t/t6120-describe.sh

   1 #!/bin/sh
   2
   3 test_description='test describe'
   4
   5 #  o---o-----o----o----o-------o----x
   6 #       \   D,R   e           /
   7 #        \---o-------------o-'
   8 #         \  B            /
   9 #          `-o----o----o-'
  10 #                 A    c
  11 #
  12 # First parent of a merge commit is on the same line, second parent below.
  13
  14 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
  15 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
  16
  17 . ./test-lib.sh
  18
  19 check_describe () {
  20         indir= &&
  21         while test $# != 0
  22         do
  23                 case "$1" in
  24                 -C)
  25                         indir="$2"
  26                         shift
  27                         ;;
  28                 *)
  29                         break
  30                         ;;
  31                 esac
  32                 shift
  33         done &&
  34         indir=${indir:+"$indir"/} &&
  35         expect="$1"
  36         shift
  37         describe_opts="$@"
  38         test_expect_success "describe $describe_opts" '
  39                 git ${indir:+ -C "$indir"} describe $describe_opts >raw &&
  40                 sed -e "s/-g[0-9a-f]*\$/-gHASH/" <raw >actual &&
  41                 echo "$expect" >expect &&
  42                 test_cmp expect actual
  43         '
  44 }
  45
  46 test_expect_success setup '
  47         test_commit initial file one &&
  48         test_commit second file two &&
  49         test_commit third file three &&
  50         test_commit --annotate A file A &&
  51         test_commit c file c &&
  52
  53         git reset --hard second &&
  54         test_commit --annotate B side B &&
  55
  56         test_tick &&
  57         git merge -m Merged c &&
  58         merged=$(git rev-parse HEAD) &&
  59
  60         git reset --hard second &&
  61         test_commit --no-tag D another D &&
  62
  63         test_tick &&
  64         git tag -a -m R R &&
  65
  66         test_commit e another DD &&
  67         test_commit --no-tag "yet another" another DDD &&
  68
  69         test_tick &&
  70         git merge -m Merged $merged &&
  71
  72         test_commit --no-tag x file
  73 '
  74
  75 check_describe A-8-gHASH HEAD
  76 check_describe A-7-gHASH HEAD^
  77 check_describe R-2-gHASH HEAD^^
  78 check_describe A-3-gHASH HEAD^^2
  79 check_describe B HEAD^^2^
  80 check_describe R-1-gHASH HEAD^^^
  81
  82 check_describe c-7-gHASH --tags HEAD
  83 check_describe c-6-gHASH --tags HEAD^
  84 check_describe e-1-gHASH --tags HEAD^^
  85 check_describe c-2-gHASH --tags HEAD^^2
  86 check_describe B --tags HEAD^^2^
  87 check_describe e --tags HEAD^^^
  88
  89 check_describe heads/main --all HEAD
  90 check_describe tags/c-6-gHASH --all HEAD^
  91 check_describe tags/e --all HEAD^^^
  92
  93 check_describe B-0-gHASH --long HEAD^^2^
  94 check_describe A-3-gHASH --long HEAD^^2
  95
  96 check_describe c-7-gHASH --tags
  97 check_describe e-3-gHASH --first-parent --tags
  98
  99 test_expect_success 'describe --contains defaults to HEAD without commit-ish' '
 100         echo "A^0" >expect &&
 101         git checkout A &&
 102         test_when_finished "git checkout -" &&
 103         git describe --contains >actual &&
 104         test_cmp expect actual
 105 '
 106
 107 check_describe tags/A --all A^0
 108
 109 test_expect_success 'renaming tag A to Q locally produces a warning' "
 110         git update-ref refs/tags/Q $(git rev-parse refs/tags/A) &&
 111         git update-ref -d refs/tags/A &&
 112         git describe HEAD 2>err >out &&
 113         cat >expected <<-\EOF &&
 114         warning: tag 'Q' is externally known as 'A'
 115         EOF
 116         test_cmp expected err &&
 117         grep -E '^A-8-g[0-9a-f]+$' out
 118 "
 119
 120 test_expect_success 'misnamed annotated tag forces long output' '
 121         description=$(git describe --no-long Q^0) &&
 122         expr "$description" : "A-0-g[0-9a-f]*$" &&
 123         git rev-parse --verify "$description" >actual &&
 124         git rev-parse --verify Q^0 >expect &&
 125         test_cmp expect actual
 126 '
 127
 128 test_expect_success 'abbrev=0 will not break misplaced tag (1)' '
 129         description=$(git describe --abbrev=0 Q^0) &&
 130         expr "$description" : "A-0-g[0-9a-f]*$"
 131 '
 132
 133 test_expect_success 'abbrev=0 will not break misplaced tag (2)' '
 134         description=$(git describe --abbrev=0 c^0) &&
 135         expr "$description" : "A-1-g[0-9a-f]*$"
 136 '
 137
 138 test_expect_success 'rename tag Q back to A' '
 139         git update-ref refs/tags/A $(git rev-parse refs/tags/Q) &&
 140         git update-ref -d refs/tags/Q
 141 '
 142
 143 test_expect_success 'pack tag refs' 'git pack-refs'
 144 check_describe A-8-gHASH HEAD
 145
 146 test_expect_success 'describe works from outside repo using --git-dir' '
 147         git clone --bare "$TRASH_DIRECTORY" "$TRASH_DIRECTORY/bare" &&
 148         git --git-dir "$TRASH_DIRECTORY/bare" describe >out &&
 149         grep -E "^A-8-g[0-9a-f]+$" out
 150 '
 151
 152 check_describe "A-8-gHASH" --dirty
 153
 154 test_expect_success 'describe --dirty with --work-tree' '
 155         (
 156                 cd "$TEST_DIRECTORY" &&
 157                 git --git-dir "$TRASH_DIRECTORY/.git" --work-tree "$TRASH_DIRECTORY" describe --dirty >"$TRASH_DIRECTORY/out"
 158         ) &&
 159         grep -E "^A-8-g[0-9a-f]+$" out
 160 '
 161
 162 test_expect_success 'set-up dirty work tree' '
 163         echo >>file
 164 '
 165
 166 test_expect_success 'describe --dirty with --work-tree (dirty)' '
 167         git describe --dirty >expected &&
 168         (
 169                 cd "$TEST_DIRECTORY" &&
 170                 git --git-dir "$TRASH_DIRECTORY/.git" --work-tree "$TRASH_DIRECTORY" describe --dirty >"$TRASH_DIRECTORY/out"
 171         ) &&
 172         grep -E "^A-8-g[0-9a-f]+-dirty$" out &&
 173         test_cmp expected out
 174 '
 175
 176 test_expect_success 'describe --dirty=.mod with --work-tree (dirty)' '
 177         git describe --dirty=.mod >expected &&
 178         (
 179                 cd "$TEST_DIRECTORY" &&
 180                 git --git-dir "$TRASH_DIRECTORY/.git" --work-tree "$TRASH_DIRECTORY" describe --dirty=.mod >"$TRASH_DIRECTORY/out"
 181         ) &&
 182         grep -E "^A-8-g[0-9a-f]+.mod$" out &&
 183         test_cmp expected out
 184 '
 185
 186 test_expect_success 'describe --dirty HEAD' '
 187         test_must_fail git describe --dirty HEAD
 188 '
 189
 190 test_expect_success 'set-up matching pattern tests' '
 191         git tag -a -m test-annotated test-annotated &&
 192         echo >>file &&
 193         test_tick &&
 194         git commit -a -m "one more" &&
 195         git tag test1-lightweight &&
 196         echo >>file &&
 197         test_tick &&
 198         git commit -a -m "yet another" &&
 199         git tag test2-lightweight &&
 200         echo >>file &&
 201         test_tick &&
 202         git commit -a -m "even more"
 203
 204 '
 205
 206 check_describe "test-annotated-3-gHASH" --match="test-*"
 207
 208 check_describe "test1-lightweight-2-gHASH" --tags --match="test1-*"
 209
 210 check_describe "test2-lightweight-1-gHASH" --tags --match="test2-*"
 211
 212 check_describe "test2-lightweight-0-gHASH" --long --tags --match="test2-*" HEAD^
 213
 214 check_describe "test2-lightweight-0-gHASH" --long --tags --match="test1-*" --match="test2-*" HEAD^
 215
 216 check_describe "test2-lightweight-0-gHASH" --long --tags --match="test1-*" --no-match --match="test2-*" HEAD^
 217
 218 check_describe "test1-lightweight-2-gHASH" --long --tags --match="test1-*" --match="test3-*" HEAD
 219
 220 check_describe "test1-lightweight-2-gHASH" --long --tags --match="test3-*" --match="test1-*" HEAD
 221
 222 test_expect_success 'set-up branches' '
 223         git branch branch_A A &&
 224         git branch branch_C c &&
 225         git update-ref refs/remotes/origin/remote_branch_A "A^{commit}" &&
 226         git update-ref refs/remotes/origin/remote_branch_C "c^{commit}" &&
 227         git update-ref refs/original/original_branch_A test-annotated~2
 228 '
 229
 230 check_describe "heads/branch_A-11-gHASH" --all --match="branch_*" --exclude="branch_C" HEAD
 231
 232 check_describe "remotes/origin/remote_branch_A-11-gHASH" --all --match="origin/remote_branch_*" --exclude="origin/remote_branch_C" HEAD
 233
 234 check_describe "original/original_branch_A-6-gHASH" --all test-annotated~1
 235
 236 test_expect_success '--match does not work for other types' '
 237         test_must_fail git describe --all --match="*original_branch_*" test-annotated~1
 238 '
 239
 240 test_expect_success '--exclude does not work for other types' '
 241         R=$(git describe --all --exclude="any_pattern_even_not_matching" test-annotated~1) &&
 242         case "$R" in
 243         *original_branch_A*) echo "fail: Found unknown reference $R with --exclude"
 244                 false;;
 245         *) echo ok: Found some known type;;
 246         esac
 247 '
 248
 249 test_expect_success 'name-rev with exact tags' '
 250         echo A >expect &&
 251         tag_object=$(git rev-parse refs/tags/A) &&
 252         git name-rev --tags --name-only $tag_object >actual &&
 253         test_cmp expect actual &&
 254
 255         echo "A^0" >expect &&
 256         tagged_commit=$(git rev-parse "refs/tags/A^0") &&
 257         git name-rev --tags --name-only $tagged_commit >actual &&
 258         test_cmp expect actual
 259 '
 260
 261 test_expect_success 'name-rev --all' '
 262         >expect.unsorted &&
 263         for rev in $(git rev-list --all)
 264         do
 265                 git name-rev $rev >>expect.unsorted || return 1
 266         done &&
 267         sort <expect.unsorted >expect &&
 268         git name-rev --all >actual.unsorted &&
 269         sort <actual.unsorted >actual &&
 270         test_cmp expect actual
 271 '
 272
 273 test_expect_success 'name-rev --annotate-stdin' '
 274         >expect.unsorted &&
 275         for rev in $(git rev-list --all)
 276         do
 277                 name=$(git name-rev --name-only $rev) &&
 278                 echo "$rev ($name)" >>expect.unsorted || return 1
 279         done &&
 280         sort <expect.unsorted >expect &&
 281         git rev-list --all | git name-rev --annotate-stdin >actual.unsorted &&
 282         sort <actual.unsorted >actual &&
 283         test_cmp expect actual
 284 '
 285
 286 test_expect_success 'name-rev --stdin deprecated' "
 287         git rev-list --all | git name-rev --stdin 2>actual &&
 288         grep -E 'warning: --stdin is deprecated' actual
 289 "
 290
 291 test_expect_success 'describe --contains with the exact tags' '
 292         echo "A^0" >expect &&
 293         tag_object=$(git rev-parse refs/tags/A) &&
 294         git describe --contains $tag_object >actual &&
 295         test_cmp expect actual &&
 296
 297         echo "A^0" >expect &&
 298         tagged_commit=$(git rev-parse "refs/tags/A^0") &&
 299         git describe --contains $tagged_commit >actual &&
 300         test_cmp expect actual
 301 '
 302
 303 test_expect_success 'describe --contains and --match' '
 304         echo "A^0" >expect &&
 305         tagged_commit=$(git rev-parse "refs/tags/A^0") &&
 306         test_must_fail git describe --contains --match="B" $tagged_commit &&
 307         git describe --contains --match="B" --match="A" $tagged_commit >actual &&
 308         test_cmp expect actual
 309 '
 310
 311 test_expect_success 'describe --exclude' '
 312         echo "c~1" >expect &&
 313         tagged_commit=$(git rev-parse "refs/tags/A^0") &&
 314         test_must_fail git describe --contains --match="B" $tagged_commit &&
 315         git describe --contains --match="?" --exclude="A" $tagged_commit >actual &&
 316         test_cmp expect actual
 317 '
 318
 319 test_expect_success 'describe --contains and --no-match' '
 320         echo "A^0" >expect &&
 321         tagged_commit=$(git rev-parse "refs/tags/A^0") &&
 322         git describe --contains --match="B" --no-match $tagged_commit >actual &&
 323         test_cmp expect actual
 324 '
 325
 326 test_expect_success 'setup and absorb a submodule' '
 327         test_create_repo sub1 &&
 328         test_commit -C sub1 initial &&
 329         git submodule add ./sub1 &&
 330         git submodule absorbgitdirs &&
 331         git commit -a -m "add submodule" &&
 332         git describe --dirty >expect &&
 333         git describe --broken >out &&
 334         test_cmp expect out
 335 '
 336
 337 test_expect_success 'describe chokes on severely broken submodules' '
 338         mv .git/modules/sub1/ .git/modules/sub_moved &&
 339         test_must_fail git describe --dirty
 340 '
 341
 342 test_expect_success 'describe ignoring a broken submodule' '
 343         git describe --broken >out &&
 344         grep broken out
 345 '
 346
 347 test_expect_success 'describe with --work-tree ignoring a broken submodule' '
 348         (
 349                 cd "$TEST_DIRECTORY" &&
 350                 git --git-dir "$TRASH_DIRECTORY/.git" --work-tree "$TRASH_DIRECTORY" describe --broken >"$TRASH_DIRECTORY/out"
 351         ) &&
 352         test_when_finished "mv .git/modules/sub_moved .git/modules/sub1" &&
 353         grep broken out
 354 '
 355
 356 test_expect_success 'describe a blob at a directly tagged commit' '
 357         echo "make it a unique blob" >file &&
 358         git add file && git commit -m "content in file" &&
 359         git tag -a -m "latest annotated tag" unique-file &&
 360         git describe HEAD:file >actual &&
 361         echo "unique-file:file" >expect &&
 362         test_cmp expect actual
 363 '
 364
 365 test_expect_success 'describe a blob with its first introduction' '
 366         git commit --allow-empty -m "empty commit" &&
 367         git rm file &&
 368         git commit -m "delete blob" &&
 369         git revert HEAD &&
 370         git commit --allow-empty -m "empty commit" &&
 371         git describe HEAD:file >actual &&
 372         echo "unique-file:file" >expect &&
 373         test_cmp expect actual
 374 '
 375
 376 test_expect_success 'describe directly tagged blob' '
 377         git tag test-blob unique-file:file &&
 378         git describe test-blob >actual &&
 379         echo "unique-file:file" >expect &&
 380         # suboptimal: we rather want to see "test-blob"
 381         test_cmp expect actual
 382 '
 383
 384 test_expect_success 'describe tag object' '
 385         git tag test-blob-1 -a -m msg unique-file:file &&
 386         test_must_fail git describe test-blob-1 2>actual &&
 387         test_i18ngrep "fatal: test-blob-1 is neither a commit nor blob" actual
 388 '
 389
 390 test_expect_success ULIMIT_STACK_SIZE 'name-rev works in a deep repo' '
 391         i=1 &&
 392         while test $i -lt 8000
 393         do
 394                 echo "commit refs/heads/main
 395 committer A U Thor <author@example.com> $((1000000000 + $i * 100)) +0200
 396 data <<EOF
 397 commit #$i
 398 EOF" &&
 399                 if test $i = 1
 400                 then
 401                         echo "from refs/heads/main^0"
 402                 fi &&
 403                 i=$(($i + 1)) || return 1
 404         done | git fast-import &&
 405         git checkout main &&
 406         git tag far-far-away HEAD^ &&
 407         echo "HEAD~4000 tags/far-far-away~3999" >expect &&
 408         git name-rev HEAD~4000 >actual &&
 409         test_cmp expect actual &&
 410         run_with_limited_stack git name-rev HEAD~4000 >actual &&
 411         test_cmp expect actual
 412 '
 413
 414 test_expect_success ULIMIT_STACK_SIZE 'describe works in a deep repo' '
 415         git tag -f far-far-away HEAD~7999 &&
 416         echo "far-far-away" >expect &&
 417         git describe --tags --abbrev=0 HEAD~4000 >actual &&
 418         test_cmp expect actual &&
 419         run_with_limited_stack git describe --tags --abbrev=0 HEAD~4000 >actual &&
 420         test_cmp expect actual
 421 '
 422
 423 check_describe tags/A --all A
 424 check_describe tags/c --all c
 425 check_describe heads/branch_A --all --match='branch_*' branch_A
 426
 427 test_expect_success 'describe complains about tree object' '
 428         test_must_fail git describe HEAD^{tree}
 429 '
 430
 431 test_expect_success 'describe complains about missing object' '
 432         test_must_fail git describe $ZERO_OID
 433 '
 434
 435 test_expect_success 'name-rev a rev shortly after epoch' '
 436         test_when_finished "git checkout main" &&
 437
 438         git checkout --orphan no-timestamp-underflow &&
 439         # Any date closer to epoch than the CUTOFF_DATE_SLOP constant
 440         # in builtin/name-rev.c.
 441         GIT_COMMITTER_DATE="@1234 +0000" \
 442         git commit -m "committer date shortly after epoch" &&
 443         old_commit_oid=$(git rev-parse HEAD) &&
 444
 445         echo "$old_commit_oid no-timestamp-underflow" >expect &&
 446         git name-rev $old_commit_oid >actual &&
 447         test_cmp expect actual
 448 '
 449
 450 # A--------------main
 451 #  \            /
 452 #   \----------M2
 453 #    \        /
 454 #     \---M1-C
 455 #      \ /
 456 #       B
 457 test_expect_success 'name-rev covers all conditions while looking at parents' '
 458         git init repo &&
 459         (
 460                 cd repo &&
 461
 462                 echo A >file &&
 463                 git add file &&
 464                 git commit -m A &&
 465                 A=$(git rev-parse HEAD) &&
 466
 467                 git checkout --detach &&
 468                 echo B >file &&
 469                 git commit -m B file &&
 470                 B=$(git rev-parse HEAD) &&
 471
 472                 git checkout $A &&
 473                 git merge --no-ff $B &&  # M1
 474
 475                 echo C >file &&
 476                 git commit -m C file &&
 477
 478                 git checkout $A &&
 479                 git merge --no-ff HEAD@{1} && # M2
 480
 481                 git checkout main &&
 482                 git merge --no-ff HEAD@{1} &&
 483
 484                 echo "$B main^2^2~1^2" >expect &&
 485                 git name-rev $B >actual &&
 486
 487                 test_cmp expect actual
 488         )
 489 '
 490
 491 # A-B-C-D-E-main
 492 #
 493 # Where C has a non-monotonically increasing commit timestamp w.r.t. other
 494 # commits
 495 test_expect_success 'non-monotonic commit dates setup' '
 496         UNIX_EPOCH_ZERO="@0 +0000" &&
 497         git init non-monotonic &&
 498         test_commit -C non-monotonic A &&
 499         test_commit -C non-monotonic --no-tag B &&
 500         test_commit -C non-monotonic --no-tag --date "$UNIX_EPOCH_ZERO" C &&
 501         test_commit -C non-monotonic D &&
 502         test_commit -C non-monotonic E
 503 '
 504
 505 test_expect_success 'name-rev with commitGraph handles non-monotonic timestamps' '
 506         test_config -C non-monotonic core.commitGraph true &&
 507         (
 508                 cd non-monotonic &&
 509
 510                 git commit-graph write --reachable &&
 511
 512                 echo "main~3 tags/D~2" >expect &&
 513                 git name-rev --tags main~3 >actual &&
 514
 515                 test_cmp expect actual
 516         )
 517 '
 518
 519 test_expect_success 'name-rev --all works with non-monotonic timestamps' '
 520         test_config -C non-monotonic core.commitGraph false &&
 521         (
 522                 cd non-monotonic &&
 523
 524                 rm -rf .git/info/commit-graph* &&
 525
 526                 cat >tags <<-\EOF &&
 527                 tags/E
 528                 tags/D
 529                 tags/D~1
 530                 tags/D~2
 531                 tags/A
 532                 EOF
 533
 534                 git log --pretty=%H >revs &&
 535
 536                 paste -d" " revs tags | sort >expect &&
 537
 538                 git name-rev --tags --all | sort >actual &&
 539                 test_cmp expect actual
 540         )
 541 '
 542
 543 test_expect_success 'name-rev --annotate-stdin works with non-monotonic timestamps' '
 544         test_config -C non-monotonic core.commitGraph false &&
 545         (
 546                 cd non-monotonic &&
 547
 548                 rm -rf .git/info/commit-graph* &&
 549
 550                 cat >expect <<-\EOF &&
 551                 E
 552                 D
 553                 D~1
 554                 D~2
 555                 A
 556                 EOF
 557
 558                 git log --pretty=%H >revs &&
 559                 git name-rev --tags --annotate-stdin --name-only <revs >actual &&
 560                 test_cmp expect actual
 561         )
 562 '
 563
 564 test_expect_success 'name-rev --all works with commitGraph' '
 565         test_config -C non-monotonic core.commitGraph true &&
 566         (
 567                 cd non-monotonic &&
 568
 569                 git commit-graph write --reachable &&
 570
 571                 cat >tags <<-\EOF &&
 572                 tags/E
 573                 tags/D
 574                 tags/D~1
 575                 tags/D~2
 576                 tags/A
 577                 EOF
 578
 579                 git log --pretty=%H >revs &&
 580
 581                 paste -d" " revs tags | sort >expect &&
 582
 583                 git name-rev --tags --all | sort >actual &&
 584                 test_cmp expect actual
 585         )
 586 '
 587
 588 test_expect_success 'name-rev --annotate-stdin works with commitGraph' '
 589         test_config -C non-monotonic core.commitGraph true &&
 590         (
 591                 cd non-monotonic &&
 592
 593                 git commit-graph write --reachable &&
 594
 595                 cat >expect <<-\EOF &&
 596                 E
 597                 D
 598                 D~1
 599                 D~2
 600                 A
 601                 EOF
 602
 603                 git log --pretty=%H >revs &&
 604                 git name-rev --tags --annotate-stdin --name-only <revs >actual &&
 605                 test_cmp expect actual
 606         )
 607 '
 608
 609 #               B
 610 #               o
 611 #                \
 612 #  o-----o---o----x
 613 #        A
 614 #
 615 test_expect_success 'setup: describe commits with disjoint bases' '
 616         git init disjoint1 &&
 617         (
 618                 cd disjoint1 &&
 619
 620                 echo o >> file && git add file && git commit -m o &&
 621                 echo A >> file && git add file && git commit -m A &&
 622                 git tag A -a -m A &&
 623                 echo o >> file && git add file && git commit -m o &&
 624
 625                 git checkout --orphan branch && rm file &&
 626                 echo B > file2 && git add file2 && git commit -m B &&
 627                 git tag B -a -m B &&
 628                 git merge --no-ff --allow-unrelated-histories main -m x
 629         )
 630 '
 631
 632 check_describe -C disjoint1 "A-3-gHASH" HEAD
 633
 634 #           B
 635 #   o---o---o------------.
 636 #                         \
 637 #                  o---o---x
 638 #                  A
 639 #
 640 test_expect_success 'setup: describe commits with disjoint bases 2' '
 641         git init disjoint2 &&
 642         (
 643                 cd disjoint2 &&
 644
 645                 echo A >> file && git add file && GIT_COMMITTER_DATE="2020-01-01 18:00" git commit -m A &&
 646                 git tag A -a -m A &&
 647                 echo o >> file && git add file && GIT_COMMITTER_DATE="2020-01-01 18:01" git commit -m o &&
 648
 649                 git checkout --orphan branch &&
 650                 echo o >> file2 && git add file2 && GIT_COMMITTER_DATE="2020-01-01 15:00" git commit -m o &&
 651                 echo o >> file2 && git add file2 && GIT_COMMITTER_DATE="2020-01-01 15:01" git commit -m o &&
 652                 echo B >> file2 && git add file2 && GIT_COMMITTER_DATE="2020-01-01 15:02" git commit -m B &&
 653                 git tag B -a -m B &&
 654                 git merge --no-ff --allow-unrelated-histories main -m x
 655         )
 656 '
 657
 658 check_describe -C disjoint2 "B-3-gHASH" HEAD
 659
 660 test_expect_success 'setup misleading taggerdates' '
 661         GIT_COMMITTER_DATE="2006-12-12 12:31" git tag -a -m "another tag" newer-tag-older-commit unique-file~1
 662 '
 663
 664 check_describe newer-tag-older-commit~1 --contains unique-file~2
 665
 666 test_done