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1 #!/bin/sh
2 #
3 # Copyright (c) 2006 Junio C Hamano
4 #
5
6 test_description='git checkout tests.
7
8 Creates main, forks renamer and side branches from it.
9 Test switching across them.
10
11 ! [main] Initial A one, A two
12 * [renamer] Renamer R one->uno, M two
13 ! [side] Side M one, D two, A three
14 ! [simple] Simple D one, M two
15 ----
16 + [simple] Simple D one, M two
17 + [side] Side M one, D two, A three
18 * [renamer] Renamer R one->uno, M two
19 +*++ [main] Initial A one, A two
20
21 '
22
23 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
24 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
25
26 . ./test-lib.sh
27
28 test_tick
29
30 fill () {
31 for i
32 do
33 echo "$i"
34 done
35 }
36
37
38 test_expect_success setup '
39 fill x y z >same &&
40 fill 1 2 3 4 5 6 7 8 >one &&
41 fill a b c d e >two &&
42 git add same one two &&
43 git commit -m "Initial A one, A two" &&
44
45 git checkout -b renamer &&
46 rm -f one &&
47 fill 1 3 4 5 6 7 8 >uno &&
48 git add uno &&
49 fill a b c d e f >two &&
50 git commit -a -m "Renamer R one->uno, M two" &&
51
52 git checkout -b side main &&
53 fill 1 2 3 4 5 6 7 >one &&
54 fill A B C D E >three &&
55 rm -f two &&
56 git update-index --add --remove one two three &&
57 git commit -m "Side M one, D two, A three" &&
58
59 git checkout -b simple main &&
60 rm -f one &&
61 fill a c e >two &&
62 git commit -a -m "Simple D one, M two" &&
63
64 git checkout main
65 '
66
67 test_expect_success 'checkout from non-existing branch' '
68 git checkout -b delete-me main &&
69 git update-ref -d --no-deref refs/heads/delete-me &&
70 test refs/heads/delete-me = "$(git symbolic-ref HEAD)" &&
71 git checkout main &&
72 test refs/heads/main = "$(git symbolic-ref HEAD)"
73 '
74
75 test_expect_success 'checkout with dirty tree without -m' '
76 fill 0 1 2 3 4 5 6 7 8 >one &&
77 if git checkout side
78 then
79 echo Not happy
80 false
81 else
82 echo "happy - failed correctly"
83 fi
84 '
85
86 test_expect_success 'checkout with unrelated dirty tree without -m' '
87 git checkout -f main &&
88 fill 0 1 2 3 4 5 6 7 8 >same &&
89 cp same kept &&
90 git checkout side >messages &&
91 test_cmp same kept &&
92 printf "M\t%s\n" same >messages.expect &&
93 test_cmp messages.expect messages
94 '
95
96 test_expect_success 'checkout -m with dirty tree' '
97 git checkout -f main &&
98 git clean -f &&
99
100 fill 0 1 2 3 4 5 6 7 8 >one &&
101 git checkout -m side >messages &&
102
103 test "$(git symbolic-ref HEAD)" = "refs/heads/side" &&
104
105 printf "M\t%s\n" one >expect.messages &&
106 test_cmp expect.messages messages &&
107
108 fill "M one" "A three" "D two" >expect.main &&
109 git diff --name-status main >current.main &&
110 test_cmp expect.main current.main &&
111
112 fill "M one" >expect.side &&
113 git diff --name-status side >current.side &&
114 test_cmp expect.side current.side &&
115
116 git diff --cached >current.index &&
117 test_must_be_empty current.index
118 '
119
120 test_expect_success 'checkout -m with dirty tree, renamed' '
121 git checkout -f main && git clean -f &&
122
123 fill 1 2 3 4 5 7 8 >one &&
124 if git checkout renamer
125 then
126 echo Not happy
127 false
128 else
129 echo "happy - failed correctly"
130 fi &&
131
132 git checkout -m renamer &&
133 fill 1 3 4 5 7 8 >expect &&
134 test_cmp expect uno &&
135 ! test -f one &&
136 git diff --cached >current &&
137 test_must_be_empty current
138 '
139
140 test_expect_success 'checkout -m with merge conflict' '
141 git checkout -f main && git clean -f &&
142
143 fill 1 T 3 4 5 6 S 8 >one &&
144 if git checkout renamer
145 then
146 echo Not happy
147 false
148 else
149 echo "happy - failed correctly"
150 fi &&
151
152 git checkout -m renamer &&
153
154 git diff main:one :3:uno |
155 sed -e "1,/^@@/d" -e "/^ /d" -e "s/^-/d/" -e "s/^+/a/" >current &&
156 fill d2 aT d7 aS >expect &&
157 test_cmp expect current &&
158 git diff --cached two >current &&
159 test_must_be_empty current
160 '
161
162 test_expect_success 'format of merge conflict from checkout -m' '
163 git checkout -f main &&
164 git clean -f &&
165
166 fill b d >two &&
167 git checkout -m simple &&
168
169 git ls-files >current &&
170 fill same two two two >expect &&
171 test_cmp expect current &&
172
173 cat <<-EOF >expect &&
174 <<<<<<< simple
175 a
176 c
177 e
178 =======
179 b
180 d
181 >>>>>>> local
182 EOF
183 test_cmp expect two
184 '
185
186 test_expect_success 'checkout --merge --conflict=diff3 <branch>' '
187 git checkout -f main &&
188 git reset --hard &&
189 git clean -f &&
190
191 fill b d >two &&
192 git checkout --merge --conflict=diff3 simple &&
193
194 cat <<-EOF >expect &&
195 <<<<<<< simple
196 a
197 c
198 e
199 ||||||| main
200 a
201 b
202 c
203 d
204 e
205 =======
206 b
207 d
208 >>>>>>> local
209 EOF
210 test_cmp expect two
211 '
212
213 test_expect_success 'switch to another branch while carrying a deletion' '
214 git checkout -f main &&
215 git reset --hard &&
216 git clean -f &&
217 git rm two &&
218
219 test_must_fail git checkout simple 2>errs &&
220 test_grep overwritten errs &&
221
222 test_must_fail git read-tree --quiet -m -u HEAD simple 2>errs &&
223 test_must_be_empty errs
224 '
225
226 test_expect_success 'checkout to detach HEAD (with advice declined)' '
227 git config advice.detachedHead false &&
228 rev=$(git rev-parse --short renamer^) &&
229 git checkout -f renamer &&
230 git clean -f &&
231 git checkout renamer^ 2>messages &&
232 test_grep "HEAD is now at $rev" messages &&
233 test_line_count = 1 messages &&
234 H=$(git rev-parse --verify HEAD) &&
235 M=$(git show-ref -s --verify refs/heads/main) &&
236 test "z$H" = "z$M" &&
237 if git symbolic-ref HEAD >/dev/null 2>&1
238 then
239 echo "OOPS, HEAD is still symbolic???"
240 false
241 else
242 : happy
243 fi
244 '
245
246 test_expect_success 'checkout to detach HEAD' '
247 git config advice.detachedHead true &&
248 rev=$(git rev-parse --short renamer^) &&
249 git checkout -f renamer &&
250 git clean -f &&
251 git checkout renamer^ 2>messages &&
252 grep "HEAD is now at $rev" messages &&
253 test_line_count -gt 1 messages &&
254 H=$(git rev-parse --verify HEAD) &&
255 M=$(git show-ref -s --verify refs/heads/main) &&
256 test "z$H" = "z$M" &&
257 if git symbolic-ref HEAD >/dev/null 2>&1
258 then
259 echo "OOPS, HEAD is still symbolic???"
260 false
261 else
262 : happy
263 fi
264 '
265
266 test_expect_success 'checkout to detach HEAD with branchname^' '
267 git checkout -f main &&
268 git clean -f &&
269 git checkout renamer^ &&
270 H=$(git rev-parse --verify HEAD) &&
271 M=$(git show-ref -s --verify refs/heads/main) &&
272 test "z$H" = "z$M" &&
273 if git symbolic-ref HEAD >/dev/null 2>&1
274 then
275 echo "OOPS, HEAD is still symbolic???"
276 false
277 else
278 : happy
279 fi
280 '
281
282 test_expect_success 'checkout to detach HEAD with :/message' '
283 git checkout -f main &&
284 git clean -f &&
285 git checkout ":/Initial" &&
286 H=$(git rev-parse --verify HEAD) &&
287 M=$(git show-ref -s --verify refs/heads/main) &&
288 test "z$H" = "z$M" &&
289 if git symbolic-ref HEAD >/dev/null 2>&1
290 then
291 echo "OOPS, HEAD is still symbolic???"
292 false
293 else
294 : happy
295 fi
296 '
297
298 test_expect_success 'checkout to detach HEAD with HEAD^0' '
299 git checkout -f main &&
300 git clean -f &&
301 git checkout HEAD^0 &&
302 H=$(git rev-parse --verify HEAD) &&
303 M=$(git show-ref -s --verify refs/heads/main) &&
304 test "z$H" = "z$M" &&
305 if git symbolic-ref HEAD >/dev/null 2>&1
306 then
307 echo "OOPS, HEAD is still symbolic???"
308 false
309 else
310 : happy
311 fi
312 '
313
314 test_expect_success 'checkout with ambiguous tag/branch names' '
315 git tag both side &&
316 git branch both main &&
317 git reset --hard &&
318 git checkout main &&
319
320 git checkout both &&
321 H=$(git rev-parse --verify HEAD) &&
322 M=$(git show-ref -s --verify refs/heads/main) &&
323 test "z$H" = "z$M" &&
324 name=$(git symbolic-ref HEAD 2>/dev/null) &&
325 test "z$name" = zrefs/heads/both
326 '
327
328 test_expect_success 'checkout with ambiguous tag/branch names' '
329 git reset --hard &&
330 git checkout main &&
331
332 git tag frotz side &&
333 git branch frotz main &&
334 git reset --hard &&
335 git checkout main &&
336
337 git checkout tags/frotz &&
338 H=$(git rev-parse --verify HEAD) &&
339 S=$(git show-ref -s --verify refs/heads/side) &&
340 test "z$H" = "z$S" &&
341 if name=$(git symbolic-ref HEAD 2>/dev/null)
342 then
343 echo "Bad -- should have detached"
344 false
345 else
346 : happy
347 fi
348 '
349
350 test_expect_success 'switch branches while in subdirectory' '
351 git reset --hard &&
352 git checkout main &&
353
354 mkdir subs &&
355 git -C subs checkout side &&
356 ! test -f subs/one &&
357 rm -fr subs
358 '
359
360 test_expect_success 'checkout specific path while in subdirectory' '
361 git reset --hard &&
362 git checkout side &&
363 mkdir subs &&
364 >subs/bero &&
365 git add subs/bero &&
366 git commit -m "add subs/bero" &&
367
368 git checkout main &&
369 mkdir -p subs &&
370 git -C subs checkout side -- bero &&
371 test -f subs/bero
372 '
373
374 test_expect_success 'checkout w/--track sets up tracking' '
375 git config branch.autosetupmerge false &&
376 git checkout main &&
377 git checkout --track -b track1 &&
378 test "$(git config branch.track1.remote)" &&
379 test "$(git config branch.track1.merge)"
380 '
381
382 test_expect_success 'checkout w/autosetupmerge=always sets up tracking' '
383 test_when_finished git config branch.autosetupmerge false &&
384 git config branch.autosetupmerge always &&
385 git checkout main &&
386 git checkout -b track2 &&
387 test "$(git config branch.track2.remote)" &&
388 test "$(git config branch.track2.merge)"
389 '
390
391 test_expect_success 'checkout w/--track from non-branch HEAD fails' '
392 git checkout main^0 &&
393 test_must_fail git symbolic-ref HEAD &&
394 test_must_fail git checkout --track -b track &&
395 test_must_fail git rev-parse --verify track &&
396 test_must_fail git symbolic-ref HEAD &&
397 test "z$(git rev-parse main^0)" = "z$(git rev-parse HEAD)"
398 '
399
400 test_expect_success 'checkout w/--track from tag fails' '
401 git checkout main^0 &&
402 test_must_fail git symbolic-ref HEAD &&
403 test_must_fail git checkout --track -b track frotz &&
404 test_must_fail git rev-parse --verify track &&
405 test_must_fail git symbolic-ref HEAD &&
406 test "z$(git rev-parse main^0)" = "z$(git rev-parse HEAD)"
407 '
408
409 test_expect_success 'detach a symbolic link HEAD' '
410 git checkout main &&
411 git config --bool core.prefersymlinkrefs yes &&
412 git checkout side &&
413 git checkout main &&
414 it=$(git symbolic-ref HEAD) &&
415 test "z$it" = zrefs/heads/main &&
416 here=$(git rev-parse --verify refs/heads/main) &&
417 git checkout side^ &&
418 test "z$(git rev-parse --verify refs/heads/main)" = "z$here"
419 '
420
421 test_expect_success 'checkout with --track fakes a sensible -b <name>' '
422 git config remote.origin.fetch "+refs/heads/*:refs/remotes/origin/*" &&
423 git update-ref refs/remotes/origin/koala/bear renamer &&
424
425 git checkout --track origin/koala/bear &&
426 test "refs/heads/koala/bear" = "$(git symbolic-ref HEAD)" &&
427 test "$(git rev-parse HEAD)" = "$(git rev-parse renamer)" &&
428
429 git checkout main && git branch -D koala/bear &&
430
431 git checkout --track refs/remotes/origin/koala/bear &&
432 test "refs/heads/koala/bear" = "$(git symbolic-ref HEAD)" &&
433 test "$(git rev-parse HEAD)" = "$(git rev-parse renamer)" &&
434
435 git checkout main && git branch -D koala/bear &&
436
437 git checkout --track remotes/origin/koala/bear &&
438 test "refs/heads/koala/bear" = "$(git symbolic-ref HEAD)" &&
439 test "$(git rev-parse HEAD)" = "$(git rev-parse renamer)"
440 '
441
442 test_expect_success 'checkout with --track, but without -b, fails with too short tracked name' '
443 test_must_fail git checkout --track renamer
444 '
445
446 setup_conflicting_index () {
447 rm -f .git/index &&
448 O=$(echo original | git hash-object -w --stdin) &&
449 A=$(echo ourside | git hash-object -w --stdin) &&
450 B=$(echo theirside | git hash-object -w --stdin) &&
451 (
452 echo "100644 $A 0 fild" &&
453 echo "100644 $O 1 file" &&
454 echo "100644 $A 2 file" &&
455 echo "100644 $B 3 file" &&
456 echo "100644 $A 0 filf"
457 ) | git update-index --index-info
458 }
459
460 test_expect_success 'checkout an unmerged path should fail' '
461 setup_conflicting_index &&
462 echo "none of the above" >sample &&
463 cat sample >fild &&
464 cat sample >file &&
465 cat sample >filf &&
466 test_must_fail git checkout fild file filf &&
467 test_cmp sample fild &&
468 test_cmp sample filf &&
469 test_cmp sample file
470 '
471
472 test_expect_success 'checkout with an unmerged path can be ignored' '
473 setup_conflicting_index &&
474 echo "none of the above" >sample &&
475 echo ourside >expect &&
476 cat sample >fild &&
477 cat sample >file &&
478 cat sample >filf &&
479 git checkout -f fild file filf &&
480 test_cmp expect fild &&
481 test_cmp expect filf &&
482 test_cmp sample file
483 '
484
485 test_expect_success 'checkout unmerged stage' '
486 setup_conflicting_index &&
487 echo "none of the above" >sample &&
488 echo ourside >expect &&
489 cat sample >fild &&
490 cat sample >file &&
491 cat sample >filf &&
492 git checkout --ours . &&
493 test_cmp expect fild &&
494 test_cmp expect filf &&
495 test_cmp expect file &&
496 git checkout --theirs file &&
497 test ztheirside = "z$(cat file)"
498 '
499
500 test_expect_success 'checkout path with --merge from tree-ish is a no-no' '
501 setup_conflicting_index &&
502 test_must_fail git checkout -m HEAD -- file
503 '
504
505 test_expect_success 'checkout with --merge' '
506 setup_conflicting_index &&
507 echo "none of the above" >sample &&
508 echo ourside >expect &&
509 cat sample >fild &&
510 cat sample >file &&
511 cat sample >filf &&
512 git checkout -m -- fild file filf &&
513 (
514 echo "<<<<<<< ours" &&
515 echo ourside &&
516 echo "=======" &&
517 echo theirside &&
518 echo ">>>>>>> theirs"
519 ) >merged &&
520 test_cmp expect fild &&
521 test_cmp expect filf &&
522 test_cmp merged file
523 '
524
525 test_expect_success 'checkout -m works after (mistaken) resolution' '
526 setup_conflicting_index &&
527 echo "none of the above" >sample &&
528 cat sample >fild &&
529 cat sample >file &&
530 cat sample >filf &&
531 # resolve to something
532 git add file &&
533 git checkout --merge -- fild file filf &&
534 {
535 echo "<<<<<<< ours" &&
536 echo ourside &&
537 echo "=======" &&
538 echo theirside &&
539 echo ">>>>>>> theirs"
540 } >merged &&
541 test_cmp expect fild &&
542 test_cmp expect filf &&
543 test_cmp merged file
544 '
545
546 test_expect_success 'checkout -m works after (mistaken) resolution to remove' '
547 setup_conflicting_index &&
548 echo "none of the above" >sample &&
549 cat sample >fild &&
550 cat sample >file &&
551 cat sample >filf &&
552 # resolve to remove
553 git rm file &&
554 git checkout --merge -- fild file filf &&
555 {
556 echo "<<<<<<< ours" &&
557 echo ourside &&
558 echo "=======" &&
559 echo theirside &&
560 echo ">>>>>>> theirs"
561 } >merged &&
562 test_cmp expect fild &&
563 test_cmp expect filf &&
564 test_cmp merged file
565 '
566
567 test_expect_success 'checkout with --merge, in diff3 -m style' '
568 git config merge.conflictstyle diff3 &&
569 setup_conflicting_index &&
570 echo "none of the above" >sample &&
571 echo ourside >expect &&
572 cat sample >fild &&
573 cat sample >file &&
574 cat sample >filf &&
575 git checkout -m -- fild file filf &&
576 (
577 echo "<<<<<<< ours" &&
578 echo ourside &&
579 echo "||||||| base" &&
580 echo original &&
581 echo "=======" &&
582 echo theirside &&
583 echo ">>>>>>> theirs"
584 ) >merged &&
585 test_cmp expect fild &&
586 test_cmp expect filf &&
587 test_cmp merged file
588 '
589
590 test_expect_success 'checkout --conflict=merge, overriding config' '
591 git config merge.conflictstyle diff3 &&
592 setup_conflicting_index &&
593 echo "none of the above" >sample &&
594 echo ourside >expect &&
595 cat sample >fild &&
596 cat sample >file &&
597 cat sample >filf &&
598 git checkout --conflict=merge -- fild file filf &&
599 (
600 echo "<<<<<<< ours" &&
601 echo ourside &&
602 echo "=======" &&
603 echo theirside &&
604 echo ">>>>>>> theirs"
605 ) >merged &&
606 test_cmp expect fild &&
607 test_cmp expect filf &&
608 test_cmp merged file
609 '
610
611 test_expect_success 'checkout --conflict=diff3' '
612 test_unconfig merge.conflictstyle &&
613 setup_conflicting_index &&
614 echo "none of the above" >sample &&
615 echo ourside >expect &&
616 cat sample >fild &&
617 cat sample >file &&
618 cat sample >filf &&
619 git checkout --conflict=diff3 -- fild file filf &&
620 (
621 echo "<<<<<<< ours" &&
622 echo ourside &&
623 echo "||||||| base" &&
624 echo original &&
625 echo "=======" &&
626 echo theirside &&
627 echo ">>>>>>> theirs"
628 ) >merged &&
629 test_cmp expect fild &&
630 test_cmp expect filf &&
631 test_cmp merged file
632 '
633
634 test_expect_success 'failing checkout -b should not break working tree' '
635 git clean -fd && # Remove untracked files in the way
636 git reset --hard main &&
637 git symbolic-ref HEAD refs/heads/main &&
638 test_must_fail git checkout -b renamer side^ &&
639 test $(git symbolic-ref HEAD) = refs/heads/main &&
640 git diff --exit-code &&
641 git diff --cached --exit-code
642 '
643
644 test_expect_success 'switch out of non-branch' '
645 git reset --hard main &&
646 git checkout main^0 &&
647 echo modified >one &&
648 test_must_fail git checkout renamer 2>error.log &&
649 ! grep "^Previous HEAD" error.log
650 '
651
652 (
653 echo "#!$SHELL_PATH"
654 cat <<\EOF
655 O=$1 A=$2 B=$3
656 cat "$A" >.tmp
657 exec >"$A"
658 echo '<<<<<<< filfre-theirs'
659 cat "$B"
660 echo '||||||| filfre-common'
661 cat "$O"
662 echo '======='
663 cat ".tmp"
664 echo '>>>>>>> filfre-ours'
665 rm -f .tmp
666 exit 1
667 EOF
668 ) >filfre.sh
669 chmod +x filfre.sh
670
671 test_expect_success 'custom merge driver with checkout -m' '
672 git reset --hard &&
673
674 git config merge.filfre.driver "./filfre.sh %O %A %B" &&
675 git config merge.filfre.name "Feel-free merge driver" &&
676 git config merge.filfre.recursive binary &&
677 echo "arm merge=filfre" >.gitattributes &&
678
679 git checkout -b left &&
680 echo neutral >arm &&
681 git add arm .gitattributes &&
682 test_tick &&
683 git commit -m neutral &&
684 git branch right &&
685
686 echo left >arm &&
687 test_tick &&
688 git commit -a -m left &&
689 git checkout right &&
690
691 echo right >arm &&
692 test_tick &&
693 git commit -a -m right &&
694
695 test_must_fail git merge left &&
696 (
697 for t in filfre-common left right
698 do
699 grep $t arm || exit 1
700 done
701 ) &&
702
703 mv arm expect &&
704 git checkout -m arm &&
705 test_cmp expect arm
706 '
707
708 test_expect_success 'tracking info copied with autoSetupMerge=inherit' '
709 git reset --hard main &&
710 # default config does not copy tracking info
711 git checkout -b foo-no-inherit koala/bear &&
712 test_cmp_config "" --default "" branch.foo-no-inherit.remote &&
713 test_cmp_config "" --default "" branch.foo-no-inherit.merge &&
714 # with autoSetupMerge=inherit, we copy tracking info from koala/bear
715 test_config branch.autoSetupMerge inherit &&
716 git checkout -b foo koala/bear &&
717 test_cmp_config origin branch.foo.remote &&
718 test_cmp_config refs/heads/koala/bear branch.foo.merge &&
719 # no tracking info to inherit from main
720 git checkout -b main2 main &&
721 test_cmp_config "" --default "" branch.main2.remote &&
722 test_cmp_config "" --default "" branch.main2.merge
723 '
724
725 test_done