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#!/bin/sh
test_description='on-disk reverse index'
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
# The below tests want control over the 'pack.writeReverseIndex' setting
# themselves to assert various combinations of it with other options.
sane_unset GIT_TEST_NO_WRITE_REV_INDEX
packdir=.git/objects/pack
test_expect_success 'setup' '
test_commit base &&
test_config pack.writeReverseIndex false &&
pack=$(git pack-objects --all $packdir/pack) &&
rev=$packdir/pack-$pack.rev &&
test_path_is_missing $rev
'
test_index_pack () {
rm -f $rev &&
conf=$1 &&
shift &&
# remove the index since Windows won't overwrite an existing file
rm $packdir/pack-$pack.idx &&
git -c pack.writeReverseIndex=$conf index-pack "$@" \
$packdir/pack-$pack.pack
}
test_expect_success 'index-pack with pack.writeReverseIndex' '
test_index_pack "" &&
test_path_is_missing $rev &&
test_index_pack false &&
test_path_is_missing $rev &&
test_index_pack true &&
test_path_is_file $rev
'
test_expect_success 'index-pack with --[no-]rev-index' '
for conf in "" true false
do
test_index_pack "$conf" --rev-index &&
test_path_exists $rev &&
test_index_pack "$conf" --no-rev-index &&
test_path_is_missing $rev || return 1
done
'
test_expect_success 'index-pack can verify reverse indexes' '
test_when_finished "rm -f $rev" &&
test_index_pack true &&
test_path_is_file $rev &&
git index-pack --rev-index --verify $packdir/pack-$pack.pack &&
# Intentionally corrupt the reverse index.
chmod u+w $rev &&
printf "xxxx" | dd of=$rev bs=1 count=4 conv=notrunc &&
test_must_fail git index-pack --rev-index --verify \
$packdir/pack-$pack.pack 2>err &&
grep "validation error" err
'
test_expect_success 'index-pack infers reverse index name with -o' '
git index-pack --rev-index -o other.idx $packdir/pack-$pack.pack &&
test_path_is_file other.idx &&
test_path_is_file other.rev
'
test_expect_success 'pack-objects respects pack.writeReverseIndex' '
test_when_finished "rm -fr pack-1-*" &&
git -c pack.writeReverseIndex= pack-objects --all pack-1 &&
test_path_is_missing pack-1-*.rev &&
git -c pack.writeReverseIndex=false pack-objects --all pack-1 &&
test_path_is_missing pack-1-*.rev &&
git -c pack.writeReverseIndex=true pack-objects --all pack-1 &&
test_path_is_file pack-1-*.rev
'
test_expect_success 'reverse index is not generated when available on disk' '
test_index_pack true &&
test_path_is_file $rev &&
git rev-parse HEAD >tip &&
GIT_TEST_REV_INDEX_DIE_IN_MEMORY=1 git cat-file \
--batch-check="%(objectsize:disk)" <tip
'
test_expect_success 'reverse index is ignored when pack.readReverseIndex is false' '
test_index_pack true &&
test_path_is_file $rev &&
test_config pack.readReverseIndex false &&
git rev-parse HEAD >tip &&
GIT_TEST_REV_INDEX_DIE_ON_DISK=1 git cat-file \
--batch-check="%(objectsize:disk)" <tip
'
test_expect_success 'revindex in-memory vs on-disk' '
git init repo &&
test_when_finished "rm -fr repo" &&
(
cd repo &&
test_commit commit &&
git rev-list --objects --no-object-names --all >objects &&
git -c pack.writeReverseIndex=false repack -ad &&
test_path_is_missing $packdir/pack-*.rev &&
git cat-file --batch-check="%(objectsize:disk) %(objectname)" \
<objects >in-core &&
git -c pack.writeReverseIndex=true repack -ad &&
test_path_is_file $packdir/pack-*.rev &&
git cat-file --batch-check="%(objectsize:disk) %(objectname)" \
<objects >on-disk &&
test_cmp on-disk in-core
)
'
test_expect_success 'fsck succeeds on good rev-index' '
test_when_finished rm -fr repo &&
git init repo &&
(
cd repo &&
test_commit commit &&
git -c pack.writeReverseIndex=true repack -ad &&
git fsck 2>err &&
test_must_be_empty err
)
'
test_expect_success 'set up rev-index corruption tests' '
git init corrupt &&
(
cd corrupt &&
test_commit commit &&
git -c pack.writeReverseIndex=true repack -ad &&
revfile=$(ls .git/objects/pack/pack-*.rev) &&
chmod a+w $revfile &&
cp $revfile $revfile.bak
)
'
corrupt_rev_and_verify () {
(
pos="$1" &&
value="$2" &&
error="$3" &&
cd corrupt &&
revfile=$(ls .git/objects/pack/pack-*.rev) &&
# Reset to original rev-file.
cp $revfile.bak $revfile &&
printf "$value" | dd of=$revfile bs=1 seek="$pos" conv=notrunc &&
test_must_fail git fsck 2>err &&
grep "$error" err
)
}
test_expect_success 'fsck catches invalid checksum' '
revfile=$(ls corrupt/.git/objects/pack/pack-*.rev) &&
orig_size=$(wc -c <$revfile) &&
hashpos=$((orig_size - 10)) &&
corrupt_rev_and_verify $hashpos bogus \
"invalid checksum"
'
test_expect_success 'fsck catches invalid row position' '
corrupt_rev_and_verify 14 "\07" \
"invalid rev-index position"
'
test_expect_success 'fsck catches invalid header: magic number' '
corrupt_rev_and_verify 1 "\07" \
"reverse-index file .* has unknown signature"
'
test_expect_success 'fsck catches invalid header: version' '
corrupt_rev_and_verify 7 "\02" \
"reverse-index file .* has unsupported version"
'
test_expect_success 'fsck catches invalid header: hash function' '
corrupt_rev_and_verify 11 "\03" \
"reverse-index file .* has unsupported hash id"
'
test_done
|
