diff options
Diffstat (limited to 't/t5325-reverse-index.sh')
| -rwxr-xr-x | t/t5325-reverse-index.sh | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/t/t5325-reverse-index.sh b/t/t5325-reverse-index.sh new file mode 100755 index 0000000..431a603 --- /dev/null +++ b/t/t5325-reverse-index.sh @@ -0,0 +1,208 @@ +#!/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 |