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        git fsck 2>out &&
  81        cat out &&
  82        grep "not a commit" out
  83'
  84
  85test_expect_success 'email without @ is okay' '
  86        git cat-file commit HEAD >basis &&
  87        sed "s/@/AT/" basis >okay &&
  88        new=$(git hash-object -t commit -w --stdin <okay) &&
  89        test_when_finished "remove_object $new" &&
  90        git update-ref refs/heads/bogus "$new" &&
  91        test_when_finished "git update-ref -d refs/heads/bogus" &&
  92        git fsck 2>out &&
  93        cat out &&
  94        ! grep "commit $new" out
  95'
  96
  97test_expect_success 'email with embedded > is not okay' '
  98        git cat-file commit HEAD >basis &&
  99        sed "s/@[a-z]/&>/" basis >bad-email &&
 100        new=$(git hash-object -t commit -w --stdin <bad-email) &&
 101        test_when_finished "remove_object $new" &&
 102        git update-ref refs/heads/bogus "$new" &&
 103        test_when_finished "git update-ref -d refs/heads/bogus" &&
 104        test_must_fail git fsck 2>out &&
 105        cat out &&
 106        grep "error in commit $new" out
 107'
 108
 109test_expect_success 'missing < email delimiter is reported nicely' '
 110        git cat-file commit HEAD >basis &&
 111        sed "s/<//" basis >bad-email-2 &&
 112        new=$(git hash-object -t commit -w --stdin <bad-email-2) &&
 113        test_when_finished "remove_object $new" &&
 114        git update-ref refs/heads/bogus "$new" &&
 115        test_when_finished "git update-ref -d refs/heads/bogus" &&
 116        test_must_fail git fsck 2>out &&
 117        cat out &&
 118        grep "error in commit $new.* - bad name" out
 119'
 120
 121test_expect_success 'missing email is reported nicely' '
 122        git cat-file commit HEAD >basis &&
 123        sed "s/[a-z]* <[^>]*>//" basis >bad-email-3 &&
 124        new=$(git hash-object -t commit -w --stdin <bad-email-3) &&
 125        test_when_finished "remove_object $new" &&
 126        git update-ref refs/heads/bogus "$new" &&
 127        test_when_finished "git update-ref -d refs/heads/bogus" &&
 128        test_must_fail git fsck 2>out &&
 129        cat out &&
 130        grep "error in commit $new.* - missing email" out
 131'
 132
 133test_expect_success '> in name is reported' '
 134        git cat-file commit HEAD >basis &&
 135        sed "s/ </> </" basis >bad-email-4 &&
 136        new=$(git hash-object -t commit -w --stdin <bad-email-4) &&
 137        test_when_finished "remove_object $new" &&
 138        git update-ref refs/heads/bogus "$new" &&
 139        test_when_finished "git update-ref -d refs/heads/bogus" &&
 140        test_must_fail git fsck 2>out &&
 141        cat out &&
 142        grep "error in commit $new" out
 143'
 144
 145# date is 2^64 + 1
 146test_expect_success 'integer overflow in timestamps is reported' '
 147        git cat-file commit HEAD >basis &&
 148        sed "s/^\\(author .*>\\) [0-9]*/\\1 18446744073709551617/" \
 149                <basis >bad-timestamp &&
 150        new=$(git hash-object -t commit -w --stdin <bad-timestamp) &&
 151        test_when_finished "remove_object $new" &&
 152        git update-ref refs/heads/bogus "$new" &&
 153        test_when_finished "git update-ref -d refs/heads/bogus" &&
 154        test_must_fail git fsck 2>out &&
 155        cat out &&
 156        grep "error in commit $new.*integer overflow" out
 157'
 158
 159test_expect_success 'malformatted tree object' '
 160        test_when_finished "git update-ref -d refs/tags/wrong" &&
 161        test_when_finished "remove_object \$T" &&
 162        T=$(
 163                GIT_INDEX_FILE=test-index &&
 164                export GIT_INDEX_FILE &&
 165                rm -f test-index &&
 166                >x &&
 167                git add x &&
 168                T=$(git write-tree) &&
 169                (
 170                        git cat-file tree $T &&
 171                        git cat-file tree $T
 172                ) |
 173                git hash-object -w -t tree --stdin
 174        ) &&
 175        test_must_fail git fsck 2>out &&
 176        grep "error in tree .*contains duplicate file entries" out
 177'
 178
 179test_expect_success 'tag pointing to nonexistent' '
 180        cat >invalid-tag <<-\EOF &&
 181        object ffffffffffffffffffffffffffffffffffffffff
 182        type commit
 183        tag invalid
 184        tagger T A Gger <tagger@example.com> 1234567890 -0000
 185
 186        This is an invalid tag.
 187        EOF
 188
 189        tag=$(git hash-object -t tag -w --stdin <invalid-tag) &&
 190        test_when_finished "remove_object $tag" &&
 191        echo $tag >.git/refs/tags/invalid &&
 192        test_when_finished "git update-ref -d refs/tags/invalid" &&
 193        test_must_fail git fsck --tags >out &&
 194        cat out &&
 195        grep "broken link" out
 196'
 197
 198test_expect_success 'tag pointing to something else than its type' '
 199        sha=$(echo blob | git hash-object -w --stdin) &&
 200        test_when_finished "remove_object $sha" &&
 201        cat >wrong-tag <<-EOF &&
 202        object $sha
 203        type commit
 204        tag wrong
 205        tagger T A Gger <tagger@example.com> 1234567890 -0000
 206
 207        This is an invalid tag.
 208        EOF
 209
 210        tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
 211        test_when_finished "remove_object $tag" &&
 212        echo $tag >.git/refs/tags/wrong &&
 213        test_when_finished "git update-ref -d refs/tags/wrong" &&
 214        test_must_fail git fsck --tags
 215'
 216
 217test_expect_success 'tag with incorrect tag name & missing tagger' '
 218        sha=$(git rev-parse HEAD) &&
 219        cat >wrong-tag <<-EOF &&
 220        object $sha
 221        type commit
 222        tag wrong name format
 223
 224        This is an invalid tag.
 225        EOF
 226
 227        tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
 228        test_when_finished "remove_object $tag" &&
 229        echo $tag >.git/refs/tags/wrong &&
 230        test_when_finished "git update-ref -d refs/tags/wrong" &&
 231        git fsck --tags 2>out &&
 232        grep "invalid .tag. name" out &&
 233        grep "expected .tagger. line" out
 234'
 235
 236test_expect_success 'tag with bad tagger' '
 237        sha=$(git rev-parse HEAD) &&
 238        cat >wrong-tag <<-EOF &&
 239        object $sha
 240        type commit
 241        tag not-quite-wrong
 242        tagger Bad Tagger Name
 243
 244        This is an invalid tag.
 245        EOF
 246
 247        tag=$(git hash-object --literally -t tag -w --stdin <wrong-tag) &&
 248        test_when_finished "remove_object $tag" &&
 249        echo $tag >.git/refs/tags/wrong &&
 250        test_when_finished "git update-ref -d refs/tags/wrong" &&
 251        test_must_fail git fsck --tags 2>out &&
 252        grep "error in tag .*: invalid author/committer" out
 253'
 254
 255test_expect_success 'cleaned up' '
 256        git fsck >actual 2>&1 &&
 257        test_cmp empty actual
 258'
 259
 260test_expect_success 'rev-list --verify-objects' '
 261        git rev-list --verify-objects --all >/dev/null 2>out &&
 262        test_cmp empty out
 263'
 264
 265test_expect_success 'rev-list --verify-objects with bad sha1' '
 266        sha=$(echo blob | git hash-object -w --stdin) &&
 267        old=$(echo $sha | sed "s+^..+&/+") &&
 268        new=$(dirname $old)/ffffffffffffffffffffffffffffffffffffff &&
 269        sha="$(dirname $new)$(basename $new)" &&
 270        mv .git/objects/$old .git/objects/$new &&
 271        test_when_finished "remove_object $sha" &&
 272        git update-index --add --cacheinfo 100644 $sha foo &&
 273        test_when_finished "git read-tree -u --reset HEAD" &&
 274        tree=$(git write-tree) &&
 275        test_when_finished "remove_object $tree" &&
 276        cmt=$(echo bogus | git commit-tree $tree) &&
 277        test_when_finished "remove_object $cmt" &&
 278        git update-ref refs/heads/bogus $cmt &&
 279        test_when_finished "git update-ref -d refs/heads/bogus" &&
 280
 281        test_might_fail git rev-list --verify-objects refs/heads/bogus >/dev/null 2>out &&
 282        cat out &&
 283        grep -q "error: sha1 mismatch 63ffffffffffffffffffffffffffffffffffffff" out
 284'
 285
 286_bz='\0'
 287_bz5="$_bz$_bz$_bz$_bz$_bz"
 288_bz20="$_bz5$_bz5$_bz5$_bz5"
 289
 290test_expect_success 'fsck notices blob entry pointing to null sha1' '
 291        (git init null-blob &&
 292         cd null-blob &&
 293         sha=$(printf "100644 file$_bz$_bz20" |
 294               git hash-object -w --stdin -t tree) &&
 295          git fsck 2>out &&
 296          cat out &&
 297          grep "warning.*null sha1" out
 298        )
 299'
 300
 301test_expect_success 'fsck notices submodule entry pointing to null sha1' '
 302        (git init null-commit &&
 303         cd null-commit &&
 304         sha=$(printf "160000 submodule$_bz$_bz20" |
 305               git hash-object -w --stdin -t tree) &&
 306          git fsck 2>out &&
 307          cat out &&
 308          grep "warning.*null sha1" out
 309        )
 310'
 311
 312while read name path pretty; do
 313        while read mode type; do
 314                : ${pretty:=$path}
 315                test_expect_success "fsck notices $pretty as $type" '
 316                (
 317                        git init $name-$type &&
 318                        cd $name-$type &&
 319                        echo content >file &&
 320                        git add file &&
 321                        git commit -m base &&
 322                        blob=$(git rev-parse :file) &&
 323                        tree=$(git rev-parse HEAD^{tree}) &&
 324                        value=$(eval "echo \$$type") &&
 325                        printf "$mode $type %s\t%s" "$value" "$path" >bad &&
 326                        bad_tree=$(git mktree <bad) &&
 327                        git fsck 2>out &&
 328                        cat out &&
 329                        grep "warning.*tree $bad_tree" out
 330                )'
 331        done <<-\EOF
 332        100644 blob
 333        040000 tree
 334        EOF
 335done <<-EOF
 336dot .
 337dotdot ..
 338dotgit .git
 339dotgit-case .GIT
 340dotgit-unicode .gI${u200c}T .gI{u200c}T
 341dotgit-case2 .Git
 342git-tilde1 git~1
 343dotgitdot .git.
 344dot-backslash-case .\\\\.GIT\\\\foobar
 345dotgit-case-backslash .git\\\\foobar
 346EOF
 347
 348test_expect_success 'fsck allows .Ňit' '
 349        (
 350                git init not-dotgit &&
 351                cd not-dotgit &&
 352                echo content >file &&
 353                git add file &&
 354                git commit -m base &&
 355                blob=$(git rev-parse :file) &&
 356                printf "100644 blob $blob\t.\\305\\207it" >tree &&
 357                tree=$(git mktree <tree) &&
 358                git fsck 2>err &&
 359                test_line_count = 0 err
 360        )
 361'
 362
 363# create a static test repo which is broken by omitting
 364# one particular object ($1, which is looked up via rev-parse
 365# in the new repository).
 366create_repo_missing () {
 367        rm -rf missing &&
 368        git init missing &&
 369        (
 370                cd missing &&
 371                git commit -m one --allow-empty &&
 372                mkdir subdir &&
 373                echo content >subdir/file &&
 374                git add subdir/file &&
 375                git commit -m two &&
 376                unrelated=$(echo unrelated | git hash-object --stdin -w) &&
 377                git tag -m foo tag $unrelated &&
 378                sha1=$(git rev-parse --verify "$1") &&
 379                path=$(echo $sha1 | sed 's|..|&/|') &&
 380                rm .git/objects/$path
 381        )
 382}
 383
 384test_expect_success 'fsck notices missing blob' '
 385        create_repo_missing HEAD:subdir/file &&
 386        test_must_fail git -C missing fsck
 387'
 388
 389test_expect_success 'fsck notices missing subtree' '
 390        create_repo_missing HEAD:subdir &&
 391        test_must_fail git -C missing fsck
 392'
 393
 394test_expect_success 'fsck notices missing root tree' '
 395        create_repo_missing HEAD^{tree} &&
 396        test_must_fail git -C missing fsck
 397'
 398
 399test_expect_success 'fsck notices missing parent' '
 400        create_repo_missing HEAD^ &&
 401        test_must_fail git -C missing fsck
 402'
 403
 404test_expect_success 'fsck notices missing tagged object' '
 405        create_repo_missing tag^{blob} &&
 406        test_must_fail git -C missing fsck
 407'
 408
 409test_expect_success 'fsck notices ref pointing to missing commit' '
 410        create_repo_missing HEAD &&
 411        test_must_fail git -C missing fsck
 412'
 413
 414test_expect_success 'fsck notices ref pointing to missing tag' '
 415        create_repo_missing tag &&
 416        test_must_fail git -C missing fsck
 417'
 418
 419test_done