summaryrefslogtreecommitdiffstats
path: root/t/t2024-checkout-dwim.sh
blob: a4f8d3a67e8a4a36d6bccdda6a83da15c53ee5f3 (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
#!/bin/sh

test_description='checkout <branch>

Ensures that checkout on an unborn branch does what the user expects'

. ./test-lib.sh

# Is the current branch "refs/heads/$1"?
test_branch () {
	printf "%s\n" "refs/heads/$1" >expect.HEAD &&
	git symbolic-ref HEAD >actual.HEAD &&
	test_cmp expect.HEAD actual.HEAD
}

# Is branch "refs/heads/$1" set to pull from "$2/$3"?
test_branch_upstream () {
	printf "%s\n" "$2" "refs/heads/$3" >expect.upstream &&
	{
		git config "branch.$1.remote" &&
		git config "branch.$1.merge"
	} >actual.upstream &&
	test_cmp expect.upstream actual.upstream
}

status_uno_is_clean () {
	git status -uno --porcelain >status.actual &&
	test_must_be_empty status.actual
}

test_expect_success 'setup' '
	test_commit my_master &&
	git init repo_a &&
	(
		cd repo_a &&
		test_commit a_master &&
		git checkout -b foo &&
		test_commit a_foo &&
		git checkout -b bar &&
		test_commit a_bar &&
		git checkout -b ambiguous_branch_and_file &&
		test_commit a_ambiguous_branch_and_file
	) &&
	git init repo_b &&
	(
		cd repo_b &&
		test_commit b_master &&
		git checkout -b foo &&
		test_commit b_foo &&
		git checkout -b baz &&
		test_commit b_baz &&
		git checkout -b ambiguous_branch_and_file &&
		test_commit b_ambiguous_branch_and_file
	) &&
	git remote add repo_a repo_a &&
	git remote add repo_b repo_b &&
	git config remote.repo_b.fetch \
		"+refs/heads/*:refs/remotes/other_b/*" &&
	git fetch --all
'

test_expect_success 'checkout of non-existing branch fails' '
	git checkout -B master &&
	test_might_fail git branch -D xyzzy &&

	test_must_fail git checkout xyzzy &&
	status_uno_is_clean &&
	test_must_fail git rev-parse --verify refs/heads/xyzzy &&
	test_branch master
'

test_expect_success 'checkout of branch from multiple remotes fails #1' '
	git checkout -B master &&
	test_might_fail git branch -D foo &&

	test_must_fail git checkout foo &&
	status_uno_is_clean &&
	test_must_fail git rev-parse --verify refs/heads/foo &&
	test_branch master
'

test_expect_success 'when arg matches multiple remotes, do not fallback to interpreting as pathspec' '
	# create a file with name matching remote branch name
	git checkout -b t_ambiguous_branch_and_file &&
	>ambiguous_branch_and_file &&
	git add ambiguous_branch_and_file &&
	git commit -m "ambiguous_branch_and_file" &&

	# modify file to verify that it will not be touched by checkout
	test_when_finished "git checkout -- ambiguous_branch_and_file" &&
	echo "file contents" >ambiguous_branch_and_file &&
	cp ambiguous_branch_and_file expect &&

	test_must_fail git checkout ambiguous_branch_and_file 2>err &&

	test_i18ngrep "matched multiple (2) remote tracking branches" err &&

	# file must not be altered
	test_cmp expect ambiguous_branch_and_file
'

test_expect_success 'checkout of branch from multiple remotes fails with advice' '
	git checkout -B master &&
	test_might_fail git branch -D foo &&
	test_must_fail git checkout foo 2>stderr &&
	test_branch master &&
	status_uno_is_clean &&
	test_i18ngrep "^hint: " stderr &&
	test_must_fail git -c advice.checkoutAmbiguousRemoteBranchName=false \
		checkout foo 2>stderr &&
	test_branch master &&
	status_uno_is_clean &&
	test_i18ngrep ! "^hint: " stderr
'

test_expect_success PERL 'checkout -p with multiple remotes does not print advice' '
	git checkout -B master &&
	test_might_fail git branch -D foo &&

	git checkout -p foo 2>stderr &&
	test_i18ngrep ! "^hint: " stderr &&
	status_uno_is_clean
'

test_expect_success 'checkout of branch from multiple remotes succeeds with checkout.defaultRemote #1' '
	git checkout -B master &&
	status_uno_is_clean &&
	test_might_fail git branch -D foo &&

	git -c checkout.defaultRemote=repo_a checkout foo &&
	status_uno_is_clean &&
	test_branch foo &&
	test_cmp_rev remotes/repo_a/foo HEAD &&
	test_branch_upstream foo repo_a foo
'

test_expect_success 'checkout of branch from a single remote succeeds #1' '
	git checkout -B master &&
	test_might_fail git branch -D bar &&

	git checkout bar &&
	status_uno_is_clean &&
	test_branch bar &&
	test_cmp_rev remotes/repo_a/bar HEAD &&
	test_branch_upstream bar repo_a bar
'

test_expect_success 'checkout of branch from a single remote succeeds #2' '
	git checkout -B master &&
	test_might_fail git branch -D baz &&

	git checkout baz &&
	status_uno_is_clean &&
	test_branch baz &&
	test_cmp_rev remotes/other_b/baz HEAD &&
	test_branch_upstream baz repo_b baz
'

test_expect_success '--no-guess suppresses branch auto-vivification' '
	git checkout -B master &&
	status_uno_is_clean &&
	test_might_fail git branch -D bar &&

	test_must_fail git checkout --no-guess bar &&
	test_must_fail git rev-parse --verify refs/heads/bar &&
	test_branch master
'

test_expect_success 'checkout.guess = false suppresses branch auto-vivification' '
	git checkout -B master &&
	status_uno_is_clean &&
	test_might_fail git branch -D bar &&

	test_config checkout.guess false &&
	test_must_fail git checkout bar &&
	test_must_fail git rev-parse --verify refs/heads/bar &&
	test_branch master
'

test_expect_success 'setup more remotes with unconventional refspecs' '
	git checkout -B master &&
	status_uno_is_clean &&
	git init repo_c &&
	(
		cd repo_c &&
		test_commit c_master &&
		git checkout -b bar &&
		test_commit c_bar &&
		git checkout -b spam &&
		test_commit c_spam
	) &&
	git init repo_d &&
	(
		cd repo_d &&
		test_commit d_master &&
		git checkout -b baz &&
		test_commit d_baz &&
		git checkout -b eggs &&
		test_commit d_eggs
	) &&
	git remote add repo_c repo_c &&
	git config remote.repo_c.fetch \
		"+refs/heads/*:refs/remotes/extra_dir/repo_c/extra_dir/*" &&
	git remote add repo_d repo_d &&
	git config remote.repo_d.fetch \
		"+refs/heads/*:refs/repo_d/*" &&
	git fetch --all
'

test_expect_success 'checkout of branch from multiple remotes fails #2' '
	git checkout -B master &&
	status_uno_is_clean &&
	test_might_fail git branch -D bar &&

	test_must_fail git checkout bar &&
	status_uno_is_clean &&
	test_must_fail git rev-parse --verify refs/heads/bar &&
	test_branch master
'

test_expect_success 'checkout of branch from multiple remotes fails #3' '
	git checkout -B master &&
	status_uno_is_clean &&
	test_might_fail git branch -D baz &&

	test_must_fail git checkout baz &&
	status_uno_is_clean &&
	test_must_fail git rev-parse --verify refs/heads/baz &&
	test_branch master
'

test_expect_success 'checkout of branch from a single remote succeeds #3' '
	git checkout -B master &&
	status_uno_is_clean &&
	test_might_fail git branch -D spam &&

	git checkout spam &&
	status_uno_is_clean &&
	test_branch spam &&
	test_cmp_rev refs/remotes/extra_dir/repo_c/extra_dir/spam HEAD &&
	test_branch_upstream spam repo_c spam
'

test_expect_success 'checkout of branch from a single remote succeeds #4' '
	git checkout -B master &&
	status_uno_is_clean &&
	test_might_fail git branch -D eggs &&

	git checkout eggs &&
	status_uno_is_clean &&
	test_branch eggs &&
	test_cmp_rev refs/repo_d/eggs HEAD &&
	test_branch_upstream eggs repo_d eggs
'

test_expect_success 'checkout of branch with a file having the same name fails' '
	git checkout -B master &&
	status_uno_is_clean &&
	test_might_fail git branch -D spam &&

	>spam &&
	test_must_fail git checkout spam &&
	status_uno_is_clean &&
	test_must_fail git rev-parse --verify refs/heads/spam &&
	test_branch master
'

test_expect_success 'checkout of branch with a file in subdir having the same name fails' '
	git checkout -B master &&
	status_uno_is_clean &&
	test_might_fail git branch -D spam &&

	>spam &&
	mkdir sub &&
	mv spam sub/spam &&
	test_must_fail git -C sub checkout spam &&
	status_uno_is_clean &&
	test_must_fail git rev-parse --verify refs/heads/spam &&
	test_branch master
'

test_expect_success 'checkout <branch> -- succeeds, even if a file with the same name exists' '
	git checkout -B master &&
	status_uno_is_clean &&
	test_might_fail git branch -D spam &&

	>spam &&
	git checkout spam -- &&
	status_uno_is_clean &&
	test_branch spam &&
	test_cmp_rev refs/remotes/extra_dir/repo_c/extra_dir/spam HEAD &&
	test_branch_upstream spam repo_c spam
'

test_expect_success 'loosely defined local base branch is reported correctly' '

	git checkout master &&
	status_uno_is_clean &&
	git branch strict &&
	git branch loose &&
	git commit --allow-empty -m "a bit more" &&

	test_config branch.strict.remote . &&
	test_config branch.loose.remote . &&
	test_config branch.strict.merge refs/heads/master &&
	test_config branch.loose.merge master &&

	git checkout strict | sed -e "s/strict/BRANCHNAME/g" >expect &&
	status_uno_is_clean &&
	git checkout loose | sed -e "s/loose/BRANCHNAME/g" >actual &&
	status_uno_is_clean &&

	test_cmp expect actual
'

test_expect_success 'reject when arg could be part of dwim branch' '
	git remote add foo file://non-existent-place &&
	git update-ref refs/remotes/foo/dwim-arg HEAD &&
	echo foo >dwim-arg &&
	git add dwim-arg &&
	echo bar >dwim-arg &&
	test_must_fail git checkout dwim-arg &&
	test_must_fail git rev-parse refs/heads/dwim-arg -- &&
	grep bar dwim-arg
'

test_expect_success 'disambiguate dwim branch and checkout path (1)' '
	git update-ref refs/remotes/foo/dwim-arg1 HEAD &&
	echo foo >dwim-arg1 &&
	git add dwim-arg1 &&
	echo bar >dwim-arg1 &&
	git checkout -- dwim-arg1 &&
	test_must_fail git rev-parse refs/heads/dwim-arg1 -- &&
	grep foo dwim-arg1
'

test_expect_success 'disambiguate dwim branch and checkout path (2)' '
	git update-ref refs/remotes/foo/dwim-arg2 HEAD &&
	echo foo >dwim-arg2 &&
	git add dwim-arg2 &&
	echo bar >dwim-arg2 &&
	git checkout dwim-arg2 -- &&
	git rev-parse refs/heads/dwim-arg2 -- &&
	grep bar dwim-arg2
'

test_done