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351 lines
9.9 KiB
351 lines
9.9 KiB
#!/bin/sh |
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test_description='multi-pack-indexes' |
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. ./test-lib.sh |
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objdir=.git/objects |
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midx_read_expect () { |
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NUM_PACKS=$1 |
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NUM_OBJECTS=$2 |
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NUM_CHUNKS=$3 |
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OBJECT_DIR=$4 |
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EXTRA_CHUNKS="$5" |
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{ |
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cat <<-EOF && |
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header: 4d494458 1 $NUM_CHUNKS $NUM_PACKS |
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chunks: pack-names oid-fanout oid-lookup object-offsets$EXTRA_CHUNKS |
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num_objects: $NUM_OBJECTS |
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packs: |
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EOF |
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if test $NUM_PACKS -ge 1 |
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then |
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ls $OBJECT_DIR/pack/ | grep idx | sort |
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fi && |
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printf "object-dir: $OBJECT_DIR\n" |
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} >expect && |
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test-tool read-midx $OBJECT_DIR >actual && |
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test_cmp expect actual |
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} |
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test_expect_success 'write midx with no packs' ' |
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test_when_finished rm -f pack/multi-pack-index && |
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git multi-pack-index --object-dir=. write && |
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midx_read_expect 0 0 4 . |
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' |
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generate_objects () { |
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i=$1 |
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iii=$(printf '%03i' $i) |
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{ |
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test-tool genrandom "bar" 200 && |
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test-tool genrandom "baz $iii" 50 |
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} >wide_delta_$iii && |
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{ |
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test-tool genrandom "foo"$i 100 && |
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test-tool genrandom "foo"$(( $i + 1 )) 100 && |
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test-tool genrandom "foo"$(( $i + 2 )) 100 |
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} >deep_delta_$iii && |
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{ |
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echo $iii && |
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test-tool genrandom "$iii" 8192 |
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} >file_$iii && |
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git update-index --add file_$iii deep_delta_$iii wide_delta_$iii |
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} |
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commit_and_list_objects () { |
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{ |
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echo 101 && |
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test-tool genrandom 100 8192; |
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} >file_101 && |
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git update-index --add file_101 && |
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tree=$(git write-tree) && |
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commit=$(git commit-tree $tree -p HEAD</dev/null) && |
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{ |
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echo $tree && |
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git ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\) .*/\\1/" |
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} >obj-list && |
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git reset --hard $commit |
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} |
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test_expect_success 'create objects' ' |
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test_commit initial && |
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for i in $(test_seq 1 5) |
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do |
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generate_objects $i |
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done && |
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commit_and_list_objects |
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' |
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test_expect_success 'write midx with one v1 pack' ' |
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pack=$(git pack-objects --index-version=1 $objdir/pack/test <obj-list) && |
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test_when_finished rm $objdir/pack/test-$pack.pack \ |
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$objdir/pack/test-$pack.idx $objdir/pack/multi-pack-index && |
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git multi-pack-index --object-dir=$objdir write && |
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midx_read_expect 1 18 4 $objdir |
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' |
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midx_git_two_modes () { |
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if [ "$2" = "sorted" ] |
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then |
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git -c core.multiPackIndex=false $1 | sort >expect && |
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git -c core.multiPackIndex=true $1 | sort >actual |
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else |
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git -c core.multiPackIndex=false $1 >expect && |
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git -c core.multiPackIndex=true $1 >actual |
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fi && |
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test_cmp expect actual |
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} |
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compare_results_with_midx () { |
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MSG=$1 |
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test_expect_success "check normal git operations: $MSG" ' |
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midx_git_two_modes "rev-list --objects --all" && |
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midx_git_two_modes "log --raw" && |
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midx_git_two_modes "count-objects --verbose" && |
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midx_git_two_modes "cat-file --batch-all-objects --buffer --batch-check" && |
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midx_git_two_modes "cat-file --batch-all-objects --buffer --batch-check --unsorted" sorted |
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' |
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} |
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test_expect_success 'write midx with one v2 pack' ' |
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git pack-objects --index-version=2,0x40 $objdir/pack/test <obj-list && |
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git multi-pack-index --object-dir=$objdir write && |
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midx_read_expect 1 18 4 $objdir |
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' |
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compare_results_with_midx "one v2 pack" |
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test_expect_success 'add more objects' ' |
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for i in $(test_seq 6 10) |
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do |
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generate_objects $i |
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done && |
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commit_and_list_objects |
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' |
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test_expect_success 'write midx with two packs' ' |
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git pack-objects --index-version=1 $objdir/pack/test-2 <obj-list && |
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git multi-pack-index --object-dir=$objdir write && |
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midx_read_expect 2 34 4 $objdir |
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' |
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compare_results_with_midx "two packs" |
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test_expect_success 'add more packs' ' |
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for j in $(test_seq 11 20) |
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do |
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generate_objects $j && |
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commit_and_list_objects && |
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git pack-objects --index-version=2 $objdir/pack/test-pack <obj-list |
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done |
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' |
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compare_results_with_midx "mixed mode (two packs + extra)" |
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test_expect_success 'write midx with twelve packs' ' |
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git multi-pack-index --object-dir=$objdir write && |
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midx_read_expect 12 74 4 $objdir |
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' |
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compare_results_with_midx "twelve packs" |
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test_expect_success 'verify multi-pack-index success' ' |
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git multi-pack-index verify --object-dir=$objdir |
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' |
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# usage: corrupt_midx_and_verify <pos> <data> <objdir> <string> |
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corrupt_midx_and_verify() { |
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POS=$1 && |
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DATA="${2:-\0}" && |
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OBJDIR=$3 && |
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GREPSTR="$4" && |
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COMMAND="$5" && |
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if test -z "$COMMAND" |
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then |
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COMMAND="git multi-pack-index verify --object-dir=$OBJDIR" |
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fi && |
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FILE=$OBJDIR/pack/multi-pack-index && |
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chmod a+w $FILE && |
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test_when_finished mv midx-backup $FILE && |
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cp $FILE midx-backup && |
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printf "$DATA" | dd of="$FILE" bs=1 seek="$POS" conv=notrunc && |
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test_must_fail $COMMAND 2>test_err && |
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grep -v "^+" test_err >err && |
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test_i18ngrep "$GREPSTR" err |
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} |
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test_expect_success 'verify bad signature' ' |
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corrupt_midx_and_verify 0 "\00" $objdir \ |
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"multi-pack-index signature" |
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' |
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HASH_LEN=20 |
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NUM_OBJECTS=74 |
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MIDX_BYTE_VERSION=4 |
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MIDX_BYTE_OID_VERSION=5 |
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MIDX_BYTE_CHUNK_COUNT=6 |
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MIDX_HEADER_SIZE=12 |
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MIDX_BYTE_CHUNK_ID=$MIDX_HEADER_SIZE |
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MIDX_BYTE_CHUNK_OFFSET=$(($MIDX_HEADER_SIZE + 4)) |
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MIDX_NUM_CHUNKS=5 |
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MIDX_CHUNK_LOOKUP_WIDTH=12 |
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MIDX_OFFSET_PACKNAMES=$(($MIDX_HEADER_SIZE + \ |
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$MIDX_NUM_CHUNKS * $MIDX_CHUNK_LOOKUP_WIDTH)) |
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MIDX_BYTE_PACKNAME_ORDER=$(($MIDX_OFFSET_PACKNAMES + 2)) |
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MIDX_OFFSET_OID_FANOUT=$(($MIDX_OFFSET_PACKNAMES + 652)) |
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MIDX_OID_FANOUT_WIDTH=4 |
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MIDX_BYTE_OID_FANOUT_ORDER=$((MIDX_OFFSET_OID_FANOUT + 250 * $MIDX_OID_FANOUT_WIDTH + 1)) |
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MIDX_OFFSET_OID_LOOKUP=$(($MIDX_OFFSET_OID_FANOUT + 256 * $MIDX_OID_FANOUT_WIDTH)) |
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MIDX_BYTE_OID_LOOKUP=$(($MIDX_OFFSET_OID_LOOKUP + 16 * $HASH_LEN)) |
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MIDX_OFFSET_OBJECT_OFFSETS=$(($MIDX_OFFSET_OID_LOOKUP + $NUM_OBJECTS * $HASH_LEN)) |
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MIDX_OFFSET_WIDTH=8 |
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MIDX_BYTE_PACK_INT_ID=$(($MIDX_OFFSET_OBJECT_OFFSETS + 16 * $MIDX_OFFSET_WIDTH + 2)) |
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MIDX_BYTE_OFFSET=$(($MIDX_OFFSET_OBJECT_OFFSETS + 16 * $MIDX_OFFSET_WIDTH + 6)) |
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test_expect_success 'verify bad version' ' |
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corrupt_midx_and_verify $MIDX_BYTE_VERSION "\00" $objdir \ |
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"multi-pack-index version" |
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' |
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test_expect_success 'verify bad OID version' ' |
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corrupt_midx_and_verify $MIDX_BYTE_OID_VERSION "\02" $objdir \ |
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"hash version" |
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' |
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test_expect_success 'verify truncated chunk count' ' |
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corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\01" $objdir \ |
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"missing required" |
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' |
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test_expect_success 'verify extended chunk count' ' |
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corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\07" $objdir \ |
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"terminating multi-pack-index chunk id appears earlier than expected" |
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' |
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test_expect_success 'verify missing required chunk' ' |
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corrupt_midx_and_verify $MIDX_BYTE_CHUNK_ID "\01" $objdir \ |
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"missing required" |
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' |
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test_expect_success 'verify invalid chunk offset' ' |
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corrupt_midx_and_verify $MIDX_BYTE_CHUNK_OFFSET "\01" $objdir \ |
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"invalid chunk offset (too large)" |
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' |
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test_expect_success 'verify packnames out of order' ' |
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corrupt_midx_and_verify $MIDX_BYTE_PACKNAME_ORDER "z" $objdir \ |
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"pack names out of order" |
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' |
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test_expect_success 'verify packnames out of order' ' |
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corrupt_midx_and_verify $MIDX_BYTE_PACKNAME_ORDER "a" $objdir \ |
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"failed to load pack" |
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' |
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test_expect_success 'verify oid fanout out of order' ' |
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corrupt_midx_and_verify $MIDX_BYTE_OID_FANOUT_ORDER "\01" $objdir \ |
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"oid fanout out of order" |
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' |
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test_expect_success 'verify oid lookup out of order' ' |
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corrupt_midx_and_verify $MIDX_BYTE_OID_LOOKUP "\00" $objdir \ |
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"oid lookup out of order" |
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' |
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test_expect_success 'verify incorrect pack-int-id' ' |
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corrupt_midx_and_verify $MIDX_BYTE_PACK_INT_ID "\07" $objdir \ |
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"bad pack-int-id" |
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' |
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test_expect_success 'verify incorrect offset' ' |
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corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\07" $objdir \ |
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"incorrect object offset" |
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' |
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test_expect_success 'git-fsck incorrect offset' ' |
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corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\07" $objdir \ |
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"incorrect object offset" \ |
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"git -c core.multipackindex=true fsck" |
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' |
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test_expect_success 'repack removes multi-pack-index' ' |
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test_path_is_file $objdir/pack/multi-pack-index && |
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GIT_TEST_MULTI_PACK_INDEX=0 git repack -adf && |
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test_path_is_missing $objdir/pack/multi-pack-index |
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' |
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compare_results_with_midx "after repack" |
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test_expect_success 'multi-pack-index and pack-bitmap' ' |
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git -c repack.writeBitmaps=true repack -ad && |
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git multi-pack-index write && |
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git rev-list --test-bitmap HEAD |
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' |
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test_expect_success 'multi-pack-index and alternates' ' |
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git init --bare alt.git && |
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echo $(pwd)/alt.git/objects >.git/objects/info/alternates && |
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echo content1 >file1 && |
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altblob=$(GIT_DIR=alt.git git hash-object -w file1) && |
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git cat-file blob $altblob && |
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git rev-list --all |
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' |
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compare_results_with_midx "with alternate (local midx)" |
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test_expect_success 'multi-pack-index in an alternate' ' |
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mv .git/objects/pack/* alt.git/objects/pack && |
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test_commit add_local_objects && |
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git repack --local && |
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git multi-pack-index write && |
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midx_read_expect 1 3 4 $objdir && |
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git reset --hard HEAD~1 && |
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rm -f .git/objects/pack/* |
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' |
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compare_results_with_midx "with alternate (remote midx)" |
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# usage: corrupt_data <file> <pos> [<data>] |
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corrupt_data () { |
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file=$1 |
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pos=$2 |
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data="${3:-\0}" |
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printf "$data" | dd of="$file" bs=1 seek="$pos" conv=notrunc |
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} |
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# Force 64-bit offsets by manipulating the idx file. |
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# This makes the IDX file _incorrect_ so be careful to clean up after! |
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test_expect_success 'force some 64-bit offsets with pack-objects' ' |
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mkdir objects64 && |
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mkdir objects64/pack && |
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for i in $(test_seq 1 11) |
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do |
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generate_objects 11 |
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done && |
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commit_and_list_objects && |
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pack64=$(git pack-objects --index-version=2,0x40 objects64/pack/test-64 <obj-list) && |
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idx64=objects64/pack/test-64-$pack64.idx && |
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chmod u+w $idx64 && |
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corrupt_data $idx64 2999 "\02" && |
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midx64=$(git multi-pack-index --object-dir=objects64 write) && |
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midx_read_expect 1 63 5 objects64 " large-offsets" |
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' |
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test_expect_success 'verify multi-pack-index with 64-bit offsets' ' |
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git multi-pack-index verify --object-dir=objects64 |
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' |
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NUM_OBJECTS=63 |
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MIDX_OFFSET_OID_FANOUT=$((MIDX_OFFSET_PACKNAMES + 54)) |
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MIDX_OFFSET_OID_LOOKUP=$((MIDX_OFFSET_OID_FANOUT + 256 * $MIDX_OID_FANOUT_WIDTH)) |
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MIDX_OFFSET_OBJECT_OFFSETS=$(($MIDX_OFFSET_OID_LOOKUP + $NUM_OBJECTS * $HASH_LEN)) |
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MIDX_OFFSET_LARGE_OFFSETS=$(($MIDX_OFFSET_OBJECT_OFFSETS + $NUM_OBJECTS * $MIDX_OFFSET_WIDTH)) |
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MIDX_BYTE_LARGE_OFFSET=$(($MIDX_OFFSET_LARGE_OFFSETS + 3)) |
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test_expect_success 'verify incorrect 64-bit offset' ' |
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corrupt_midx_and_verify $MIDX_BYTE_LARGE_OFFSET "\07" objects64 \ |
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"incorrect object offset" |
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' |
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test_done
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