git checkout HEAD^0 &&
test_commit B fileB two &&
git tag -d A B &&
- git reflog expire --expire=now --all &&
- >empty
+ git reflog expire --expire=now --all
'
test_expect_success 'loose objects borrowed from alternate are not missing' '
test_commit C fileC one &&
git fsck --no-dangling >../actual 2>&1
) &&
- test_cmp empty actual
+ test_must_be_empty actual
'
test_expect_success 'HEAD is part of refs, valid objects appear valid' '
git fsck >actual 2>&1 &&
- test_cmp empty actual
+ test_must_be_empty actual
'
# Corruption tests follow. Make sure to remove all traces of the
grep "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 &&
+ grep "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 $ZERO_OID >.git/worktrees/other/HEAD &&
+ test_must_fail git fsck 2>out &&
+ grep "worktrees/other/HEAD: detached HEAD points" out
+'
+
+test_expect_success 'other worktree HEAD link pointing at missing object' '
+ test_when_finished "rm -rf .git/worktrees other" &&
+ git worktree add other &&
+ echo "Contents missing from repo" | git hash-object --stdin >.git/worktrees/other/HEAD &&
+ test_must_fail git fsck 2>out &&
+ grep "worktrees/other/HEAD: invalid sha1 pointer" out
+'
+
+test_expect_success 'other worktree HEAD link pointing at a funny place' '
+ test_when_finished "rm -rf .git/worktrees other" &&
+ git worktree add other &&
+ echo "ref: refs/funny/place" >.git/worktrees/other/HEAD &&
+ test_must_fail git fsck 2>out &&
+ grep "worktrees/other/HEAD points to something strange" out
+'
+
test_expect_success 'email without @ is okay' '
git cat-file commit HEAD >basis &&
sed "s/@/AT/" basis >okay &&
test_i18ngrep ! "fatal: empty filename in tree entry" out
'
+hex2oct() {
+ perl -ne 'printf "\\%03o", hex for /../g'
+}
+
+test_expect_success 'tree entry with type mismatch' '
+ test_when_finished "remove_object \$blob" &&
+ test_when_finished "remove_object \$tree" &&
+ test_when_finished "remove_object \$commit" &&
+ test_when_finished "git update-ref -d refs/heads/type_mismatch" &&
+ blob=$(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 'tag pointing to nonexistent' '
cat >invalid-tag <<-\EOF &&
object ffffffffffffffffffffffffffffffffffffffff
test_expect_success 'cleaned up' '
git fsck >actual 2>&1 &&
- test_cmp empty actual
+ test_must_be_empty actual
'
test_expect_success 'rev-list --verify-objects' '
git rev-list --verify-objects --all >/dev/null 2>out &&
- test_cmp empty out
+ test_must_be_empty out
'
test_expect_success 'rev-list --verify-objects with bad sha1' '
test_might_fail git rev-list --verify-objects refs/heads/bogus >/dev/null 2>out &&
cat out &&
- grep -q "error: sha1 mismatch 63ffffffffffffffffffffffffffffffffffffff" out
+ test_i18ngrep -q "error: sha1 mismatch 63ffffffffffffffffffffffffffffffffffffff" out
'
test_expect_success 'force fsck to ignore double author' '
remove_object $(git rev-parse julius:caesar.t) &&
test_must_fail git fsck --name-objects >out &&
tree=$(git rev-parse --verify julius:) &&
- grep "$tree (\(refs/heads/master\|HEAD\)@{[0-9]*}:" out
+ egrep "$tree \((refs/heads/master|HEAD)@\{[0-9]*\}:" 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 $hsh &&
+ test_must_fail git fsck 2>out &&
+ test_i18ngrep "checksum mismatch" out
+'
+
test_expect_success 'fsck finds problems in duplicate loose objects' '
rm -rf broken-duplicate &&
git init broken-duplicate &&
test_i18ngrep "garbage.*$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 'fsck $name notices bogus $name' '
test_must_fail git fsck bogus &&
- test_must_fail git fsck $_z40
+ test_must_fail git fsck $ZERO_OID
'
test_expect_success 'bogus head does not fallback to all heads' '
blob=$(git rev-parse :foo) &&
test_when_finished "git rm --cached foo" &&
remove_object $blob &&
- test_must_fail git fsck $_z40 >out 2>&1 &&
+ 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 &&
+ grep "bad index file" errors
+'
+
test_done
projects / thirdparty / git.git / blobdiff