t/t5510-fetch.sh

   1 #!/bin/sh
   2 # Copyright (c) 2006, Junio C Hamano.
   3
   4 test_description='Per branch config variables affects "git fetch".
   5
   6 '
   7
   8 . ./test-lib.sh
   9 . "$TEST_DIRECTORY"/lib-bundle.sh
  10
  11 D=$(pwd)
  12
  13 test_expect_success setup '
  14         echo >file original &&
  15         git add file &&
  16         git commit -a -m original &&
  17         git branch -M main
  18 '
  19
  20 test_expect_success "clone and setup child repos" '
  21         git clone . one &&
  22         (
  23                 cd one &&
  24                 echo >file updated by one &&
  25                 git commit -a -m "updated by one"
  26         ) &&
  27         git clone . two &&
  28         (
  29                 cd two &&
  30                 git config branch.main.remote one &&
  31                 git config remote.one.url ../one/.git/ &&
  32                 git config remote.one.fetch refs/heads/main:refs/heads/one
  33         ) &&
  34         git clone . three &&
  35         (
  36                 cd three &&
  37                 git config branch.main.remote two &&
  38                 git config branch.main.merge refs/heads/one &&
  39                 mkdir -p .git/remotes &&
  40                 cat >.git/remotes/two <<-\EOF
  41                 URL: ../two/.git/
  42                 Pull: refs/heads/main:refs/heads/two
  43                 Pull: refs/heads/one:refs/heads/one
  44                 EOF
  45         ) &&
  46         git clone . bundle &&
  47         git clone . seven
  48 '
  49
  50 test_expect_success "fetch test" '
  51         cd "$D" &&
  52         echo >file updated by origin &&
  53         git commit -a -m "updated by origin" &&
  54         cd two &&
  55         git fetch &&
  56         git rev-parse --verify refs/heads/one &&
  57         mine=$(git rev-parse refs/heads/one) &&
  58         his=$(cd ../one && git rev-parse refs/heads/main) &&
  59         test "z$mine" = "z$his"
  60 '
  61
  62 test_expect_success "fetch test for-merge" '
  63         cd "$D" &&
  64         cd three &&
  65         git fetch &&
  66         git rev-parse --verify refs/heads/two &&
  67         git rev-parse --verify refs/heads/one &&
  68         main_in_two=$(cd ../two && git rev-parse main) &&
  69         one_in_two=$(cd ../two && git rev-parse one) &&
  70         {
  71                 echo "$one_in_two       " &&
  72                 echo "$main_in_two      not-for-merge"
  73         } >expected &&
  74         cut -f -2 .git/FETCH_HEAD >actual &&
  75         test_cmp expected actual'
  76
  77 test_expect_success 'fetch --prune on its own works as expected' '
  78         cd "$D" &&
  79         git clone . prune &&
  80         cd prune &&
  81         git update-ref refs/remotes/origin/extrabranch main &&
  82
  83         git fetch --prune origin &&
  84         test_must_fail git rev-parse origin/extrabranch
  85 '
  86
  87 test_expect_success 'fetch --prune with a branch name keeps branches' '
  88         cd "$D" &&
  89         git clone . prune-branch &&
  90         cd prune-branch &&
  91         git update-ref refs/remotes/origin/extrabranch main &&
  92
  93         git fetch --prune origin main &&
  94         git rev-parse origin/extrabranch
  95 '
  96
  97 test_expect_success 'fetch --prune with a namespace keeps other namespaces' '
  98         cd "$D" &&
  99         git clone . prune-namespace &&
 100         cd prune-namespace &&
 101
 102         git fetch --prune origin refs/heads/a/*:refs/remotes/origin/a/* &&
 103         git rev-parse origin/main
 104 '
 105
 106 test_expect_success 'fetch --prune handles overlapping refspecs' '
 107         cd "$D" &&
 108         git update-ref refs/pull/42/head main &&
 109         git clone . prune-overlapping &&
 110         cd prune-overlapping &&
 111         git config --add remote.origin.fetch refs/pull/*/head:refs/remotes/origin/pr/* &&
 112
 113         git fetch --prune origin &&
 114         git rev-parse origin/main &&
 115         git rev-parse origin/pr/42 &&
 116
 117         git config --unset-all remote.origin.fetch &&
 118         git config remote.origin.fetch refs/pull/*/head:refs/remotes/origin/pr/* &&
 119         git config --add remote.origin.fetch refs/heads/*:refs/remotes/origin/* &&
 120
 121         git fetch --prune origin &&
 122         git rev-parse origin/main &&
 123         git rev-parse origin/pr/42
 124 '
 125
 126 test_expect_success 'fetch --prune --tags prunes branches but not tags' '
 127         cd "$D" &&
 128         git clone . prune-tags &&
 129         cd prune-tags &&
 130         git tag sometag main &&
 131         # Create what looks like a remote-tracking branch from an earlier
 132         # fetch that has since been deleted from the remote:
 133         git update-ref refs/remotes/origin/fake-remote main &&
 134
 135         git fetch --prune --tags origin &&
 136         git rev-parse origin/main &&
 137         test_must_fail git rev-parse origin/fake-remote &&
 138         git rev-parse sometag
 139 '
 140
 141 test_expect_success 'fetch --prune --tags with branch does not prune other things' '
 142         cd "$D" &&
 143         git clone . prune-tags-branch &&
 144         cd prune-tags-branch &&
 145         git tag sometag main &&
 146         git update-ref refs/remotes/origin/extrabranch main &&
 147
 148         git fetch --prune --tags origin main &&
 149         git rev-parse origin/extrabranch &&
 150         git rev-parse sometag
 151 '
 152
 153 test_expect_success 'fetch --prune --tags with refspec prunes based on refspec' '
 154         cd "$D" &&
 155         git clone . prune-tags-refspec &&
 156         cd prune-tags-refspec &&
 157         git tag sometag main &&
 158         git update-ref refs/remotes/origin/foo/otherbranch main &&
 159         git update-ref refs/remotes/origin/extrabranch main &&
 160
 161         git fetch --prune --tags origin refs/heads/foo/*:refs/remotes/origin/foo/* &&
 162         test_must_fail git rev-parse refs/remotes/origin/foo/otherbranch &&
 163         git rev-parse origin/extrabranch &&
 164         git rev-parse sometag
 165 '
 166
 167 test_expect_success REFFILES 'fetch --prune fails to delete branches' '
 168         cd "$D" &&
 169         git clone . prune-fail &&
 170         cd prune-fail &&
 171         git update-ref refs/remotes/origin/extrabranch main &&
 172         git pack-refs --all &&
 173         : this will prevent --prune from locking packed-refs for deleting refs, but adding loose refs still succeeds  &&
 174         >.git/packed-refs.new &&
 175
 176         test_must_fail git fetch --prune origin
 177 '
 178
 179 test_expect_success 'fetch --atomic works with a single branch' '
 180         test_when_finished "rm -rf \"$D\"/atomic" &&
 181
 182         cd "$D" &&
 183         git clone . atomic &&
 184         git branch atomic-branch &&
 185         oid=$(git rev-parse atomic-branch) &&
 186         echo "$oid" >expected &&
 187
 188         git -C atomic fetch --atomic origin &&
 189         git -C atomic rev-parse origin/atomic-branch >actual &&
 190         test_cmp expected actual &&
 191         test $oid = "$(git -C atomic rev-parse --verify FETCH_HEAD)"
 192 '
 193
 194 test_expect_success 'fetch --atomic works with multiple branches' '
 195         test_when_finished "rm -rf \"$D\"/atomic" &&
 196
 197         cd "$D" &&
 198         git clone . atomic &&
 199         git branch atomic-branch-1 &&
 200         git branch atomic-branch-2 &&
 201         git branch atomic-branch-3 &&
 202         git rev-parse refs/heads/atomic-branch-1 refs/heads/atomic-branch-2 refs/heads/atomic-branch-3 >actual &&
 203
 204         git -C atomic fetch --atomic origin &&
 205         git -C atomic rev-parse refs/remotes/origin/atomic-branch-1 refs/remotes/origin/atomic-branch-2 refs/remotes/origin/atomic-branch-3 >expected &&
 206         test_cmp expected actual
 207 '
 208
 209 test_expect_success 'fetch --atomic works with mixed branches and tags' '
 210         test_when_finished "rm -rf \"$D\"/atomic" &&
 211
 212         cd "$D" &&
 213         git clone . atomic &&
 214         git branch atomic-mixed-branch &&
 215         git tag atomic-mixed-tag &&
 216         git rev-parse refs/heads/atomic-mixed-branch refs/tags/atomic-mixed-tag >actual &&
 217
 218         git -C atomic fetch --tags --atomic origin &&
 219         git -C atomic rev-parse refs/remotes/origin/atomic-mixed-branch refs/tags/atomic-mixed-tag >expected &&
 220         test_cmp expected actual
 221 '
 222
 223 test_expect_success 'fetch --atomic prunes references' '
 224         test_when_finished "rm -rf \"$D\"/atomic" &&
 225
 226         cd "$D" &&
 227         git branch atomic-prune-delete &&
 228         git clone . atomic &&
 229         git branch --delete atomic-prune-delete &&
 230         git branch atomic-prune-create &&
 231         git rev-parse refs/heads/atomic-prune-create >actual &&
 232
 233         git -C atomic fetch --prune --atomic origin &&
 234         test_must_fail git -C atomic rev-parse refs/remotes/origin/atomic-prune-delete &&
 235         git -C atomic rev-parse refs/remotes/origin/atomic-prune-create >expected &&
 236         test_cmp expected actual
 237 '
 238
 239 test_expect_success 'fetch --atomic aborts with non-fast-forward update' '
 240         test_when_finished "rm -rf \"$D\"/atomic" &&
 241
 242         cd "$D" &&
 243         git branch atomic-non-ff &&
 244         git clone . atomic &&
 245         git rev-parse HEAD >actual &&
 246
 247         git branch atomic-new-branch &&
 248         parent_commit=$(git rev-parse atomic-non-ff~) &&
 249         git update-ref refs/heads/atomic-non-ff $parent_commit &&
 250
 251         test_must_fail git -C atomic fetch --atomic origin refs/heads/*:refs/remotes/origin/* &&
 252         test_must_fail git -C atomic rev-parse refs/remotes/origin/atomic-new-branch &&
 253         git -C atomic rev-parse refs/remotes/origin/atomic-non-ff >expected &&
 254         test_cmp expected actual &&
 255         test_must_be_empty atomic/.git/FETCH_HEAD
 256 '
 257
 258 test_expect_success 'fetch --atomic executes a single reference transaction only' '
 259         test_when_finished "rm -rf \"$D\"/atomic" &&
 260
 261         cd "$D" &&
 262         git clone . atomic &&
 263         git branch atomic-hooks-1 &&
 264         git branch atomic-hooks-2 &&
 265         head_oid=$(git rev-parse HEAD) &&
 266
 267         cat >expected <<-EOF &&
 268                 prepared
 269                 $ZERO_OID $head_oid refs/remotes/origin/atomic-hooks-1
 270                 $ZERO_OID $head_oid refs/remotes/origin/atomic-hooks-2
 271                 committed
 272                 $ZERO_OID $head_oid refs/remotes/origin/atomic-hooks-1
 273                 $ZERO_OID $head_oid refs/remotes/origin/atomic-hooks-2
 274         EOF
 275
 276         rm -f atomic/actual &&
 277         test_hook -C atomic reference-transaction <<-\EOF &&
 278                 ( echo "$*" && cat ) >>actual
 279         EOF
 280
 281         git -C atomic fetch --atomic origin &&
 282         test_cmp expected atomic/actual
 283 '
 284
 285 test_expect_success 'fetch --atomic aborts all reference updates if hook aborts' '
 286         test_when_finished "rm -rf \"$D\"/atomic" &&
 287
 288         cd "$D" &&
 289         git clone . atomic &&
 290         git branch atomic-hooks-abort-1 &&
 291         git branch atomic-hooks-abort-2 &&
 292         git branch atomic-hooks-abort-3 &&
 293         git tag atomic-hooks-abort &&
 294         head_oid=$(git rev-parse HEAD) &&
 295
 296         cat >expected <<-EOF &&
 297                 prepared
 298                 $ZERO_OID $head_oid refs/remotes/origin/atomic-hooks-abort-1
 299                 $ZERO_OID $head_oid refs/remotes/origin/atomic-hooks-abort-2
 300                 $ZERO_OID $head_oid refs/remotes/origin/atomic-hooks-abort-3
 301                 $ZERO_OID $head_oid refs/tags/atomic-hooks-abort
 302                 aborted
 303                 $ZERO_OID $head_oid refs/remotes/origin/atomic-hooks-abort-1
 304                 $ZERO_OID $head_oid refs/remotes/origin/atomic-hooks-abort-2
 305                 $ZERO_OID $head_oid refs/remotes/origin/atomic-hooks-abort-3
 306                 $ZERO_OID $head_oid refs/tags/atomic-hooks-abort
 307         EOF
 308
 309         rm -f atomic/actual &&
 310         test_hook -C atomic/.git reference-transaction <<-\EOF &&
 311                 ( echo "$*" && cat ) >>actual
 312                 exit 1
 313         EOF
 314
 315         git -C atomic for-each-ref >expected-refs &&
 316         test_must_fail git -C atomic fetch --tags --atomic origin &&
 317         git -C atomic for-each-ref >actual-refs &&
 318         test_cmp expected-refs actual-refs &&
 319         test_must_be_empty atomic/.git/FETCH_HEAD
 320 '
 321
 322 test_expect_success 'fetch --atomic --append appends to FETCH_HEAD' '
 323         test_when_finished "rm -rf \"$D\"/atomic" &&
 324
 325         cd "$D" &&
 326         git clone . atomic &&
 327         oid=$(git rev-parse HEAD) &&
 328
 329         git branch atomic-fetch-head-1 &&
 330         git -C atomic fetch --atomic origin atomic-fetch-head-1 &&
 331         test_line_count = 1 atomic/.git/FETCH_HEAD &&
 332
 333         git branch atomic-fetch-head-2 &&
 334         git -C atomic fetch --atomic --append origin atomic-fetch-head-2 &&
 335         test_line_count = 2 atomic/.git/FETCH_HEAD &&
 336         cp atomic/.git/FETCH_HEAD expected &&
 337
 338         test_hook -C atomic reference-transaction <<-\EOF &&
 339                 exit 1
 340         EOF
 341
 342         git branch atomic-fetch-head-3 &&
 343         test_must_fail git -C atomic fetch --atomic --append origin atomic-fetch-head-3 &&
 344         test_cmp expected atomic/.git/FETCH_HEAD
 345 '
 346
 347 test_expect_success '--refmap="" ignores configured refspec' '
 348         cd "$TRASH_DIRECTORY" &&
 349         git clone "$D" remote-refs &&
 350         git -C remote-refs rev-parse remotes/origin/main >old &&
 351         git -C remote-refs update-ref refs/remotes/origin/main main~1 &&
 352         git -C remote-refs rev-parse remotes/origin/main >new &&
 353         git -C remote-refs fetch --refmap= origin "+refs/heads/*:refs/hidden/origin/*" &&
 354         git -C remote-refs rev-parse remotes/origin/main >actual &&
 355         test_cmp new actual &&
 356         git -C remote-refs fetch origin &&
 357         git -C remote-refs rev-parse remotes/origin/main >actual &&
 358         test_cmp old actual
 359 '
 360
 361 test_expect_success '--refmap="" and --prune' '
 362         git -C remote-refs update-ref refs/remotes/origin/foo/otherbranch main &&
 363         git -C remote-refs update-ref refs/hidden/foo/otherbranch main &&
 364         git -C remote-refs fetch --prune --refmap="" origin +refs/heads/*:refs/hidden/* &&
 365         git -C remote-refs rev-parse remotes/origin/foo/otherbranch &&
 366         test_must_fail git -C remote-refs rev-parse refs/hidden/foo/otherbranch &&
 367         git -C remote-refs fetch --prune origin &&
 368         test_must_fail git -C remote-refs rev-parse remotes/origin/foo/otherbranch
 369 '
 370
 371 test_expect_success 'fetch tags when there is no tags' '
 372
 373     cd "$D" &&
 374
 375     mkdir notags &&
 376     cd notags &&
 377     git init &&
 378
 379     git fetch -t ..
 380
 381 '
 382
 383 test_expect_success 'fetch following tags' '
 384
 385         cd "$D" &&
 386         git tag -a -m "annotated" anno HEAD &&
 387         git tag light HEAD &&
 388
 389         mkdir four &&
 390         cd four &&
 391         git init &&
 392
 393         git fetch .. :track &&
 394         git show-ref --verify refs/tags/anno &&
 395         git show-ref --verify refs/tags/light
 396
 397 '
 398
 399 test_expect_success 'fetch uses remote ref names to describe new refs' '
 400         cd "$D" &&
 401         git init descriptive &&
 402         (
 403                 cd descriptive &&
 404                 git config remote.o.url .. &&
 405                 git config remote.o.fetch "refs/heads/*:refs/crazyheads/*" &&
 406                 git config --add remote.o.fetch "refs/others/*:refs/heads/*" &&
 407                 git fetch o
 408         ) &&
 409         git tag -a -m "Descriptive tag" descriptive-tag &&
 410         git branch descriptive-branch &&
 411         git checkout descriptive-branch &&
 412         echo "Nuts" >crazy &&
 413         git add crazy &&
 414         git commit -a -m "descriptive commit" &&
 415         git update-ref refs/others/crazy HEAD &&
 416         (
 417                 cd descriptive &&
 418                 git fetch o 2>actual &&
 419                 test_grep "new branch.* -> refs/crazyheads/descriptive-branch$" actual &&
 420                 test_grep "new tag.* -> descriptive-tag$" actual &&
 421                 test_grep "new ref.* -> crazy$" actual
 422         ) &&
 423         git checkout main
 424 '
 425
 426 test_expect_success 'fetch must not resolve short tag name' '
 427
 428         cd "$D" &&
 429
 430         mkdir five &&
 431         cd five &&
 432         git init &&
 433
 434         test_must_fail git fetch .. anno:five
 435
 436 '
 437
 438 test_expect_success 'fetch can now resolve short remote name' '
 439
 440         cd "$D" &&
 441         git update-ref refs/remotes/six/HEAD HEAD &&
 442
 443         mkdir six &&
 444         cd six &&
 445         git init &&
 446
 447         git fetch .. six:six
 448 '
 449
 450 test_expect_success 'create bundle 1' '
 451         cd "$D" &&
 452         echo >file updated again by origin &&
 453         git commit -a -m "tip" &&
 454         git bundle create --version=3 bundle1 main^..main
 455 '
 456
 457 test_expect_success 'header of bundle looks right' '
 458         cat >expect <<-EOF &&
 459         # v3 git bundle
 460         @object-format=$(test_oid algo)
 461         -OID updated by origin
 462         OID refs/heads/main
 463
 464         EOF
 465         sed -e "s/$OID_REGEX/OID/g" -e "5q" "$D"/bundle1 >actual &&
 466         test_cmp expect actual
 467 '
 468
 469 test_expect_success 'create bundle 2' '
 470         cd "$D" &&
 471         git bundle create bundle2 main~2..main
 472 '
 473
 474 test_expect_success 'unbundle 1' '
 475         cd "$D/bundle" &&
 476         git checkout -b some-branch &&
 477         test_must_fail git fetch "$D/bundle1" main:main
 478 '
 479
 480
 481 test_expect_success 'bundle 1 has only 3 files ' '
 482         cd "$D" &&
 483         test_bundle_object_count bundle1 3
 484 '
 485
 486 test_expect_success 'unbundle 2' '
 487         cd "$D/bundle" &&
 488         git fetch ../bundle2 main:main &&
 489         test "tip" = "$(git log -1 --pretty=oneline main | cut -d" " -f2)"
 490 '
 491
 492 test_expect_success 'bundle does not prerequisite objects' '
 493         cd "$D" &&
 494         touch file2 &&
 495         git add file2 &&
 496         git commit -m add.file2 file2 &&
 497         git bundle create bundle3 -1 HEAD &&
 498         test_bundle_object_count bundle3 3
 499 '
 500
 501 test_expect_success 'bundle should be able to create a full history' '
 502
 503         cd "$D" &&
 504         git tag -a -m "1.0" v1.0 main &&
 505         git bundle create bundle4 v1.0
 506
 507 '
 508
 509 test_expect_success 'fetch with a non-applying branch.<name>.merge' '
 510         git config branch.main.remote yeti &&
 511         git config branch.main.merge refs/heads/bigfoot &&
 512         git config remote.blub.url one &&
 513         git config remote.blub.fetch "refs/heads/*:refs/remotes/one/*" &&
 514         git fetch blub
 515 '
 516
 517 # URL supplied to fetch does not match the url of the configured branch's remote
 518 test_expect_success 'fetch from GIT URL with a non-applying branch.<name>.merge [1]' '
 519         one_head=$(cd one && git rev-parse HEAD) &&
 520         this_head=$(git rev-parse HEAD) &&
 521         rm .git/FETCH_HEAD &&
 522         git fetch one &&
 523         test $one_head = "$(git rev-parse --verify FETCH_HEAD)" &&
 524         test $this_head = "$(git rev-parse --verify HEAD)"
 525 '
 526
 527 # URL supplied to fetch matches the url of the configured branch's remote and
 528 # the merge spec matches the branch the remote HEAD points to
 529 test_expect_success 'fetch from GIT URL with a non-applying branch.<name>.merge [2]' '
 530         one_ref=$(cd one && git symbolic-ref HEAD) &&
 531         git config branch.main.remote blub &&
 532         git config branch.main.merge "$one_ref" &&
 533         rm .git/FETCH_HEAD &&
 534         git fetch one &&
 535         test $one_head = "$(git rev-parse --verify FETCH_HEAD)" &&
 536         test $this_head = "$(git rev-parse --verify HEAD)"
 537 '
 538
 539 # URL supplied to fetch matches the url of the configured branch's remote, but
 540 # the merge spec does not match the branch the remote HEAD points to
 541 test_expect_success 'fetch from GIT URL with a non-applying branch.<name>.merge [3]' '
 542         git config branch.main.merge "${one_ref}_not" &&
 543         rm .git/FETCH_HEAD &&
 544         git fetch one &&
 545         test $one_head = "$(git rev-parse --verify FETCH_HEAD)" &&
 546         test $this_head = "$(git rev-parse --verify HEAD)"
 547 '
 548
 549 # the strange name is: a\!'b
 550 test_expect_success 'quoting of a strangely named repo' '
 551         test_must_fail git fetch "a\\!'\''b" > result 2>&1 &&
 552         grep "fatal: '\''a\\\\!'\''b'\''" result
 553 '
 554
 555 test_expect_success 'bundle should record HEAD correctly' '
 556
 557         cd "$D" &&
 558         git bundle create bundle5 HEAD main &&
 559         git bundle list-heads bundle5 >actual &&
 560         for h in HEAD refs/heads/main
 561         do
 562                 echo "$(git rev-parse --verify $h) $h" || return 1
 563         done >expect &&
 564         test_cmp expect actual
 565
 566 '
 567
 568 test_expect_success 'mark initial state of origin/main' '
 569         (
 570                 cd three &&
 571                 git tag base-origin-main refs/remotes/origin/main
 572         )
 573 '
 574
 575 test_expect_success 'explicit fetch should update tracking' '
 576
 577         cd "$D" &&
 578         git branch -f side &&
 579         (
 580                 cd three &&
 581                 git update-ref refs/remotes/origin/main base-origin-main &&
 582                 o=$(git rev-parse --verify refs/remotes/origin/main) &&
 583                 git fetch origin main &&
 584                 n=$(git rev-parse --verify refs/remotes/origin/main) &&
 585                 test "$o" != "$n" &&
 586                 test_must_fail git rev-parse --verify refs/remotes/origin/side
 587         )
 588 '
 589
 590 test_expect_success 'explicit pull should update tracking' '
 591
 592         cd "$D" &&
 593         git branch -f side &&
 594         (
 595                 cd three &&
 596                 git update-ref refs/remotes/origin/main base-origin-main &&
 597                 o=$(git rev-parse --verify refs/remotes/origin/main) &&
 598                 git pull origin main &&
 599                 n=$(git rev-parse --verify refs/remotes/origin/main) &&
 600                 test "$o" != "$n" &&
 601                 test_must_fail git rev-parse --verify refs/remotes/origin/side
 602         )
 603 '
 604
 605 test_expect_success 'explicit --refmap is allowed only with command-line refspec' '
 606         cd "$D" &&
 607         (
 608                 cd three &&
 609                 test_must_fail git fetch --refmap="*:refs/remotes/none/*"
 610         )
 611 '
 612
 613 test_expect_success 'explicit --refmap option overrides remote.*.fetch' '
 614         cd "$D" &&
 615         git branch -f side &&
 616         (
 617                 cd three &&
 618                 git update-ref refs/remotes/origin/main base-origin-main &&
 619                 o=$(git rev-parse --verify refs/remotes/origin/main) &&
 620                 git fetch --refmap="refs/heads/*:refs/remotes/other/*" origin main &&
 621                 n=$(git rev-parse --verify refs/remotes/origin/main) &&
 622                 test "$o" = "$n" &&
 623                 test_must_fail git rev-parse --verify refs/remotes/origin/side &&
 624                 git rev-parse --verify refs/remotes/other/main
 625         )
 626 '
 627
 628 test_expect_success 'explicitly empty --refmap option disables remote.*.fetch' '
 629         cd "$D" &&
 630         git branch -f side &&
 631         (
 632                 cd three &&
 633                 git update-ref refs/remotes/origin/main base-origin-main &&
 634                 o=$(git rev-parse --verify refs/remotes/origin/main) &&
 635                 git fetch --refmap="" origin main &&
 636                 n=$(git rev-parse --verify refs/remotes/origin/main) &&
 637                 test "$o" = "$n" &&
 638                 test_must_fail git rev-parse --verify refs/remotes/origin/side
 639         )
 640 '
 641
 642 test_expect_success 'configured fetch updates tracking' '
 643
 644         cd "$D" &&
 645         git branch -f side &&
 646         (
 647                 cd three &&
 648                 git update-ref refs/remotes/origin/main base-origin-main &&
 649                 o=$(git rev-parse --verify refs/remotes/origin/main) &&
 650                 git fetch origin &&
 651                 n=$(git rev-parse --verify refs/remotes/origin/main) &&
 652                 test "$o" != "$n" &&
 653                 git rev-parse --verify refs/remotes/origin/side
 654         )
 655 '
 656
 657 test_expect_success 'non-matching refspecs do not confuse tracking update' '
 658         cd "$D" &&
 659         git update-ref refs/odd/location HEAD &&
 660         (
 661                 cd three &&
 662                 git update-ref refs/remotes/origin/main base-origin-main &&
 663                 git config --add remote.origin.fetch \
 664                         refs/odd/location:refs/remotes/origin/odd &&
 665                 o=$(git rev-parse --verify refs/remotes/origin/main) &&
 666                 git fetch origin main &&
 667                 n=$(git rev-parse --verify refs/remotes/origin/main) &&
 668                 test "$o" != "$n" &&
 669                 test_must_fail git rev-parse --verify refs/remotes/origin/odd
 670         )
 671 '
 672
 673 test_expect_success 'pushing nonexistent branch by mistake should not segv' '
 674
 675         cd "$D" &&
 676         test_must_fail git push seven no:no
 677
 678 '
 679
 680 test_expect_success 'auto tag following fetches minimum' '
 681
 682         cd "$D" &&
 683         git clone .git follow &&
 684         git checkout HEAD^0 &&
 685         (
 686                 for i in 1 2 3 4 5 6 7
 687                 do
 688                         echo $i >>file &&
 689                         git commit -m $i -a &&
 690                         git tag -a -m $i excess-$i || exit 1
 691                 done
 692         ) &&
 693         git checkout main &&
 694         (
 695                 cd follow &&
 696                 git fetch
 697         )
 698 '
 699
 700 test_expect_success 'refuse to fetch into the current branch' '
 701
 702         test_must_fail git fetch . side:main
 703
 704 '
 705
 706 test_expect_success 'fetch into the current branch with --update-head-ok' '
 707
 708         git fetch --update-head-ok . side:main
 709
 710 '
 711
 712 test_expect_success 'fetch --dry-run does not touch FETCH_HEAD, but still prints what would be written' '
 713         rm -f .git/FETCH_HEAD err &&
 714         git fetch --dry-run . 2>err &&
 715         ! test -f .git/FETCH_HEAD &&
 716         grep FETCH_HEAD err
 717 '
 718
 719 test_expect_success '--no-write-fetch-head does not touch FETCH_HEAD, and does not print what would be written' '
 720         rm -f .git/FETCH_HEAD err &&
 721         git fetch --no-write-fetch-head . 2>err &&
 722         ! test -f .git/FETCH_HEAD &&
 723         ! grep FETCH_HEAD err
 724 '
 725
 726 test_expect_success '--write-fetch-head gets defeated by --dry-run' '
 727         rm -f .git/FETCH_HEAD &&
 728         git fetch --dry-run --write-fetch-head . &&
 729         ! test -f .git/FETCH_HEAD
 730 '
 731
 732 test_expect_success "should be able to fetch with duplicate refspecs" '
 733         mkdir dups &&
 734         (
 735                 cd dups &&
 736                 git init &&
 737                 git config branch.main.remote three &&
 738                 git config remote.three.url ../three/.git &&
 739                 git config remote.three.fetch +refs/heads/*:refs/remotes/origin/* &&
 740                 git config --add remote.three.fetch +refs/heads/*:refs/remotes/origin/* &&
 741                 git fetch three
 742         )
 743 '
 744
 745 test_expect_success 'LHS of refspec follows ref disambiguation rules' '
 746         mkdir lhs-ambiguous &&
 747         (
 748                 cd lhs-ambiguous &&
 749                 git init server &&
 750                 test_commit -C server unwanted &&
 751                 test_commit -C server wanted &&
 752
 753                 git init client &&
 754
 755                 # Check a name coming after "refs" alphabetically ...
 756                 git -C server update-ref refs/heads/s wanted &&
 757                 git -C server update-ref refs/heads/refs/heads/s unwanted &&
 758                 git -C client fetch ../server +refs/heads/s:refs/heads/checkthis &&
 759                 git -C server rev-parse wanted >expect &&
 760                 git -C client rev-parse checkthis >actual &&
 761                 test_cmp expect actual &&
 762
 763                 # ... and one before.
 764                 git -C server update-ref refs/heads/q wanted &&
 765                 git -C server update-ref refs/heads/refs/heads/q unwanted &&
 766                 git -C client fetch ../server +refs/heads/q:refs/heads/checkthis &&
 767                 git -C server rev-parse wanted >expect &&
 768                 git -C client rev-parse checkthis >actual &&
 769                 test_cmp expect actual &&
 770
 771                 # Tags are preferred over branches like refs/{heads,tags}/*
 772                 git -C server update-ref refs/tags/t wanted &&
 773                 git -C server update-ref refs/heads/t unwanted &&
 774                 git -C client fetch ../server +t:refs/heads/checkthis &&
 775                 git -C server rev-parse wanted >expect &&
 776                 git -C client rev-parse checkthis >actual
 777         )
 778 '
 779
 780 test_expect_success 'fetch.writeCommitGraph' '
 781         git clone three write &&
 782         (
 783                 cd three &&
 784                 test_commit new
 785         ) &&
 786         (
 787                 cd write &&
 788                 git -c fetch.writeCommitGraph fetch origin &&
 789                 test_path_is_file .git/objects/info/commit-graphs/commit-graph-chain
 790         )
 791 '
 792
 793 test_expect_success 'fetch.writeCommitGraph with submodules' '
 794         test_config_global protocol.file.allow always &&
 795         git clone dups super &&
 796         (
 797                 cd super &&
 798                 git submodule add "file://$TRASH_DIRECTORY/three" &&
 799                 git commit -m "add submodule"
 800         ) &&
 801         git clone "super" super-clone &&
 802         (
 803                 cd super-clone &&
 804                 rm -rf .git/objects/info &&
 805                 git -c fetch.writeCommitGraph=true fetch origin &&
 806                 test_path_is_file .git/objects/info/commit-graphs/commit-graph-chain &&
 807                 git -c fetch.writeCommitGraph=true fetch --recurse-submodules origin
 808         )
 809 '
 810
 811 # fetches from first configured url
 812 test_expect_success 'fetch from multiple configured URLs in single remote' '
 813         git init url1 &&
 814         git remote add multipleurls url1 &&
 815         git remote set-url --add multipleurls url2 &&
 816         git fetch multipleurls
 817 '
 818
 819 # configured prune tests
 820
 821 set_config_tristate () {
 822         # var=$1 val=$2
 823         case "$2" in
 824         unset)
 825                 test_unconfig "$1"
 826                 ;;
 827         *)
 828                 git config "$1" "$2"
 829                 key=$(echo $1 | sed -e 's/^remote\.origin/fetch/')
 830                 git_fetch_c="$git_fetch_c -c $key=$2"
 831                 ;;
 832         esac
 833 }
 834
 835 test_configured_prune () {
 836         test_configured_prune_type "$@" "name"
 837         test_configured_prune_type "$@" "link"
 838 }
 839
 840 test_configured_prune_type () {
 841         fetch_prune=$1
 842         remote_origin_prune=$2
 843         fetch_prune_tags=$3
 844         remote_origin_prune_tags=$4
 845         expected_branch=$5
 846         expected_tag=$6
 847         cmdline=$7
 848         mode=$8
 849
 850         if test -z "$cmdline_setup"
 851         then
 852                 test_expect_success 'setup cmdline_setup variable for subsequent test' '
 853                         remote_url="file://$(git -C one config remote.origin.url)" &&
 854                         remote_fetch="$(git -C one config remote.origin.fetch)" &&
 855                         cmdline_setup="\"$remote_url\" \"$remote_fetch\""
 856                 '
 857         fi
 858
 859         if test "$mode" = 'link'
 860         then
 861                 new_cmdline=""
 862
 863                 if test "$cmdline" = ""
 864                 then
 865                         new_cmdline=$cmdline_setup
 866                 else
 867                         new_cmdline=$(perl -e '
 868                                 my ($cmdline, $url) = @ARGV;
 869                                 $cmdline =~ s[origin(?!/)][quotemeta($url)]ge;
 870                                 print $cmdline;
 871                         ' -- "$cmdline" "$remote_url")
 872                 fi
 873
 874                 if test "$fetch_prune_tags" = 'true' ||
 875                    test "$remote_origin_prune_tags" = 'true'
 876                 then
 877                         if ! printf '%s' "$cmdline\n" | grep -q refs/remotes/origin/
 878                         then
 879                                 new_cmdline="$new_cmdline refs/tags/*:refs/tags/*"
 880                         fi
 881                 fi
 882
 883                 cmdline="$new_cmdline"
 884         fi
 885
 886         test_expect_success "$mode prune fetch.prune=$1 remote.origin.prune=$2 fetch.pruneTags=$3 remote.origin.pruneTags=$4${7:+ $7}; branch:$5 tag:$6" '
 887                 # make sure a newbranch is there in . and also in one
 888                 git branch -f newbranch &&
 889                 git tag -f newtag &&
 890                 (
 891                         cd one &&
 892                         test_unconfig fetch.prune &&
 893                         test_unconfig fetch.pruneTags &&
 894                         test_unconfig remote.origin.prune &&
 895                         test_unconfig remote.origin.pruneTags &&
 896                         git fetch '"$cmdline_setup"' &&
 897                         git rev-parse --verify refs/remotes/origin/newbranch &&
 898                         git rev-parse --verify refs/tags/newtag
 899                 ) &&
 900
 901                 # now remove them
 902                 git branch -d newbranch &&
 903                 git tag -d newtag &&
 904
 905                 # then test
 906                 (
 907                         cd one &&
 908                         git_fetch_c="" &&
 909                         set_config_tristate fetch.prune $fetch_prune &&
 910                         set_config_tristate fetch.pruneTags $fetch_prune_tags &&
 911                         set_config_tristate remote.origin.prune $remote_origin_prune &&
 912                         set_config_tristate remote.origin.pruneTags $remote_origin_prune_tags &&
 913
 914                         if test "$mode" != "link"
 915                         then
 916                                 git_fetch_c=""
 917                         fi &&
 918                         git$git_fetch_c fetch '"$cmdline"' &&
 919                         case "$expected_branch" in
 920                         pruned)
 921                                 test_must_fail git rev-parse --verify refs/remotes/origin/newbranch
 922                                 ;;
 923                         kept)
 924                                 git rev-parse --verify refs/remotes/origin/newbranch
 925                                 ;;
 926                         esac &&
 927                         case "$expected_tag" in
 928                         pruned)
 929                                 test_must_fail git rev-parse --verify refs/tags/newtag
 930                                 ;;
 931                         kept)
 932                                 git rev-parse --verify refs/tags/newtag
 933                                 ;;
 934                         esac
 935                 )
 936         '
 937 }
 938
 939 # $1 config: fetch.prune
 940 # $2 config: remote.<name>.prune
 941 # $3 config: fetch.pruneTags
 942 # $4 config: remote.<name>.pruneTags
 943 # $5 expect: branch to be pruned?
 944 # $6 expect: tag to be pruned?
 945 # $7 git-fetch $cmdline:
 946 #
 947 #                     $1    $2    $3    $4    $5     $6     $7
 948 test_configured_prune unset unset unset unset kept   kept   ""
 949 test_configured_prune unset unset unset unset kept   kept   "--no-prune"
 950 test_configured_prune unset unset unset unset pruned kept   "--prune"
 951 test_configured_prune unset unset unset unset kept   pruned \
 952         "--prune origin refs/tags/*:refs/tags/*"
 953 test_configured_prune unset unset unset unset pruned pruned \
 954         "--prune origin refs/tags/*:refs/tags/* +refs/heads/*:refs/remotes/origin/*"
 955
 956 test_configured_prune false unset unset unset kept   kept   ""
 957 test_configured_prune false unset unset unset kept   kept   "--no-prune"
 958 test_configured_prune false unset unset unset pruned kept   "--prune"
 959
 960 test_configured_prune true  unset unset unset pruned kept   ""
 961 test_configured_prune true  unset unset unset pruned kept   "--prune"
 962 test_configured_prune true  unset unset unset kept   kept   "--no-prune"
 963
 964 test_configured_prune unset false unset unset kept   kept   ""
 965 test_configured_prune unset false unset unset kept   kept   "--no-prune"
 966 test_configured_prune unset false unset unset pruned kept   "--prune"
 967
 968 test_configured_prune false false unset unset kept   kept   ""
 969 test_configured_prune false false unset unset kept   kept   "--no-prune"
 970 test_configured_prune false false unset unset pruned kept   "--prune"
 971 test_configured_prune false false unset unset kept   pruned \
 972         "--prune origin refs/tags/*:refs/tags/*"
 973 test_configured_prune false false unset unset pruned pruned \
 974         "--prune origin refs/tags/*:refs/tags/* +refs/heads/*:refs/remotes/origin/*"
 975
 976 test_configured_prune true  false unset unset kept   kept   ""
 977 test_configured_prune true  false unset unset pruned kept   "--prune"
 978 test_configured_prune true  false unset unset kept   kept   "--no-prune"
 979
 980 test_configured_prune unset true  unset unset pruned kept   ""
 981 test_configured_prune unset true  unset unset kept   kept   "--no-prune"
 982 test_configured_prune unset true  unset unset pruned kept   "--prune"
 983
 984 test_configured_prune false true  unset unset pruned kept   ""
 985 test_configured_prune false true  unset unset kept   kept   "--no-prune"
 986 test_configured_prune false true  unset unset pruned kept   "--prune"
 987
 988 test_configured_prune true  true  unset unset pruned kept   ""
 989 test_configured_prune true  true  unset unset pruned kept   "--prune"
 990 test_configured_prune true  true  unset unset kept   kept   "--no-prune"
 991 test_configured_prune true  true  unset unset kept   pruned \
 992         "--prune origin refs/tags/*:refs/tags/*"
 993 test_configured_prune true  true  unset unset pruned pruned \
 994         "--prune origin refs/tags/*:refs/tags/* +refs/heads/*:refs/remotes/origin/*"
 995
 996 # --prune-tags on its own does nothing, needs --prune as well, same
 997 # for fetch.pruneTags without fetch.prune
 998 test_configured_prune unset unset unset unset kept kept     "--prune-tags"
 999 test_configured_prune unset unset true unset  kept kept     ""
1000 test_configured_prune unset unset unset true  kept kept     ""
1001
1002 # These will prune the tags
1003 test_configured_prune unset unset unset unset pruned pruned "--prune --prune-tags"
1004 test_configured_prune true  unset true  unset pruned pruned ""
1005 test_configured_prune unset true  unset true  pruned pruned ""
1006
1007 # remote.<name>.pruneTags overrides fetch.pruneTags, just like
1008 # remote.<name>.prune overrides fetch.prune if set.
1009 test_configured_prune true  unset true unset pruned pruned  ""
1010 test_configured_prune false true  false true  pruned pruned ""
1011 test_configured_prune true  false true  false kept   kept   ""
1012
1013 # When --prune-tags is supplied it's ignored if an explicit refspec is
1014 # given, same for the configuration options.
1015 test_configured_prune unset unset unset unset pruned kept \
1016         "--prune --prune-tags origin +refs/heads/*:refs/remotes/origin/*"
1017 test_configured_prune unset unset true  unset pruned kept \
1018         "--prune origin +refs/heads/*:refs/remotes/origin/*"
1019 test_configured_prune unset unset unset true pruned  kept \
1020         "--prune origin +refs/heads/*:refs/remotes/origin/*"
1021
1022 # Pruning that also takes place if a file:// url replaces a named
1023 # remote. However, because there's no implicit
1024 # +refs/heads/*:refs/remotes/origin/* refspec and supplying it on the
1025 # command-line negates --prune-tags, the branches will not be pruned.
1026 test_configured_prune_type unset unset unset unset kept   kept   "origin --prune-tags" "name"
1027 test_configured_prune_type unset unset unset unset kept   kept   "origin --prune-tags" "link"
1028 test_configured_prune_type unset unset unset unset pruned pruned "origin --prune --prune-tags" "name"
1029 test_configured_prune_type unset unset unset unset kept   pruned "origin --prune --prune-tags" "link"
1030 test_configured_prune_type unset unset unset unset pruned pruned "--prune --prune-tags origin" "name"
1031 test_configured_prune_type unset unset unset unset kept   pruned "--prune --prune-tags origin" "link"
1032 test_configured_prune_type unset unset true  unset pruned pruned "--prune origin" "name"
1033 test_configured_prune_type unset unset true  unset kept   pruned "--prune origin" "link"
1034 test_configured_prune_type unset unset unset true  pruned pruned "--prune origin" "name"
1035 test_configured_prune_type unset unset unset true  kept   pruned "--prune origin" "link"
1036 test_configured_prune_type true  unset true  unset pruned pruned "origin" "name"
1037 test_configured_prune_type true  unset true  unset kept   pruned "origin" "link"
1038 test_configured_prune_type unset  true true  unset pruned pruned "origin" "name"
1039 test_configured_prune_type unset  true true  unset kept   pruned "origin" "link"
1040 test_configured_prune_type unset  true unset true  pruned pruned "origin" "name"
1041 test_configured_prune_type unset  true unset true  kept   pruned "origin" "link"
1042
1043 # When all remote.origin.fetch settings are deleted a --prune
1044 # --prune-tags still implicitly supplies refs/tags/*:refs/tags/* so
1045 # tags, but not tracking branches, will be deleted.
1046 test_expect_success 'remove remote.origin.fetch "one"' '
1047         (
1048                 cd one &&
1049                 git config --unset-all remote.origin.fetch
1050         )
1051 '
1052 test_configured_prune_type unset unset unset unset kept pruned "origin --prune --prune-tags" "name"
1053 test_configured_prune_type unset unset unset unset kept pruned "origin --prune --prune-tags" "link"
1054
1055 test_expect_success 'all boundary commits are excluded' '
1056         test_commit base &&
1057         test_commit oneside &&
1058         git checkout HEAD^ &&
1059         test_commit otherside &&
1060         git checkout main &&
1061         test_tick &&
1062         git merge otherside &&
1063         ad=$(git log --no-walk --format=%ad HEAD) &&
1064         git bundle create twoside-boundary.bdl main --since="$ad" &&
1065         test_bundle_object_count --thin twoside-boundary.bdl 3
1066 '
1067
1068 test_expect_success 'fetch --prune prints the remotes url' '
1069         git branch goodbye &&
1070         git clone . only-prunes &&
1071         git branch -D goodbye &&
1072         (
1073                 cd only-prunes &&
1074                 git fetch --prune origin 2>&1 | head -n1 >../actual
1075         ) &&
1076         echo "From ${D}/." >expect &&
1077         test_cmp expect actual
1078 '
1079
1080 test_expect_success 'branchname D/F conflict resolved by --prune' '
1081         git branch dir/file &&
1082         git clone . prune-df-conflict &&
1083         git branch -D dir/file &&
1084         git branch dir &&
1085         (
1086                 cd prune-df-conflict &&
1087                 git fetch --prune &&
1088                 git rev-parse origin/dir >../actual
1089         ) &&
1090         git rev-parse dir >expect &&
1091         test_cmp expect actual
1092 '
1093
1094 test_expect_success 'branchname D/F conflict rejected with targeted error message' '
1095         git clone . df-conflict-error &&
1096         git branch dir_conflict &&
1097         (
1098                 cd df-conflict-error &&
1099                 git update-ref refs/remotes/origin/dir_conflict/file HEAD &&
1100                 test_must_fail git fetch 2>err &&
1101                 test_grep "error: some local refs could not be updated; try running" err &&
1102                 test_grep " ${SQ}git remote prune origin${SQ} to remove any old, conflicting branches" err &&
1103                 git pack-refs --all &&
1104                 test_must_fail git fetch 2>err-packed &&
1105                 test_grep "error: some local refs could not be updated; try running" err-packed &&
1106                 test_grep " ${SQ}git remote prune origin${SQ} to remove any old, conflicting branches" err-packed
1107         )
1108 '
1109
1110 test_expect_success 'fetching a one-level ref works' '
1111         test_commit extra &&
1112         git reset --hard HEAD^ &&
1113         git update-ref refs/foo extra &&
1114         git init one-level &&
1115         (
1116                 cd one-level &&
1117                 git fetch .. HEAD refs/foo
1118         )
1119 '
1120
1121 test_expect_success 'fetching with auto-gc does not lock up' '
1122         write_script askyesno <<-\EOF &&
1123         echo "$*" &&
1124         false
1125         EOF
1126         git clone "file://$D" auto-gc &&
1127         test_commit test2 &&
1128         (
1129                 cd auto-gc &&
1130                 git config fetch.unpackLimit 1 &&
1131                 git config gc.autoPackLimit 1 &&
1132                 git config gc.autoDetach false &&
1133                 GIT_ASK_YESNO="$D/askyesno" git fetch --verbose >fetch.out 2>&1 &&
1134                 test_grep "Auto packing the repository" fetch.out &&
1135                 ! grep "Should I try again" fetch.out
1136         )
1137 '
1138
1139 for section in fetch transfer
1140 do
1141         test_expect_success "$section.hideRefs affects connectivity check" '
1142                 GIT_TRACE="$PWD"/trace git -c $section.hideRefs=refs -c \
1143                         $section.hideRefs="!refs/tags/" fetch &&
1144                 grep "git rev-list .*--exclude-hidden=fetch" trace
1145         '
1146 done
1147
1148 test_expect_success 'prepare source branch' '
1149         echo one >onebranch &&
1150         git checkout --orphan onebranch &&
1151         git rm --cached -r . &&
1152         git add onebranch &&
1153         git commit -m onebranch &&
1154         git rev-list --objects onebranch -- >actual &&
1155         # 3 objects should be created, at least ...
1156         test 3 -le $(wc -l <actual)
1157 '
1158
1159 validate_store_type () {
1160         git -C dest count-objects -v >actual &&
1161         case "$store_type" in
1162         packed)
1163                 grep "^count: 0$" actual ;;
1164         loose)
1165                 grep "^packs: 0$" actual ;;
1166         esac || {
1167                 echo "store_type is $store_type"
1168                 cat actual
1169                 false
1170         }
1171 }
1172
1173 test_unpack_limit () {
1174         store_type=$1
1175
1176         case "$store_type" in
1177         packed) fetch_limit=1 transfer_limit=10000 ;;
1178         loose) fetch_limit=10000 transfer_limit=1 ;;
1179         esac
1180
1181         test_expect_success "fetch trumps transfer limit" '
1182                 rm -fr dest &&
1183                 git --bare init dest &&
1184                 git -C dest config fetch.unpacklimit $fetch_limit &&
1185                 git -C dest config transfer.unpacklimit $transfer_limit &&
1186                 git -C dest fetch .. onebranch &&
1187                 validate_store_type
1188         '
1189 }
1190
1191 test_unpack_limit packed
1192 test_unpack_limit loose
1193
1194 setup_negotiation_tip () {
1195         SERVER="$1"
1196         URL="$2"
1197         USE_PROTOCOL_V2="$3"
1198
1199         rm -rf "$SERVER" client trace &&
1200         git init -b main "$SERVER" &&
1201         test_commit -C "$SERVER" alpha_1 &&
1202         test_commit -C "$SERVER" alpha_2 &&
1203         git -C "$SERVER" checkout --orphan beta &&
1204         test_commit -C "$SERVER" beta_1 &&
1205         test_commit -C "$SERVER" beta_2 &&
1206
1207         git clone "$URL" client &&
1208
1209         if test "$USE_PROTOCOL_V2" -eq 1
1210         then
1211                 git -C "$SERVER" config protocol.version 2 &&
1212                 git -C client config protocol.version 2
1213         fi &&
1214
1215         test_commit -C "$SERVER" beta_s &&
1216         git -C "$SERVER" checkout main &&
1217         test_commit -C "$SERVER" alpha_s &&
1218         git -C "$SERVER" tag -d alpha_1 alpha_2 beta_1 beta_2
1219 }
1220
1221 check_negotiation_tip () {
1222         # Ensure that {alpha,beta}_1 are sent as "have", but not {alpha_beta}_2
1223         ALPHA_1=$(git -C client rev-parse alpha_1) &&
1224         grep "fetch> have $ALPHA_1" trace &&
1225         BETA_1=$(git -C client rev-parse beta_1) &&
1226         grep "fetch> have $BETA_1" trace &&
1227         ALPHA_2=$(git -C client rev-parse alpha_2) &&
1228         ! grep "fetch> have $ALPHA_2" trace &&
1229         BETA_2=$(git -C client rev-parse beta_2) &&
1230         ! grep "fetch> have $BETA_2" trace
1231 }
1232
1233 test_expect_success '--negotiation-tip limits "have" lines sent' '
1234         setup_negotiation_tip server server 0 &&
1235         GIT_TRACE_PACKET="$(pwd)/trace" git -C client fetch \
1236                 --negotiation-tip=alpha_1 --negotiation-tip=beta_1 \
1237                 origin alpha_s beta_s &&
1238         check_negotiation_tip
1239 '
1240
1241 test_expect_success '--negotiation-tip understands globs' '
1242         setup_negotiation_tip server server 0 &&
1243         GIT_TRACE_PACKET="$(pwd)/trace" git -C client fetch \
1244                 --negotiation-tip=*_1 \
1245                 origin alpha_s beta_s &&
1246         check_negotiation_tip
1247 '
1248
1249 test_expect_success '--negotiation-tip understands abbreviated SHA-1' '
1250         setup_negotiation_tip server server 0 &&
1251         GIT_TRACE_PACKET="$(pwd)/trace" git -C client fetch \
1252                 --negotiation-tip=$(git -C client rev-parse --short alpha_1) \
1253                 --negotiation-tip=$(git -C client rev-parse --short beta_1) \
1254                 origin alpha_s beta_s &&
1255         check_negotiation_tip
1256 '
1257
1258 test_expect_success '--negotiation-tip rejects missing OIDs' '
1259         setup_negotiation_tip server server 0 &&
1260         test_must_fail git -C client fetch \
1261                 --negotiation-tip=alpha_1 \
1262                 --negotiation-tip=$(test_oid zero) \
1263                 origin alpha_s beta_s 2>err &&
1264         cat >fatal-expect <<-EOF &&
1265         fatal: the object $(test_oid zero) does not exist
1266 EOF
1267         grep fatal: err >fatal-actual &&
1268         test_cmp fatal-expect fatal-actual
1269 '
1270
1271 test_expect_success SYMLINKS 'clone does not get confused by a D/F conflict' '
1272         git init df-conflict &&
1273         (
1274                 cd df-conflict &&
1275                 ln -s .git a &&
1276                 git add a &&
1277                 test_tick &&
1278                 git commit -m symlink &&
1279                 test_commit a- &&
1280                 rm a &&
1281                 mkdir -p a/hooks &&
1282                 write_script a/hooks/post-checkout <<-EOF &&
1283                 echo WHOOPSIE >&2
1284                 echo whoopsie >"$TRASH_DIRECTORY"/whoops
1285                 EOF
1286                 git add a/hooks/post-checkout &&
1287                 test_tick &&
1288                 git commit -m post-checkout
1289         ) &&
1290         git clone df-conflict clone 2>err &&
1291         test_grep ! WHOOPS err &&
1292         test_path_is_missing whoops
1293 '
1294
1295 . "$TEST_DIRECTORY"/lib-httpd.sh
1296 start_httpd
1297
1298 test_expect_success '--negotiation-tip limits "have" lines sent with HTTP protocol v2' '
1299         setup_negotiation_tip "$HTTPD_DOCUMENT_ROOT_PATH/server" \
1300                 "$HTTPD_URL/smart/server" 1 &&
1301         GIT_TRACE_PACKET="$(pwd)/trace" git -C client fetch \
1302                 --negotiation-tip=alpha_1 --negotiation-tip=beta_1 \
1303                 origin alpha_s beta_s &&
1304         check_negotiation_tip
1305 '
1306
1307 # DO NOT add non-httpd-specific tests here, because the last part of this
1308 # test script is only executed when httpd is available and enabled.
1309
1310 test_done