t/t3507-cherry-pick-conflict.sh

   1 #!/bin/sh
   2
   3 test_description='test cherry-pick and revert with conflicts
   4
   5   -
   6   + picked: rewrites foo to c
   7   + base: rewrites foo to b
   8   + initial: writes foo as a, unrelated as unrelated
   9
  10 '
  11
  12 . ./test-lib.sh
  13
  14 pristine_detach () {
  15         git checkout -f "$1^0" &&
  16         git read-tree -u --reset HEAD &&
  17         git clean -d -f -f -q -x
  18 }
  19
  20 test_expect_success setup '
  21
  22         echo unrelated >unrelated &&
  23         git add unrelated &&
  24         test_commit initial foo a &&
  25         test_commit base foo b &&
  26         test_commit picked foo c &&
  27         test_commit --signoff picked-signed foo d &&
  28         git checkout -b topic initial &&
  29         test_commit redundant-pick foo c redundant &&
  30         git commit --allow-empty --allow-empty-message &&
  31         git tag empty &&
  32         git checkout master &&
  33         git config advice.detachedhead false
  34
  35 '
  36
  37 test_expect_success 'failed cherry-pick does not advance HEAD' '
  38         pristine_detach initial &&
  39
  40         head=$(git rev-parse HEAD) &&
  41         test_must_fail git cherry-pick picked &&
  42         newhead=$(git rev-parse HEAD) &&
  43
  44         test "$head" = "$newhead"
  45 '
  46
  47 test_expect_success 'advice from failed cherry-pick' "
  48         pristine_detach initial &&
  49
  50         picked=\$(git rev-parse --short picked) &&
  51         cat <<-EOF >expected &&
  52         error: could not apply \$picked... picked
  53         hint: after resolving the conflicts, mark the corrected paths
  54         hint: with 'git add <paths>' or 'git rm <paths>'
  55         hint: and commit the result with 'git commit'
  56         EOF
  57         test_must_fail git cherry-pick picked 2>actual &&
  58
  59         test_i18ncmp expected actual
  60 "
  61
  62 test_expect_success 'advice from failed cherry-pick --no-commit' "
  63         pristine_detach initial &&
  64
  65         picked=\$(git rev-parse --short picked) &&
  66         cat <<-EOF >expected &&
  67         error: could not apply \$picked... picked
  68         hint: after resolving the conflicts, mark the corrected paths
  69         hint: with 'git add <paths>' or 'git rm <paths>'
  70         EOF
  71         test_must_fail git cherry-pick --no-commit picked 2>actual &&
  72
  73         test_i18ncmp expected actual
  74 "
  75
  76 test_expect_success 'failed cherry-pick sets CHERRY_PICK_HEAD' '
  77         pristine_detach initial &&
  78         test_must_fail git cherry-pick picked &&
  79         test_cmp_rev picked CHERRY_PICK_HEAD
  80 '
  81
  82 test_expect_success 'successful cherry-pick does not set CHERRY_PICK_HEAD' '
  83         pristine_detach initial &&
  84         git cherry-pick base &&
  85         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
  86 '
  87
  88 test_expect_success 'cherry-pick --no-commit does not set CHERRY_PICK_HEAD' '
  89         pristine_detach initial &&
  90         git cherry-pick --no-commit base &&
  91         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
  92 '
  93
  94 test_expect_success 'cherry-pick w/dirty tree does not set CHERRY_PICK_HEAD' '
  95         pristine_detach initial &&
  96         echo foo >foo &&
  97         test_must_fail git cherry-pick base &&
  98         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
  99 '
 100
 101 test_expect_success \
 102         'cherry-pick --strategy=resolve w/dirty tree does not set CHERRY_PICK_HEAD' '
 103         pristine_detach initial &&
 104         echo foo >foo &&
 105         test_must_fail git cherry-pick --strategy=resolve base &&
 106         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
 107 '
 108
 109 test_expect_success 'GIT_CHERRY_PICK_HELP suppresses CHERRY_PICK_HEAD' '
 110         pristine_detach initial &&
 111         (
 112                 GIT_CHERRY_PICK_HELP="and then do something else" &&
 113                 export GIT_CHERRY_PICK_HELP &&
 114                 test_must_fail git cherry-pick picked
 115         ) &&
 116         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
 117 '
 118
 119 test_expect_success 'git reset clears CHERRY_PICK_HEAD' '
 120         pristine_detach initial &&
 121
 122         test_must_fail git cherry-pick picked &&
 123         git reset &&
 124
 125         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
 126 '
 127
 128 test_expect_success 'failed commit does not clear CHERRY_PICK_HEAD' '
 129         pristine_detach initial &&
 130
 131         test_must_fail git cherry-pick picked &&
 132         test_must_fail git commit &&
 133
 134         test_cmp_rev picked CHERRY_PICK_HEAD
 135 '
 136
 137 test_expect_success 'cancelled commit does not clear CHERRY_PICK_HEAD' '
 138         pristine_detach initial &&
 139
 140         test_must_fail git cherry-pick picked &&
 141         echo resolved >foo &&
 142         git add foo &&
 143         git update-index --refresh -q &&
 144         test_must_fail git diff-index --exit-code HEAD &&
 145         (
 146                 GIT_EDITOR=false &&
 147                 export GIT_EDITOR &&
 148                 test_must_fail git commit
 149         ) &&
 150
 151         test_cmp_rev picked CHERRY_PICK_HEAD
 152 '
 153
 154 test_expect_success 'successful commit clears CHERRY_PICK_HEAD' '
 155         pristine_detach initial &&
 156
 157         test_must_fail git cherry-pick picked &&
 158         echo resolved >foo &&
 159         git add foo &&
 160         git commit &&
 161
 162         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
 163 '
 164 test_expect_success 'successful final commit clears cherry-pick state' '
 165         pristine_detach initial &&
 166
 167         test_must_fail git cherry-pick base picked-signed &&
 168         echo resolved >foo &&
 169         test_path_is_file .git/sequencer/todo &&
 170         git commit -a &&
 171         test_must_fail test_path_exists .git/sequencer
 172 '
 173
 174 test_expect_success 'reset after final pick clears cherry-pick state' '
 175         pristine_detach initial &&
 176
 177         test_must_fail git cherry-pick base picked-signed &&
 178         echo resolved >foo &&
 179         test_path_is_file .git/sequencer/todo &&
 180         git reset &&
 181         test_must_fail test_path_exists .git/sequencer
 182 '
 183
 184 test_expect_success 'failed cherry-pick produces dirty index' '
 185         pristine_detach initial &&
 186
 187         test_must_fail git cherry-pick picked &&
 188
 189         test_must_fail git update-index --refresh -q &&
 190         test_must_fail git diff-index --exit-code HEAD
 191 '
 192
 193 test_expect_success 'failed cherry-pick registers participants in index' '
 194         pristine_detach initial &&
 195         {
 196                 git checkout base -- foo &&
 197                 git ls-files --stage foo &&
 198                 git checkout initial -- foo &&
 199                 git ls-files --stage foo &&
 200                 git checkout picked -- foo &&
 201                 git ls-files --stage foo
 202         } >stages &&
 203         sed "
 204                 1 s/ 0  / 1     /
 205                 2 s/ 0  / 2     /
 206                 3 s/ 0  / 3     /
 207         " stages >expected &&
 208         git read-tree -u --reset HEAD &&
 209
 210         test_must_fail git cherry-pick picked &&
 211         git ls-files --stage --unmerged >actual &&
 212
 213         test_cmp expected actual
 214 '
 215
 216 test_expect_success \
 217         'cherry-pick conflict, ensure commit.cleanup = scissors places scissors line properly' '
 218         pristine_detach initial &&
 219         git config commit.cleanup scissors &&
 220         cat <<-EOF >expected &&
 221                 picked
 222
 223                 # ------------------------ >8 ------------------------
 224                 # Do not modify or remove the line above.
 225                 # Everything below it will be ignored.
 226                 #
 227                 # Conflicts:
 228                 #       foo
 229                 EOF
 230
 231         test_must_fail git cherry-pick picked &&
 232
 233         test_i18ncmp expected .git/MERGE_MSG
 234 '
 235
 236 test_expect_success \
 237         'cherry-pick conflict, ensure cleanup=scissors places scissors line properly' '
 238         pristine_detach initial &&
 239         git config --unset commit.cleanup &&
 240         cat <<-EOF >expected &&
 241                 picked
 242
 243                 # ------------------------ >8 ------------------------
 244                 # Do not modify or remove the line above.
 245                 # Everything below it will be ignored.
 246                 #
 247                 # Conflicts:
 248                 #       foo
 249                 EOF
 250
 251         test_must_fail git cherry-pick --cleanup=scissors picked &&
 252
 253         test_i18ncmp expected .git/MERGE_MSG
 254 '
 255
 256 test_expect_success 'failed cherry-pick describes conflict in work tree' '
 257         pristine_detach initial &&
 258         cat <<-EOF >expected &&
 259         <<<<<<< HEAD
 260         a
 261         =======
 262         c
 263         >>>>>>> objid picked
 264         EOF
 265
 266         test_must_fail git cherry-pick picked &&
 267
 268         sed "s/[a-f0-9]*\.\.\./objid/" foo >actual &&
 269         test_cmp expected actual
 270 '
 271
 272 test_expect_success 'diff3 -m style' '
 273         pristine_detach initial &&
 274         git config merge.conflictstyle diff3 &&
 275         cat <<-EOF >expected &&
 276         <<<<<<< HEAD
 277         a
 278         ||||||| parent of objid picked
 279         b
 280         =======
 281         c
 282         >>>>>>> objid picked
 283         EOF
 284
 285         test_must_fail git cherry-pick picked &&
 286
 287         sed "s/[a-f0-9]*\.\.\./objid/" foo >actual &&
 288         test_cmp expected actual
 289 '
 290
 291 test_expect_success 'revert also handles conflicts sanely' '
 292         git config --unset merge.conflictstyle &&
 293         pristine_detach initial &&
 294         cat <<-EOF >expected &&
 295         <<<<<<< HEAD
 296         a
 297         =======
 298         b
 299         >>>>>>> parent of objid picked
 300         EOF
 301         {
 302                 git checkout picked -- foo &&
 303                 git ls-files --stage foo &&
 304                 git checkout initial -- foo &&
 305                 git ls-files --stage foo &&
 306                 git checkout base -- foo &&
 307                 git ls-files --stage foo
 308         } >stages &&
 309         sed "
 310                 1 s/ 0  / 1     /
 311                 2 s/ 0  / 2     /
 312                 3 s/ 0  / 3     /
 313         " stages >expected-stages &&
 314         git read-tree -u --reset HEAD &&
 315
 316         head=$(git rev-parse HEAD) &&
 317         test_must_fail git revert picked &&
 318         newhead=$(git rev-parse HEAD) &&
 319         git ls-files --stage --unmerged >actual-stages &&
 320
 321         test "$head" = "$newhead" &&
 322         test_must_fail git update-index --refresh -q &&
 323         test_must_fail git diff-index --exit-code HEAD &&
 324         test_cmp expected-stages actual-stages &&
 325         sed "s/[a-f0-9]*\.\.\./objid/" foo >actual &&
 326         test_cmp expected actual
 327 '
 328
 329 test_expect_success 'failed revert sets REVERT_HEAD' '
 330         pristine_detach initial &&
 331         test_must_fail git revert picked &&
 332         test_cmp_rev picked REVERT_HEAD
 333 '
 334
 335 test_expect_success 'successful revert does not set REVERT_HEAD' '
 336         pristine_detach base &&
 337         git revert base &&
 338         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
 339         test_must_fail git rev-parse --verify REVERT_HEAD
 340 '
 341
 342 test_expect_success 'revert --no-commit sets REVERT_HEAD' '
 343         pristine_detach base &&
 344         git revert --no-commit base &&
 345         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
 346         test_cmp_rev base REVERT_HEAD
 347 '
 348
 349 test_expect_success 'revert w/dirty tree does not set REVERT_HEAD' '
 350         pristine_detach base &&
 351         echo foo >foo &&
 352         test_must_fail git revert base &&
 353         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
 354         test_must_fail git rev-parse --verify REVERT_HEAD
 355 '
 356
 357 test_expect_success 'GIT_CHERRY_PICK_HELP does not suppress REVERT_HEAD' '
 358         pristine_detach initial &&
 359         (
 360                 GIT_CHERRY_PICK_HELP="and then do something else" &&
 361                 GIT_REVERT_HELP="and then do something else, again" &&
 362                 export GIT_CHERRY_PICK_HELP GIT_REVERT_HELP &&
 363                 test_must_fail git revert picked
 364         ) &&
 365         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
 366         test_cmp_rev picked REVERT_HEAD
 367 '
 368
 369 test_expect_success 'git reset clears REVERT_HEAD' '
 370         pristine_detach initial &&
 371         test_must_fail git revert picked &&
 372         git reset &&
 373         test_must_fail git rev-parse --verify REVERT_HEAD
 374 '
 375
 376 test_expect_success 'failed commit does not clear REVERT_HEAD' '
 377         pristine_detach initial &&
 378         test_must_fail git revert picked &&
 379         test_must_fail git commit &&
 380         test_cmp_rev picked REVERT_HEAD
 381 '
 382
 383 test_expect_success 'successful final commit clears revert state' '
 384        pristine_detach picked-signed &&
 385
 386        test_must_fail git revert picked-signed base &&
 387        echo resolved >foo &&
 388        test_path_is_file .git/sequencer/todo &&
 389        git commit -a &&
 390        test_must_fail test_path_exists .git/sequencer
 391 '
 392
 393 test_expect_success 'reset after final pick clears revert state' '
 394        pristine_detach picked-signed &&
 395
 396        test_must_fail git revert picked-signed base &&
 397        echo resolved >foo &&
 398        test_path_is_file .git/sequencer/todo &&
 399        git reset &&
 400        test_must_fail test_path_exists .git/sequencer
 401 '
 402
 403 test_expect_success 'revert conflict, diff3 -m style' '
 404         pristine_detach initial &&
 405         git config merge.conflictstyle diff3 &&
 406         cat <<-EOF >expected &&
 407         <<<<<<< HEAD
 408         a
 409         ||||||| objid picked
 410         c
 411         =======
 412         b
 413         >>>>>>> parent of objid picked
 414         EOF
 415
 416         test_must_fail git revert picked &&
 417
 418         sed "s/[a-f0-9]*\.\.\./objid/" foo >actual &&
 419         test_cmp expected actual
 420 '
 421
 422 test_expect_success \
 423         'revert conflict, ensure commit.cleanup = scissors places scissors line properly' '
 424         pristine_detach initial &&
 425         git config commit.cleanup scissors &&
 426         cat >expected <<-EOF &&
 427                 Revert "picked"
 428
 429                 This reverts commit OBJID.
 430
 431                 # ------------------------ >8 ------------------------
 432                 # Do not modify or remove the line above.
 433                 # Everything below it will be ignored.
 434                 #
 435                 # Conflicts:
 436                 #       foo
 437                 EOF
 438
 439         test_must_fail git revert picked &&
 440
 441         sed "s/$OID_REGEX/OBJID/" .git/MERGE_MSG >actual &&
 442         test_i18ncmp expected actual
 443 '
 444
 445 test_expect_success \
 446         'revert conflict, ensure cleanup=scissors places scissors line properly' '
 447         pristine_detach initial &&
 448         git config --unset commit.cleanup &&
 449         cat >expected <<-EOF &&
 450                 Revert "picked"
 451
 452                 This reverts commit OBJID.
 453
 454                 # ------------------------ >8 ------------------------
 455                 # Do not modify or remove the line above.
 456                 # Everything below it will be ignored.
 457                 #
 458                 # Conflicts:
 459                 #       foo
 460                 EOF
 461
 462         test_must_fail git revert --cleanup=scissors picked &&
 463
 464         sed "s/$OID_REGEX/OBJID/" .git/MERGE_MSG >actual &&
 465         test_i18ncmp expected actual
 466 '
 467
 468 test_expect_success 'failed cherry-pick does not forget -s' '
 469         pristine_detach initial &&
 470         test_must_fail git cherry-pick -s picked &&
 471         test_i18ngrep -e "Signed-off-by" .git/MERGE_MSG
 472 '
 473
 474 test_expect_success 'commit after failed cherry-pick does not add duplicated -s' '
 475         pristine_detach initial &&
 476         test_must_fail git cherry-pick -s picked-signed &&
 477         git commit -a -s &&
 478         test $(git show -s >tmp && grep -c "Signed-off-by" tmp && rm tmp) = 1
 479 '
 480
 481 test_expect_success 'commit after failed cherry-pick adds -s at the right place' '
 482         pristine_detach initial &&
 483         test_must_fail git cherry-pick picked &&
 484
 485         git commit -a -s &&
 486
 487         # Do S-o-b and Conflicts appear in the right order?
 488         cat <<-\EOF >expect &&
 489         Signed-off-by: C O Mitter <committer@example.com>
 490         # Conflicts:
 491         EOF
 492         grep -e "^# Conflicts:" -e '^Signed-off-by' .git/COMMIT_EDITMSG >actual &&
 493         test_cmp expect actual &&
 494
 495         cat <<-\EOF >expected &&
 496         picked
 497
 498         Signed-off-by: C O Mitter <committer@example.com>
 499         EOF
 500
 501         git show -s --pretty=format:%B >actual &&
 502         test_cmp expected actual
 503 '
 504
 505 test_expect_success 'commit --amend -s places the sign-off at the right place' '
 506         pristine_detach initial &&
 507         test_must_fail git cherry-pick picked &&
 508
 509         # emulate old-style conflicts block
 510         mv .git/MERGE_MSG .git/MERGE_MSG+ &&
 511         sed -e "/^# Conflicts:/,\$s/^# *//" .git/MERGE_MSG+ >.git/MERGE_MSG &&
 512
 513         git commit -a &&
 514         git commit --amend -s &&
 515
 516         # Do S-o-b and Conflicts appear in the right order?
 517         cat <<-\EOF >expect &&
 518         Signed-off-by: C O Mitter <committer@example.com>
 519         Conflicts:
 520         EOF
 521         grep -e "^Conflicts:" -e '^Signed-off-by' .git/COMMIT_EDITMSG >actual &&
 522         test_cmp expect actual
 523 '
 524
 525 test_expect_success 'cherry-pick preserves sparse-checkout' '
 526         pristine_detach initial &&
 527         test_config core.sparseCheckout true &&
 528         test_when_finished "
 529                 echo \"/*\" >.git/info/sparse-checkout
 530                 git read-tree --reset -u HEAD
 531                 rm .git/info/sparse-checkout" &&
 532         echo /unrelated >.git/info/sparse-checkout &&
 533         git read-tree --reset -u HEAD &&
 534         test_must_fail git cherry-pick -Xours picked>actual &&
 535         test_i18ngrep ! "Changes not staged for commit:" actual
 536 '
 537
 538 test_expect_success 'cherry-pick --continue remembers --keep-redundant-commits' '
 539         test_when_finished "git cherry-pick --abort || :" &&
 540         pristine_detach initial &&
 541         test_must_fail git cherry-pick --keep-redundant-commits picked redundant &&
 542         echo c >foo &&
 543         git add foo &&
 544         git cherry-pick --continue
 545 '
 546
 547 test_expect_success 'cherry-pick --continue remembers --allow-empty and --allow-empty-message' '
 548         test_when_finished "git cherry-pick --abort || :" &&
 549         pristine_detach initial &&
 550         test_must_fail git cherry-pick --allow-empty --allow-empty-message \
 551                                        picked empty &&
 552         echo c >foo &&
 553         git add foo &&
 554         git cherry-pick --continue
 555 '
 556
 557 test_done