diff options
Diffstat (limited to 't/t5319-multi-pack-index.sh')
| -rwxr-xr-x | t/t5319-multi-pack-index.sh | 550 |
1 files changed, 550 insertions, 0 deletions
diff --git a/t/t5319-multi-pack-index.sh b/t/t5319-multi-pack-index.sh new file mode 100755 index 000000000000..c72ca0439993 --- /dev/null +++ b/t/t5319-multi-pack-index.sh @@ -0,0 +1,550 @@ +#!/bin/sh + +test_description='multi-pack-indexes' +. ./test-lib.sh + +objdir=.git/objects + +midx_read_expect () { + NUM_PACKS=$1 + NUM_OBJECTS=$2 + NUM_CHUNKS=$3 + OBJECT_DIR=$4 + EXTRA_CHUNKS="$5" + { + cat <<-EOF && + header: 4d494458 1 $NUM_CHUNKS $NUM_PACKS + chunks: pack-names oid-fanout oid-lookup object-offsets$EXTRA_CHUNKS + num_objects: $NUM_OBJECTS + packs: + EOF + if test $NUM_PACKS -ge 1 + then + ls $OBJECT_DIR/pack/ | grep idx | sort + fi && + printf "object-dir: $OBJECT_DIR\n" + } >expect && + test-tool read-midx $OBJECT_DIR >actual && + test_cmp expect actual +} + +test_expect_success 'write midx with no packs' ' + test_when_finished rm -f pack/multi-pack-index && + git multi-pack-index --object-dir=. write && + midx_read_expect 0 0 4 . +' + +generate_objects () { + i=$1 + iii=$(printf '%03i' $i) + { + test-tool genrandom "bar" 200 && + test-tool genrandom "baz $iii" 50 + } >wide_delta_$iii && + { + test-tool genrandom "foo"$i 100 && + test-tool genrandom "foo"$(( $i + 1 )) 100 && + test-tool genrandom "foo"$(( $i + 2 )) 100 + } >deep_delta_$iii && + { + echo $iii && + test-tool genrandom "$iii" 8192 + } >file_$iii && + git update-index --add file_$iii deep_delta_$iii wide_delta_$iii +} + +commit_and_list_objects () { + { + echo 101 && + test-tool genrandom 100 8192; + } >file_101 && + git update-index --add file_101 && + tree=$(git write-tree) && + commit=$(git commit-tree $tree -p HEAD</dev/null) && + { + echo $tree && + git ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\) .*/\\1/" + } >obj-list && + git reset --hard $commit +} + +test_expect_success 'create objects' ' + test_commit initial && + for i in $(test_seq 1 5) + do + generate_objects $i + done && + commit_and_list_objects +' + +test_expect_success 'write midx with one v1 pack' ' + pack=$(git pack-objects --index-version=1 $objdir/pack/test <obj-list) && + test_when_finished rm $objdir/pack/test-$pack.pack \ + $objdir/pack/test-$pack.idx $objdir/pack/multi-pack-index && + git multi-pack-index --object-dir=$objdir write && + midx_read_expect 1 18 4 $objdir +' + +midx_git_two_modes () { + git -c core.multiPackIndex=false $1 >expect && + git -c core.multiPackIndex=true $1 >actual && + if [ "$2" = "sorted" ] + then + sort <expect >expect.sorted && + mv expect.sorted expect && + sort <actual >actual.sorted && + mv actual.sorted actual + fi && + test_cmp expect actual +} + +compare_results_with_midx () { + MSG=$1 + test_expect_success "check normal git operations: $MSG" ' + midx_git_two_modes "rev-list --objects --all" && + midx_git_two_modes "log --raw" && + midx_git_two_modes "count-objects --verbose" && + midx_git_two_modes "cat-file --batch-all-objects --batch-check" && + midx_git_two_modes "cat-file --batch-all-objects --batch-check --unordered" sorted + ' +} + +test_expect_success 'write midx with one v2 pack' ' + git pack-objects --index-version=2,0x40 $objdir/pack/test <obj-list && + git multi-pack-index --object-dir=$objdir write && + midx_read_expect 1 18 4 $objdir +' + +compare_results_with_midx "one v2 pack" + +test_expect_success 'corrupt idx not opened' ' + idx=$(test-tool read-midx $objdir | grep "\.idx\$") && + mv $objdir/pack/$idx backup-$idx && + test_when_finished "mv backup-\$idx \$objdir/pack/\$idx" && + + # This is the minimum size for a sha-1 based .idx; this lets + # us pass perfunctory tests, but anything that actually opens and reads + # the idx file will complain. + test_copy_bytes 1064 <backup-$idx >$objdir/pack/$idx && + + git -c core.multiPackIndex=true rev-list --objects --all 2>err && + test_must_be_empty err +' + +test_expect_success 'add more objects' ' + for i in $(test_seq 6 10) + do + generate_objects $i + done && + commit_and_list_objects +' + +test_expect_success 'write midx with two packs' ' + git pack-objects --index-version=1 $objdir/pack/test-2 <obj-list && + git multi-pack-index --object-dir=$objdir write && + midx_read_expect 2 34 4 $objdir +' + +compare_results_with_midx "two packs" + +test_expect_success 'add more packs' ' + for j in $(test_seq 11 20) + do + generate_objects $j && + commit_and_list_objects && + git pack-objects --index-version=2 $objdir/pack/test-pack <obj-list + done +' + +compare_results_with_midx "mixed mode (two packs + extra)" + +test_expect_success 'write midx with twelve packs' ' + git multi-pack-index --object-dir=$objdir write && + midx_read_expect 12 74 4 $objdir +' + +compare_results_with_midx "twelve packs" + +test_expect_success 'verify multi-pack-index success' ' + git multi-pack-index verify --object-dir=$objdir +' + +# usage: corrupt_midx_and_verify <pos> <data> <objdir> <string> +corrupt_midx_and_verify() { + POS=$1 && + DATA="${2:-\0}" && + OBJDIR=$3 && + GREPSTR="$4" && + COMMAND="$5" && + if test -z "$COMMAND" + then + COMMAND="git multi-pack-index verify --object-dir=$OBJDIR" + fi && + FILE=$OBJDIR/pack/multi-pack-index && + chmod a+w $FILE && + test_when_finished mv midx-backup $FILE && + cp $FILE midx-backup && + printf "$DATA" | dd of="$FILE" bs=1 seek="$POS" conv=notrunc && + test_must_fail $COMMAND 2>test_err && + grep -v "^+" test_err >err && + test_i18ngrep "$GREPSTR" err +} + +test_expect_success 'verify bad signature' ' + corrupt_midx_and_verify 0 "\00" $objdir \ + "multi-pack-index signature" +' + +HASH_LEN=20 +NUM_OBJECTS=74 +MIDX_BYTE_VERSION=4 +MIDX_BYTE_OID_VERSION=5 +MIDX_BYTE_CHUNK_COUNT=6 +MIDX_HEADER_SIZE=12 +MIDX_BYTE_CHUNK_ID=$MIDX_HEADER_SIZE +MIDX_BYTE_CHUNK_OFFSET=$(($MIDX_HEADER_SIZE + 4)) +MIDX_NUM_CHUNKS=5 +MIDX_CHUNK_LOOKUP_WIDTH=12 +MIDX_OFFSET_PACKNAMES=$(($MIDX_HEADER_SIZE + \ + $MIDX_NUM_CHUNKS * $MIDX_CHUNK_LOOKUP_WIDTH)) +MIDX_BYTE_PACKNAME_ORDER=$(($MIDX_OFFSET_PACKNAMES + 2)) +MIDX_OFFSET_OID_FANOUT=$(($MIDX_OFFSET_PACKNAMES + 652)) +MIDX_OID_FANOUT_WIDTH=4 +MIDX_BYTE_OID_FANOUT_ORDER=$((MIDX_OFFSET_OID_FANOUT + 250 * $MIDX_OID_FANOUT_WIDTH + 1)) +MIDX_OFFSET_OID_LOOKUP=$(($MIDX_OFFSET_OID_FANOUT + 256 * $MIDX_OID_FANOUT_WIDTH)) +MIDX_BYTE_OID_LOOKUP=$(($MIDX_OFFSET_OID_LOOKUP + 16 * $HASH_LEN)) +MIDX_OFFSET_OBJECT_OFFSETS=$(($MIDX_OFFSET_OID_LOOKUP + $NUM_OBJECTS * $HASH_LEN)) +MIDX_OFFSET_WIDTH=8 +MIDX_BYTE_PACK_INT_ID=$(($MIDX_OFFSET_OBJECT_OFFSETS + 16 * $MIDX_OFFSET_WIDTH + 2)) +MIDX_BYTE_OFFSET=$(($MIDX_OFFSET_OBJECT_OFFSETS + 16 * $MIDX_OFFSET_WIDTH + 6)) + +test_expect_success 'verify bad version' ' + corrupt_midx_and_verify $MIDX_BYTE_VERSION "\00" $objdir \ + "multi-pack-index version" +' + +test_expect_success 'verify bad OID version' ' + corrupt_midx_and_verify $MIDX_BYTE_OID_VERSION "\02" $objdir \ + "hash version" +' + +test_expect_success 'verify truncated chunk count' ' + corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\01" $objdir \ + "missing required" +' + +test_expect_success 'verify extended chunk count' ' + corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\07" $objdir \ + "terminating multi-pack-index chunk id appears earlier than expected" +' + +test_expect_success 'verify missing required chunk' ' + corrupt_midx_and_verify $MIDX_BYTE_CHUNK_ID "\01" $objdir \ + "missing required" +' + +test_expect_success 'verify invalid chunk offset' ' + corrupt_midx_and_verify $MIDX_BYTE_CHUNK_OFFSET "\01" $objdir \ + "invalid chunk offset (too large)" +' + +test_expect_success 'verify packnames out of order' ' + corrupt_midx_and_verify $MIDX_BYTE_PACKNAME_ORDER "z" $objdir \ + "pack names out of order" +' + +test_expect_success 'verify packnames out of order' ' + corrupt_midx_and_verify $MIDX_BYTE_PACKNAME_ORDER "a" $objdir \ + "failed to load pack" +' + +test_expect_success 'verify oid fanout out of order' ' + corrupt_midx_and_verify $MIDX_BYTE_OID_FANOUT_ORDER "\01" $objdir \ + "oid fanout out of order" +' + +test_expect_success 'verify oid lookup out of order' ' + corrupt_midx_and_verify $MIDX_BYTE_OID_LOOKUP "\00" $objdir \ + "oid lookup out of order" +' + +test_expect_success 'verify incorrect pack-int-id' ' + corrupt_midx_and_verify $MIDX_BYTE_PACK_INT_ID "\07" $objdir \ + "bad pack-int-id" +' + +test_expect_success 'verify incorrect offset' ' + corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\07" $objdir \ + "incorrect object offset" +' + +test_expect_success 'git-fsck incorrect offset' ' + corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\07" $objdir \ + "incorrect object offset" \ + "git -c core.multipackindex=true fsck" +' + +test_expect_success 'repack removes multi-pack-index' ' + test_path_is_file $objdir/pack/multi-pack-index && + GIT_TEST_MULTI_PACK_INDEX=0 git repack -adf && + test_path_is_missing $objdir/pack/multi-pack-index +' + +compare_results_with_midx "after repack" + +test_expect_success 'multi-pack-index and pack-bitmap' ' + git -c repack.writeBitmaps=true repack -ad && + git multi-pack-index write && + git rev-list --test-bitmap HEAD +' + +test_expect_success 'multi-pack-index and alternates' ' + git init --bare alt.git && + echo $(pwd)/alt.git/objects >.git/objects/info/alternates && + echo content1 >file1 && + altblob=$(GIT_DIR=alt.git git hash-object -w file1) && + git cat-file blob $altblob && + git rev-list --all +' + +compare_results_with_midx "with alternate (local midx)" + +test_expect_success 'multi-pack-index in an alternate' ' + mv .git/objects/pack/* alt.git/objects/pack && + test_commit add_local_objects && + git repack --local && + git multi-pack-index write && + midx_read_expect 1 3 4 $objdir && + git reset --hard HEAD~1 && + rm -f .git/objects/pack/* +' + +compare_results_with_midx "with alternate (remote midx)" + +# usage: corrupt_data <file> <pos> [<data>] +corrupt_data () { + file=$1 + pos=$2 + data="${3:-\0}" + printf "$data" | dd of="$file" bs=1 seek="$pos" conv=notrunc +} + +# Force 64-bit offsets by manipulating the idx file. +# This makes the IDX file _incorrect_ so be careful to clean up after! +test_expect_success 'force some 64-bit offsets with pack-objects' ' + mkdir objects64 && + mkdir objects64/pack && + for i in $(test_seq 1 11) + do + generate_objects 11 + done && + commit_and_list_objects && + pack64=$(git pack-objects --index-version=2,0x40 objects64/pack/test-64 <obj-list) && + idx64=objects64/pack/test-64-$pack64.idx && + chmod u+w $idx64 && + corrupt_data $idx64 2999 "\02" && + midx64=$(git multi-pack-index --object-dir=objects64 write) && + midx_read_expect 1 63 5 objects64 " large-offsets" +' + +test_expect_success 'verify multi-pack-index with 64-bit offsets' ' + git multi-pack-index verify --object-dir=objects64 +' + +NUM_OBJECTS=63 +MIDX_OFFSET_OID_FANOUT=$((MIDX_OFFSET_PACKNAMES + 54)) +MIDX_OFFSET_OID_LOOKUP=$((MIDX_OFFSET_OID_FANOUT + 256 * $MIDX_OID_FANOUT_WIDTH)) +MIDX_OFFSET_OBJECT_OFFSETS=$(($MIDX_OFFSET_OID_LOOKUP + $NUM_OBJECTS * $HASH_LEN)) +MIDX_OFFSET_LARGE_OFFSETS=$(($MIDX_OFFSET_OBJECT_OFFSETS + $NUM_OBJECTS * $MIDX_OFFSET_WIDTH)) +MIDX_BYTE_LARGE_OFFSET=$(($MIDX_OFFSET_LARGE_OFFSETS + 3)) + +test_expect_success 'verify incorrect 64-bit offset' ' + corrupt_midx_and_verify $MIDX_BYTE_LARGE_OFFSET "\07" objects64 \ + "incorrect object offset" +' + +test_expect_success 'setup expire tests' ' + mkdir dup && + ( + cd dup && + git init && + test-tool genrandom "data" 4096 >large_file.txt && + git update-index --add large_file.txt && + for i in $(test_seq 1 20) + do + test_commit $i + done && + git branch A HEAD && + git branch B HEAD~8 && + git branch C HEAD~13 && + git branch D HEAD~16 && + git branch E HEAD~18 && + git pack-objects --revs .git/objects/pack/pack-A <<-EOF && + refs/heads/A + ^refs/heads/B + EOF + git pack-objects --revs .git/objects/pack/pack-B <<-EOF && + refs/heads/B + ^refs/heads/C + EOF + git pack-objects --revs .git/objects/pack/pack-C <<-EOF && + refs/heads/C + ^refs/heads/D + EOF + git pack-objects --revs .git/objects/pack/pack-D <<-EOF && + refs/heads/D + ^refs/heads/E + EOF + git pack-objects --revs .git/objects/pack/pack-E <<-EOF && + refs/heads/E + EOF + git multi-pack-index write && + cp -r .git/objects/pack .git/objects/pack-backup + ) +' + +test_expect_success 'expire does not remove any packs' ' + ( + cd dup && + ls .git/objects/pack >expect && + git multi-pack-index expire && + ls .git/objects/pack >actual && + test_cmp expect actual + ) +' + +test_expect_success 'expire removes unreferenced packs' ' + ( + cd dup && + git pack-objects --revs .git/objects/pack/pack-combined <<-EOF && + refs/heads/A + ^refs/heads/C + EOF + git multi-pack-index write && + ls .git/objects/pack | grep -v -e pack-[AB] >expect && + git multi-pack-index expire && + ls .git/objects/pack >actual && + test_cmp expect actual && + ls .git/objects/pack/ | grep idx >expect-idx && + test-tool read-midx .git/objects | grep idx >actual-midx && + test_cmp expect-idx actual-midx && + git multi-pack-index verify && + git fsck + ) +' + +test_expect_success 'repack with minimum size does not alter existing packs' ' + ( + cd dup && + rm -rf .git/objects/pack && + mv .git/objects/pack-backup .git/objects/pack && + touch -m -t 201901010000 .git/objects/pack/pack-D* && + touch -m -t 201901010001 .git/objects/pack/pack-C* && + touch -m -t 201901010002 .git/objects/pack/pack-B* && + touch -m -t 201901010003 .git/objects/pack/pack-A* && + ls .git/objects/pack >expect && + MINSIZE=$(test-tool path-utils file-size .git/objects/pack/*pack | sort -n | head -n 1) && + git multi-pack-index repack --batch-size=$MINSIZE && + ls .git/objects/pack >actual && + test_cmp expect actual + ) +' + +test_expect_success 'repack creates a new pack' ' + ( + cd dup && + ls .git/objects/pack/*idx >idx-list && + test_line_count = 5 idx-list && + THIRD_SMALLEST_SIZE=$(test-tool path-utils file-size .git/objects/pack/*pack | sort -n | head -n 3 | tail -n 1) && + BATCH_SIZE=$(($THIRD_SMALLEST_SIZE + 1)) && + git multi-pack-index repack --batch-size=$BATCH_SIZE && + ls .git/objects/pack/*idx >idx-list && + test_line_count = 6 idx-list && + test-tool read-midx .git/objects | grep idx >midx-list && + test_line_count = 6 midx-list + ) +' + +test_expect_success 'expire removes repacked packs' ' + ( + cd dup && + ls -al .git/objects/pack/*pack && + ls -S .git/objects/pack/*pack | head -n 4 >expect && + git multi-pack-index expire && + ls -S .git/objects/pack/*pack >actual && + test_cmp expect actual && + test-tool read-midx .git/objects | grep idx >midx-list && + test_line_count = 4 midx-list + ) +' + +test_expect_success 'expire works when adding new packs' ' + ( + cd dup && + git pack-objects --revs .git/objects/pack/pack-combined <<-EOF && + refs/heads/A + ^refs/heads/B + EOF + git pack-objects --revs .git/objects/pack/pack-combined <<-EOF && + refs/heads/B + ^refs/heads/C + EOF + git pack-objects --revs .git/objects/pack/pack-combined <<-EOF && + refs/heads/C + ^refs/heads/D + EOF + git multi-pack-index write && + git pack-objects --revs .git/objects/pack/a-pack <<-EOF && + refs/heads/D + ^refs/heads/E + EOF + git multi-pack-index write && + git pack-objects --revs .git/objects/pack/z-pack <<-EOF && + refs/heads/E + EOF + git multi-pack-index expire && + ls .git/objects/pack/ | grep idx >expect && + test-tool read-midx .git/objects | grep idx >actual && + test_cmp expect actual && + git multi-pack-index verify + ) +' + +test_expect_success 'expire respects .keep files' ' + ( + cd dup && + git pack-objects --revs .git/objects/pack/pack-all <<-EOF && + refs/heads/A + EOF + git multi-pack-index write && + PACKA=$(ls .git/objects/pack/a-pack*\.pack | sed s/\.pack\$//) && + touch $PACKA.keep && + git multi-pack-index expire && + ls -S .git/objects/pack/a-pack* | grep $PACKA >a-pack-files && + test_line_count = 3 a-pack-files && + test-tool read-midx .git/objects | grep idx >midx-list && + test_line_count = 2 midx-list + ) +' + +test_expect_success 'repack --batch-size=0 repacks everything' ' + ( + cd dup && + rm .git/objects/pack/*.keep && + ls .git/objects/pack/*idx >idx-list && + test_line_count = 2 idx-list && + git multi-pack-index repack --batch-size=0 && + ls .git/objects/pack/*idx >idx-list && + test_line_count = 3 idx-list && + test-tool read-midx .git/objects | grep idx >midx-list && + test_line_count = 3 midx-list && + git multi-pack-index expire && + ls -al .git/objects/pack/*idx >idx-list && + test_line_count = 1 idx-list && + git multi-pack-index repack --batch-size=0 && + ls -al .git/objects/pack/*idx >new-idx-list && + test_cmp idx-list new-idx-list + ) +' + +test_done |