Andrew's git / gitweb.git / t/t6050-replace.sh
?
t / t6050-replace.shon commit t4000: make hash size independent (8cc5ff8)
   1#!/bin/sh
   2#
   3# Copyright (c) 2008 Christian Couder
   4#
   5test_description='Tests replace refs functionality'
   6
   7. ./test-lib.sh
   8. "$TEST_DIRECTORY/lib-gpg.sh"
   9
  10add_and_commit_file ()
  11{
  12    _file="$1"
  13    _msg="$2"
  14
  15    git add $_file || return $?
  16    test_tick || return $?
  17    git commit --quiet -m "$_file: $_msg"
  18}
  19
  20commit_buffer_contains_parents ()
  21{
  22    git cat-file commit "$1" >payload &&
  23    sed -n -e '/^$/q' -e '/^parent /p' <payload >actual &&
  24    shift &&
  25    for _parent
  26    do
  27        echo "parent $_parent"
  28    done >expected &&
  29    test_cmp expected actual
  30}
  31
  32commit_peeling_shows_parents ()
  33{
  34    _parent_number=1
  35    _commit="$1"
  36    shift &&
  37    for _parent
  38    do
  39        _found=$(git rev-parse --verify $_commit^$_parent_number) || return 1
  40        test "$_found" = "$_parent" || return 1
  41        _parent_number=$(( $_parent_number + 1 ))
  42    done &&
  43    test_must_fail git rev-parse --verify $_commit^$_parent_number 2>err &&
  44    test_i18ngrep "Needed a single revision" err
  45}
  46
  47commit_has_parents ()
  48{
  49    commit_buffer_contains_parents "$@" &&
  50    commit_peeling_shows_parents "$@"
  51}
  52
  53HASH1=
  54HASH2=
  55HASH3=
  56HASH4=
  57HASH5=
  58HASH6=
  59HASH7=
  60
  61test_expect_success 'set up buggy branch' '
  62     echo "line 1" >>hello &&
  63     echo "line 2" >>hello &&
  64     echo "line 3" >>hello &&
  65     echo "line 4" >>hello &&
  66     add_and_commit_file hello "4 lines" &&
  67     HASH1=$(git rev-parse --verify HEAD) &&
  68     echo "line BUG" >>hello &&
  69     echo "line 6" >>hello &&
  70     echo "line 7" >>hello &&
  71     echo "line 8" >>hello &&
  72     add_and_commit_file hello "4 more lines with a BUG" &&
  73     HASH2=$(git rev-parse --verify HEAD) &&
  74     echo "line 9" >>hello &&
  75     echo "line 10" >>hello &&
  76     add_and_commit_file hello "2 more lines" &&
  77     HASH3=$(git rev-parse --verify HEAD) &&
  78     echo "line 11" >>hello &&
  79     add_and_commit_file hello "1 more line" &&
  80     HASH4=$(git rev-parse --verify HEAD) &&
  81     sed -e "s/BUG/5/" hello >hello.new &&
  82     mv hello.new hello &&
  83     add_and_commit_file hello "BUG fixed" &&
  84     HASH5=$(git rev-parse --verify HEAD) &&
  85     echo "line 12" >>hello &&
  86     echo "line 13" >>hello &&
  87     add_and_commit_file hello "2 more lines" &&
  88     HASH6=$(git rev-parse --verify HEAD) &&
  89     echo "line 14" >>hello &&
  90     echo "line 15" >>hello &&
  91     echo "line 16" >>hello &&
  92     add_and_commit_file hello "again 3 more lines" &&
  93     HASH7=$(git rev-parse --verify HEAD)
  94'
  95
  96test_expect_success 'replace the author' '
  97     git cat-file commit $HASH2 | grep "author A U Thor" &&
  98     R=$(git cat-file commit $HASH2 | sed -e "s/A U/O/" | git hash-object -t commit --stdin -w) &&
  99     git cat-file commit $R | grep "author O Thor" &&
 100     git update-ref refs/replace/$HASH2 $R &&
 101     git show HEAD~5 | grep "O Thor" &&
 102     git show $HASH2 | grep "O Thor"
 103'
 104
 105test_expect_success 'test --no-replace-objects option' '
 106     git cat-file commit $HASH2 | grep "author O Thor" &&
 107     git --no-replace-objects cat-file commit $HASH2 | grep "author A U Thor" &&
 108     git show $HASH2 | grep "O Thor" &&
 109     git --no-replace-objects show $HASH2 | grep "A U Thor"
 110'
 111
 112test_expect_success 'test GIT_NO_REPLACE_OBJECTS env variable' '
 113     GIT_NO_REPLACE_OBJECTS=1 git cat-file commit $HASH2 | grep "author A U Thor" &&
 114     GIT_NO_REPLACE_OBJECTS=1 git show $HASH2 | grep "A U Thor"
 115'
 116
 117test_expect_success 'test core.usereplacerefs config option' '
 118        test_config core.usereplacerefs false &&
 119        git cat-file commit $HASH2 | grep "author A U Thor" &&
 120        git show $HASH2 | grep "A U Thor"
 121'
 122
 123cat >tag.sig <<EOF
 124object $HASH2
 125type commit
 126tag mytag
 127tagger T A Gger <> 0 +0000
 128
 129EOF
 130
 131test_expect_success 'tag replaced commit' '
 132     git mktag <tag.sig >.git/refs/tags/mytag 2>message
 133'
 134
 135test_expect_success '"git fsck" works' '
 136     git fsck master >fsck_master.out &&
 137     test_i18ngrep "dangling commit $R" fsck_master.out &&
 138     test_i18ngrep "dangling tag $(cat .git/refs/tags/mytag)" fsck_master.out &&
 139     test -z "$(git fsck)"
 140'
 141
 142test_expect_success 'repack, clone and fetch work' '
 143     git repack -a -d &&
 144     git clone --no-hardlinks . clone_dir &&
 145     (
 146          cd clone_dir &&
 147          git show HEAD~5 | grep "A U Thor" &&
 148          git show $HASH2 | grep "A U Thor" &&
 149          git cat-file commit $R &&
 150          git repack -a -d &&
 151          test_must_fail git cat-file commit $R &&
 152          git fetch ../ "refs/replace/*:refs/replace/*" &&
 153          git show HEAD~5 | grep "O Thor" &&
 154          git show $HASH2 | grep "O Thor" &&
 155          git cat-file commit $R
 156     )
 157'
 158
 159test_expect_success '"git replace" listing and deleting' '
 160     test "$HASH2" = "$(git replace -l)" &&
 161     test "$HASH2" = "$(git replace)" &&
 162     aa=${HASH2%??????????????????????????????????????} &&
 163     test "$HASH2" = "$(git replace --list "$aa*")" &&
 164     test_must_fail git replace -d $R &&
 165     test_must_fail git replace --delete &&
 166     test_must_fail git replace -l -d $HASH2 &&
 167     git replace -d $HASH2 &&
 168     git show $HASH2 | grep "A U Thor" &&
 169     test -z "$(git replace -l)"
 170'
 171
 172test_expect_success '"git replace" replacing' '
 173     git replace $HASH2 $R &&
 174     git show $HASH2 | grep "O Thor" &&
 175     test_must_fail git replace $HASH2 $R &&
 176     git replace -f $HASH2 $R &&
 177     test_must_fail git replace -f &&
 178     test "$HASH2" = "$(git replace)"
 179'
 180
 181test_expect_success '"git replace" resolves sha1' '
 182     SHORTHASH2=$(git rev-parse --short=8 $HASH2) &&
 183     git replace -d $SHORTHASH2 &&
 184     git replace $SHORTHASH2 $R &&
 185     git show $HASH2 | grep "O Thor" &&
 186     test_must_fail git replace $HASH2 $R &&
 187     git replace -f $HASH2 $R &&
 188     test_must_fail git replace --force &&
 189     test "$HASH2" = "$(git replace)"
 190'
 191
 192# This creates a side branch where the bug in H2
 193# does not appear because P2 is created by applying
 194# H2 and squashing H5 into it.
 195# P3, P4 and P6 are created by cherry-picking H3, H4
 196# and H6 respectively.
 197#
 198# At this point, we should have the following:
 199#
 200#    P2--P3--P4--P6
 201#   /
 202# H1-H2-H3-H4-H5-H6-H7
 203#
 204# Then we replace H6 with P6.
 205#
 206test_expect_success 'create parallel branch without the bug' '
 207     git replace -d $HASH2 &&
 208     git show $HASH2 | grep "A U Thor" &&
 209     git checkout $HASH1 &&
 210     git cherry-pick $HASH2 &&
 211     git show $HASH5 | git apply &&
 212     git commit --amend -m "hello: 4 more lines WITHOUT the bug" hello &&
 213     PARA2=$(git rev-parse --verify HEAD) &&
 214     git cherry-pick $HASH3 &&
 215     PARA3=$(git rev-parse --verify HEAD) &&
 216     git cherry-pick $HASH4 &&
 217     PARA4=$(git rev-parse --verify HEAD) &&
 218     git cherry-pick $HASH6 &&
 219     PARA6=$(git rev-parse --verify HEAD) &&
 220     git replace $HASH6 $PARA6 &&
 221     git checkout master &&
 222     cur=$(git rev-parse --verify HEAD) &&
 223     test "$cur" = "$HASH7" &&
 224     git log --pretty=oneline | grep $PARA2 &&
 225     git remote add cloned ./clone_dir
 226'
 227
 228test_expect_success 'push to cloned repo' '
 229     git push cloned $HASH6^:refs/heads/parallel &&
 230     (
 231          cd clone_dir &&
 232          git checkout parallel &&
 233          git log --pretty=oneline | grep $PARA2
 234     )
 235'
 236
 237test_expect_success 'push branch with replacement' '
 238     git cat-file commit $PARA3 | grep "author A U Thor" &&
 239     S=$(git cat-file commit $PARA3 | sed -e "s/A U/O/" | git hash-object -t commit --stdin -w) &&
 240     git cat-file commit $S | grep "author O Thor" &&
 241     git replace $PARA3 $S &&
 242     git show $HASH6~2 | grep "O Thor" &&
 243     git show $PARA3 | grep "O Thor" &&
 244     git push cloned $HASH6^:refs/heads/parallel2 &&
 245     (
 246          cd clone_dir &&
 247          git checkout parallel2 &&
 248          git log --pretty=oneline | grep $PARA3 &&
 249          git show $PARA3 | grep "A U Thor"
 250     )
 251'
 252
 253test_expect_success 'fetch branch with replacement' '
 254     git branch tofetch $HASH6 &&
 255     (
 256          cd clone_dir &&
 257          git fetch origin refs/heads/tofetch:refs/heads/parallel3 &&
 258          git log --pretty=oneline parallel3 >output.txt &&
 259          ! grep $PARA3 output.txt &&
 260          git show $PARA3 >para3.txt &&
 261          grep "A U Thor" para3.txt &&
 262          git fetch origin "refs/replace/*:refs/replace/*" &&
 263          git log --pretty=oneline parallel3 >output.txt &&
 264          grep $PARA3 output.txt &&
 265          git show $PARA3 >para3.txt &&
 266          grep "O Thor" para3.txt
 267     )
 268'
 269
 270test_expect_success 'bisect and replacements' '
 271     git bisect start $HASH7 $HASH1 &&
 272     test "$PARA3" = "$(git rev-parse --verify HEAD)" &&
 273     git bisect reset &&
 274     GIT_NO_REPLACE_OBJECTS=1 git bisect start $HASH7 $HASH1 &&
 275     test "$HASH4" = "$(git rev-parse --verify HEAD)" &&
 276     git bisect reset &&
 277     git --no-replace-objects bisect start $HASH7 $HASH1 &&
 278     test "$HASH4" = "$(git rev-parse --verify HEAD)" &&
 279     git bisect reset
 280'
 281
 282test_expect_success 'index-pack and replacements' '
 283        git --no-replace-objects rev-list --objects HEAD |
 284        git --no-replace-objects pack-objects test- &&
 285        git index-pack test-*.pack
 286'
 287
 288test_expect_success 'not just commits' '
 289        echo replaced >file &&
 290        git add file &&
 291        REPLACED=$(git rev-parse :file) &&
 292        mv file file.replaced &&
 293
 294        echo original >file &&
 295        git add file &&
 296        ORIGINAL=$(git rev-parse :file) &&
 297        git update-ref refs/replace/$ORIGINAL $REPLACED &&
 298        mv file file.original &&
 299
 300        git checkout file &&
 301        test_cmp file.replaced file
 302'
 303
 304test_expect_success 'replaced and replacement objects must be of the same type' '
 305        test_must_fail git replace mytag $HASH1 &&
 306        test_must_fail git replace HEAD^{tree} HEAD~1 &&
 307        BLOB=$(git rev-parse :file) &&
 308        test_must_fail git replace HEAD^ $BLOB
 309'
 310
 311test_expect_success '-f option bypasses the type check' '
 312        git replace -f mytag $HASH1 &&
 313        git replace --force HEAD^{tree} HEAD~1 &&
 314        git replace -f HEAD^ $BLOB
 315'
 316
 317test_expect_success 'git cat-file --batch works on replace objects' '
 318        git replace | grep $PARA3 &&
 319        echo $PARA3 | git cat-file --batch
 320'
 321
 322test_expect_success 'test --format bogus' '
 323        test_must_fail git replace --format bogus >/dev/null 2>&1
 324'
 325
 326test_expect_success 'test --format short' '
 327        git replace --format=short >actual &&
 328        git replace >expected &&
 329        test_cmp expected actual
 330'
 331
 332test_expect_success 'test --format medium' '
 333        H1=$(git --no-replace-objects rev-parse HEAD~1) &&
 334        HT=$(git --no-replace-objects rev-parse HEAD^{tree}) &&
 335        MYTAG=$(git --no-replace-objects rev-parse mytag) &&
 336        {
 337                echo "$H1 -> $BLOB" &&
 338                echo "$BLOB -> $REPLACED" &&
 339                echo "$HT -> $H1" &&
 340                echo "$PARA3 -> $S" &&
 341                echo "$MYTAG -> $HASH1"
 342        } | sort >expected &&
 343        git replace -l --format medium | sort >actual &&
 344        test_cmp expected actual
 345'
 346
 347test_expect_success 'test --format long' '
 348        {
 349                echo "$H1 (commit) -> $BLOB (blob)" &&
 350                echo "$BLOB (blob) -> $REPLACED (blob)" &&
 351                echo "$HT (tree) -> $H1 (commit)" &&
 352                echo "$PARA3 (commit) -> $S (commit)" &&
 353                echo "$MYTAG (tag) -> $HASH1 (commit)"
 354        } | sort >expected &&
 355        git replace --format=long | sort >actual &&
 356        test_cmp expected actual
 357'
 358
 359test_expect_success 'setup fake editors' '
 360        write_script fakeeditor <<-\EOF &&
 361                sed -e "s/A U Thor/A fake Thor/" "$1" >"$1.new"
 362                mv "$1.new" "$1"
 363        EOF
 364        write_script failingfakeeditor <<-\EOF
 365                ./fakeeditor "$@"
 366                false
 367        EOF
 368'
 369
 370test_expect_success '--edit with and without already replaced object' '
 371        test_must_fail env GIT_EDITOR=./fakeeditor git replace --edit "$PARA3" &&
 372        GIT_EDITOR=./fakeeditor git replace --force --edit "$PARA3" &&
 373        git replace -l | grep "$PARA3" &&
 374        git cat-file commit "$PARA3" | grep "A fake Thor" &&
 375        git replace -d "$PARA3" &&
 376        GIT_EDITOR=./fakeeditor git replace --edit "$PARA3" &&
 377        git replace -l | grep "$PARA3" &&
 378        git cat-file commit "$PARA3" | grep "A fake Thor"
 379'
 380
 381test_expect_success '--edit and change nothing or command failed' '
 382        git replace -d "$PARA3" &&
 383        test_must_fail env GIT_EDITOR=true git replace --edit "$PARA3" &&
 384        test_must_fail env GIT_EDITOR="./failingfakeeditor" git replace --edit "$PARA3" &&
 385        GIT_EDITOR=./fakeeditor git replace --edit "$PARA3" &&
 386        git replace -l | grep "$PARA3" &&
 387        git cat-file commit "$PARA3" | grep "A fake Thor"
 388'
 389
 390test_expect_success 'replace ref cleanup' '
 391        test -n "$(git replace)" &&
 392        git replace -d $(git replace) &&
 393        test -z "$(git replace)"
 394'
 395
 396test_expect_success '--graft with and without already replaced object' '
 397        git log --oneline >log &&
 398        test_line_count = 7 log &&
 399        git replace --graft $HASH5 &&
 400        git log --oneline >log &&
 401        test_line_count = 3 log &&
 402        commit_has_parents $HASH5 &&
 403        test_must_fail git replace --graft $HASH5 $HASH4 $HASH3 &&
 404        git replace --force -g $HASH5 $HASH4 $HASH3 &&
 405        commit_has_parents $HASH5 $HASH4 $HASH3 &&
 406        git replace -d $HASH5
 407'
 408
 409test_expect_success '--graft using a tag as the new parent' '
 410        git tag new_parent $HASH5 &&
 411        git replace --graft $HASH7 new_parent &&
 412        commit_has_parents $HASH7 $HASH5 &&
 413        git replace -d $HASH7 &&
 414        git tag -a -m "annotated new parent tag" annotated_new_parent $HASH5 &&
 415        git replace --graft $HASH7 annotated_new_parent &&
 416        commit_has_parents $HASH7 $HASH5 &&
 417        git replace -d $HASH7
 418'
 419
 420test_expect_success '--graft using a tag as the replaced object' '
 421        git tag replaced_object $HASH7 &&
 422        git replace --graft replaced_object $HASH5 &&
 423        commit_has_parents $HASH7 $HASH5 &&
 424        git replace -d $HASH7 &&
 425        git tag -a -m "annotated replaced object tag" annotated_replaced_object $HASH7 &&
 426        git replace --graft annotated_replaced_object $HASH5 &&
 427        commit_has_parents $HASH7 $HASH5 &&
 428        git replace -d $HASH7
 429'
 430
 431test_expect_success GPG 'set up a signed commit' '
 432        echo "line 17" >>hello &&
 433        echo "line 18" >>hello &&
 434        git add hello &&
 435        test_tick &&
 436        git commit --quiet -S -m "hello: 2 more lines in a signed commit" &&
 437        HASH8=$(git rev-parse --verify HEAD) &&
 438        git verify-commit $HASH8
 439'
 440
 441test_expect_success GPG '--graft with a signed commit' '
 442        git cat-file commit $HASH8 >orig &&
 443        git replace --graft $HASH8 &&
 444        git cat-file commit $HASH8 >repl &&
 445        commit_has_parents $HASH8 &&
 446        test_must_fail git verify-commit $HASH8 &&
 447        sed -n -e "/^tree /p" -e "/^author /p" -e "/^committer /p" orig >expected &&
 448        echo >>expected &&
 449        sed -e "/^$/q" repl >actual &&
 450        test_cmp expected actual &&
 451        git replace -d $HASH8
 452'
 453
 454test_expect_success GPG 'set up a merge commit with a mergetag' '
 455        git reset --hard HEAD &&
 456        git checkout -b test_branch HEAD~2 &&
 457        echo "line 1 from test branch" >>hello &&
 458        echo "line 2 from test branch" >>hello &&
 459        git add hello &&
 460        test_tick &&
 461        git commit -m "hello: 2 more lines from a test branch" &&
 462        HASH9=$(git rev-parse --verify HEAD) &&
 463        git tag -s -m "tag for testing with a mergetag" test_tag HEAD &&
 464        git checkout master &&
 465        git merge -s ours test_tag &&
 466        HASH10=$(git rev-parse --verify HEAD) &&
 467        git cat-file commit $HASH10 | grep "^mergetag object"
 468'
 469
 470test_expect_success GPG '--graft on a commit with a mergetag' '
 471        test_must_fail git replace --graft $HASH10 $HASH8^1 &&
 472        git replace --graft $HASH10 $HASH8^1 $HASH9 &&
 473        git replace -d $HASH10
 474'
 475
 476test_expect_success '--convert-graft-file' '
 477        git checkout -b with-graft-file &&
 478        test_commit root2 &&
 479        git reset --hard root2^ &&
 480        test_commit root1 &&
 481        test_commit after-root1 &&
 482        test_tick &&
 483        git merge -m merge-root2 root2 &&
 484
 485        : add and convert graft file &&
 486        printf "%s\n%s %s\n\n# comment\n%s\n" \
 487                $(git rev-parse HEAD^^ HEAD^ HEAD^^ HEAD^2) \
 488                >.git/info/grafts &&
 489        git status 2>stderr &&
 490        test_i18ngrep "hint:.*grafts is deprecated" stderr &&
 491        git replace --convert-graft-file 2>stderr &&
 492        test_i18ngrep ! "hint:.*grafts is deprecated" stderr &&
 493        test_path_is_missing .git/info/grafts &&
 494
 495        : verify that the history is now "grafted" &&
 496        git rev-list HEAD >out &&
 497        test_line_count = 4 out &&
 498
 499        : create invalid graft file and verify that it is not deleted &&
 500        test_when_finished "rm -f .git/info/grafts" &&
 501        echo $EMPTY_BLOB $EMPTY_TREE >.git/info/grafts &&
 502        test_must_fail git replace --convert-graft-file 2>err &&
 503        test_i18ngrep "$EMPTY_BLOB $EMPTY_TREE" err &&
 504        test_i18ngrep "$EMPTY_BLOB $EMPTY_TREE" .git/info/grafts
 505'
 506
 507test_done