t/t7201-co.sh

   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_i18ngrep 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_i18ngrep "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 with --merge' '
 501         setup_conflicting_index &&
 502         echo "none of the above" >sample &&
 503         echo ourside >expect &&
 504         cat sample >fild &&
 505         cat sample >file &&
 506         cat sample >filf &&
 507         git checkout -m -- fild file filf &&
 508         (
 509                 echo "<<<<<<< ours" &&
 510                 echo ourside &&
 511                 echo "=======" &&
 512                 echo theirside &&
 513                 echo ">>>>>>> theirs"
 514         ) >merged &&
 515         test_cmp expect fild &&
 516         test_cmp expect filf &&
 517         test_cmp merged file
 518 '
 519
 520 test_expect_success 'checkout with --merge, in diff3 -m style' '
 521         git config merge.conflictstyle diff3 &&
 522         setup_conflicting_index &&
 523         echo "none of the above" >sample &&
 524         echo ourside >expect &&
 525         cat sample >fild &&
 526         cat sample >file &&
 527         cat sample >filf &&
 528         git checkout -m -- fild file filf &&
 529         (
 530                 echo "<<<<<<< ours" &&
 531                 echo ourside &&
 532                 echo "||||||| base" &&
 533                 echo original &&
 534                 echo "=======" &&
 535                 echo theirside &&
 536                 echo ">>>>>>> theirs"
 537         ) >merged &&
 538         test_cmp expect fild &&
 539         test_cmp expect filf &&
 540         test_cmp merged file
 541 '
 542
 543 test_expect_success 'checkout --conflict=merge, overriding config' '
 544         git config merge.conflictstyle diff3 &&
 545         setup_conflicting_index &&
 546         echo "none of the above" >sample &&
 547         echo ourside >expect &&
 548         cat sample >fild &&
 549         cat sample >file &&
 550         cat sample >filf &&
 551         git checkout --conflict=merge -- fild file filf &&
 552         (
 553                 echo "<<<<<<< ours" &&
 554                 echo ourside &&
 555                 echo "=======" &&
 556                 echo theirside &&
 557                 echo ">>>>>>> theirs"
 558         ) >merged &&
 559         test_cmp expect fild &&
 560         test_cmp expect filf &&
 561         test_cmp merged file
 562 '
 563
 564 test_expect_success 'checkout --conflict=diff3' '
 565         test_unconfig merge.conflictstyle &&
 566         setup_conflicting_index &&
 567         echo "none of the above" >sample &&
 568         echo ourside >expect &&
 569         cat sample >fild &&
 570         cat sample >file &&
 571         cat sample >filf &&
 572         git checkout --conflict=diff3 -- fild file filf &&
 573         (
 574                 echo "<<<<<<< ours" &&
 575                 echo ourside &&
 576                 echo "||||||| base" &&
 577                 echo original &&
 578                 echo "=======" &&
 579                 echo theirside &&
 580                 echo ">>>>>>> theirs"
 581         ) >merged &&
 582         test_cmp expect fild &&
 583         test_cmp expect filf &&
 584         test_cmp merged file
 585 '
 586
 587 test_expect_success 'failing checkout -b should not break working tree' '
 588         git clean -fd &&  # Remove untracked files in the way
 589         git reset --hard main &&
 590         git symbolic-ref HEAD refs/heads/main &&
 591         test_must_fail git checkout -b renamer side^ &&
 592         test $(git symbolic-ref HEAD) = refs/heads/main &&
 593         git diff --exit-code &&
 594         git diff --cached --exit-code
 595 '
 596
 597 test_expect_success 'switch out of non-branch' '
 598         git reset --hard main &&
 599         git checkout main^0 &&
 600         echo modified >one &&
 601         test_must_fail git checkout renamer 2>error.log &&
 602         ! grep "^Previous HEAD" error.log
 603 '
 604
 605 (
 606  echo "#!$SHELL_PATH"
 607  cat <<\EOF
 608 O=$1 A=$2 B=$3
 609 cat "$A" >.tmp
 610 exec >"$A"
 611 echo '<<<<<<< filfre-theirs'
 612 cat "$B"
 613 echo '||||||| filfre-common'
 614 cat "$O"
 615 echo '======='
 616 cat ".tmp"
 617 echo '>>>>>>> filfre-ours'
 618 rm -f .tmp
 619 exit 1
 620 EOF
 621 ) >filfre.sh
 622 chmod +x filfre.sh
 623
 624 test_expect_success 'custom merge driver with checkout -m' '
 625         git reset --hard &&
 626
 627         git config merge.filfre.driver "./filfre.sh %O %A %B" &&
 628         git config merge.filfre.name "Feel-free merge driver" &&
 629         git config merge.filfre.recursive binary &&
 630         echo "arm merge=filfre" >.gitattributes &&
 631
 632         git checkout -b left &&
 633         echo neutral >arm &&
 634         git add arm .gitattributes &&
 635         test_tick &&
 636         git commit -m neutral &&
 637         git branch right &&
 638
 639         echo left >arm &&
 640         test_tick &&
 641         git commit -a -m left &&
 642         git checkout right &&
 643
 644         echo right >arm &&
 645         test_tick &&
 646         git commit -a -m right &&
 647
 648         test_must_fail git merge left &&
 649         (
 650                 for t in filfre-common left right
 651                 do
 652                         grep $t arm || exit 1
 653                 done
 654         ) &&
 655
 656         mv arm expect &&
 657         git checkout -m arm &&
 658         test_cmp expect arm
 659 '
 660
 661 test_done