx | grep $b |
			cut -d" " -f1) &&
		printf "%s %s\tobjects/pack/test-BC-%s.pack\n" \
			"$b" "$ofs" "$bc" >expect &&
		grep ^$b out >actual &&

		test_cmp expect actual
	)
'

test_expect_success 'verify multi-pack-index success' '
	git multi-pack-index verify --object-dir=$objdir
'

test_expect_success 'verify progress off for redirected stderr' '
	git multi-pack-index verify --object-dir=$objdir 2>err &&
	test_line_count = 0 err
'

test_expect_success 'verify force progress on for stderr' '
	git multi-pack-index verify --object-dir=$objdir --progress 2>err &&
	test_file_not_empty err
'

test_expect_success 'verify with the --no-progress option' '
	git multi-pack-index verify --object-dir=$objdir --no-progress 2>err &&
	test_line_count = 0 err
'

# usage: corrupt_midx_and_verify <pos> <data> <objdir> <string>
corrupt_midx_and_verify() {
	POS=$1 &&
	DATA="${2:-\0}" &&
	OBJDIR=$3 &&
	GREPSTR="$4" &&
	COMMAND="$5" &&
	if test -z "$COMMAND"
	then
		COMMAND="git multi-pack-index verify --object-dir=$OBJDIR"
	fi &&
	FILE=$OBJDIR/pack/multi-pack-index &&
	chmod a+w $FILE &&
	test_when_finished mv midx-backup $FILE &&
	cp $FILE midx-backup &&
	printf "$DATA" | dd of="$FILE" bs=1 seek="$POS" conv=notrunc &&
	test_must_fail $COMMAND 2>test_err &&
	grep -v "^+" test_err >err &&
	test_i18ngrep "$GREPSTR" err
}

test_expect_success 'verify bad signature' '
	corrupt_midx_and_verify 0 "\00" $objdir \
		"multi-pack-index signature"
'

NUM_OBJECTS=74
MIDX_BYTE_VERSION=4
MIDX_BYTE_OID_VERSION=5
MIDX_BYTE_CHUNK_COUNT=6
MIDX_HEADER_SIZE=12
MIDX_BYTE_CHUNK_ID=$MIDX_HEADER_SIZE
MIDX_BYTE_CHUNK_OFFSET=$(($MIDX_HEADER_SIZE + 4))
MIDX_NUM_CHUNKS=5
MIDX_CHUNK_LOOKUP_WIDTH=12
MIDX_OFFSET_PACKNAMES=$(($MIDX_HEADER_SIZE + \
			 $MIDX_NUM_CHUNKS * $MIDX_CHUNK_LOOKUP_WIDTH))
MIDX_BYTE_PACKNAME_ORDER=$(($MIDX_OFFSET_PACKNAMES + 2))
MIDX_OFFSET_OID_FANOUT=$(($MIDX_OFFSET_PACKNAMES + $(test_oid packnameoff)))
MIDX_OID_FANOUT_WIDTH=4
MIDX_BYTE_OID_FANOUT_ORDER=$((MIDX_OFFSET_OID_FANOUT + 250 * $MIDX_OID_FANOUT_WIDTH + $(test_oid fanoutoff)))
MIDX_OFFSET_OID_LOOKUP=$(($MIDX_OFFSET_OID_FANOUT + 256 * $MIDX_OID_FANOUT_WIDTH))
MIDX_BYTE_OID_LOOKUP=$(($MIDX_OFFSET_OID_LOOKUP + 16 * $HASH_LEN))
MIDX_OFFSET_OBJECT_OFFSETS=$(($MIDX_OFFSET_OID_LOOKUP + $NUM_OBJECTS * $HASH_LEN))
MIDX_OFFSET_WIDTH=8
MIDX_BYTE_PACK_INT_ID=$(($MIDX_OFFSET_OBJECT_OFFSETS + 16 * $MIDX_OFFSET_WIDTH + 2))
MIDX_BYTE_OFFSET=$(($MIDX_OFFSET_OBJECT_OFFSETS + 16 * $MIDX_OFFSET_WIDTH + 6))

test_expect_success 'verify bad version' '
	corrupt_midx_and_verify $MIDX_BYTE_VERSION "\00" $objdir \
		"multi-pack-index version"
'

test_expect_success 'verify bad OID version' '
	corrupt_midx_and_verify $MIDX_BYTE_OID_VERSION "\03" $objdir \
		"hash version"
'

test_expect_success 'verify truncated chunk count' '
	corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\01" $objdir \
		"final chunk has non-zero id"
'

test_expect_success 'verify extended chunk count' '
	corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\07" $objdir \
		"terminating chunk id appears earlier than expected"
'

test_expect_success 'verify missing required chunk' '
	corrupt_midx_and_verify $MIDX_BYTE_CHUNK_ID "\01" $objdir \
		"missing required"
'

test_expect_success 'verify invalid chunk offset' '
	corrupt_midx_and_verify $MIDX_BYTE_CHUNK_OFFSET "\01" $objdir \
		"improper chunk offset(s)"
'

test_expect_success 'verify packnames out of order' '
	corrupt_midx_and_verify $MIDX_BYTE_PACKNAME_ORDER "z" $objdir \
		"pack names out of order"
'

test_expect_success 'verify packnames out of order' '
	corrupt_midx_and_verify $MIDX_BYTE_PACKNAME_ORDER "a" $objdir \
		"failed to load pack"
'

test_expect_success 'verify oid fanout out of order' '
	corrupt_midx_and_verify $MIDX_BYTE_OID_FANOUT_ORDER "\01" $objdir \
		"oid fanout out of order"
'

test_expect_success 'verify oid lookup out of order' '
	corrupt_midx_and_verify $MIDX_BYTE_OID_LOOKUP "\00" $objdir \
		"oid lookup out of order"
'

test_expect_success 'verify incorrect pack-int-id' '
	corrupt_midx_and_verify $MIDX_BYTE_PACK_INT_ID "\07" $objdir \
		"bad pack-int-id"
'

test_expect_success 'verify incorrect offset' '
	corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\377" $objdir \
		"incorrect object offset"
'

test_expect_success 'git-fsck incorrect offset' '
	corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\377" $objdir \
		"incorrect object offset" \
		"git -c core.multipackindex=true fsck"
'

test_expect_success 'repack progress off for redirected stderr' '
	GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir repack 2>err &&
	test_line_count = 0 err
'

test_expect_success 'repack force progress on for stderr' '
	GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir --progress repack 2>err &&
	test_file_not_empty err
'

test_expect_success 'repack with the --no-progress option' '
	GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir --no-progress repack 2>err &&
	test_line_count = 0 err
'

test_expect_success 'repack removes multi-pack-index when deleting packs' '
	test_path_is_file $objdir/pack/multi-pack-index &&
	# Set GIT_TEST_MULTI_PACK_INDEX to 0 to avoid writing a new
	# multi-pack-index after repacking, but set "core.multiPackIndex" to
	# true so that "git repack" can read the existing MIDX.
	GIT_TEST_MULTI_PACK_INDEX=0 git -c core.multiPackIndex repack -adf &&
	test_path_is_missing $objdir/pack/multi-pack-index
'

test_expect_success 'repack preserves multi-pack-index when creating packs' '
	git init preserve &&
	test_when_finished "rm -fr preserve" &&
	(
		cd preserve &&
		packdir=.git/objects/pack &&
		midx=$packdir/multi-pack-index &&

		test_commit 1 &&
		pack1=$(git pack-objects --all $packdir/pack) &&
		touch $packdir/pack-$pack1.keep &&
		test_commit 2 &&
		pack2=$(git pack-objects --revs $packdir/pack) &&
		touch $packdir/pack-$pack2.keep &&

		git multi-pack-index write &&
		cp $midx $midx.bak &&

		cat >pack-input <<-EOF &&
		HEAD
		^HEAD~1
		EOF
		test_commit 3 &&
		pack3=$(git pack-objects --revs $packdir/pack <pack-input) &&
		test_commit 4 &&
		pack4=$(git pack-objects --revs $packdir/pack <pack-input) &&

		GIT_TEST_MULTI_PACK_INDEX=0 git -c core.multiPackIndex repack -ad &&
		ls -la $packdir &&
		test_path_is_file $packdir/pack-$pack1.pack &&
		test_path_is_file $packdir/pack-$pack2.pack &&
		test_path_is_missing $packdir/pack-$pack3.pack &&
		test_path_is_missing $packdir/pack-$pack4.pack &&
		test_cmp_bin $midx.bak $midx
	)
'

compare_results_with_midx "after repack"

test_expect_success 'multi-pack-index and pack-bitmap' '
	GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 \
		git -c repack.writeBitmaps=true repack -ad &&
	git multi-pack-index write &&
	git rev-list --test-bitmap HEAD
'

test_expect_success 'multi-pack-index and alternates' '
	git init --bare alt.git &&
	echo $(pwd)/alt.git/objects >.git/objects/info/alternates &&
	echo content1 >file1 &&
	altblob=$(GIT_DIR=alt.git git hash-object -w file1) &&
	git cat-file blob $altblob &&
	git rev-list --all
'

compare_results_with_midx "with alternate (local midx)"

test_expect_success 'multi-pack-index in an alternate' '
	mv .git/objects/pack/* alt.git/objects/pack &&
	test_commit add_local_objects &&
	git repack --local &&
	git multi-pack-index write &&
	midx_read_expect 1 3 4 $objdir &&
	git reset --hard HEAD~1 &&
	rm -f .git/objects/pack/*
'

compare_results_with_midx "with alternate (remote midx)"

# usage: corrupt_data <file> <pos> [<data>]
corrupt_data () {
	file=$1
	pos=$2
	data="${3:-\0}"
	printf "$data" | dd of="$file" bs=1 seek="$pos" conv=notrunc
}

# Force 64-bit offsets by manipulating the idx file.
# This makes the IDX file _incorrect_ so be careful to clean up after!
test_expect_success 'force some 64-bit offsets with pack-objects' '
	mkdir objects64 &&
	mkdir objects64/pack &&
	for i in $(test_seq 1 11)
	do
		generate_objects 11
	done &&
	commit_and_list_objects &&
	pack64=$(git pack-objects --index-version=2,0x40 objects64/pack/test-64 <obj-list) &&
	idx64=objects64/pack/test-64-$pack64.idx &&
	chmod u+w $idx64 &&
	corrupt_data $idx64 $(test_oid idxoff) "\02" &&
	midx64=$(git multi-pack-index --object-dir=objects64 write) &&
	midx_read_expect 1 63 5 objects64 " large-offsets"
'

test_expect_success 'verify multi-pack-index with 64-bit offsets' '
	git multi-pack-index verify --object-dir=objects64
'

NUM_OBJECTS=63
MIDX_OFFSET_OID_FANOUT=$((MIDX_OFFSET_PACKNAMES + 54))
MIDX_OFFSET_OID_LOOKUP=$((MIDX_OFFSET_OID_FANOUT + 256 * $MIDX_OID_FANOUT_WIDTH))
MIDX_OFFSET_OBJECT_OFFSETS=$(($MIDX_OFFSET_OID_LOOKUP + $NUM_OBJECTS * $HASH_LEN))
MIDX_OFFSET_LARGE_OFFSETS=$(($MIDX_OFFSET_OBJECT_OFFSETS + $NUM_OBJECTS * $MIDX_OFFSET_WIDTH))
MIDX_BYTE_LARGE_OFFSET=$(($MIDX_OFFSET_LARGE_OFFSETS + 3))

test_expect_success 'verify incorrect 64-bit offset' '
	corrupt_midx_and_verify $MIDX_BYTE_LARGE_OFFSET "\07" objects64 \
		"incorrect object offset"
'

test_expect_success 'setup expire tests' '
	mkdir dup &&
	(
		cd dup &&
		git init &&
		test-tool genrandom "data" 4096 >large_file.txt &&
		git update-index --add large_file.txt &&
		for i in $(test_seq 1 20)
		do
			test_commit $i
		done &&
		git branch A HEAD &&
		git branch B HEAD~8 &&
		git branch C HEAD~13 &&
		git branch D HEAD~16 &&
		git branch E HEAD~18 &&
		git pack-objects --revs .git/objects/pack/pack-A <<-EOF &&
		refs/heads/A
		^refs/heads/B
		EOF
		git pack-objects --revs .git/objects/pack/pack-B <<-EOF &&
		refs/heads/B
		^refs/heads/C
		EOF
		git pack-objects --revs .git/objects/pack/pack-C <<-EOF &&
		refs/heads/C
		^refs/heads/D
		EOF
		git pack-objects --revs .git/objects/pack/pack-D <<-EOF &&
		refs/heads/D
		^refs/heads/E
		EOF
		git pack-objects --revs .git/objects/pack/pack-E <<-EOF &&
		refs/heads/E
		EOF
		git multi-pack-index write &&
		cp -r .git/objects/pack .git/objects/pack-backup
	)
'

test_expect_success 'expire does not remove any packs' '
	(
		cd dup &&
		ls .git/objects/pack >expect &&
		git multi-pack-index expire &&
		ls .git/objects/pack >actual &&
		test_cmp expect actual
	)
'

test_expect_success 'expire progress off for redirected stderr' '
	(
		cd dup &&
		git multi-pack-index expire 2>err &&
		test_line_count = 0 err
	)
'

test_expect_success 'expire force progress on for stderr' '
	(
		cd dup &&
		GIT_PROGRESS_DELAY=0 git multi-pack-index --progress expire 2>err &&
		test_file_not_empty err
	)
'

test_expect_success 'expire with the --no-progress option' '
	(
		cd dup &&
		GIT_PROGRESS_DELAY=0 git multi-pack-index --no-progress expire 2>err &&
		test_line_count = 0 err
	)
'

test_expect_success 'expire removes unreferenced packs' '
	(
		cd dup &&
		git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
		refs/heads/A
		^refs/heads/C
		EOF
		git multi-pack-index write &&
		ls .git/objects/pack | grep -v -e pack-[AB] >expect &&
		git multi-pack-index expire &&
		ls .git/objects/pack >actual &&
		test_cmp expect actual &&
		ls .git/objects/pack/ | grep idx >expect-idx &&
		test-tool read-midx .git/objects | grep idx >actual-midx &&
		test_cmp expect-idx actual-midx &&
		git multi-pack-index verify &&
		git fsck
	)
'

test_expect_success 'repack with minimum size does not alter existing packs' '
	(
		cd dup &&
		rm -rf .git/objects/pack &&
		mv .git/objects/pack-backup .git/objects/pack &&
		test-tool chmtime =-5 .git/objects/pack/pack-D* &&
		test-tool chmtime =-4 .git/objects/pack/pack-C* &&
		test-tool chmtime =-3 .git/objects/pack/pack-B* &&
		test-tool chmtime =-2 .git/objects/pack/pack-A* &&
		ls .git/objects/pack >expect &&
		MINSIZE=$(test-tool path-utils file-size .git/objects/pack/*pack | sort -n | head -n 1) &&
		git multi-pack-index repack --batch-size=$MINSIZE &&
		ls .git/objects/pack >actual &&
		test_cmp expect actual
	)
'

test_expect_success 'repack respects repack.packKeptObjects=false' '
	test_when_finished rm -f dup/.git/objects/pack/*keep &&
	(
		cd dup &&
		ls .git/objects/pack/*idx >idx-list &&
		test_line_count = 5 idx-list &&
		ls .git/objects/pack/*.pack | sed "s/\.pack/.keep/" >keep-list &&
		test_line_count = 5 keep-list &&
		for keep in $(cat keep-list)
		do
			touch $keep || return 1
		done &&
		git multi-pack-index repack --batch-size=0 &&
		ls .git/objects/pack/*idx >idx-list &&
		test_line_count = 5 idx-list &&
		test-tool read-midx .git/objects | grep idx >midx-list &&
		test_line_count = 5 midx-list &&
		THIRD_SMALLEST_SIZE=$(test-tool path-utils file-size .git/objects/pack/*pack | sort -n | sed -n 3p) &&
		BATCH_SIZE=$((THIRD_SMALLEST_SIZE + 1)) &&
		git multi-pack-index repack --batch-size=$BATCH_SIZE &&
		ls .git/objects/pack/*idx >idx-list &&
		test_line_count = 5 idx-list &&
		test-tool read-midx .git/objects | grep idx >midx-list &&
		test_line_count = 5 midx-list
	)
'

test_expect_success 'repack creates a new pack' '
	(
		cd dup &&
		ls .git/objects/pack/*idx >idx-list &&
		test_line_count = 5 idx-list &&
		THIRD_SMALLEST_SIZE=$(test-tool path-utils file-size .git/objects/pack/*pack | sort -n | head -n 3 | tail -n 1) &&
		BATCH_SIZE=$(($THIRD_SMALLEST_SIZE + 1)) &&
		git multi-pack-index repack --batch-size=$BATCH_SIZE &&
		ls .git/objects/pack/*idx >idx-list &&
		test_line_count = 6 idx-list &&
		test-tool read-midx .git/objects | grep idx >midx-list &&
		test_line_count = 6 midx-list
	)
'

test_expect_success 'expire removes repacked packs' '
	(
		cd dup &&
		ls -al .git/objects/pack/*pack &&
		ls -S .git/objects/pack/*pack | head -n 4 >expect &&
		git multi-pack-index expire &&
		ls -S .git/objects/pack/*pack >actual &&
		test_cmp expect actual &&
		test-tool read-midx .git/objects | grep idx >midx-list &&
		test_line_count = 4 midx-list
	)
'

test_expect_success 'expire works when adding new packs' '
	(
		cd dup &&
		git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
		refs/heads/A
		^refs/heads/B
		EOF
		git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
		refs/heads/B
		^refs/heads/C
		EOF
		git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
		refs/heads/C
		^refs/heads/D
		EOF
		git multi-pack-index write &&
		git pack-objects --revs .git/objects/pack/a-pack <<-EOF &&
		refs/heads/D
		^refs/heads/E
		EOF
		git multi-pack-index write &&
		git pack-objects --revs .git/objects/pack/z-pack <<-EOF &&
		refs/heads/E
		EOF
		git multi-pack-index expire &&
		ls .git/objects/pack/ | grep idx >expect &&
		test-tool read-midx .git/objects | grep idx >actual &&
		test_cmp expect actual &&
		git multi-pack-index verify
	)
'

test_expect_success 'expire respects .keep files' '
	(
		cd dup &&
		git pack-objects --revs .git/objects/pack/pack-all <<-EOF &&
		refs/heads/A
		EOF
		git multi-pack-index write &&
		PACKA=$(ls .git/objects/pack/a-pack*\.pack | sed s/\.pack\$//) &&
		touch $PACKA.keep &&
		git multi-pack-index expire &&
		test_path_is_file $PACKA.idx &&
		test_path_is_file $PACKA.keep &&
		test_path_is_file $PACKA.pack &&
		test-tool read-midx .git/objects | grep idx >midx-list &&
		test_line_count = 2 midx-list
	)
'

test_expect_success 'repack --batch-size=0 repacks everything' '
	cp -r dup dup2 &&
	(
		cd dup &&
		rm .git/objects/pack/*.keep &&
		ls .git/objects/pack/*idx >idx-list &&
		test_line_count = 2 idx-list &&
		git multi-pack-index repack --batch-size=0 &&
		ls .git/objects/pack/*idx >idx-list &&
		test_line_count = 3 idx-list &&
		test-tool read-midx .git/objects | grep idx >midx-list &&
		test_line_count = 3 midx-list &&
		git multi-pack-index expire &&
		ls -al .git/objects/pack/*idx >idx-list &&
		test_line_count = 1 idx-list &&
		git multi-pack-index repack --batch-size=0 &&
		ls -al .git/objects/pack/*idx >new-idx-list &&
		test_cmp idx-list new-idx-list
	)
'

test_expect_success 'repack --batch-size=<large> repacks everything' '
	(
		cd dup2 &&
		rm .git/objects/pack/*.keep &&
		ls .git/objects/pack/*idx >idx-list &&
		test_line_count = 2 idx-list &&
		git multi-pack-index repack --batch-size=2000000 &&
		ls .git/objects/pack/*idx >idx-list &&
		test_line_count = 3 idx-list &&
		test-tool read-midx .git/objects | grep idx >midx-list &&
		test_line_count = 3 midx-list &&
		git multi-pack-index expire &&
		ls -al .git/objects/pack/*idx >idx-list &&
		test_line_count = 1 idx-list
	)
'

test_expect_success 'load reverse index when missing .idx, .pack' '
	git init repo &&
	test_when_finished "rm -fr repo" &&
	(
		cd repo &&

		git config core.multiPackIndex true &&

		test_commit base &&
		git repack -ad &&
		git multi-pack-index write &&

		git rev-parse HEAD >tip &&
		pack=$(ls .git/objects/pack/pack-*.pack) &&
		idx=$(ls .git/objects/pack/pack-*.idx) &&

		mv $idx $idx.bak &&
		git cat-file --batch-check="%(objectsize:disk)" <tip &&

		mv $idx.bak $idx &&

		mv $pack $pack.bak &&
		git cat-file --batch-check="%(objectsize:disk)" <tip
	)
'

test_done
debug log:

solving 69f1c815aa ...
found 69f1c815aa in git.git.git

git@vger.kernel.org list mirror (unofficial, one of many)

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://public-inbox.org/git
	git clone --mirror http://ou63pmih66umazou.onion/git
	git clone --mirror http://czquwvybam4bgbro.onion/git
	git clone --mirror http://hjrcffqmbrq6wope.onion/git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V1 git git/ https://public-inbox.org/git \
		git@vger.kernel.org
	public-inbox-index git

Example config snippet for mirrors.
Newsgroups are available over NNTP:
	nntp://news.public-inbox.org/inbox.comp.version-control.git
	nntp://7fh6tueqddpjyxjmgtdiueylzoqt6pt7hec3pukyptlmohoowvhde4yd.onion/inbox.comp.version-control.git
	nntp://ie5yzdi7fg72h7s4sdcztq5evakq23rdt33mfyfcddc5u3ndnw24ogqd.onion/inbox.comp.version-control.git
	nntp://4uok3hntl7oi7b4uf4rtfwefqeexfzil2w6kgk2jn5z2f764irre7byd.onion/inbox.comp.version-control.git
	nntp://news.gmane.io/gmane.comp.version-control.git
 note: .onion URLs require Tor: https://www.torproject.org/

code repositories for project(s) associated with this inbox:

	https://80x24.org/mirrors/git.git

AGPL code for this site: git clone https://public-inbox.org/public-inbox.git