t/t7102-reset.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2007 Carlos Rica
   4 #
   5
   6 test_description='git reset
   7
   8 Documented tests for git reset'
   9
  10 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
  11 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
  12
  13 . ./test-lib.sh
  14
  15 commit_msg () {
  16         # String "modify 2nd file (changed)" partly in German
  17         # (translated with Google Translate),
  18         # encoded in UTF-8, used as a commit log message below.
  19         msg="modify 2nd file (ge\303\244ndert)\n"
  20         if test -n "$1"
  21         then
  22                 printf "$msg" | iconv -f utf-8 -t "$1"
  23         else
  24                 printf "$msg"
  25         fi
  26 }
  27
  28 # Tested non-UTF-8 encoding
  29 test_encoding="ISO8859-1"
  30
  31 test_expect_success 'creating initial files and commits' '
  32         test_tick &&
  33         echo "1st file" >first &&
  34         git add first &&
  35         git commit -m "create 1st file" &&
  36
  37         echo "2nd file" >second &&
  38         git add second &&
  39         git commit -m "create 2nd file" &&
  40
  41         echo "2nd line 1st file" >>first &&
  42         git commit -a -m "modify 1st file" &&
  43         head5p2=$(git rev-parse --verify HEAD) &&
  44         head5p2f=$(git rev-parse --short HEAD:first) &&
  45
  46         git rm first &&
  47         git mv second secondfile &&
  48         git commit -a -m "remove 1st and rename 2nd" &&
  49         head5p1=$(git rev-parse --verify HEAD) &&
  50         head5p1s=$(git rev-parse --short HEAD:secondfile) &&
  51
  52         echo "1st line 2nd file" >secondfile &&
  53         echo "2nd line 2nd file" >>secondfile &&
  54         # "git commit -m" would break MinGW, as Windows refuse to pass
  55         # $test_encoding encoded parameter to git.
  56         commit_msg $test_encoding | git -c "i18n.commitEncoding=$test_encoding" commit -a -F - &&
  57         head5=$(git rev-parse --verify HEAD) &&
  58         head5s=$(git rev-parse --short HEAD:secondfile) &&
  59         head5sl=$(git rev-parse HEAD:secondfile)
  60 '
  61 # git log --pretty=oneline # to see those SHA1 involved
  62
  63 check_changes () {
  64         test "$(git rev-parse HEAD)" = "$1" &&
  65         git diff | test_cmp .diff_expect - &&
  66         git diff --cached | test_cmp .cached_expect - &&
  67         for FILE in *
  68         do
  69                 echo $FILE':'
  70                 cat $FILE || return
  71         done | test_cmp .cat_expect -
  72 }
  73
  74 # no negated form for various type of resets
  75 for opt in soft mixed hard merge keep
  76 do
  77         test_expect_success "no 'git reset --no-$opt'" '
  78                 test_when_finished "rm -f err" &&
  79                 test_must_fail git reset --no-$opt 2>err &&
  80                 grep "error: unknown option .no-$opt." err
  81         '
  82 done
  83
  84 test_expect_success 'reset --hard message' '
  85         hex=$(git log -1 --format="%h") &&
  86         git reset --hard >.actual &&
  87         echo HEAD is now at $hex $(commit_msg) >.expected &&
  88         test_cmp .expected .actual
  89 '
  90
  91 test_expect_success 'reset --hard message (ISO8859-1 logoutputencoding)' '
  92         hex=$(git log -1 --format="%h") &&
  93         git -c "i18n.logOutputEncoding=$test_encoding" reset --hard >.actual &&
  94         echo HEAD is now at $hex $(commit_msg $test_encoding) >.expected &&
  95         test_cmp .expected .actual
  96 '
  97
  98 test_expect_success 'giving a non existing revision should fail' '
  99         >.diff_expect &&
 100         >.cached_expect &&
 101         cat >.cat_expect <<-\EOF &&
 102         secondfile:
 103         1st line 2nd file
 104         2nd line 2nd file
 105         EOF
 106
 107         test_must_fail git reset aaaaaa &&
 108         test_must_fail git reset --mixed aaaaaa &&
 109         test_must_fail git reset --soft aaaaaa &&
 110         test_must_fail git reset --hard aaaaaa &&
 111         check_changes $head5
 112 '
 113
 114 test_expect_success 'reset --soft with unmerged index should fail' '
 115         touch .git/MERGE_HEAD &&
 116         echo "100644 $head5sl 1 un" |
 117                 git update-index --index-info &&
 118         test_must_fail git reset --soft HEAD &&
 119         rm .git/MERGE_HEAD &&
 120         git rm --cached -- un
 121 '
 122
 123 test_expect_success 'giving paths with options different than --mixed should fail' '
 124         test_must_fail git reset --soft -- first &&
 125         test_must_fail git reset --hard -- first &&
 126         test_must_fail git reset --soft HEAD^ -- first &&
 127         test_must_fail git reset --hard HEAD^ -- first &&
 128         check_changes $head5
 129 '
 130
 131 test_expect_success 'giving unrecognized options should fail' '
 132         test_must_fail git reset --other &&
 133         test_must_fail git reset -o &&
 134         test_must_fail git reset --mixed --other &&
 135         test_must_fail git reset --mixed -o &&
 136         test_must_fail git reset --soft --other &&
 137         test_must_fail git reset --soft -o &&
 138         test_must_fail git reset --hard --other &&
 139         test_must_fail git reset --hard -o &&
 140         check_changes $head5
 141 '
 142
 143 test_expect_success 'trying to do reset --soft with pending merge should fail' '
 144         git branch branch1 &&
 145         git branch branch2 &&
 146
 147         git checkout branch1 &&
 148         echo "3rd line in branch1" >>secondfile &&
 149         git commit -a -m "change in branch1" &&
 150
 151         git checkout branch2 &&
 152         echo "3rd line in branch2" >>secondfile &&
 153         git commit -a -m "change in branch2" &&
 154
 155         test_must_fail git merge branch1 &&
 156         test_must_fail git reset --soft &&
 157
 158         printf "1st line 2nd file\n2nd line 2nd file\n3rd line" >secondfile &&
 159         git commit -a -m "the change in branch2" &&
 160
 161         git checkout main &&
 162         git branch -D branch1 branch2 &&
 163         check_changes $head5
 164 '
 165
 166 test_expect_success 'trying to do reset --soft with pending checkout merge should fail' '
 167         git branch branch3 &&
 168         git branch branch4 &&
 169
 170         git checkout branch3 &&
 171         echo "3rd line in branch3" >>secondfile &&
 172         git commit -a -m "line in branch3" &&
 173
 174         git checkout branch4 &&
 175         echo "3rd line in branch4" >>secondfile &&
 176
 177         git checkout -m branch3 &&
 178         test_must_fail git reset --soft &&
 179
 180         printf "1st line 2nd file\n2nd line 2nd file\n3rd line" >secondfile &&
 181         git commit -a -m "the line in branch3" &&
 182
 183         git checkout main &&
 184         git branch -D branch3 branch4 &&
 185         check_changes $head5
 186 '
 187
 188 test_expect_success 'resetting to HEAD with no changes should succeed and do nothing' '
 189         git reset --hard &&
 190                 check_changes $head5 &&
 191         git reset --hard HEAD &&
 192                 check_changes $head5 &&
 193         git reset --soft &&
 194                 check_changes $head5 &&
 195         git reset --soft HEAD &&
 196                 check_changes $head5 &&
 197         git reset --mixed &&
 198                 check_changes $head5 &&
 199         git reset --mixed HEAD &&
 200                 check_changes $head5 &&
 201         git reset &&
 202                 check_changes $head5 &&
 203         git reset HEAD &&
 204                 check_changes $head5
 205 '
 206
 207 test_expect_success '--soft reset only should show changes in diff --cached' '
 208         >.diff_expect &&
 209         cat >.cached_expect <<-EOF &&
 210         diff --git a/secondfile b/secondfile
 211         index $head5p1s..$head5s 100644
 212         --- a/secondfile
 213         +++ b/secondfile
 214         @@ -1 +1,2 @@
 215         -2nd file
 216         +1st line 2nd file
 217         +2nd line 2nd file
 218         EOF
 219         cat >.cat_expect <<-\EOF &&
 220         secondfile:
 221         1st line 2nd file
 222         2nd line 2nd file
 223         EOF
 224         git reset --soft HEAD^ &&
 225         check_changes $head5p1 &&
 226         test "$(git rev-parse ORIG_HEAD)" = \
 227                         $head5
 228 '
 229
 230 test_expect_success 'changing files and redo the last commit should succeed' '
 231         >.diff_expect &&
 232         >.cached_expect &&
 233         cat >.cat_expect <<-\EOF &&
 234         secondfile:
 235         1st line 2nd file
 236         2nd line 2nd file
 237         3rd line 2nd file
 238         EOF
 239         echo "3rd line 2nd file" >>secondfile &&
 240         git commit -a -C ORIG_HEAD &&
 241         head4=$(git rev-parse --verify HEAD) &&
 242         check_changes $head4 &&
 243         test "$(git rev-parse ORIG_HEAD)" = \
 244                         $head5
 245 '
 246
 247 test_expect_success '--hard reset should change the files and undo commits permanently' '
 248         >.diff_expect &&
 249         >.cached_expect &&
 250         cat >.cat_expect <<-\EOF &&
 251         first:
 252         1st file
 253         2nd line 1st file
 254         second:
 255         2nd file
 256         EOF
 257         git reset --hard HEAD~2 &&
 258         check_changes $head5p2 &&
 259         test "$(git rev-parse ORIG_HEAD)" = \
 260                         $head4
 261 '
 262
 263 test_expect_success 'redoing changes adding them without commit them should succeed' '
 264         >.diff_expect &&
 265         cat >.cached_expect <<-EOF &&
 266         diff --git a/first b/first
 267         deleted file mode 100644
 268         index $head5p2f..0000000
 269         --- a/first
 270         +++ /dev/null
 271         @@ -1,2 +0,0 @@
 272         -1st file
 273         -2nd line 1st file
 274         diff --git a/second b/second
 275         deleted file mode 100644
 276         index $head5p1s..0000000
 277         --- a/second
 278         +++ /dev/null
 279         @@ -1 +0,0 @@
 280         -2nd file
 281         diff --git a/secondfile b/secondfile
 282         new file mode 100644
 283         index 0000000..$head5s
 284         --- /dev/null
 285         +++ b/secondfile
 286         @@ -0,0 +1,2 @@
 287         +1st line 2nd file
 288         +2nd line 2nd file
 289         EOF
 290         cat >.cat_expect <<-\EOF &&
 291         secondfile:
 292         1st line 2nd file
 293         2nd line 2nd file
 294         EOF
 295         git rm first &&
 296         git mv second secondfile &&
 297
 298         echo "1st line 2nd file" >secondfile &&
 299         echo "2nd line 2nd file" >>secondfile &&
 300         git add secondfile &&
 301         check_changes $head5p2
 302 '
 303
 304 test_expect_success '--mixed reset to HEAD should unadd the files' '
 305         cat >.diff_expect <<-EOF &&
 306         diff --git a/first b/first
 307         deleted file mode 100644
 308         index $head5p2f..0000000
 309         --- a/first
 310         +++ /dev/null
 311         @@ -1,2 +0,0 @@
 312         -1st file
 313         -2nd line 1st file
 314         diff --git a/second b/second
 315         deleted file mode 100644
 316         index $head5p1s..0000000
 317         --- a/second
 318         +++ /dev/null
 319         @@ -1 +0,0 @@
 320         -2nd file
 321         EOF
 322         >.cached_expect &&
 323         cat >.cat_expect <<-\EOF &&
 324         secondfile:
 325         1st line 2nd file
 326         2nd line 2nd file
 327         EOF
 328         git reset &&
 329         check_changes $head5p2 &&
 330         test "$(git rev-parse ORIG_HEAD)" = $head5p2
 331 '
 332
 333 test_expect_success 'redoing the last two commits should succeed' '
 334         >.diff_expect &&
 335         >.cached_expect &&
 336         cat >.cat_expect <<-\EOF &&
 337         secondfile:
 338         1st line 2nd file
 339         2nd line 2nd file
 340         EOF
 341         git add secondfile &&
 342         git reset --hard $head5p2 &&
 343         git rm first &&
 344         git mv second secondfile &&
 345         git commit -a -m "remove 1st and rename 2nd" &&
 346
 347         echo "1st line 2nd file" >secondfile &&
 348         echo "2nd line 2nd file" >>secondfile &&
 349         # "git commit -m" would break MinGW, as Windows refuse to pass
 350         # $test_encoding encoded parameter to git.
 351         commit_msg $test_encoding | git -c "i18n.commitEncoding=$test_encoding" commit -a -F - &&
 352         check_changes $head5
 353 '
 354
 355 test_expect_success '--hard reset to HEAD should clear a failed merge' '
 356         >.diff_expect &&
 357         >.cached_expect &&
 358         cat >.cat_expect <<-\EOF &&
 359         secondfile:
 360         1st line 2nd file
 361         2nd line 2nd file
 362         3rd line in branch2
 363         EOF
 364         git branch branch1 &&
 365         git branch branch2 &&
 366
 367         git checkout branch1 &&
 368         echo "3rd line in branch1" >>secondfile &&
 369         git commit -a -m "change in branch1" &&
 370
 371         git checkout branch2 &&
 372         echo "3rd line in branch2" >>secondfile &&
 373         git commit -a -m "change in branch2" &&
 374         head3=$(git rev-parse --verify HEAD) &&
 375
 376         test_must_fail git pull . branch1 &&
 377         git reset --hard &&
 378         check_changes $head3
 379 '
 380
 381 test_expect_success '--hard reset to ORIG_HEAD should clear a fast-forward merge' '
 382         >.diff_expect &&
 383         >.cached_expect &&
 384         cat >.cat_expect <<-\EOF &&
 385         secondfile:
 386         1st line 2nd file
 387         2nd line 2nd file
 388         EOF
 389         git reset --hard HEAD^ &&
 390         check_changes $head5 &&
 391
 392         git pull . branch1 &&
 393         git reset --hard ORIG_HEAD &&
 394         check_changes $head5 &&
 395
 396         git checkout main &&
 397         git branch -D branch1 branch2 &&
 398         check_changes $head5
 399 '
 400
 401 test_expect_success 'test --mixed <paths>' '
 402         echo 1 >file1 &&
 403         echo 2 >file2 &&
 404         git add file1 file2 &&
 405         test_tick &&
 406         git commit -m files &&
 407         before1=$(git rev-parse --short HEAD:file1) &&
 408         before2=$(git rev-parse --short HEAD:file2) &&
 409         git rm file2 &&
 410         echo 3 >file3 &&
 411         echo 4 >file4 &&
 412         echo 5 >file1 &&
 413         after1=$(git rev-parse --short $(git hash-object file1)) &&
 414         after4=$(git rev-parse --short $(git hash-object file4)) &&
 415         git add file1 file3 file4 &&
 416         git reset HEAD -- file1 file2 file3 &&
 417         test_must_fail git diff --quiet &&
 418         git diff >output &&
 419
 420         cat >expect <<-EOF &&
 421         diff --git a/file1 b/file1
 422         index $before1..$after1 100644
 423         --- a/file1
 424         +++ b/file1
 425         @@ -1 +1 @@
 426         -1
 427         +5
 428         diff --git a/file2 b/file2
 429         deleted file mode 100644
 430         index $before2..0000000
 431         --- a/file2
 432         +++ /dev/null
 433         @@ -1 +0,0 @@
 434         -2
 435         EOF
 436
 437         test_cmp expect output &&
 438         git diff --cached >output &&
 439
 440         cat >cached_expect <<-EOF &&
 441         diff --git a/file4 b/file4
 442         new file mode 100644
 443         index 0000000..$after4
 444         --- /dev/null
 445         +++ b/file4
 446         @@ -0,0 +1 @@
 447         +4
 448         EOF
 449
 450         test_cmp cached_expect output
 451 '
 452
 453 test_expect_success 'test resetting the index at give paths' '
 454         mkdir sub &&
 455         >sub/file1 &&
 456         >sub/file2 &&
 457         git update-index --add sub/file1 sub/file2 &&
 458         T=$(git write-tree) &&
 459         git reset HEAD sub/file2 &&
 460         test_must_fail git diff --quiet &&
 461         U=$(git write-tree) &&
 462         echo "$T" &&
 463         echo "$U" &&
 464         test_must_fail git diff-index --cached --exit-code "$T" &&
 465         test "$T" != "$U"
 466 '
 467
 468 test_expect_success 'resetting an unmodified path is a no-op' '
 469         git reset --hard &&
 470         git reset -- file1 &&
 471         git diff-files --exit-code &&
 472         git diff-index --cached --exit-code HEAD
 473 '
 474
 475 test_reset_refreshes_index () {
 476
 477         # To test whether the index is refreshed in `git reset --mixed` with
 478         # the given options, create a scenario where we clearly see different
 479         # results depending on whether the refresh occurred or not.
 480
 481         # Step 0: start with a clean index
 482         git reset --hard HEAD &&
 483
 484         # Step 1: remove file2, but only in the index (no change to worktree)
 485         git rm --cached file2 &&
 486
 487         # Step 2: reset index & leave worktree unchanged from HEAD
 488         git $1 reset $2 --mixed HEAD &&
 489
 490         # Step 3: verify whether the index is refreshed by checking whether
 491         # file2 still has staged changes in the index differing from HEAD (if
 492         # the refresh occurred, there should be no such changes)
 493         git diff-files >output.log &&
 494         test_must_be_empty output.log
 495 }
 496
 497 test_expect_success '--mixed refreshes the index' '
 498         # Verify default behavior (without --[no-]refresh or reset.refresh)
 499         test_reset_refreshes_index &&
 500
 501         # With --quiet
 502         test_reset_refreshes_index "" --quiet
 503 '
 504
 505 test_expect_success '--mixed --[no-]refresh sets refresh behavior' '
 506         # Verify that --[no-]refresh controls index refresh
 507         test_reset_refreshes_index "" --refresh &&
 508         ! test_reset_refreshes_index "" --no-refresh
 509 '
 510
 511 test_expect_success '--mixed preserves skip-worktree' '
 512         echo 123 >>file2 &&
 513         git add file2 &&
 514         git update-index --skip-worktree file2 &&
 515         git reset --mixed HEAD >output &&
 516         test_must_be_empty output &&
 517
 518         cat >expect <<-\EOF &&
 519         Unstaged changes after reset:
 520         M       file2
 521         EOF
 522         git update-index --no-skip-worktree file2 &&
 523         git add file2 &&
 524         git reset --mixed HEAD >output &&
 525         test_cmp expect output
 526 '
 527
 528 test_expect_success 'resetting specific path that is unmerged' '
 529         git rm --cached file2 &&
 530         F1=$(git rev-parse HEAD:file1) &&
 531         F2=$(git rev-parse HEAD:file2) &&
 532         F3=$(git rev-parse HEAD:secondfile) &&
 533         {
 534                 echo "100644 $F1 1      file2" &&
 535                 echo "100644 $F2 2      file2" &&
 536                 echo "100644 $F3 3      file2"
 537         } | git update-index --index-info &&
 538         git ls-files -u &&
 539         git reset HEAD file2 &&
 540         test_must_fail git diff --quiet &&
 541         git diff-index --exit-code --cached HEAD
 542 '
 543
 544 test_expect_success 'disambiguation (1)' '
 545         git reset --hard &&
 546         >secondfile &&
 547         git add secondfile &&
 548         git reset secondfile &&
 549         test_must_fail git diff --quiet -- secondfile &&
 550         test -z "$(git diff --cached --name-only)" &&
 551         test -f secondfile &&
 552         test_must_be_empty secondfile
 553 '
 554
 555 test_expect_success 'disambiguation (2)' '
 556         git reset --hard &&
 557         >secondfile &&
 558         git add secondfile &&
 559         rm -f secondfile &&
 560         test_must_fail git reset secondfile &&
 561         test -n "$(git diff --cached --name-only -- secondfile)" &&
 562         test ! -f secondfile
 563 '
 564
 565 test_expect_success 'disambiguation (3)' '
 566         git reset --hard &&
 567         >secondfile &&
 568         git add secondfile &&
 569         rm -f secondfile &&
 570         git reset HEAD secondfile &&
 571         test_must_fail git diff --quiet &&
 572         test -z "$(git diff --cached --name-only)" &&
 573         test ! -f secondfile
 574 '
 575
 576 test_expect_success 'disambiguation (4)' '
 577         git reset --hard &&
 578         >secondfile &&
 579         git add secondfile &&
 580         rm -f secondfile &&
 581         git reset -- secondfile &&
 582         test_must_fail git diff --quiet &&
 583         test -z "$(git diff --cached --name-only)" &&
 584         test ! -f secondfile
 585 '
 586
 587 test_expect_success 'reset with paths accepts tree' '
 588         # for simpler tests, drop last commit containing added files
 589         git reset --hard HEAD^ &&
 590         git reset HEAD^^{tree} -- . &&
 591         git diff --cached HEAD^ --exit-code &&
 592         git diff HEAD --exit-code
 593 '
 594
 595 test_expect_success 'reset -N keeps removed files as intent-to-add' '
 596         echo new-file >new-file &&
 597         git add new-file &&
 598         git reset -N HEAD &&
 599
 600         tree=$(git write-tree) &&
 601         git ls-tree $tree new-file >actual &&
 602         test_must_be_empty actual &&
 603
 604         git diff --name-only >actual &&
 605         echo new-file >expect &&
 606         test_cmp expect actual
 607 '
 608
 609 test_expect_success 'reset --mixed sets up work tree' '
 610         git init mixed_worktree &&
 611         (
 612                 cd mixed_worktree &&
 613                 test_commit dummy
 614         ) &&
 615         git --git-dir=mixed_worktree/.git --work-tree=mixed_worktree reset >actual &&
 616         test_must_be_empty actual
 617 '
 618
 619 test_done