summaryrefslogtreecommitdiff
path: root/t/t1404-update-ref-errors.sh
blob: c34ece48f5ad77a6d53b5f0a1dcf7d53d7413837 (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
#!/bin/sh

test_description='Test git update-ref error handling'
. ./test-lib.sh

# Create some references, perhaps run pack-refs --all, then try to
# create some more references. Ensure that the second creation fails
# with the correct error message.
# Usage: test_update_rejected <before> <pack> <create> <error>
#   <before> is a ws-separated list of refs to create before the test
#   <pack> (true or false) tells whether to pack the refs before the test
#   <create> is a list of variables to attempt creating
#   <error> is a string to look for in the stderr of update-ref.
# All references are created in the namespace specified by the current
# value of $prefix.
test_update_rejected () {
	before="$1" &&
	pack="$2" &&
	create="$3" &&
	error="$4" &&
	printf "create $prefix/%s $C\n" $before |
	git update-ref --stdin &&
	git for-each-ref $prefix >unchanged &&
	if $pack
	then
		git pack-refs --all
	fi &&
	printf "create $prefix/%s $C\n" $create >input &&
	test_must_fail git update-ref --stdin <input 2>output.err &&
	grep -F "$error" output.err &&
	git for-each-ref $prefix >actual &&
	test_cmp unchanged actual
}

Q="'"

test_expect_success 'setup' '

	git commit --allow-empty -m Initial &&
	C=$(git rev-parse HEAD) &&
	git commit --allow-empty -m Second &&
	D=$(git rev-parse HEAD) &&
	git commit --allow-empty -m Third &&
	E=$(git rev-parse HEAD)
'

test_expect_success 'existing loose ref is a simple prefix of new' '

	prefix=refs/1l &&
	test_update_rejected "a c e" false "b c/x d" \
		"$Q$prefix/c$Q exists; cannot create $Q$prefix/c/x$Q"

'

test_expect_success 'existing packed ref is a simple prefix of new' '

	prefix=refs/1p &&
	test_update_rejected "a c e" true "b c/x d" \
		"$Q$prefix/c$Q exists; cannot create $Q$prefix/c/x$Q"

'

test_expect_success 'existing loose ref is a deeper prefix of new' '

	prefix=refs/2l &&
	test_update_rejected "a c e" false "b c/x/y d" \
		"$Q$prefix/c$Q exists; cannot create $Q$prefix/c/x/y$Q"

'

test_expect_success 'existing packed ref is a deeper prefix of new' '

	prefix=refs/2p &&
	test_update_rejected "a c e" true "b c/x/y d" \
		"$Q$prefix/c$Q exists; cannot create $Q$prefix/c/x/y$Q"

'

test_expect_success 'new ref is a simple prefix of existing loose' '

	prefix=refs/3l &&
	test_update_rejected "a c/x e" false "b c d" \
		"$Q$prefix/c/x$Q exists; cannot create $Q$prefix/c$Q"

'

test_expect_success 'new ref is a simple prefix of existing packed' '

	prefix=refs/3p &&
	test_update_rejected "a c/x e" true "b c d" \
		"$Q$prefix/c/x$Q exists; cannot create $Q$prefix/c$Q"

'

test_expect_success 'new ref is a deeper prefix of existing loose' '

	prefix=refs/4l &&
	test_update_rejected "a c/x/y e" false "b c d" \
		"$Q$prefix/c/x/y$Q exists; cannot create $Q$prefix/c$Q"

'

test_expect_success 'new ref is a deeper prefix of existing packed' '

	prefix=refs/4p &&
	test_update_rejected "a c/x/y e" true "b c d" \
		"$Q$prefix/c/x/y$Q exists; cannot create $Q$prefix/c$Q"

'

test_expect_success 'one new ref is a simple prefix of another' '

	prefix=refs/5 &&
	test_update_rejected "a e" false "b c c/x d" \
		"cannot process $Q$prefix/c$Q and $Q$prefix/c/x$Q at the same time"

'

test_expect_success 'empty directory should not fool rev-parse' '
	prefix=refs/e-rev-parse &&
	git update-ref $prefix/foo $C &&
	git pack-refs --all &&
	mkdir -p .git/$prefix/foo/bar/baz &&
	echo "$C" >expected &&
	git rev-parse $prefix/foo >actual &&
	test_cmp expected actual
'

test_expect_success 'empty directory should not fool for-each-ref' '
	prefix=refs/e-for-each-ref &&
	git update-ref $prefix/foo $C &&
	git for-each-ref $prefix >expected &&
	git pack-refs --all &&
	mkdir -p .git/$prefix/foo/bar/baz &&
	git for-each-ref $prefix >actual &&
	test_cmp expected actual
'

test_expect_success 'empty directory should not fool create' '
	prefix=refs/e-create &&
	mkdir -p .git/$prefix/foo/bar/baz &&
	printf "create %s $C\n" $prefix/foo |
	git update-ref --stdin
'

test_expect_success 'empty directory should not fool verify' '
	prefix=refs/e-verify &&
	git update-ref $prefix/foo $C &&
	git pack-refs --all &&
	mkdir -p .git/$prefix/foo/bar/baz &&
	printf "verify %s $C\n" $prefix/foo |
	git update-ref --stdin
'

test_expect_success 'empty directory should not fool 1-arg update' '
	prefix=refs/e-update-1 &&
	git update-ref $prefix/foo $C &&
	git pack-refs --all &&
	mkdir -p .git/$prefix/foo/bar/baz &&
	printf "update %s $D\n" $prefix/foo |
	git update-ref --stdin
'

test_expect_success 'empty directory should not fool 2-arg update' '
	prefix=refs/e-update-2 &&
	git update-ref $prefix/foo $C &&
	git pack-refs --all &&
	mkdir -p .git/$prefix/foo/bar/baz &&
	printf "update %s $D $C\n" $prefix/foo |
	git update-ref --stdin
'

test_expect_success 'empty directory should not fool 0-arg delete' '
	prefix=refs/e-delete-0 &&
	git update-ref $prefix/foo $C &&
	git pack-refs --all &&
	mkdir -p .git/$prefix/foo/bar/baz &&
	printf "delete %s\n" $prefix/foo |
	git update-ref --stdin
'

test_expect_success 'empty directory should not fool 1-arg delete' '
	prefix=refs/e-delete-1 &&
	git update-ref $prefix/foo $C &&
	git pack-refs --all &&
	mkdir -p .git/$prefix/foo/bar/baz &&
	printf "delete %s $C\n" $prefix/foo |
	git update-ref --stdin
'

# Test various errors when reading the old values of references...

test_expect_success 'missing old value blocks update' '
	prefix=refs/missing-update &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $Q$prefix/foo$Q: unable to resolve reference $Q$prefix/foo$Q
	EOF
	printf "%s\n" "update $prefix/foo $E $D" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'incorrect old value blocks update' '
	prefix=refs/incorrect-update &&
	git update-ref $prefix/foo $C &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $Q$prefix/foo$Q: is at $C but expected $D
	EOF
	printf "%s\n" "update $prefix/foo $E $D" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'existing old value blocks create' '
	prefix=refs/existing-create &&
	git update-ref $prefix/foo $C &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $Q$prefix/foo$Q: reference already exists
	EOF
	printf "%s\n" "create $prefix/foo $E" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'incorrect old value blocks delete' '
	prefix=refs/incorrect-delete &&
	git update-ref $prefix/foo $C &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $Q$prefix/foo$Q: is at $C but expected $D
	EOF
	printf "%s\n" "delete $prefix/foo $D" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'missing old value blocks indirect update' '
	prefix=refs/missing-indirect-update &&
	git symbolic-ref $prefix/symref $prefix/foo &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $Q$prefix/symref$Q: unable to resolve reference $Q$prefix/foo$Q
	EOF
	printf "%s\n" "update $prefix/symref $E $D" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'incorrect old value blocks indirect update' '
	prefix=refs/incorrect-indirect-update &&
	git symbolic-ref $prefix/symref $prefix/foo &&
	git update-ref $prefix/foo $C &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $Q$prefix/symref$Q: is at $C but expected $D
	EOF
	printf "%s\n" "update $prefix/symref $E $D" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'existing old value blocks indirect create' '
	prefix=refs/existing-indirect-create &&
	git symbolic-ref $prefix/symref $prefix/foo &&
	git update-ref $prefix/foo $C &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $Q$prefix/symref$Q: reference already exists
	EOF
	printf "%s\n" "create $prefix/symref $E" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'incorrect old value blocks indirect delete' '
	prefix=refs/incorrect-indirect-delete &&
	git symbolic-ref $prefix/symref $prefix/foo &&
	git update-ref $prefix/foo $C &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $Q$prefix/symref$Q: is at $C but expected $D
	EOF
	printf "%s\n" "delete $prefix/symref $D" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'missing old value blocks indirect no-deref update' '
	prefix=refs/missing-noderef-update &&
	git symbolic-ref $prefix/symref $prefix/foo &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $Q$prefix/symref$Q: reference is missing but expected $D
	EOF
	printf "%s\n" "option no-deref" "update $prefix/symref $E $D" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'incorrect old value blocks indirect no-deref update' '
	prefix=refs/incorrect-noderef-update &&
	git symbolic-ref $prefix/symref $prefix/foo &&
	git update-ref $prefix/foo $C &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $Q$prefix/symref$Q: is at $C but expected $D
	EOF
	printf "%s\n" "option no-deref" "update $prefix/symref $E $D" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'existing old value blocks indirect no-deref create' '
	prefix=refs/existing-noderef-create &&
	git symbolic-ref $prefix/symref $prefix/foo &&
	git update-ref $prefix/foo $C &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $Q$prefix/symref$Q: reference already exists
	EOF
	printf "%s\n" "option no-deref" "create $prefix/symref $E" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'incorrect old value blocks indirect no-deref delete' '
	prefix=refs/incorrect-noderef-delete &&
	git symbolic-ref $prefix/symref $prefix/foo &&
	git update-ref $prefix/foo $C &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $Q$prefix/symref$Q: is at $C but expected $D
	EOF
	printf "%s\n" "option no-deref" "delete $prefix/symref $D" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'non-empty directory blocks create' '
	prefix=refs/ne-create &&
	mkdir -p .git/$prefix/foo/bar &&
	: >.git/$prefix/foo/bar/baz.lock &&
	test_when_finished "rm -f .git/$prefix/foo/bar/baz.lock" &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $Q$prefix/foo$Q: there is a non-empty directory $Q.git/$prefix/foo$Q blocking reference $Q$prefix/foo$Q
	EOF
	printf "%s\n" "update $prefix/foo $C" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $Q$prefix/foo$Q: unable to resolve reference $Q$prefix/foo$Q
	EOF
	printf "%s\n" "update $prefix/foo $D $C" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'broken reference blocks create' '
	prefix=refs/broken-create &&
	mkdir -p .git/$prefix &&
	echo "gobbledigook" >.git/$prefix/foo &&
	test_when_finished "rm -f .git/$prefix/foo" &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $Q$prefix/foo$Q: unable to resolve reference $Q$prefix/foo$Q: reference broken
	EOF
	printf "%s\n" "update $prefix/foo $C" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $Q$prefix/foo$Q: unable to resolve reference $Q$prefix/foo$Q: reference broken
	EOF
	printf "%s\n" "update $prefix/foo $D $C" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'non-empty directory blocks indirect create' '
	prefix=refs/ne-indirect-create &&
	git symbolic-ref $prefix/symref $prefix/foo &&
	mkdir -p .git/$prefix/foo/bar &&
	: >.git/$prefix/foo/bar/baz.lock &&
	test_when_finished "rm -f .git/$prefix/foo/bar/baz.lock" &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $Q$prefix/symref$Q: there is a non-empty directory $Q.git/$prefix/foo$Q blocking reference $Q$prefix/foo$Q
	EOF
	printf "%s\n" "update $prefix/symref $C" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $Q$prefix/symref$Q: unable to resolve reference $Q$prefix/foo$Q
	EOF
	printf "%s\n" "update $prefix/symref $D $C" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_expect_success 'broken reference blocks indirect create' '
	prefix=refs/broken-indirect-create &&
	git symbolic-ref $prefix/symref $prefix/foo &&
	echo "gobbledigook" >.git/$prefix/foo &&
	test_when_finished "rm -f .git/$prefix/foo" &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $Q$prefix/symref$Q: unable to resolve reference $Q$prefix/foo$Q: reference broken
	EOF
	printf "%s\n" "update $prefix/symref $C" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err &&
	cat >expected <<-EOF &&
	fatal: cannot lock ref $Q$prefix/symref$Q: unable to resolve reference $Q$prefix/foo$Q: reference broken
	EOF
	printf "%s\n" "update $prefix/symref $D $C" |
	test_must_fail git update-ref --stdin 2>output.err &&
	test_cmp expected output.err
'

test_done