| #!/bin/sh |
| |
| test_description='git fsck random collection of tests |
| |
| * (HEAD) B |
| * (main) A |
| ' |
| |
| . ./test-lib.sh |
| |
| test_expect_success setup ' |
| git config gc.auto 0 && |
| git config i18n.commitencoding ISO-8859-1 && |
| test_commit A fileA one && |
| git config --unset i18n.commitencoding && |
| git checkout HEAD^0 && |
| test_commit B fileB two && |
| git tag -d A B && |
| git reflog expire --expire=now --all |
| ' |
| |
| test_expect_success 'loose objects borrowed from alternate are not missing' ' |
| mkdir another && |
| ( |
| cd another && |
| git init && |
| echo ../../../.git/objects >.git/objects/info/alternates && |
| test_commit C fileC one && |
| git fsck --no-dangling >../actual 2>&1 |
| ) && |
| test_must_be_empty actual |
| ' |
| |
| test_expect_success 'HEAD is part of refs, valid objects appear valid' ' |
| git fsck >actual 2>&1 && |
| test_must_be_empty actual |
| ' |
| |
| # Corruption tests follow. Make sure to remove all traces of the |
| # specific corruption you test afterwards, lest a later test trip over |
| # it. |
| |
| sha1_file () { |
| git rev-parse --git-path objects/$(test_oid_to_path "$1") |
| } |
| |
| remove_object () { |
| rm "$(sha1_file "$1")" |
| } |
| |
| test_expect_success 'object with hash mismatch' ' |
| git init --bare hash-mismatch && |
| ( |
| cd hash-mismatch && |
| |
| oid=$(echo blob | git hash-object -w --stdin) && |
| oldoid=$oid && |
| old=$(test_oid_to_path "$oid") && |
| new=$(dirname $old)/$(test_oid ff_2) && |
| oid="$(dirname $new)$(basename $new)" && |
| |
| mv objects/$old objects/$new && |
| git update-index --add --cacheinfo 100644 $oid foo && |
| tree=$(git write-tree) && |
| cmt=$(echo bogus | git commit-tree $tree) && |
| git update-ref refs/heads/bogus $cmt && |
| |
| test_must_fail git fsck 2>out && |
| grep "$oldoid: hash-path mismatch, found at: .*$new" out |
| ) |
| ' |
| |
| test_expect_success 'object with hash and type mismatch' ' |
| git init --bare hash-type-mismatch && |
| ( |
| cd hash-type-mismatch && |
| |
| oid=$(echo blob | git hash-object -w --stdin -t garbage --literally) && |
| oldoid=$oid && |
| old=$(test_oid_to_path "$oid") && |
| new=$(dirname $old)/$(test_oid ff_2) && |
| oid="$(dirname $new)$(basename $new)" && |
| |
| mv objects/$old objects/$new && |
| git update-index --add --cacheinfo 100644 $oid foo && |
| tree=$(git write-tree) && |
| cmt=$(echo bogus | git commit-tree $tree) && |
| git update-ref refs/heads/bogus $cmt && |
| |
| |
| test_must_fail git fsck 2>out && |
| grep "^error: $oldoid: hash-path mismatch, found at: .*$new" out && |
| grep "^error: $oldoid: object is of unknown type '"'"'garbage'"'"'" out |
| ) |
| ' |
| |
| test_expect_success 'zlib corrupt loose object output ' ' |
| git init --bare corrupt-loose-output && |
| ( |
| cd corrupt-loose-output && |
| oid=$(git hash-object -w --stdin --literally </dev/null) && |
| oidf=objects/$(test_oid_to_path "$oid") && |
| chmod +w $oidf && |
| echo extra garbage >>$oidf && |
| |
| cat >expect.error <<-EOF && |
| error: garbage at end of loose object '\''$oid'\'' |
| error: unable to unpack contents of ./$oidf |
| error: $oid: object corrupt or missing: ./$oidf |
| EOF |
| test_must_fail git fsck 2>actual && |
| grep ^error: actual >error && |
| test_cmp expect.error error |
| ) |
| ' |
| |
| test_expect_success 'branch pointing to non-commit' ' |
| git rev-parse HEAD^{tree} >.git/refs/heads/invalid && |
| test_when_finished "git update-ref -d refs/heads/invalid" && |
| test_must_fail git fsck 2>out && |
| test_i18ngrep "not a commit" out |
| ' |
| |
| test_expect_success 'HEAD link pointing at a funny object' ' |
| test_when_finished "mv .git/SAVED_HEAD .git/HEAD" && |
| mv .git/HEAD .git/SAVED_HEAD && |
| echo $ZERO_OID >.git/HEAD && |
| # avoid corrupt/broken HEAD from interfering with repo discovery |
| test_must_fail env GIT_DIR=.git git fsck 2>out && |
| test_i18ngrep "detached HEAD points" out |
| ' |
| |
| test_expect_success 'HEAD link pointing at a funny place' ' |
| test_when_finished "mv .git/SAVED_HEAD .git/HEAD" && |
| mv .git/HEAD .git/SAVED_HEAD && |
| echo "ref: refs/funny/place" >.git/HEAD && |
| # avoid corrupt/broken HEAD from interfering with repo discovery |
| test_must_fail env GIT_DIR=.git git fsck 2>out && |
| test_i18ngrep "HEAD points to something strange" out |
| ' |
| |
| test_expect_success 'HEAD link pointing at a funny object (from different wt)' ' |
| test_when_finished "mv .git/SAVED_HEAD .git/HEAD" && |
| test_when_finished "rm -rf .git/worktrees wt" && |
| git worktree add wt && |
| mv .git/HEAD .git/SAVED_HEAD && |
| echo $ZERO_OID >.git/HEAD && |
| # avoid corrupt/broken HEAD from interfering with repo discovery |
| test_must_fail git -C wt fsck 2>out && |
| test_i18ngrep "main-worktree/HEAD: detached HEAD points" out |
| ' |
| |
| test_expect_success 'other worktree HEAD link pointing at a funny object' ' |
| test_when_finished "rm -rf .git/worktrees other" && |
| git worktree add other && |
| echo $ZERO_OID >.git/worktrees/other/HEAD && |
| test_must_fail git fsck 2>out && |
| test_i18ngrep "worktrees/other/HEAD: detached HEAD points" out |
| ' |
| |
| test_expect_success 'other worktree HEAD link pointing at missing object' ' |
| test_when_finished "rm -rf .git/worktrees other" && |
| git worktree add other && |
| echo "Contents missing from repo" | git hash-object --stdin >.git/worktrees/other/HEAD && |
| test_must_fail git fsck 2>out && |
| test_i18ngrep "worktrees/other/HEAD: invalid sha1 pointer" out |
| ' |
| |
| test_expect_success 'other worktree HEAD link pointing at a funny place' ' |
| test_when_finished "rm -rf .git/worktrees other" && |
| git worktree add other && |
| echo "ref: refs/funny/place" >.git/worktrees/other/HEAD && |
| test_must_fail git fsck 2>out && |
| test_i18ngrep "worktrees/other/HEAD points to something strange" out |
| ' |
| |
| test_expect_success 'commit with multiple signatures is okay' ' |
| git cat-file commit HEAD >basis && |
| cat >sigs <<-EOF && |
| gpgsig -----BEGIN PGP SIGNATURE----- |
| VGhpcyBpcyBub3QgcmVhbGx5IGEgc2lnbmF0dXJlLg== |
| -----END PGP SIGNATURE----- |
| gpgsig-sha256 -----BEGIN PGP SIGNATURE----- |
| VGhpcyBpcyBub3QgcmVhbGx5IGEgc2lnbmF0dXJlLg== |
| -----END PGP SIGNATURE----- |
| EOF |
| sed -e "/^committer/q" basis >okay && |
| cat sigs >>okay && |
| echo >>okay && |
| sed -e "1,/^$/d" basis >>okay && |
| cat okay && |
| new=$(git hash-object -t commit -w --stdin <okay) && |
| test_when_finished "remove_object $new" && |
| git update-ref refs/heads/bogus "$new" && |
| test_when_finished "git update-ref -d refs/heads/bogus" && |
| git fsck 2>out && |
| cat out && |
| ! grep "commit $new" out |
| ' |
| |
| test_expect_success 'email without @ is okay' ' |
| git cat-file commit HEAD >basis && |
| sed "s/@/AT/" basis >okay && |
| new=$(git hash-object -t commit -w --stdin <okay) && |
| test_when_finished "remove_object $new" && |
| git update-ref refs/heads/bogus "$new" && |
| test_when_finished "git update-ref -d refs/heads/bogus" && |
| git fsck 2>out && |
| ! grep "commit $new" out |
| ' |
| |
| test_expect_success 'email with embedded > is not okay' ' |
| git cat-file commit HEAD >basis && |
| sed "s/@[a-z]/&>/" basis >bad-email && |
| new=$(git hash-object -t commit -w --stdin <bad-email) && |
| test_when_finished "remove_object $new" && |
| git update-ref refs/heads/bogus "$new" && |
| test_when_finished "git update-ref -d refs/heads/bogus" && |
| test_must_fail git fsck 2>out && |
| test_i18ngrep "error in commit $new" out |
| ' |
| |
| test_expect_success 'missing < email delimiter is reported nicely' ' |
| git cat-file commit HEAD >basis && |
| sed "s/<//" basis >bad-email-2 && |
| new=$(git hash-object -t commit -w --stdin <bad-email-2) && |
| test_when_finished "remove_object $new" && |
| git update-ref refs/heads/bogus "$new" && |
| test_when_finished "git update-ref -d refs/heads/bogus" && |
| test_must_fail git fsck 2>out && |
| test_i18ngrep "error in commit $new.* - bad name" out |
| ' |
| |
| test_expect_success 'missing email is reported nicely' ' |
| git cat-file commit HEAD >basis && |
| sed "s/[a-z]* <[^>]*>//" basis >bad-email-3 && |
| new=$(git hash-object -t commit -w --stdin <bad-email-3) && |
| test_when_finished "remove_object $new" && |
| git update-ref refs/heads/bogus "$new" && |
| test_when_finished "git update-ref -d refs/heads/bogus" && |
| test_must_fail git fsck 2>out && |
| test_i18ngrep "error in commit $new.* - missing email" out |
| ' |
| |
| test_expect_success '> in name is reported' ' |
| git cat-file commit HEAD >basis && |
| sed "s/ </> </" basis >bad-email-4 && |
| new=$(git hash-object -t commit -w --stdin <bad-email-4) && |
| test_when_finished "remove_object $new" && |
| git update-ref refs/heads/bogus "$new" && |
| test_when_finished "git update-ref -d refs/heads/bogus" && |
| test_must_fail git fsck 2>out && |
| test_i18ngrep "error in commit $new" out |
| ' |
| |
| # date is 2^64 + 1 |
| test_expect_success 'integer overflow in timestamps is reported' ' |
| git cat-file commit HEAD >basis && |
| sed "s/^\\(author .*>\\) [0-9]*/\\1 18446744073709551617/" \ |
| <basis >bad-timestamp && |
| new=$(git hash-object -t commit -w --stdin <bad-timestamp) && |
| test_when_finished "remove_object $new" && |
| git update-ref refs/heads/bogus "$new" && |
| test_when_finished "git update-ref -d refs/heads/bogus" && |
| test_must_fail git fsck 2>out && |
| test_i18ngrep "error in commit $new.*integer overflow" out |
| ' |
| |
| test_expect_success 'commit with NUL in header' ' |
| git cat-file commit HEAD >basis && |
| sed "s/author ./author Q/" <basis | q_to_nul >commit-NUL-header && |
| new=$(git hash-object -t commit -w --stdin <commit-NUL-header) && |
| test_when_finished "remove_object $new" && |
| git update-ref refs/heads/bogus "$new" && |
| test_when_finished "git update-ref -d refs/heads/bogus" && |
| test_must_fail git fsck 2>out && |
| test_i18ngrep "error in commit $new.*unterminated header: NUL at offset" out |
| ' |
| |
| test_expect_success 'tree object with duplicate entries' ' |
| test_when_finished "for i in \$T; do remove_object \$i; done" && |
| T=$( |
| GIT_INDEX_FILE=test-index && |
| export GIT_INDEX_FILE && |
| rm -f test-index && |
| >x && |
| git add x && |
| git rev-parse :x && |
| T=$(git write-tree) && |
| echo $T && |
| ( |
| git cat-file tree $T && |
| git cat-file tree $T |
| ) | |
| git hash-object -w -t tree --stdin |
| ) && |
| test_must_fail git fsck 2>out && |
| test_i18ngrep "error in tree .*contains duplicate file entries" out |
| ' |
| |
| check_duplicate_names () { |
| expect=$1 && |
| shift && |
| names=$@ && |
| test_expect_$expect "tree object with duplicate names: $names" ' |
| test_when_finished "remove_object \$blob" && |
| test_when_finished "remove_object \$tree" && |
| test_when_finished "remove_object \$badtree" && |
| blob=$(echo blob | git hash-object -w --stdin) && |
| printf "100644 blob %s\t%s\n" $blob x.2 >tree && |
| tree=$(git mktree <tree) && |
| for name in $names |
| do |
| case "$name" in |
| */) printf "040000 tree %s\t%s\n" $tree "${name%/}" ;; |
| *) printf "100644 blob %s\t%s\n" $blob "$name" ;; |
| esac |
| done >badtree && |
| badtree=$(git mktree <badtree) && |
| test_must_fail git fsck 2>out && |
| test_i18ngrep "$badtree" out && |
| test_i18ngrep "error in tree .*contains duplicate file entries" out |
| ' |
| } |
| |
| check_duplicate_names success x x.1 x/ |
| check_duplicate_names success x x.1.2 x.1/ x/ |
| check_duplicate_names success x x.1 x.1.2 x/ |
| |
| test_expect_success 'unparseable tree object' ' |
| test_oid_cache <<-\EOF && |
| junk sha1:twenty-bytes-of-junk |
| junk sha256:twenty-bytes-of-junk-twelve-more |
| EOF |
| |
| test_when_finished "git update-ref -d refs/heads/wrong" && |
| test_when_finished "remove_object \$tree_sha1" && |
| test_when_finished "remove_object \$commit_sha1" && |
| junk=$(test_oid junk) && |
| tree_sha1=$(printf "100644 \0$junk" | git hash-object -t tree --stdin -w --literally) && |
| commit_sha1=$(git commit-tree $tree_sha1) && |
| git update-ref refs/heads/wrong $commit_sha1 && |
| test_must_fail git fsck 2>out && |
| test_i18ngrep "error: empty filename in tree entry" out && |
| test_i18ngrep "$tree_sha1" out && |
| test_i18ngrep ! "fatal: empty filename in tree entry" out |
| ' |
| |
| test_expect_success 'tree entry with type mismatch' ' |
| test_when_finished "remove_object \$blob" && |
| test_when_finished "remove_object \$tree" && |
| test_when_finished "remove_object \$commit" && |
| test_when_finished "git update-ref -d refs/heads/type_mismatch" && |
| blob=$(echo blob | git hash-object -w --stdin) && |
| blob_bin=$(echo $blob | hex2oct) && |
| tree=$( |
| printf "40000 dir\0${blob_bin}100644 file\0${blob_bin}" | |
| git hash-object -t tree --stdin -w --literally |
| ) && |
| commit=$(git commit-tree $tree) && |
| git update-ref refs/heads/type_mismatch $commit && |
| test_must_fail git fsck >out 2>&1 && |
| test_i18ngrep "is a blob, not a tree" out && |
| test_i18ngrep ! "dangling blob" out |
| ' |
| |
| test_expect_success 'tree entry with bogus mode' ' |
| test_when_finished "remove_object \$blob" && |
| test_when_finished "remove_object \$tree" && |
| blob=$(echo blob | git hash-object -w --stdin) && |
| blob_oct=$(echo $blob | hex2oct) && |
| tree=$(printf "100000 foo\0${blob_oct}" | |
| git hash-object -t tree --stdin -w --literally) && |
| git fsck 2>err && |
| cat >expect <<-EOF && |
| warning in tree $tree: badFilemode: contains bad file modes |
| EOF |
| test_cmp expect err |
| ' |
| |
| test_expect_success 'tag pointing to nonexistent' ' |
| badoid=$(test_oid deadbeef) && |
| cat >invalid-tag <<-EOF && |
| object $badoid |
| type commit |
| tag invalid |
| tagger T A Gger <tagger@example.com> 1234567890 -0000 |
| |
| This is an invalid tag. |
| EOF |
| |
| tag=$(git hash-object -t tag -w --stdin <invalid-tag) && |
| test_when_finished "remove_object $tag" && |
| echo $tag >.git/refs/tags/invalid && |
| test_when_finished "git update-ref -d refs/tags/invalid" && |
| test_must_fail git fsck --tags >out && |
| test_i18ngrep "broken link" out |
| ' |
| |
| test_expect_success 'tag pointing to something else than its type' ' |
| sha=$(echo blob | git hash-object -w --stdin) && |
| test_when_finished "remove_object $sha" && |
| cat >wrong-tag <<-EOF && |
| object $sha |
| type commit |
| tag wrong |
| tagger T A Gger <tagger@example.com> 1234567890 -0000 |
| |
| This is an invalid tag. |
| EOF |
| |
| tag=$(git hash-object -t tag -w --stdin <wrong-tag) && |
| test_when_finished "remove_object $tag" && |
| echo $tag >.git/refs/tags/wrong && |
| test_when_finished "git update-ref -d refs/tags/wrong" && |
| test_must_fail git fsck --tags |
| ' |
| |
| test_expect_success 'tag with incorrect tag name & missing tagger' ' |
| sha=$(git rev-parse HEAD) && |
| cat >wrong-tag <<-EOF && |
| object $sha |
| type commit |
| tag wrong name format |
| |
| This is an invalid tag. |
| EOF |
| |
| tag=$(git hash-object -t tag -w --stdin <wrong-tag) && |
| test_when_finished "remove_object $tag" && |
| echo $tag >.git/refs/tags/wrong && |
| test_when_finished "git update-ref -d refs/tags/wrong" && |
| git fsck --tags 2>out && |
| |
| cat >expect <<-EOF && |
| warning in tag $tag: badTagName: invalid '\''tag'\'' name: wrong name format |
| warning in tag $tag: missingTaggerEntry: invalid format - expected '\''tagger'\'' line |
| EOF |
| test_cmp expect out |
| ' |
| |
| test_expect_success 'tag with bad tagger' ' |
| sha=$(git rev-parse HEAD) && |
| cat >wrong-tag <<-EOF && |
| object $sha |
| type commit |
| tag not-quite-wrong |
| tagger Bad Tagger Name |
| |
| This is an invalid tag. |
| EOF |
| |
| tag=$(git hash-object --literally -t tag -w --stdin <wrong-tag) && |
| test_when_finished "remove_object $tag" && |
| echo $tag >.git/refs/tags/wrong && |
| test_when_finished "git update-ref -d refs/tags/wrong" && |
| test_must_fail git fsck --tags 2>out && |
| test_i18ngrep "error in tag .*: invalid author/committer" out |
| ' |
| |
| test_expect_success 'tag with NUL in header' ' |
| sha=$(git rev-parse HEAD) && |
| q_to_nul >tag-NUL-header <<-EOF && |
| object $sha |
| type commit |
| tag contains-Q-in-header |
| tagger T A Gger <tagger@example.com> 1234567890 -0000 |
| |
| This is an invalid tag. |
| EOF |
| |
| tag=$(git hash-object --literally -t tag -w --stdin <tag-NUL-header) && |
| test_when_finished "remove_object $tag" && |
| echo $tag >.git/refs/tags/wrong && |
| test_when_finished "git update-ref -d refs/tags/wrong" && |
| test_must_fail git fsck --tags 2>out && |
| test_i18ngrep "error in tag $tag.*unterminated header: NUL at offset" out |
| ' |
| |
| test_expect_success 'cleaned up' ' |
| git fsck >actual 2>&1 && |
| test_must_be_empty actual |
| ' |
| |
| test_expect_success 'rev-list --verify-objects' ' |
| git rev-list --verify-objects --all >/dev/null 2>out && |
| test_must_be_empty out |
| ' |
| |
| test_expect_success 'rev-list --verify-objects with bad sha1' ' |
| sha=$(echo blob | git hash-object -w --stdin) && |
| old=$(test_oid_to_path $sha) && |
| new=$(dirname $old)/$(test_oid ff_2) && |
| sha="$(dirname $new)$(basename $new)" && |
| mv .git/objects/$old .git/objects/$new && |
| test_when_finished "remove_object $sha" && |
| git update-index --add --cacheinfo 100644 $sha foo && |
| test_when_finished "git read-tree -u --reset HEAD" && |
| tree=$(git write-tree) && |
| test_when_finished "remove_object $tree" && |
| cmt=$(echo bogus | git commit-tree $tree) && |
| test_when_finished "remove_object $cmt" && |
| git update-ref refs/heads/bogus $cmt && |
| test_when_finished "git update-ref -d refs/heads/bogus" && |
| |
| test_might_fail git rev-list --verify-objects refs/heads/bogus >/dev/null 2>out && |
| test_i18ngrep -q "error: hash mismatch $(dirname $new)$(test_oid ff_2)" out |
| ' |
| |
| # An actual bit corruption is more likely than swapped commits, but |
| # this provides an easy way to have commits which don't match their purported |
| # hashes, but which aren't so broken we can't read them at all. |
| test_expect_success 'rev-list --verify-objects notices swapped commits' ' |
| git init swapped-commits && |
| ( |
| cd swapped-commits && |
| test_commit one && |
| test_commit two && |
| one_oid=$(git rev-parse HEAD) && |
| two_oid=$(git rev-parse HEAD^) && |
| one=.git/objects/$(test_oid_to_path $one_oid) && |
| two=.git/objects/$(test_oid_to_path $two_oid) && |
| mv $one tmp && |
| mv $two $one && |
| mv tmp $two && |
| test_must_fail git rev-list --verify-objects HEAD |
| ) |
| ' |
| |
| test_expect_success 'set up repository with commit-graph' ' |
| git init corrupt-graph && |
| ( |
| cd corrupt-graph && |
| test_commit one && |
| test_commit two && |
| git commit-graph write --reachable |
| ) |
| ' |
| |
| corrupt_graph_obj () { |
| oid=$(git -C corrupt-graph rev-parse "$1") && |
| obj=corrupt-graph/.git/objects/$(test_oid_to_path $oid) && |
| test_when_finished 'mv backup $obj' && |
| mv $obj backup && |
| echo garbage >$obj |
| } |
| |
| test_expect_success 'rev-list --verify-objects with commit graph (tip)' ' |
| corrupt_graph_obj HEAD && |
| test_must_fail git -C corrupt-graph rev-list --verify-objects HEAD |
| ' |
| |
| test_expect_success 'rev-list --verify-objects with commit graph (parent)' ' |
| corrupt_graph_obj HEAD^ && |
| test_must_fail git -C corrupt-graph rev-list --verify-objects HEAD |
| ' |
| |
| test_expect_success 'force fsck to ignore double author' ' |
| git cat-file commit HEAD >basis && |
| sed "s/^author .*/&,&/" <basis | tr , \\n >multiple-authors && |
| new=$(git hash-object -t commit -w --stdin <multiple-authors) && |
| test_when_finished "remove_object $new" && |
| git update-ref refs/heads/bogus "$new" && |
| test_when_finished "git update-ref -d refs/heads/bogus" && |
| test_must_fail git fsck && |
| git -c fsck.multipleAuthors=ignore fsck |
| ' |
| |
| _bz='\0' |
| _bzoid=$(printf $ZERO_OID | sed -e 's/00/\\0/g') |
| |
| test_expect_success 'fsck notices blob entry pointing to null sha1' ' |
| (git init null-blob && |
| cd null-blob && |
| sha=$(printf "100644 file$_bz$_bzoid" | |
| git hash-object -w --stdin -t tree) && |
| git fsck 2>out && |
| test_i18ngrep "warning.*null sha1" out |
| ) |
| ' |
| |
| test_expect_success 'fsck notices submodule entry pointing to null sha1' ' |
| (git init null-commit && |
| cd null-commit && |
| sha=$(printf "160000 submodule$_bz$_bzoid" | |
| git hash-object -w --stdin -t tree) && |
| git fsck 2>out && |
| test_i18ngrep "warning.*null sha1" out |
| ) |
| ' |
| |
| while read name path pretty; do |
| while read mode type; do |
| : ${pretty:=$path} |
| test_expect_success "fsck notices $pretty as $type" ' |
| ( |
| git init $name-$type && |
| cd $name-$type && |
| git config core.protectNTFS false && |
| echo content >file && |
| git add file && |
| git commit -m base && |
| blob=$(git rev-parse :file) && |
| tree=$(git rev-parse HEAD^{tree}) && |
| value=$(eval "echo \$$type") && |
| printf "$mode $type %s\t%s" "$value" "$path" >bad && |
| bad_tree=$(git mktree <bad) && |
| git fsck 2>out && |
| test_i18ngrep "warning.*tree $bad_tree" out |
| )' |
| done <<-\EOF |
| 100644 blob |
| 040000 tree |
| EOF |
| done <<-EOF |
| dot . |
| dotdot .. |
| dotgit .git |
| dotgit-case .GIT |
| dotgit-unicode .gI${u200c}T .gI{u200c}T |
| dotgit-case2 .Git |
| git-tilde1 git~1 |
| dotgitdot .git. |
| dot-backslash-case .\\\\.GIT\\\\foobar |
| dotgit-case-backslash .git\\\\foobar |
| EOF |
| |
| test_expect_success 'fsck allows .Ňit' ' |
| ( |
| git init not-dotgit && |
| cd not-dotgit && |
| echo content >file && |
| git add file && |
| git commit -m base && |
| blob=$(git rev-parse :file) && |
| printf "100644 blob $blob\t.\\305\\207it" >tree && |
| tree=$(git mktree <tree) && |
| git fsck 2>err && |
| test_line_count = 0 err |
| ) |
| ' |
| |
| test_expect_success 'NUL in commit' ' |
| rm -fr nul-in-commit && |
| git init nul-in-commit && |
| ( |
| cd nul-in-commit && |
| git commit --allow-empty -m "initial commitQNUL after message" && |
| git cat-file commit HEAD >original && |
| q_to_nul <original >munged && |
| git hash-object -w -t commit --stdin <munged >name && |
| git branch bad $(cat name) && |
| |
| test_must_fail git -c fsck.nulInCommit=error fsck 2>warn.1 && |
| test_i18ngrep nulInCommit warn.1 && |
| git fsck 2>warn.2 && |
| test_i18ngrep nulInCommit warn.2 |
| ) |
| ' |
| |
| # create a static test repo which is broken by omitting |
| # one particular object ($1, which is looked up via rev-parse |
| # in the new repository). |
| create_repo_missing () { |
| rm -rf missing && |
| git init missing && |
| ( |
| cd missing && |
| git commit -m one --allow-empty && |
| mkdir subdir && |
| echo content >subdir/file && |
| git add subdir/file && |
| git commit -m two && |
| unrelated=$(echo unrelated | git hash-object --stdin -w) && |
| git tag -m foo tag $unrelated && |
| sha1=$(git rev-parse --verify "$1") && |
| path=$(echo $sha1 | sed 's|..|&/|') && |
| rm .git/objects/$path |
| ) |
| } |
| |
| test_expect_success 'fsck notices missing blob' ' |
| create_repo_missing HEAD:subdir/file && |
| test_must_fail git -C missing fsck |
| ' |
| |
| test_expect_success 'fsck notices missing subtree' ' |
| create_repo_missing HEAD:subdir && |
| test_must_fail git -C missing fsck |
| ' |
| |
| test_expect_success 'fsck notices missing root tree' ' |
| create_repo_missing HEAD^{tree} && |
| test_must_fail git -C missing fsck |
| ' |
| |
| test_expect_success 'fsck notices missing parent' ' |
| create_repo_missing HEAD^ && |
| test_must_fail git -C missing fsck |
| ' |
| |
| test_expect_success 'fsck notices missing tagged object' ' |
| create_repo_missing tag^{blob} && |
| test_must_fail git -C missing fsck |
| ' |
| |
| test_expect_success 'fsck notices ref pointing to missing commit' ' |
| create_repo_missing HEAD && |
| test_must_fail git -C missing fsck |
| ' |
| |
| test_expect_success 'fsck notices ref pointing to missing tag' ' |
| create_repo_missing tag && |
| test_must_fail git -C missing fsck |
| ' |
| |
| test_expect_success 'fsck --connectivity-only' ' |
| rm -rf connectivity-only && |
| git init connectivity-only && |
| ( |
| cd connectivity-only && |
| touch empty && |
| git add empty && |
| test_commit empty && |
| |
| # Drop the index now; we want to be sure that we |
| # recursively notice the broken objects |
| # because they are reachable from refs, not because |
| # they are in the index. |
| rm -f .git/index && |
| |
| # corrupt the blob, but in a way that we can still identify |
| # its type. That lets us see that --connectivity-only is |
| # not actually looking at the contents, but leaves it |
| # free to examine the type if it chooses. |
| empty=.git/objects/$(test_oid_to_path $EMPTY_BLOB) && |
| blob=$(echo unrelated | git hash-object -w --stdin) && |
| mv -f $(sha1_file $blob) $empty && |
| |
| test_must_fail git fsck --strict && |
| git fsck --strict --connectivity-only && |
| tree=$(git rev-parse HEAD:) && |
| suffix=${tree#??} && |
| tree=.git/objects/${tree%$suffix}/$suffix && |
| rm -f $tree && |
| echo invalid >$tree && |
| test_must_fail git fsck --strict --connectivity-only |
| ) |
| ' |
| |
| test_expect_success 'fsck --connectivity-only with explicit head' ' |
| rm -rf connectivity-only && |
| git init connectivity-only && |
| ( |
| cd connectivity-only && |
| test_commit foo && |
| rm -f .git/index && |
| tree=$(git rev-parse HEAD^{tree}) && |
| remove_object $(git rev-parse HEAD:foo.t) && |
| test_must_fail git fsck --connectivity-only $tree |
| ) |
| ' |
| |
| test_expect_success 'fsck --name-objects' ' |
| rm -rf name-objects && |
| git init name-objects && |
| ( |
| cd name-objects && |
| git config core.logAllRefUpdates false && |
| test_commit julius caesar.t && |
| test_commit augustus44 && |
| test_commit caesar && |
| remove_object $(git rev-parse julius:caesar.t) && |
| tree=$(git rev-parse --verify julius:) && |
| git tag -d julius && |
| test_must_fail git fsck --name-objects >out && |
| test_i18ngrep "$tree (refs/tags/augustus44\\^:" out |
| ) |
| ' |
| |
| test_expect_success 'alternate objects are correctly blamed' ' |
| test_when_finished "rm -rf alt.git .git/objects/info/alternates" && |
| name=$(test_oid numeric) && |
| path=$(test_oid_to_path "$name") && |
| git init --bare alt.git && |
| echo "../../alt.git/objects" >.git/objects/info/alternates && |
| mkdir alt.git/objects/$(dirname $path) && |
| >alt.git/objects/$(dirname $path)/$(basename $path) && |
| test_must_fail git fsck >out 2>&1 && |
| test_i18ngrep alt.git out |
| ' |
| |
| test_expect_success 'fsck errors in packed objects' ' |
| git cat-file commit HEAD >basis && |
| sed "s/</one/" basis >one && |
| sed "s/</foo/" basis >two && |
| one=$(git hash-object -t commit -w one) && |
| two=$(git hash-object -t commit -w two) && |
| pack=$( |
| { |
| echo $one && |
| echo $two |
| } | git pack-objects .git/objects/pack/pack |
| ) && |
| test_when_finished "rm -f .git/objects/pack/pack-$pack.*" && |
| remove_object $one && |
| remove_object $two && |
| test_must_fail git fsck 2>out && |
| test_i18ngrep "error in commit $one.* - bad name" out && |
| test_i18ngrep "error in commit $two.* - bad name" out && |
| ! grep corrupt out |
| ' |
| |
| test_expect_success 'fsck fails on corrupt packfile' ' |
| hsh=$(git commit-tree -m mycommit HEAD^{tree}) && |
| pack=$(echo $hsh | git pack-objects .git/objects/pack/pack) && |
| |
| # Corrupt the first byte of the first object. (It contains 3 type bits, |
| # at least one of which is not zero, so setting the first byte to 0 is |
| # sufficient.) |
| chmod a+w .git/objects/pack/pack-$pack.pack && |
| printf "\0" | dd of=.git/objects/pack/pack-$pack.pack bs=1 conv=notrunc seek=12 && |
| |
| test_when_finished "rm -f .git/objects/pack/pack-$pack.*" && |
| remove_object $hsh && |
| test_must_fail git fsck 2>out && |
| test_i18ngrep "checksum mismatch" out |
| ' |
| |
| test_expect_success 'fsck finds problems in duplicate loose objects' ' |
| rm -rf broken-duplicate && |
| git init broken-duplicate && |
| ( |
| cd broken-duplicate && |
| test_commit duplicate && |
| # no "-d" here, so we end up with duplicates |
| git repack && |
| # now corrupt the loose copy |
| oid="$(git rev-parse HEAD)" && |
| file=$(sha1_file "$oid") && |
| rm "$file" && |
| echo broken >"$file" && |
| test_must_fail git fsck 2>err && |
| |
| cat >expect <<-EOF && |
| error: inflate: data stream error (incorrect header check) |
| error: unable to unpack header of $file |
| error: $oid: object corrupt or missing: $file |
| EOF |
| grep "^error: " err >actual && |
| test_cmp expect actual |
| ) |
| ' |
| |
| test_expect_success 'fsck detects trailing loose garbage (commit)' ' |
| git cat-file commit HEAD >basis && |
| echo bump-commit-sha1 >>basis && |
| commit=$(git hash-object -w -t commit basis) && |
| file=$(sha1_file $commit) && |
| test_when_finished "remove_object $commit" && |
| chmod +w "$file" && |
| echo garbage >>"$file" && |
| test_must_fail git fsck 2>out && |
| test_i18ngrep "garbage.*$commit" out |
| ' |
| |
| test_expect_success 'fsck detects trailing loose garbage (large blob)' ' |
| blob=$(echo trailing | git hash-object -w --stdin) && |
| file=$(sha1_file $blob) && |
| test_when_finished "remove_object $blob" && |
| chmod +w "$file" && |
| echo garbage >>"$file" && |
| test_must_fail git -c core.bigfilethreshold=5 fsck 2>out && |
| test_i18ngrep "garbage.*$blob" out |
| ' |
| |
| test_expect_success 'fsck detects truncated loose object' ' |
| # make it big enough that we know we will truncate in the data |
| # portion, not the header |
| test-tool genrandom truncate 4096 >file && |
| blob=$(git hash-object -w file) && |
| file=$(sha1_file $blob) && |
| test_when_finished "remove_object $blob" && |
| test_copy_bytes 1024 <"$file" >tmp && |
| rm "$file" && |
| mv -f tmp "$file" && |
| |
| # check both regular and streaming code paths |
| test_must_fail git fsck 2>out && |
| test_i18ngrep corrupt.*$blob out && |
| |
| test_must_fail git -c core.bigfilethreshold=128 fsck 2>out && |
| test_i18ngrep corrupt.*$blob out |
| ' |
| |
| # for each of type, we have one version which is referenced by another object |
| # (and so while unreachable, not dangling), and another variant which really is |
| # dangling. |
| test_expect_success 'create dangling-object repository' ' |
| git init dangling && |
| ( |
| cd dangling && |
| blob=$(echo not-dangling | git hash-object -w --stdin) && |
| dblob=$(echo dangling | git hash-object -w --stdin) && |
| tree=$(printf "100644 blob %s\t%s\n" $blob one | git mktree) && |
| dtree=$(printf "100644 blob %s\t%s\n" $blob two | git mktree) && |
| commit=$(git commit-tree $tree) && |
| dcommit=$(git commit-tree -p $commit $tree) && |
| |
| cat >expect <<-EOF |
| dangling blob $dblob |
| dangling commit $dcommit |
| dangling tree $dtree |
| EOF |
| ) |
| ' |
| |
| test_expect_success 'fsck notices dangling objects' ' |
| ( |
| cd dangling && |
| git fsck >actual && |
| # the output order is non-deterministic, as it comes from a hash |
| sort <actual >actual.sorted && |
| test_cmp expect actual.sorted |
| ) |
| ' |
| |
| test_expect_success 'fsck --connectivity-only notices dangling objects' ' |
| ( |
| cd dangling && |
| git fsck --connectivity-only >actual && |
| # the output order is non-deterministic, as it comes from a hash |
| sort <actual >actual.sorted && |
| test_cmp expect actual.sorted |
| ) |
| ' |
| |
| test_expect_success 'fsck $name notices bogus $name' ' |
| test_must_fail git fsck bogus && |
| test_must_fail git fsck $ZERO_OID |
| ' |
| |
| test_expect_success 'bogus head does not fallback to all heads' ' |
| # set up a case that will cause a reachability complaint |
| echo to-be-deleted >foo && |
| git add foo && |
| blob=$(git rev-parse :foo) && |
| test_when_finished "git rm --cached foo" && |
| remove_object $blob && |
| test_must_fail git fsck $ZERO_OID >out 2>&1 && |
| ! grep $blob out |
| ' |
| |
| # Corrupt the checksum on the index. |
| # Add 1 to the last byte in the SHA. |
| corrupt_index_checksum () { |
| perl -w -e ' |
| use Fcntl ":seek"; |
| open my $fh, "+<", ".git/index" or die "open: $!"; |
| binmode $fh; |
| seek $fh, -1, SEEK_END or die "seek: $!"; |
| read $fh, my $in_byte, 1 or die "read: $!"; |
| |
| $in_value = unpack("C", $in_byte); |
| $out_value = ($in_value + 1) & 255; |
| |
| $out_byte = pack("C", $out_value); |
| |
| seek $fh, -1, SEEK_END or die "seek: $!"; |
| print $fh $out_byte; |
| close $fh or die "close: $!"; |
| ' |
| } |
| |
| # Corrupt the checksum on the index and then |
| # verify that only fsck notices. |
| test_expect_success 'detect corrupt index file in fsck' ' |
| cp .git/index .git/index.backup && |
| test_when_finished "mv .git/index.backup .git/index" && |
| corrupt_index_checksum && |
| test_must_fail git fsck --cache 2>errors && |
| test_i18ngrep "bad index file" errors |
| ' |
| |
| test_expect_success 'fsck error and recovery on invalid object type' ' |
| git init --bare garbage-type && |
| ( |
| cd garbage-type && |
| |
| garbage_blob=$(git hash-object --stdin -w -t garbage --literally </dev/null) && |
| |
| cat >err.expect <<-\EOF && |
| fatal: invalid object type |
| EOF |
| test_must_fail git fsck >out 2>err && |
| grep -e "^error" -e "^fatal" err >errors && |
| test_line_count = 1 errors && |
| grep "$garbage_blob: object is of unknown type '"'"'garbage'"'"':" err |
| ) |
| ' |
| |
| test_expect_success 'fsck error on gitattributes with excessive line lengths' ' |
| blob=$(printf "pattern %02048d" 1 | git hash-object -w --stdin) && |
| test_when_finished "remove_object $blob" && |
| tree=$(printf "100644 blob %s\t%s\n" $blob .gitattributes | git mktree) && |
| test_when_finished "remove_object $tree" && |
| cat >expected <<-EOF && |
| error in blob $blob: gitattributesLineLength: .gitattributes has too long lines to parse |
| EOF |
| test_must_fail git fsck --no-dangling >actual 2>&1 && |
| test_cmp expected actual |
| ' |
| |
| test_expect_success 'fsck error on gitattributes with excessive size' ' |
| blob=$(test-tool genzeros $((100 * 1024 * 1024 + 1)) | git hash-object -w --stdin) && |
| test_when_finished "remove_object $blob" && |
| tree=$(printf "100644 blob %s\t%s\n" $blob .gitattributes | git mktree) && |
| test_when_finished "remove_object $tree" && |
| cat >expected <<-EOF && |
| error in blob $blob: gitattributesLarge: .gitattributes too large to parse |
| EOF |
| test_must_fail git fsck --no-dangling >actual 2>&1 && |
| test_cmp expected actual |
| ' |
| |
| test_done |