Andrew's git - gitweb.git/blob

   1#!/bin/sh
   2
   3test_description='git fsck random collection of tests
   4
   5* (HEAD) B
   6* (master) A
   7'
   8
   9. ./test-lib.sh
  10
  11test_expect_success setup '
  12        git config gc.auto 0 &&
  13        git config i18n.commitencoding ISO-8859-1 &&
  14        test_commit A fileA one &&
  15        git config --unset i18n.commitencoding &&
  16        git checkout HEAD^0 &&
  17        test_commit B fileB two &&
  18        git tag -d A B &&
  19        git reflog expire --expire=now --all &&
  20        >empty
  21'
  22
  23test_expect_success 'loose objects borrowed from alternate are not missing' '
  24        mkdir another &&
  25        (
  26                cd another &&
  27                git init &&
  28                echo ../../../.git/objects >.git/objects/info/alternates &&
  29                test_commit C fileC one &&
  30                git fsck --no-dangling >../actual 2>&1
  31        ) &&
  32        test_cmp empty actual
  33'
  34
  35test_expect_success 'HEAD is part of refs, valid objects appear valid' '
  36        git fsck >actual 2>&1 &&
  37        test_cmp empty actual
  38'
  39
  40# Corruption tests follow.  Make sure to remove all traces of the
  41# specific corruption you test afterwards, lest a later test trip over
  42# it.
  43
  44test_expect_success 'setup: helpers for corruption tests' '
  45        sha1_file() {
  46                echo "$*" | sed "s#..#.git/objects/&/#"
  47        } &&
  48
  49        remove_object() {
  50                file=$(sha1_file "$*") &&
  51                test -e "$file" &&
  52                rm -f "$file"
  53        }
  54'
  55
  56test_expect_success 'object with bad sha1' '
  57        sha=$(echo blob | git hash-object -w --stdin) &&
  58        old=$(echo $sha | sed "s+^..+&/+") &&
  59        new=$(dirname $old)/ffffffffffffffffffffffffffffffffffffff &&
  60        sha="$(dirname $new)$(basename $new)" &&
  61        mv .git/objects/$old .git/objects/$new &&
  62        test_when_finished "remove_object $sha" &&
  63        git update-index --add --cacheinfo 100644 $sha foo &&
  64        test_when_finished "git read-tree -u --reset HEAD" &&
  65        tree=$(git write-tree) &&
  66        test_when_finished "remove_object $tree" &&
  67        cmt=$(echo bogus | git commit-tree $tree) &&
  68        test_when_finished "remove_object $cmt" &&
  69        git update-ref refs/heads/bogus $cmt &&
  70        test_when_finished "git update-ref -d refs/heads/bogus" &&
  71
  72        test_must_fail git fsck 2>out &&
  73        cat out &&
  74        grep "$sha.*corrupt" out
  75'
  76
  77test_expect_success 'branch pointing to non-commit' '
  78        git rev-parse HEAD^{tree} >.git/refs/heads/invalid &&
  79        test_when_finished "git update-ref -d refs/heads/invalid" &&
  80        test_must_fail git fsck 2>out &&
  81        cat out &&
  82        grep "not a commit" out
  83'
  84
  85test_expect_success 'HEAD link pointing at a funny object' '
  86        test_when_finished "mv .git/SAVED_HEAD .git/HEAD" &&
  87        mv .git/HEAD .git/SAVED_HEAD &&
  88        echo 0000000000000000000000000000000000000000 >.git/HEAD &&
  89        # avoid corrupt/broken HEAD from interfering with repo discovery
  90        test_must_fail env GIT_DIR=.git git fsck 2>out &&
  91        cat out &&
  92        grep "detached HEAD points" out
  93'
  94
  95test_expect_success 'HEAD link pointing at a funny place' '
  96        test_when_finished "mv .git/SAVED_HEAD .git/HEAD" &&
  97        mv .git/HEAD .git/SAVED_HEAD &&
  98        echo "ref: refs/funny/place" >.git/HEAD &&
  99        # avoid corrupt/broken HEAD from interfering with repo discovery
 100        test_must_fail env GIT_DIR=.git git fsck 2>out &&
 101        cat out &&
 102        grep "HEAD points to something strange" out
 103'
 104
 105test_expect_success 'email without @ is okay' '
 106        git cat-file commit HEAD >basis &&
 107        sed "s/@/AT/" basis >okay &&
 108        new=$(git hash-object -t commit -w --stdin <okay) &&
 109        test_when_finished "remove_object $new" &&
 110        git update-ref refs/heads/bogus "$new" &&
 111        test_when_finished "git update-ref -d refs/heads/bogus" &&
 112        git fsck 2>out &&
 113        cat out &&
 114        ! grep "commit $new" out
 115'
 116
 117test_expect_success 'email with embedded > is not okay' '
 118        git cat-file commit HEAD >basis &&
 119        sed "s/@[a-z]/&>/" basis >bad-email &&
 120        new=$(git hash-object -t commit -w --stdin <bad-email) &&
 121        test_when_finished "remove_object $new" &&
 122        git update-ref refs/heads/bogus "$new" &&
 123        test_when_finished "git update-ref -d refs/heads/bogus" &&
 124        test_must_fail git fsck 2>out &&
 125        cat out &&
 126        grep "error in commit $new" out
 127'
 128
 129test_expect_success 'missing < email delimiter is reported nicely' '
 130        git cat-file commit HEAD >basis &&
 131        sed "s/<//" basis >bad-email-2 &&
 132        new=$(git hash-object -t commit -w --stdin <bad-email-2) &&
 133        test_when_finished "remove_object $new" &&
 134        git update-ref refs/heads/bogus "$new" &&
 135        test_when_finished "git update-ref -d refs/heads/bogus" &&
 136        test_must_fail git fsck 2>out &&
 137        cat out &&
 138        grep "error in commit $new.* - bad name" out
 139'
 140
 141test_expect_success 'missing email is reported nicely' '
 142        git cat-file commit HEAD >basis &&
 143        sed "s/[a-z]* <[^>]*>//" basis >bad-email-3 &&
 144        new=$(git hash-object -t commit -w --stdin <bad-email-3) &&
 145        test_when_finished "remove_object $new" &&
 146        git update-ref refs/heads/bogus "$new" &&
 147        test_when_finished "git update-ref -d refs/heads/bogus" &&
 148        test_must_fail git fsck 2>out &&
 149        cat out &&
 150        grep "error in commit $new.* - missing email" out
 151'
 152
 153test_expect_success '> in name is reported' '
 154        git cat-file commit HEAD >basis &&
 155        sed "s/ </> </" basis >bad-email-4 &&
 156        new=$(git hash-object -t commit -w --stdin <bad-email-4) &&
 157        test_when_finished "remove_object $new" &&
 158        git update-ref refs/heads/bogus "$new" &&
 159        test_when_finished "git update-ref -d refs/heads/bogus" &&
 160        test_must_fail git fsck 2>out &&
 161        cat out &&
 162        grep "error in commit $new" out
 163'
 164
 165# date is 2^64 + 1
 166test_expect_success 'integer overflow in timestamps is reported' '
 167        git cat-file commit HEAD >basis &&
 168        sed "s/^\\(author .*>\\) [0-9]*/\\1 18446744073709551617/" \
 169                <basis >bad-timestamp &&
 170        new=$(git hash-object -t commit -w --stdin <bad-timestamp) &&
 171        test_when_finished "remove_object $new" &&
 172        git update-ref refs/heads/bogus "$new" &&
 173        test_when_finished "git update-ref -d refs/heads/bogus" &&
 174        test_must_fail git fsck 2>out &&
 175        cat out &&
 176        grep "error in commit $new.*integer overflow" out
 177'
 178
 179test_expect_success 'malformatted tree object' '
 180        test_when_finished "git update-ref -d refs/tags/wrong" &&
 181        test_when_finished "remove_object \$T" &&
 182        T=$(
 183                GIT_INDEX_FILE=test-index &&
 184                export GIT_INDEX_FILE &&
 185                rm -f test-index &&
 186                >x &&
 187                git add x &&
 188                T=$(git write-tree) &&
 189                (
 190                        git cat-file tree $T &&
 191                        git cat-file tree $T
 192                ) |
 193                git hash-object -w -t tree --stdin
 194        ) &&
 195        test_must_fail git fsck 2>out &&
 196        grep "error in tree .*contains duplicate file entries" out
 197'
 198
 199test_expect_success 'tag pointing to nonexistent' '
 200        cat >invalid-tag <<-\EOF &&
 201        object ffffffffffffffffffffffffffffffffffffffff
 202        type commit
 203        tag invalid
 204        tagger T A Gger <tagger@example.com> 1234567890 -0000
 205
 206        This is an invalid tag.
 207        EOF
 208
 209        tag=$(git hash-object -t tag -w --stdin <invalid-tag) &&
 210        test_when_finished "remove_object $tag" &&
 211        echo $tag >.git/refs/tags/invalid &&
 212        test_when_finished "git update-ref -d refs/tags/invalid" &&
 213        test_must_fail git fsck --tags >out &&
 214        cat out &&
 215        grep "broken link" out
 216'
 217
 218test_expect_success 'tag pointing to something else than its type' '
 219        sha=$(echo blob | git hash-object -w --stdin) &&
 220        test_when_finished "remove_object $sha" &&
 221        cat >wrong-tag <<-EOF &&
 222        object $sha
 223        type commit
 224        tag wrong
 225        tagger T A Gger <tagger@example.com> 1234567890 -0000
 226
 227        This is an invalid tag.
 228        EOF
 229
 230        tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
 231        test_when_finished "remove_object $tag" &&
 232        echo $tag >.git/refs/tags/wrong &&
 233        test_when_finished "git update-ref -d refs/tags/wrong" &&
 234        test_must_fail git fsck --tags
 235'
 236
 237test_expect_success 'tag with incorrect tag name & missing tagger' '
 238        sha=$(git rev-parse HEAD) &&
 239        cat >wrong-tag <<-EOF &&
 240        object $sha
 241        type commit
 242        tag wrong name format
 243
 244        This is an invalid tag.
 245        EOF
 246
 247        tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
 248        test_when_finished "remove_object $tag" &&
 249        echo $tag >.git/refs/tags/wrong &&
 250        test_when_finished "git update-ref -d refs/tags/wrong" &&
 251        git fsck --tags 2>out &&
 252
 253        cat >expect <<-EOF &&
 254        warning in tag $tag: badTagName: invalid '\''tag'\'' name: wrong name format
 255        warning in tag $tag: missingTaggerEntry: invalid format - expected '\''tagger'\'' line
 256        EOF
 257        test_cmp expect out
 258'
 259
 260test_expect_success 'tag with bad tagger' '
 261        sha=$(git rev-parse HEAD) &&
 262        cat >wrong-tag <<-EOF &&
 263        object $sha
 264        type commit
 265        tag not-quite-wrong
 266        tagger Bad Tagger Name
 267
 268        This is an invalid tag.
 269        EOF
 270
 271        tag=$(git hash-object --literally -t tag -w --stdin <wrong-tag) &&
 272        test_when_finished "remove_object $tag" &&
 273        echo $tag >.git/refs/tags/wrong &&
 274        test_when_finished "git update-ref -d refs/tags/wrong" &&
 275        test_must_fail git fsck --tags 2>out &&
 276        grep "error in tag .*: invalid author/committer" out
 277'
 278
 279test_expect_success 'cleaned up' '
 280        git fsck >actual 2>&1 &&
 281        test_cmp empty actual
 282'
 283
 284test_expect_success 'rev-list --verify-objects' '
 285        git rev-list --verify-objects --all >/dev/null 2>out &&
 286        test_cmp empty out
 287'
 288
 289test_expect_success 'rev-list --verify-objects with bad sha1' '
 290        sha=$(echo blob | git hash-object -w --stdin) &&
 291        old=$(echo $sha | sed "s+^..+&/+") &&
 292        new=$(dirname $old)/ffffffffffffffffffffffffffffffffffffff &&
 293        sha="$(dirname $new)$(basename $new)" &&
 294        mv .git/objects/$old .git/objects/$new &&
 295        test_when_finished "remove_object $sha" &&
 296        git update-index --add --cacheinfo 100644 $sha foo &&
 297        test_when_finished "git read-tree -u --reset HEAD" &&
 298        tree=$(git write-tree) &&
 299        test_when_finished "remove_object $tree" &&
 300        cmt=$(echo bogus | git commit-tree $tree) &&
 301        test_when_finished "remove_object $cmt" &&
 302        git update-ref refs/heads/bogus $cmt &&
 303        test_when_finished "git update-ref -d refs/heads/bogus" &&
 304
 305        test_might_fail git rev-list --verify-objects refs/heads/bogus >/dev/null 2>out &&
 306        cat out &&
 307        grep -q "error: sha1 mismatch 63ffffffffffffffffffffffffffffffffffffff" out
 308'
 309
 310test_expect_success 'force fsck to ignore double author' '
 311        git cat-file commit HEAD >basis &&
 312        sed "s/^author .*/&,&/" <basis | tr , \\n >multiple-authors &&
 313        new=$(git hash-object -t commit -w --stdin <multiple-authors) &&
 314        test_when_finished "remove_object $new" &&
 315        git update-ref refs/heads/bogus "$new" &&
 316        test_when_finished "git update-ref -d refs/heads/bogus" &&
 317        test_must_fail git fsck &&
 318        git -c fsck.multipleAuthors=ignore fsck
 319'
 320
 321_bz='\0'
 322_bz5="$_bz$_bz$_bz$_bz$_bz"
 323_bz20="$_bz5$_bz5$_bz5$_bz5"
 324
 325test_expect_success 'fsck notices blob entry pointing to null sha1' '
 326        (git init null-blob &&
 327         cd null-blob &&
 328         sha=$(printf "100644 file$_bz$_bz20" |
 329               git hash-object -w --stdin -t tree) &&
 330          git fsck 2>out &&
 331          cat out &&
 332          grep "warning.*null sha1" out
 333        )
 334'
 335
 336test_expect_success 'fsck notices submodule entry pointing to null sha1' '
 337        (git init null-commit &&
 338         cd null-commit &&
 339         sha=$(printf "160000 submodule$_bz$_bz20" |
 340               git hash-object -w --stdin -t tree) &&
 341          git fsck 2>out &&
 342          cat out &&
 343          grep "warning.*null sha1" out
 344        )
 345'
 346
 347while read name path pretty; do
 348        while read mode type; do
 349                : ${pretty:=$path}
 350                test_expect_success "fsck notices $pretty as $type" '
 351                (
 352                        git init $name-$type &&
 353                        cd $name-$type &&
 354                        echo content >file &&
 355                        git add file &&
 356                        git commit -m base &&
 357                        blob=$(git rev-parse :file) &&
 358                        tree=$(git rev-parse HEAD^{tree}) &&
 359                        value=$(eval "echo \$$type") &&
 360                        printf "$mode $type %s\t%s" "$value" "$path" >bad &&
 361                        bad_tree=$(git mktree <bad) &&
 362                        git fsck 2>out &&
 363                        cat out &&
 364                        grep "warning.*tree $bad_tree" out
 365                )'
 366        done <<-\EOF
 367        100644 blob
 368        040000 tree
 369        EOF
 370done <<-EOF
 371dot .
 372dotdot ..
 373dotgit .git
 374dotgit-case .GIT
 375dotgit-unicode .gI${u200c}T .gI{u200c}T
 376dotgit-case2 .Git
 377git-tilde1 git~1
 378dotgitdot .git.
 379dot-backslash-case .\\\\.GIT\\\\foobar
 380dotgit-case-backslash .git\\\\foobar
 381EOF
 382
 383test_expect_success 'fsck allows .Ňit' '
 384        (
 385                git init not-dotgit &&
 386                cd not-dotgit &&
 387                echo content >file &&
 388                git add file &&
 389                git commit -m base &&
 390                blob=$(git rev-parse :file) &&
 391                printf "100644 blob $blob\t.\\305\\207it" >tree &&
 392                tree=$(git mktree <tree) &&
 393                git fsck 2>err &&
 394                test_line_count = 0 err
 395        )
 396'
 397
 398# create a static test repo which is broken by omitting
 399# one particular object ($1, which is looked up via rev-parse
 400# in the new repository).
 401create_repo_missing () {
 402        rm -rf missing &&
 403        git init missing &&
 404        (
 405                cd missing &&
 406                git commit -m one --allow-empty &&
 407                mkdir subdir &&
 408                echo content >subdir/file &&
 409                git add subdir/file &&
 410                git commit -m two &&
 411                unrelated=$(echo unrelated | git hash-object --stdin -w) &&
 412                git tag -m foo tag $unrelated &&
 413                sha1=$(git rev-parse --verify "$1") &&
 414                path=$(echo $sha1 | sed 's|..|&/|') &&
 415                rm .git/objects/$path
 416        )
 417}
 418
 419test_expect_success 'fsck notices missing blob' '
 420        create_repo_missing HEAD:subdir/file &&
 421        test_must_fail git -C missing fsck
 422'
 423
 424test_expect_success 'fsck notices missing subtree' '
 425        create_repo_missing HEAD:subdir &&
 426        test_must_fail git -C missing fsck
 427'
 428
 429test_expect_success 'fsck notices missing root tree' '
 430        create_repo_missing HEAD^{tree} &&
 431        test_must_fail git -C missing fsck
 432'
 433
 434test_expect_success 'fsck notices missing parent' '
 435        create_repo_missing HEAD^ &&
 436        test_must_fail git -C missing fsck
 437'
 438
 439test_expect_success 'fsck notices missing tagged object' '
 440        create_repo_missing tag^{blob} &&
 441        test_must_fail git -C missing fsck
 442'
 443
 444test_expect_success 'fsck notices ref pointing to missing commit' '
 445        create_repo_missing HEAD &&
 446        test_must_fail git -C missing fsck
 447'
 448
 449test_expect_success 'fsck notices ref pointing to missing tag' '
 450        create_repo_missing tag &&
 451        test_must_fail git -C missing fsck
 452'
 453
 454test_expect_success 'fsck --connectivity-only' '
 455        rm -rf connectivity-only &&
 456        git init connectivity-only &&
 457        (
 458                cd connectivity-only &&
 459                touch empty &&
 460                git add empty &&
 461                test_commit empty &&
 462                empty=.git/objects/e6/9de29bb2d1d6434b8b29ae775ad8c2e48c5391 &&
 463                rm -f $empty &&
 464                echo invalid >$empty &&
 465                test_must_fail git fsck --strict &&
 466                git fsck --strict --connectivity-only &&
 467                tree=$(git rev-parse HEAD:) &&
 468                suffix=${tree#??} &&
 469                tree=.git/objects/${tree%$suffix}/$suffix &&
 470                rm -f $tree &&
 471                echo invalid >$tree &&
 472                test_must_fail git fsck --strict --connectivity-only
 473        )
 474'
 475
 476test_done