3 # Copyright (c) 2007 Lars Hjemli
6 test_description='git merge
8 Testing basic merge operations/option parsing.
17 * [master] Merge commit 'c1'
19 - [master] Merge commit 'c1'
26 +++++++* [c0] commit 0
31 printf '%s\n' 1 2 3 4 5 6 7 8 9 >file
32 printf '%s\n' '1 X' 2 3 4 5 6 7 8 9 >file.1
33 printf '%s\n' 1 2 3 4 '5 X' 6 7 8 9 >file.5
34 printf '%s\n' 1 2 3 4 5 6 7 8 '9 X' >file.9
35 printf '%s\n' '1 X' 2 3 4 5 6 7 8 9 >result.1
36 printf '%s\n' '1 X' 2 3 4 '5 X' 6 7 8 9 >result.1-5
37 printf '%s\n' '1 X' 2 3 4 '5 X' 6 7 8 '9 X' >result.1-5-9
39 create_merge_msgs () {
40 echo "Merge commit 'c2'" >msg.1-5 &&
41 echo "Merge commit 'c2'; commit 'c3'" >msg.1-5-9 &&
43 echo "Squashed commit of the following:" &&
45 git log --no-merges ^HEAD c1
48 echo "Squashed commit of the following:" &&
50 git log --no-merges ^HEAD c2
53 echo "Squashed commit of the following:" &&
55 git log --no-merges ^HEAD c2 c3
59 echo "* commit 'c3':" &&
67 git update-index --refresh &&
68 git diff --exit-code &&
71 git show -s --pretty=format:%s HEAD >msg.act &&
77 echo "$1" >head.expected &&
78 git rev-parse HEAD >head.actual &&
79 test_cmp head.expected head.actual
83 printf '%s\n' "$@" >parents.expected &&
88 git rev-parse HEAD^$i >>parents.actual &&
92 test_must_fail git rev-parse --verify "HEAD^$i" &&
93 test_cmp parents.expected parents.actual
96 verify_mergeheads () {
97 printf '%s\n' "$@" >mergehead.expected &&
98 test_cmp mergehead.expected .git/MERGE_HEAD
101 verify_no_mergehead () {
102 ! test -e .git/MERGE_HEAD
105 test_expect_success 'setup' '
108 git commit -m "commit 0" &&
110 c0=$(git rev-parse HEAD) &&
114 git commit -m "commit 1" &&
116 c1=$(git rev-parse HEAD) &&
117 git reset --hard "$c0" &&
121 git commit -m "commit 2" &&
123 c2=$(git rev-parse HEAD) &&
124 git reset --hard "$c0" &&
128 git commit -m "commit 3" &&
130 c3=$(git rev-parse HEAD)
131 git reset --hard "$c0" &&
135 test_debug 'git log --graph --decorate --oneline --all'
137 test_expect_success 'test option parsing' '
138 test_must_fail git merge -$ c1 &&
139 test_must_fail git merge --no-such c1 &&
140 test_must_fail git merge -s foobar c1 &&
141 test_must_fail git merge -s=foobar c1 &&
142 test_must_fail git merge -m &&
143 test_must_fail git merge
146 test_expect_success 'merge -h with invalid index' '
152 test_expect_code 129 git merge -h 2>usage
154 grep "[Uu]sage: git merge" broken/usage
157 test_expect_success 'reject non-strategy with a git-merge-foo name' '
158 test_must_fail git merge -s index c1
161 test_expect_success 'merge c0 with c1' '
162 echo "OBJID HEAD@{0}: merge c1: Fast-forward" >reflog.expected &&
164 git reset --hard c0 &&
166 verify_merge file result.1 &&
169 git reflog -1 >reflog.actual &&
170 sed "s/$_x05[0-9a-f]*/OBJID/g" reflog.actual >reflog.fuzzy &&
171 test_cmp reflog.expected reflog.fuzzy
174 test_debug 'git log --graph --decorate --oneline --all'
176 test_expect_success 'merge c0 with c1 with --ff-only' '
177 git reset --hard c0 &&
178 git merge --ff-only c1 &&
179 git merge --ff-only HEAD c0 c1 &&
180 verify_merge file result.1 &&
184 test_debug 'git log --graph --decorate --oneline --all'
186 test_expect_success 'merge from unborn branch' '
187 git checkout -f master &&
188 test_might_fail git branch -D kid &&
190 echo "OBJID HEAD@{0}: initial pull" >reflog.expected &&
192 git checkout --orphan kid &&
193 test_when_finished "git checkout -f master" &&
196 git merge --ff-only c1 &&
197 verify_merge file result.1 &&
200 git reflog -1 >reflog.actual &&
201 sed "s/$_x05[0-9a-f][0-9a-f]/OBJID/g" reflog.actual >reflog.fuzzy &&
202 test_cmp reflog.expected reflog.fuzzy
205 test_debug 'git log --graph --decorate --oneline --all'
207 test_expect_success 'merge c1 with c2' '
208 git reset --hard c1 &&
211 verify_merge file result.1-5 msg.1-5 &&
212 verify_parents $c1 $c2
215 test_debug 'git log --graph --decorate --oneline --all'
217 test_expect_success 'merge c1 with c2 and c3' '
218 git reset --hard c1 &&
221 verify_merge file result.1-5-9 msg.1-5-9 &&
222 verify_parents $c1 $c2 $c3
225 test_debug 'git log --graph --decorate --oneline --all'
227 test_expect_success 'failing merges with --ff-only' '
228 git reset --hard c1 &&
230 test_must_fail git merge --ff-only c2 &&
231 test_must_fail git merge --ff-only c3 &&
232 test_must_fail git merge --ff-only c2 c3
235 test_expect_success 'merge c0 with c1 (no-commit)' '
236 git reset --hard c0 &&
237 git merge --no-commit c1 &&
238 verify_merge file result.1 &&
242 test_debug 'git log --graph --decorate --oneline --all'
244 test_expect_success 'merge c1 with c2 (no-commit)' '
245 git reset --hard c1 &&
246 git merge --no-commit c2 &&
247 verify_merge file result.1-5 &&
249 verify_mergeheads $c2
252 test_debug 'git log --graph --decorate --oneline --all'
254 test_expect_success 'merge c1 with c2 and c3 (no-commit)' '
255 git reset --hard c1 &&
256 git merge --no-commit c2 c3 &&
257 verify_merge file result.1-5-9 &&
259 verify_mergeheads $c2 $c3
262 test_debug 'git log --graph --decorate --oneline --all'
264 test_expect_success 'merge c0 with c1 (squash)' '
265 git reset --hard c0 &&
266 git merge --squash c1 &&
267 verify_merge file result.1 &&
269 verify_no_mergehead &&
270 test_cmp squash.1 .git/SQUASH_MSG
273 test_debug 'git log --graph --decorate --oneline --all'
275 test_expect_success 'merge c0 with c1 (squash, ff-only)' '
276 git reset --hard c0 &&
277 git merge --squash --ff-only c1 &&
278 verify_merge file result.1 &&
280 verify_no_mergehead &&
281 test_cmp squash.1 .git/SQUASH_MSG
284 test_debug 'git log --graph --decorate --oneline --all'
286 test_expect_success 'merge c1 with c2 (squash)' '
287 git reset --hard c1 &&
288 git merge --squash c2 &&
289 verify_merge file result.1-5 &&
291 verify_no_mergehead &&
292 test_cmp squash.1-5 .git/SQUASH_MSG
295 test_debug 'git log --graph --decorate --oneline --all'
297 test_expect_success 'unsuccesful merge of c1 with c2 (squash, ff-only)' '
298 git reset --hard c1 &&
299 test_must_fail git merge --squash --ff-only c2
302 test_debug 'git log --graph --decorate --oneline --all'
304 test_expect_success 'merge c1 with c2 and c3 (squash)' '
305 git reset --hard c1 &&
306 git merge --squash c2 c3 &&
307 verify_merge file result.1-5-9 &&
309 verify_no_mergehead &&
310 test_cmp squash.1-5-9 .git/SQUASH_MSG
313 test_debug 'git log --graph --decorate --oneline --all'
315 test_expect_success 'merge c1 with c2 (no-commit in config)' '
316 git reset --hard c1 &&
317 git config branch.master.mergeoptions "--no-commit" &&
319 verify_merge file result.1-5 &&
321 verify_mergeheads $c2
324 test_debug 'git log --graph --decorate --oneline --all'
326 test_expect_success 'merge c1 with c2 (log in config)' '
327 git config branch.master.mergeoptions "" &&
328 git reset --hard c1 &&
329 git merge --log c2 &&
330 git show -s --pretty=tformat:%s%n%b >expect &&
332 git config branch.master.mergeoptions --log &&
333 git reset --hard c1 &&
335 git show -s --pretty=tformat:%s%n%b >actual &&
337 test_cmp expect actual
340 test_expect_success 'merge c1 with c2 (log in config gets overridden)' '
342 git config --remove-section branch.master
343 git config --remove-section merge
345 git reset --hard c1 &&
347 git show -s --pretty=tformat:%s%n%b >expect &&
349 git config branch.master.mergeoptions "--no-log" &&
350 git config merge.log true &&
351 git reset --hard c1 &&
353 git show -s --pretty=tformat:%s%n%b >actual &&
355 test_cmp expect actual
358 test_expect_success 'merge c1 with c2 (squash in config)' '
359 git reset --hard c1 &&
360 git config branch.master.mergeoptions "--squash" &&
362 verify_merge file result.1-5 &&
364 verify_no_mergehead &&
365 test_cmp squash.1-5 .git/SQUASH_MSG
368 test_debug 'git log --graph --decorate --oneline --all'
370 test_expect_success 'override config option -n with --summary' '
371 git reset --hard c1 &&
372 git config branch.master.mergeoptions "-n" &&
374 git merge --summary c2 >diffstat.txt &&
375 verify_merge file result.1-5 msg.1-5 &&
376 verify_parents $c1 $c2 &&
377 if ! grep "^ file | *2 +-$" diffstat.txt
379 echo "[OOPS] diffstat was not generated with --summary"
384 test_expect_success 'override config option -n with --stat' '
385 git reset --hard c1 &&
386 git config branch.master.mergeoptions "-n" &&
388 git merge --stat c2 >diffstat.txt &&
389 verify_merge file result.1-5 msg.1-5 &&
390 verify_parents $c1 $c2 &&
391 if ! grep "^ file | *2 +-$" diffstat.txt
393 echo "[OOPS] diffstat was not generated with --stat"
398 test_debug 'git log --graph --decorate --oneline --all'
400 test_expect_success 'override config option --stat' '
401 git reset --hard c1 &&
402 git config branch.master.mergeoptions "--stat" &&
404 git merge -n c2 >diffstat.txt &&
405 verify_merge file result.1-5 msg.1-5 &&
406 verify_parents $c1 $c2 &&
407 if grep "^ file | *2 +-$" diffstat.txt
409 echo "[OOPS] diffstat was generated"
414 test_debug 'git log --graph --decorate --oneline --all'
416 test_expect_success 'merge c1 with c2 (override --no-commit)' '
417 git reset --hard c1 &&
418 git config branch.master.mergeoptions "--no-commit" &&
420 git merge --commit c2 &&
421 verify_merge file result.1-5 msg.1-5 &&
422 verify_parents $c1 $c2
425 test_debug 'git log --graph --decorate --oneline --all'
427 test_expect_success 'merge c1 with c2 (override --squash)' '
428 git reset --hard c1 &&
429 git config branch.master.mergeoptions "--squash" &&
431 git merge --no-squash c2 &&
432 verify_merge file result.1-5 msg.1-5 &&
433 verify_parents $c1 $c2
436 test_debug 'git log --graph --decorate --oneline --all'
438 test_expect_success 'merge c0 with c1 (no-ff)' '
439 git reset --hard c0 &&
440 git config branch.master.mergeoptions "" &&
442 git merge --no-ff c1 &&
443 verify_merge file result.1 &&
444 verify_parents $c0 $c1
447 test_debug 'git log --graph --decorate --oneline --all'
449 test_expect_success 'combining --squash and --no-ff is refused' '
450 test_must_fail git merge --squash --no-ff c1 &&
451 test_must_fail git merge --no-ff --squash c1
454 test_expect_success 'combining --ff-only and --no-ff is refused' '
455 test_must_fail git merge --ff-only --no-ff c1 &&
456 test_must_fail git merge --no-ff --ff-only c1
459 test_expect_success 'merge c0 with c1 (ff overrides no-ff)' '
460 git reset --hard c0 &&
461 git config branch.master.mergeoptions "--no-ff" &&
463 verify_merge file result.1 &&
467 test_expect_success 'merge log message' '
468 git reset --hard c0 &&
469 git merge --no-log c2 &&
470 git show -s --pretty=format:%b HEAD >msg.act &&
471 test_cmp msg.nolog msg.act &&
473 git merge --log c3 &&
474 git show -s --pretty=format:%b HEAD >msg.act &&
475 test_cmp msg.log msg.act &&
477 git reset --hard HEAD^ &&
478 git config merge.log yes &&
480 git show -s --pretty=format:%b HEAD >msg.act &&
481 test_cmp msg.log msg.act
484 test_debug 'git log --graph --decorate --oneline --all'
486 test_expect_success 'merge c1 with c0, c2, c0, and c1' '
487 git reset --hard c1 &&
488 git config branch.master.mergeoptions "" &&
490 git merge c0 c2 c0 c1 &&
491 verify_merge file result.1-5 &&
492 verify_parents $c1 $c2
495 test_debug 'git log --graph --decorate --oneline --all'
497 test_expect_success 'merge c1 with c0, c2, c0, and c1' '
498 git reset --hard c1 &&
499 git config branch.master.mergeoptions "" &&
501 git merge c0 c2 c0 c1 &&
502 verify_merge file result.1-5 &&
503 verify_parents $c1 $c2
506 test_debug 'git log --graph --decorate --oneline --all'
508 test_expect_success 'merge c1 with c1 and c2' '
509 git reset --hard c1 &&
510 git config branch.master.mergeoptions "" &&
513 verify_merge file result.1-5 &&
514 verify_parents $c1 $c2
517 test_debug 'git log --graph --decorate --oneline --all'
519 test_expect_success 'merge fast-forward in a dirty tree' '
520 git reset --hard c0 &&
527 test_debug 'git log --graph --decorate --oneline --all'
529 test_expect_success 'in-index merge' '
530 git reset --hard c0 &&
531 git merge --no-ff -s resolve c1 >out &&
532 test_i18ngrep "Wonderful." out &&
533 verify_parents $c0 $c1
536 test_debug 'git log --graph --decorate --oneline --all'
538 test_expect_success 'refresh the index before merging' '
539 git reset --hard c1 &&
540 cp file file.n && mv -f file.n file &&
544 cat >expected.branch <<\EOF
545 Merge branch 'c5-branch' (early part)
547 cat >expected.tag <<\EOF
551 test_expect_success 'merge early part of c2' '
552 git reset --hard c3 &&
561 git reset --hard c3 &&
566 git branch -f c5-branch c5 &&
567 git merge c5-branch~1 &&
568 git show -s --pretty=format:%s HEAD >actual.branch &&
569 git reset --keep HEAD^ &&
571 git show -s --pretty=format:%s HEAD >actual.tag &&
572 test_cmp expected.branch actual.branch &&
573 test_cmp expected.tag actual.tag
576 test_debug 'git log --graph --decorate --oneline --all'
578 test_expect_success 'merge --no-ff --no-commit && commit' '
579 git reset --hard c0 &&
580 git merge --no-ff --no-commit c1 &&
581 EDITOR=: git commit &&
582 verify_parents $c0 $c1
585 test_debug 'git log --graph --decorate --oneline --all'
587 test_expect_success 'amending no-ff merge commit' '
588 EDITOR=: git commit --amend &&
589 verify_parents $c0 $c1
592 test_debug 'git log --graph --decorate --oneline --all'