summaryrefslogtreecommitdiff
path: root/t/t1700-split-index.sh
blob: 39133bcbc85239183c3d73596f76f0486aeefcfe (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
#!/bin/sh

test_description='split index mode tests'

. ./test-lib.sh

# We need total control of index splitting here
sane_unset GIT_TEST_SPLIT_INDEX
sane_unset GIT_FSMONITOR_TEST

test_expect_success 'enable split index' '
	git config splitIndex.maxPercentChange 100 &&
	git update-index --split-index &&
	test-tool dump-split-index .git/index >actual &&
	indexversion=$(test-tool index-version <.git/index) &&
	if test "$indexversion" = "4"
	then
		own=432ef4b63f32193984f339431fd50ca796493569
		base=508851a7f0dfa8691e9f69c7f055865389012491
	else
		own=8299b0bcd1ac364e5f1d7768efb62fa2da79a339
		base=39d890139ee5356c7ef572216cebcd27aa41f9df
	fi &&
	cat >expect <<-EOF &&
	own $own
	base $base
	replacements:
	deletions:
	EOF
	test_cmp expect actual
'

test_expect_success 'add one file' '
	: >one &&
	git update-index --add one &&
	git ls-files --stage >ls-files.actual &&
	cat >ls-files.expect <<-EOF &&
	100644 $EMPTY_BLOB 0	one
	EOF
	test_cmp ls-files.expect ls-files.actual &&

	test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
	cat >expect <<-EOF &&
	base $base
	100644 $EMPTY_BLOB 0	one
	replacements:
	deletions:
	EOF
	test_cmp expect actual
'

test_expect_success 'disable split index' '
	git update-index --no-split-index &&
	git ls-files --stage >ls-files.actual &&
	cat >ls-files.expect <<-EOF &&
	100644 $EMPTY_BLOB 0	one
	EOF
	test_cmp ls-files.expect ls-files.actual &&

	BASE=$(test-tool dump-split-index .git/index | grep "^own" | sed "s/own/base/") &&
	test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
	cat >expect <<-EOF &&
	not a split index
	EOF
	test_cmp expect actual
'

test_expect_success 'enable split index again, "one" now belongs to base index"' '
	git update-index --split-index &&
	git ls-files --stage >ls-files.actual &&
	cat >ls-files.expect <<-EOF &&
	100644 $EMPTY_BLOB 0	one
	EOF
	test_cmp ls-files.expect ls-files.actual &&

	test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
	cat >expect <<-EOF &&
	$BASE
	replacements:
	deletions:
	EOF
	test_cmp expect actual
'

test_expect_success 'modify original file, base index untouched' '
	echo modified >one &&
	git update-index one &&
	git ls-files --stage >ls-files.actual &&
	cat >ls-files.expect <<-EOF &&
	100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0	one
	EOF
	test_cmp ls-files.expect ls-files.actual &&

	test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
	q_to_tab >expect <<-EOF &&
	$BASE
	100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
	replacements: 0
	deletions:
	EOF
	test_cmp expect actual
'

test_expect_success 'add another file, which stays index' '
	: >two &&
	git update-index --add two &&
	git ls-files --stage >ls-files.actual &&
	cat >ls-files.expect <<-EOF &&
	100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0	one
	100644 $EMPTY_BLOB 0	two
	EOF
	test_cmp ls-files.expect ls-files.actual &&

	test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
	q_to_tab >expect <<-EOF &&
	$BASE
	100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
	100644 $EMPTY_BLOB 0	two
	replacements: 0
	deletions:
	EOF
	test_cmp expect actual
'

test_expect_success 'remove file not in base index' '
	git update-index --force-remove two &&
	git ls-files --stage >ls-files.actual &&
	cat >ls-files.expect <<-EOF &&
	100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0	one
	EOF
	test_cmp ls-files.expect ls-files.actual &&

	test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
	q_to_tab >expect <<-EOF &&
	$BASE
	100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
	replacements: 0
	deletions:
	EOF
	test_cmp expect actual
'

test_expect_success 'remove file in base index' '
	git update-index --force-remove one &&
	git ls-files --stage >ls-files.actual &&
	cat >ls-files.expect <<-EOF &&
	EOF
	test_cmp ls-files.expect ls-files.actual &&

	test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
	cat >expect <<-EOF &&
	$BASE
	replacements:
	deletions: 0
	EOF
	test_cmp expect actual
'

test_expect_success 'add original file back' '
	: >one &&
	git update-index --add one &&
	git ls-files --stage >ls-files.actual &&
	cat >ls-files.expect <<-EOF &&
	100644 $EMPTY_BLOB 0	one
	EOF
	test_cmp ls-files.expect ls-files.actual &&

	test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
	cat >expect <<-EOF &&
	$BASE
	100644 $EMPTY_BLOB 0	one
	replacements:
	deletions: 0
	EOF
	test_cmp expect actual
'

test_expect_success 'add new file' '
	: >two &&
	git update-index --add two &&
	git ls-files --stage >actual &&
	cat >expect <<-EOF &&
	100644 $EMPTY_BLOB 0	one
	100644 $EMPTY_BLOB 0	two
	EOF
	test_cmp expect actual
'

test_expect_success 'unify index, two files remain' '
	git update-index --no-split-index &&
	git ls-files --stage >ls-files.actual &&
	cat >ls-files.expect <<-EOF &&
	100644 $EMPTY_BLOB 0	one
	100644 $EMPTY_BLOB 0	two
	EOF
	test_cmp ls-files.expect ls-files.actual &&

	test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
	cat >expect <<-EOF &&
	not a split index
	EOF
	test_cmp expect actual
'

test_expect_success 'rev-parse --shared-index-path' '
	test_create_repo split-index &&
	(
		cd split-index &&
		git update-index --split-index &&
		echo .git/sharedindex* >expect &&
		git rev-parse --shared-index-path >actual &&
		test_cmp expect actual &&
		mkdir subdirectory &&
		cd subdirectory &&
		echo ../.git/sharedindex* >expect &&
		git rev-parse --shared-index-path >actual &&
		test_cmp expect actual
	)
'

test_expect_success 'set core.splitIndex config variable to true' '
	git config core.splitIndex true &&
	: >three &&
	git update-index --add three &&
	git ls-files --stage >ls-files.actual &&
	cat >ls-files.expect <<-EOF &&
	100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0	one
	100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0	three
	100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0	two
	EOF
	test_cmp ls-files.expect ls-files.actual &&
	BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
	test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
	cat >expect <<-EOF &&
	$BASE
	replacements:
	deletions:
	EOF
	test_cmp expect actual
'

test_expect_success 'set core.splitIndex config variable to false' '
	git config core.splitIndex false &&
	git update-index --force-remove three &&
	git ls-files --stage >ls-files.actual &&
	cat >ls-files.expect <<-EOF &&
	100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0	one
	100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0	two
	EOF
	test_cmp ls-files.expect ls-files.actual &&
	test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
	cat >expect <<-EOF &&
	not a split index
	EOF
	test_cmp expect actual
'

test_expect_success 'set core.splitIndex config variable to true' '
	git config core.splitIndex true &&
	: >three &&
	git update-index --add three &&
	BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
	test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
	cat >expect <<-EOF &&
	$BASE
	replacements:
	deletions:
	EOF
	test_cmp expect actual &&
	: >four &&
	git update-index --add four &&
	test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
	cat >expect <<-EOF &&
	$BASE
	100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0	four
	replacements:
	deletions:
	EOF
	test_cmp expect actual
'

test_expect_success 'check behavior with splitIndex.maxPercentChange unset' '
	git config --unset splitIndex.maxPercentChange &&
	: >five &&
	git update-index --add five &&
	BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
	test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
	cat >expect <<-EOF &&
	$BASE
	replacements:
	deletions:
	EOF
	test_cmp expect actual &&
	: >six &&
	git update-index --add six &&
	test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
	cat >expect <<-EOF &&
	$BASE
	100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0	six
	replacements:
	deletions:
	EOF
	test_cmp expect actual
'

test_expect_success 'check splitIndex.maxPercentChange set to 0' '
	git config splitIndex.maxPercentChange 0 &&
	: >seven &&
	git update-index --add seven &&
	BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
	test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
	cat >expect <<-EOF &&
	$BASE
	replacements:
	deletions:
	EOF
	test_cmp expect actual &&
	: >eight &&
	git update-index --add eight &&
	BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
	test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
	cat >expect <<-EOF &&
	$BASE
	replacements:
	deletions:
	EOF
	test_cmp expect actual
'

test_expect_success 'shared index files expire after 2 weeks by default' '
	: >ten &&
	git update-index --add ten &&
	test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
	just_under_2_weeks_ago=$((5-14*86400)) &&
	test-tool chmtime =$just_under_2_weeks_ago .git/sharedindex.* &&
	: >eleven &&
	git update-index --add eleven &&
	test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
	just_over_2_weeks_ago=$((-1-14*86400)) &&
	test-tool chmtime =$just_over_2_weeks_ago .git/sharedindex.* &&
	: >twelve &&
	git update-index --add twelve &&
	test $(ls .git/sharedindex.* | wc -l) -le 2
'

test_expect_success 'check splitIndex.sharedIndexExpire set to 16 days' '
	git config splitIndex.sharedIndexExpire "16.days.ago" &&
	test-tool chmtime =$just_over_2_weeks_ago .git/sharedindex.* &&
	: >thirteen &&
	git update-index --add thirteen &&
	test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
	just_over_16_days_ago=$((-1-16*86400)) &&
	test-tool chmtime =$just_over_16_days_ago .git/sharedindex.* &&
	: >fourteen &&
	git update-index --add fourteen &&
	test $(ls .git/sharedindex.* | wc -l) -le 2
'

test_expect_success 'check splitIndex.sharedIndexExpire set to "never" and "now"' '
	git config splitIndex.sharedIndexExpire never &&
	just_10_years_ago=$((-365*10*86400)) &&
	test-tool chmtime =$just_10_years_ago .git/sharedindex.* &&
	: >fifteen &&
	git update-index --add fifteen &&
	test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
	git config splitIndex.sharedIndexExpire now &&
	just_1_second_ago=-1 &&
	test-tool chmtime =$just_1_second_ago .git/sharedindex.* &&
	: >sixteen &&
	git update-index --add sixteen &&
	test $(ls .git/sharedindex.* | wc -l) -le 2
'

while read -r mode modebits
do
	test_expect_success POSIXPERM "split index respects core.sharedrepository $mode" '
		# Remove existing shared index files
		git config core.splitIndex false &&
		git update-index --force-remove one &&
		rm -f .git/sharedindex.* &&
		# Create one new shared index file
		git config core.sharedrepository "$mode" &&
		git config core.splitIndex true &&
		: >one &&
		git update-index --add one &&
		echo "$modebits" >expect &&
		test_modebits .git/index >actual &&
		test_cmp expect actual &&
		shared=$(ls .git/sharedindex.*) &&
		case "$shared" in
		*" "*)
			# we have more than one???
			false ;;
		*)
			test_modebits "$shared" >actual &&
			test_cmp expect actual ;;
		esac
	'
done <<\EOF
0666 -rw-rw-rw-
0642 -rw-r---w-
EOF

test_expect_success POSIXPERM,SANITY 'graceful handling when splitting index is not allowed' '
	test_create_repo ro &&
	(
		cd ro &&
		test_commit initial &&
		git update-index --split-index &&
		test -f .git/sharedindex.*
	) &&
	cp ro/.git/index new-index &&
	test_when_finished "chmod u+w ro/.git" &&
	chmod u-w ro/.git &&
	GIT_INDEX_FILE="$(pwd)/new-index" git -C ro update-index --split-index &&
	chmod u+w ro/.git &&
	rm ro/.git/sharedindex.* &&
	GIT_INDEX_FILE=new-index git ls-files >actual &&
	echo initial.t >expected &&
	test_cmp expected actual
'

test_expect_success 'writing split index with null sha1 does not write cache tree' '
	git config core.splitIndex true &&
	git config splitIndex.maxPercentChange 0 &&
	git commit -m "commit" &&
	{
		git ls-tree HEAD &&
		printf "160000 commit $ZERO_OID\\tbroken\\n"
	} >broken-tree &&
	echo "add broken entry" >msg &&

	tree=$(git mktree <broken-tree) &&
	test_tick &&
	commit=$(git commit-tree $tree -p HEAD <msg) &&
	git update-ref HEAD "$commit" &&
	GIT_ALLOW_NULL_SHA1=1 git reset --hard &&
	test_might_fail test-tool dump-cache-tree >cache-tree.out &&
	test_line_count = 0 cache-tree.out
'

test_done