summaryrefslogtreecommitdiff
path: root/t/t0410-partial-clone.sh
blob: a5ebdf9ff3cd79091de98c8aca7b27bfcda94c2c (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
#!/bin/sh

test_description='partial clone'

. ./test-lib.sh

delete_object () {
	rm $1/.git/objects/$(echo $2 | sed -e 's|^..|&/|')
}

pack_as_from_promisor () {
	HASH=$(git -C repo pack-objects .git/objects/pack/pack) &&
	>repo/.git/objects/pack/pack-$HASH.promisor &&
	echo $HASH
}

promise_and_delete () {
	HASH=$(git -C repo rev-parse "$1") &&
	git -C repo tag -a -m message my_annotated_tag "$HASH" &&
	git -C repo rev-parse my_annotated_tag | pack_as_from_promisor &&
	# tag -d prints a message to stdout, so redirect it
	git -C repo tag -d my_annotated_tag >/dev/null &&
	delete_object repo "$HASH"
}

test_expect_success 'extensions.partialclone without filter' '
	test_create_repo server &&
	git clone --filter="blob:none" "file://$(pwd)/server" client &&
	git -C client config --unset remote.origin.partialclonefilter &&
	git -C client fetch origin
'

test_expect_success 'convert shallow clone to partial clone' '
	rm -fr server client &&
	test_create_repo server &&
	test_commit -C server my_commit 1 &&
	test_commit -C server my_commit2 1 &&
	git clone --depth=1 "file://$(pwd)/server" client &&
	git -C client fetch --unshallow --filter="blob:none" &&
	test_cmp_config -C client true remote.origin.promisor &&
	test_cmp_config -C client blob:none remote.origin.partialclonefilter &&
	test_cmp_config -C client 1 core.repositoryformatversion
'

test_expect_success SHA1 'convert to partial clone with noop extension' '
	rm -fr server client &&
	test_create_repo server &&
	test_commit -C server my_commit 1 &&
	test_commit -C server my_commit2 1 &&
	git clone --depth=1 "file://$(pwd)/server" client &&
	test_cmp_config -C client 0 core.repositoryformatversion &&
	git -C client config extensions.noop true &&
	git -C client fetch --unshallow --filter="blob:none"
'

test_expect_success SHA1 'converting to partial clone fails with unrecognized extension' '
	rm -fr server client &&
	test_create_repo server &&
	test_commit -C server my_commit 1 &&
	test_commit -C server my_commit2 1 &&
	git clone --depth=1 "file://$(pwd)/server" client &&
	test_cmp_config -C client 0 core.repositoryformatversion &&
	git -C client config extensions.nonsense true &&
	test_must_fail git -C client fetch --unshallow --filter="blob:none"
'

test_expect_success 'missing reflog object, but promised by a commit, passes fsck' '
	rm -rf repo &&
	test_create_repo repo &&
	test_commit -C repo my_commit &&

	A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
	C=$(git -C repo commit-tree -m c -p $A HEAD^{tree}) &&

	# Reference $A only from reflog, and delete it
	git -C repo branch my_branch "$A" &&
	git -C repo branch -f my_branch my_commit &&
	delete_object repo "$A" &&

	# State that we got $C, which refers to $A, from promisor
	printf "$C\n" | pack_as_from_promisor &&

	# Normally, it fails
	test_must_fail git -C repo fsck &&

	# But with the extension, it succeeds
	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "arbitrary string" &&
	git -C repo fsck
'

test_expect_success 'missing reflog object, but promised by a tag, passes fsck' '
	rm -rf repo &&
	test_create_repo repo &&
	test_commit -C repo my_commit &&

	A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
	git -C repo tag -a -m d my_tag_name $A &&
	T=$(git -C repo rev-parse my_tag_name) &&
	git -C repo tag -d my_tag_name &&

	# Reference $A only from reflog, and delete it
	git -C repo branch my_branch "$A" &&
	git -C repo branch -f my_branch my_commit &&
	delete_object repo "$A" &&

	# State that we got $T, which refers to $A, from promisor
	printf "$T\n" | pack_as_from_promisor &&

	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "arbitrary string" &&
	git -C repo fsck
'

test_expect_success 'missing reflog object alone fails fsck, even with extension set' '
	rm -rf repo &&
	test_create_repo repo &&
	test_commit -C repo my_commit &&

	A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
	B=$(git -C repo commit-tree -m b HEAD^{tree}) &&

	# Reference $A only from reflog, and delete it
	git -C repo branch my_branch "$A" &&
	git -C repo branch -f my_branch my_commit &&
	delete_object repo "$A" &&

	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "arbitrary string" &&
	test_must_fail git -C repo fsck
'

test_expect_success 'missing ref object, but promised, passes fsck' '
	rm -rf repo &&
	test_create_repo repo &&
	test_commit -C repo my_commit &&

	A=$(git -C repo commit-tree -m a HEAD^{tree}) &&

	# Reference $A only from ref
	git -C repo branch my_branch "$A" &&
	promise_and_delete "$A" &&

	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "arbitrary string" &&
	git -C repo fsck
'

test_expect_success 'missing object, but promised, passes fsck' '
	rm -rf repo &&
	test_create_repo repo &&
	test_commit -C repo 1 &&
	test_commit -C repo 2 &&
	test_commit -C repo 3 &&
	git -C repo tag -a annotated_tag -m "annotated tag" &&

	C=$(git -C repo rev-parse 1) &&
	T=$(git -C repo rev-parse 2^{tree}) &&
	B=$(git hash-object repo/3.t) &&
	AT=$(git -C repo rev-parse annotated_tag) &&

	promise_and_delete "$C" &&
	promise_and_delete "$T" &&
	promise_and_delete "$B" &&
	promise_and_delete "$AT" &&

	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "arbitrary string" &&
	git -C repo fsck
'

test_expect_success 'missing CLI object, but promised, passes fsck' '
	rm -rf repo &&
	test_create_repo repo &&
	test_commit -C repo my_commit &&

	A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
	promise_and_delete "$A" &&

	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "arbitrary string" &&
	git -C repo fsck "$A"
'

test_expect_success 'fetching of missing objects' '
	rm -rf repo &&
	test_create_repo server &&
	test_commit -C server foo &&
	git -C server repack -a -d --write-bitmap-index &&

	git clone "file://$(pwd)/server" repo &&
	HASH=$(git -C repo rev-parse foo) &&
	rm -rf repo/.git/objects/* &&

	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "origin" &&
	git -C repo cat-file -p "$HASH" &&

	# Ensure that the .promisor file is written, and check that its
	# associated packfile contains the object
	ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
	test_line_count = 1 promisorlist &&
	IDX=$(sed "s/promisor$/idx/" promisorlist) &&
	git verify-pack --verbose "$IDX" >out &&
	grep "$HASH" out
'

test_expect_success 'fetching of missing objects works with ref-in-want enabled' '
	# ref-in-want requires protocol version 2
	git -C server config protocol.version 2 &&
	git -C server config uploadpack.allowrefinwant 1 &&
	git -C repo config protocol.version 2 &&

	rm -rf repo/.git/objects/* &&
	rm -f trace &&
	GIT_TRACE_PACKET="$(pwd)/trace" git -C repo cat-file -p "$HASH" &&
	grep "git< fetch=.*ref-in-want" trace
'

test_expect_success 'fetching of missing objects from another promisor remote' '
	git clone "file://$(pwd)/server" server2 &&
	test_commit -C server2 bar &&
	git -C server2 repack -a -d --write-bitmap-index &&
	HASH2=$(git -C server2 rev-parse bar) &&

	git -C repo remote add server2 "file://$(pwd)/server2" &&
	git -C repo config remote.server2.promisor true &&
	git -C repo cat-file -p "$HASH2" &&

	git -C repo fetch server2 &&
	rm -rf repo/.git/objects/* &&
	git -C repo cat-file -p "$HASH2" &&

	# Ensure that the .promisor file is written, and check that its
	# associated packfile contains the object
	ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
	test_line_count = 1 promisorlist &&
	IDX=$(sed "s/promisor$/idx/" promisorlist) &&
	git verify-pack --verbose "$IDX" >out &&
	grep "$HASH2" out
'

test_expect_success 'fetching of missing objects configures a promisor remote' '
	git clone "file://$(pwd)/server" server3 &&
	test_commit -C server3 baz &&
	git -C server3 repack -a -d --write-bitmap-index &&
	HASH3=$(git -C server3 rev-parse baz) &&
	git -C server3 config uploadpack.allowfilter 1 &&

	rm repo/.git/objects/pack/pack-*.promisor &&

	git -C repo remote add server3 "file://$(pwd)/server3" &&
	git -C repo fetch --filter="blob:none" server3 $HASH3 &&

	test_cmp_config -C repo true remote.server3.promisor &&

	# Ensure that the .promisor file is written, and check that its
	# associated packfile contains the object
	ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
	test_line_count = 1 promisorlist &&
	IDX=$(sed "s/promisor$/idx/" promisorlist) &&
	git verify-pack --verbose "$IDX" >out &&
	grep "$HASH3" out
'

test_expect_success 'fetching of missing blobs works' '
	rm -rf server server2 repo &&
	rm -rf server server3 repo &&
	test_create_repo server &&
	test_commit -C server foo &&
	git -C server repack -a -d --write-bitmap-index &&

	git clone "file://$(pwd)/server" repo &&
	git hash-object repo/foo.t >blobhash &&
	rm -rf repo/.git/objects/* &&

	git -C server config uploadpack.allowanysha1inwant 1 &&
	git -C server config uploadpack.allowfilter 1 &&
	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "origin" &&

	git -C repo cat-file -p $(cat blobhash)
'

test_expect_success 'fetching of missing trees does not fetch blobs' '
	rm -rf server repo &&
	test_create_repo server &&
	test_commit -C server foo &&
	git -C server repack -a -d --write-bitmap-index &&

	git clone "file://$(pwd)/server" repo &&
	git -C repo rev-parse foo^{tree} >treehash &&
	git hash-object repo/foo.t >blobhash &&
	rm -rf repo/.git/objects/* &&

	git -C server config uploadpack.allowanysha1inwant 1 &&
	git -C server config uploadpack.allowfilter 1 &&
	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "origin" &&
	git -C repo cat-file -p $(cat treehash) &&

	# Ensure that the tree, but not the blob, is fetched
	git -C repo rev-list --objects --missing=print $(cat treehash) >objects &&
	grep "^$(cat treehash)" objects &&
	grep "^[?]$(cat blobhash)" objects
'

test_expect_success 'rev-list stops traversal at missing and promised commit' '
	rm -rf repo &&
	test_create_repo repo &&
	test_commit -C repo foo &&
	test_commit -C repo bar &&

	FOO=$(git -C repo rev-parse foo) &&
	promise_and_delete "$FOO" &&

	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "arbitrary string" &&
	GIT_TEST_COMMIT_GRAPH=0 git -C repo -c core.commitGraph=false rev-list --exclude-promisor-objects --objects bar >out &&
	grep $(git -C repo rev-parse bar) out &&
	! grep $FOO out
'

test_expect_success 'missing tree objects with --missing=allow-promisor and --exclude-promisor-objects' '
	rm -rf repo &&
	test_create_repo repo &&
	test_commit -C repo foo &&
	test_commit -C repo bar &&
	test_commit -C repo baz &&

	promise_and_delete $(git -C repo rev-parse bar^{tree}) &&
	promise_and_delete $(git -C repo rev-parse foo^{tree}) &&

	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "arbitrary string" &&

	git -C repo rev-list --missing=allow-promisor --objects HEAD >objs 2>rev_list_err &&
	test_must_be_empty rev_list_err &&
	# 3 commits, 3 blobs, and 1 tree
	test_line_count = 7 objs &&

	# Do the same for --exclude-promisor-objects, but with all trees gone.
	promise_and_delete $(git -C repo rev-parse baz^{tree}) &&
	git -C repo rev-list --exclude-promisor-objects --objects HEAD >objs 2>rev_list_err &&
	test_must_be_empty rev_list_err &&
	# 3 commits, no blobs or trees
	test_line_count = 3 objs
'

test_expect_success 'missing non-root tree object and rev-list' '
	rm -rf repo &&
	test_create_repo repo &&
	mkdir repo/dir &&
	echo foo >repo/dir/foo &&
	git -C repo add dir/foo &&
	git -C repo commit -m "commit dir/foo" &&

	promise_and_delete $(git -C repo rev-parse HEAD:dir) &&

	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "arbitrary string" &&

	git -C repo rev-list --missing=allow-any --objects HEAD >objs 2>rev_list_err &&
	test_must_be_empty rev_list_err &&
	# 1 commit and 1 tree
	test_line_count = 2 objs
'

test_expect_success 'rev-list stops traversal at missing and promised tree' '
	rm -rf repo &&
	test_create_repo repo &&
	test_commit -C repo foo &&
	mkdir repo/a_dir &&
	echo something >repo/a_dir/something &&
	git -C repo add a_dir/something &&
	git -C repo commit -m bar &&

	# foo^{tree} (tree referenced from commit)
	TREE=$(git -C repo rev-parse foo^{tree}) &&

	# a tree referenced by HEAD^{tree} (tree referenced from tree)
	TREE2=$(git -C repo ls-tree HEAD^{tree} | grep " tree " | head -1 | cut -b13-52) &&

	promise_and_delete "$TREE" &&
	promise_and_delete "$TREE2" &&

	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "arbitrary string" &&
	git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
	grep $(git -C repo rev-parse foo) out &&
	! grep $TREE out &&
	grep $(git -C repo rev-parse HEAD) out &&
	! grep $TREE2 out
'

test_expect_success 'rev-list stops traversal at missing and promised blob' '
	rm -rf repo &&
	test_create_repo repo &&
	echo something >repo/something &&
	git -C repo add something &&
	git -C repo commit -m foo &&

	BLOB=$(git -C repo hash-object -w something) &&
	promise_and_delete "$BLOB" &&

	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "arbitrary string" &&
	git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
	grep $(git -C repo rev-parse HEAD) out &&
	! grep $BLOB out
'

test_expect_success 'rev-list stops traversal at promisor commit, tree, and blob' '
	rm -rf repo &&
	test_create_repo repo &&
	test_commit -C repo foo &&
	test_commit -C repo bar &&
	test_commit -C repo baz &&

	COMMIT=$(git -C repo rev-parse foo) &&
	TREE=$(git -C repo rev-parse bar^{tree}) &&
	BLOB=$(git hash-object repo/baz.t) &&
	printf "%s\n%s\n%s\n" $COMMIT $TREE $BLOB | pack_as_from_promisor &&

	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "arbitrary string" &&
	git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
	! grep $COMMIT out &&
	! grep $TREE out &&
	! grep $BLOB out &&
	grep $(git -C repo rev-parse bar) out  # sanity check that some walking was done
'

test_expect_success 'rev-list dies for missing objects on cmd line' '
	rm -rf repo &&
	test_create_repo repo &&
	test_commit -C repo foo &&
	test_commit -C repo bar &&
	test_commit -C repo baz &&

	COMMIT=$(git -C repo rev-parse foo) &&
	TREE=$(git -C repo rev-parse bar^{tree}) &&
	BLOB=$(git hash-object repo/baz.t) &&

	promise_and_delete $COMMIT &&
	promise_and_delete $TREE &&
	promise_and_delete $BLOB &&

	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "arbitrary string" &&

	for OBJ in "$COMMIT" "$TREE" "$BLOB"; do
		test_must_fail git -C repo rev-list --objects \
			--exclude-promisor-objects "$OBJ" &&
		test_must_fail git -C repo rev-list --objects-edge-aggressive \
			--exclude-promisor-objects "$OBJ" &&

		# Do not die or crash when --ignore-missing is passed.
		git -C repo rev-list --ignore-missing --objects \
			--exclude-promisor-objects "$OBJ" &&
		git -C repo rev-list --ignore-missing --objects-edge-aggressive \
			--exclude-promisor-objects "$OBJ"
	done
'

test_expect_success 'single promisor remote can be re-initialized gracefully' '
	# ensure one promisor is in the promisors list
	rm -rf repo &&
	test_create_repo repo &&
	test_create_repo other &&
	git -C repo remote add foo "file://$(pwd)/other" &&
	git -C repo config remote.foo.promisor true &&
	git -C repo config extensions.partialclone foo &&

	# reinitialize the promisors list
	git -C repo fetch --filter=blob:none foo
'

test_expect_success 'gc repacks promisor objects separately from non-promisor objects' '
	rm -rf repo &&
	test_create_repo repo &&
	test_commit -C repo one &&
	test_commit -C repo two &&

	TREE_ONE=$(git -C repo rev-parse one^{tree}) &&
	printf "$TREE_ONE\n" | pack_as_from_promisor &&
	TREE_TWO=$(git -C repo rev-parse two^{tree}) &&
	printf "$TREE_TWO\n" | pack_as_from_promisor &&

	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "arbitrary string" &&
	git -C repo gc &&

	# Ensure that exactly one promisor packfile exists, and that it
	# contains the trees but not the commits
	ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
	test_line_count = 1 promisorlist &&
	PROMISOR_PACKFILE=$(sed "s/.promisor/.pack/" <promisorlist) &&
	git verify-pack $PROMISOR_PACKFILE -v >out &&
	grep "$TREE_ONE" out &&
	grep "$TREE_TWO" out &&
	! grep "$(git -C repo rev-parse one)" out &&
	! grep "$(git -C repo rev-parse two)" out &&

	# Remove the promisor packfile and associated files
	rm $(sed "s/.promisor//" <promisorlist).* &&

	# Ensure that the single other pack contains the commits, but not the
	# trees
	ls repo/.git/objects/pack/pack-*.pack >packlist &&
	test_line_count = 1 packlist &&
	git verify-pack repo/.git/objects/pack/pack-*.pack -v >out &&
	grep "$(git -C repo rev-parse one)" out &&
	grep "$(git -C repo rev-parse two)" out &&
	! grep "$TREE_ONE" out &&
	! grep "$TREE_TWO" out
'

test_expect_success 'gc does not repack promisor objects if there are none' '
	rm -rf repo &&
	test_create_repo repo &&
	test_commit -C repo one &&

	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "arbitrary string" &&
	git -C repo gc &&

	# Ensure that only one pack exists
	ls repo/.git/objects/pack/pack-*.pack >packlist &&
	test_line_count = 1 packlist
'

repack_and_check () {
	rm -rf repo2 &&
	cp -r repo repo2 &&
	git -C repo2 repack $1 -d &&
	git -C repo2 fsck &&

	git -C repo2 cat-file -e $2 &&
	git -C repo2 cat-file -e $3
}

test_expect_success 'repack -d does not irreversibly delete promisor objects' '
	rm -rf repo &&
	test_create_repo repo &&
	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "arbitrary string" &&

	git -C repo commit --allow-empty -m one &&
	git -C repo commit --allow-empty -m two &&
	git -C repo commit --allow-empty -m three &&
	git -C repo commit --allow-empty -m four &&
	ONE=$(git -C repo rev-parse HEAD^^^) &&
	TWO=$(git -C repo rev-parse HEAD^^) &&
	THREE=$(git -C repo rev-parse HEAD^) &&

	printf "$TWO\n" | pack_as_from_promisor &&
	printf "$THREE\n" | pack_as_from_promisor &&
	delete_object repo "$ONE" &&

	repack_and_check -a "$TWO" "$THREE" &&
	repack_and_check -A "$TWO" "$THREE" &&
	repack_and_check -l "$TWO" "$THREE"
'

test_expect_success 'gc stops traversal when a missing but promised object is reached' '
	rm -rf repo &&
	test_create_repo repo &&
	test_commit -C repo my_commit &&

	TREE_HASH=$(git -C repo rev-parse HEAD^{tree}) &&
	HASH=$(promise_and_delete $TREE_HASH) &&

	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "arbitrary string" &&
	git -C repo gc &&

	# Ensure that the promisor packfile still exists, and remove it
	test -e repo/.git/objects/pack/pack-$HASH.pack &&
	rm repo/.git/objects/pack/pack-$HASH.* &&

	# Ensure that the single other pack contains the commit, but not the tree
	ls repo/.git/objects/pack/pack-*.pack >packlist &&
	test_line_count = 1 packlist &&
	git verify-pack repo/.git/objects/pack/pack-*.pack -v >out &&
	grep "$(git -C repo rev-parse HEAD)" out &&
	! grep "$TREE_HASH" out
'

test_expect_success 'do not fetch when checking existence of tree we construct ourselves' '
	rm -rf repo &&
	test_create_repo repo &&
	test_commit -C repo base &&
	test_commit -C repo side1 &&
	git -C repo checkout base &&
	test_commit -C repo side2 &&

	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "arbitrary string" &&

	git -C repo cherry-pick side1
'

. "$TEST_DIRECTORY"/lib-httpd.sh
start_httpd

test_expect_success 'fetching of missing objects from an HTTP server' '
	rm -rf repo &&
	SERVER="$HTTPD_DOCUMENT_ROOT_PATH/server" &&
	test_create_repo "$SERVER" &&
	test_commit -C "$SERVER" foo &&
	git -C "$SERVER" repack -a -d --write-bitmap-index &&

	git clone $HTTPD_URL/smart/server repo &&
	HASH=$(git -C repo rev-parse foo) &&
	rm -rf repo/.git/objects/* &&

	git -C repo config core.repositoryformatversion 1 &&
	git -C repo config extensions.partialclone "origin" &&
	git -C repo cat-file -p "$HASH" &&

	# Ensure that the .promisor file is written, and check that its
	# associated packfile contains the object
	ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
	test_line_count = 1 promisorlist &&
	IDX=$(sed "s/promisor$/idx/" promisorlist) &&
	git verify-pack --verbose "$IDX" >out &&
	grep "$HASH" out
'

# DO NOT add non-httpd-specific tests here, because the last part of this
# test script is only executed when httpd is available and enabled.

test_done