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5f5ccd9595
When a multi-pack bitmap is used to implement verbatim pack reuse (that is, when verbatim chunks from an on-disk packfile are copied directly[^1]), it does so by using its "preferred pack" as the source for pack-reuse. This allows repositories to pack the majority of their objects into a single (often large) pack, and then use it as the single source for verbatim pack reuse. This increases the amount of objects that are reused verbatim (and consequently, decrease the amount of time it takes to generate many packs). But this performance comes at a cost, which is that the preferred packfile must pace its growth with that of the entire repository in order to maintain the utility of verbatim pack reuse. As repositories grow beyond what we can reasonably store in a single packfile, the utility of verbatim pack reuse diminishes. Or, at the very least, it becomes increasingly more expensive to maintain as the pack grows larger and larger. It would be beneficial to be able to perform this same optimization over multiple packs, provided some modest constraints (most importantly, that the set of packs eligible for verbatim reuse are disjoint with respect to the subset of their objects being sent). If we assume that the packs which we treat as candidates for verbatim reuse are disjoint with respect to any of their objects we may output, we need to make only modest modifications to the verbatim pack-reuse code itself. Most notably, we need to remove the assumption that the bits in the reachability bitmap corresponding to objects from the single reuse pack begin at the first bit position. Future patches will unwind these assumptions and reimplement their existing functionality as special cases of the more general assumptions (e.g. that reuse bits can start anywhere within the bitset, but happen to start at 0 for all existing cases). This patch does not yet relax any of those assumptions. Instead, it implements a foundational data-structure, the "Bitampped Packs" (`BTMP`) chunk of the multi-pack index. The `BTMP` chunk's contents are described in detail here. Importantly, the `BTMP` chunk contains information to map regions of a multi-pack index's reachability bitmap to the packs whose objects they represent. For now, this chunk is only written, not read (outside of the test-tool used in this patch to test the new chunk's behavior). Future patches will begin to make use of this new chunk. [^1]: Modulo patching any `OFS_DELTA`'s that cross over a region of the pack that wasn't used verbatim. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
1210 lines
34 KiB
Bash
Executable file
1210 lines
34 KiB
Bash
Executable file
#!/bin/sh
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test_description='multi-pack-indexes'
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. ./test-lib.sh
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. "$TEST_DIRECTORY"/lib-chunk.sh
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GIT_TEST_MULTI_PACK_INDEX=0
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objdir=.git/objects
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HASH_LEN=$(test_oid rawsz)
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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 $HASH_LEN $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 $OBJECT_DIR >actual &&
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test_cmp expect actual
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}
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test_expect_success 'setup' '
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test_oid_cache <<-EOF
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idxoff sha1:2999
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idxoff sha256:3739
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packnameoff sha1:652
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packnameoff sha256:940
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fanoutoff sha1:1
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fanoutoff sha256:3
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EOF
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'
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test_expect_success "don't write midx with no packs" '
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test_must_fail git multi-pack-index --object-dir=. write &&
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test_path_is_missing pack/multi-pack-index
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'
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test_expect_success SHA1 'warn if a midx contains no oid' '
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cp "$TEST_DIRECTORY"/t5319/no-objects.midx $objdir/pack/multi-pack-index &&
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test_must_fail git multi-pack-index verify &&
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rm $objdir/pack/multi-pack-index
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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 $i || return 1
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done &&
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commit_and_list_objects
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'
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test_expect_success 'write midx with one v1 pack' '
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pack=$(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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git -c core.multiPackIndex=false $1 >expect &&
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git -c core.multiPackIndex=true $1 >actual &&
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if [ "$2" = "sorted" ]
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then
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sort <expect >expect.sorted &&
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mv expect.sorted expect &&
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sort <actual >actual.sorted &&
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mv actual.sorted 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 --batch-check" &&
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midx_git_two_modes "cat-file --batch-all-objects --batch-check --unordered" 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 $objdir
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'
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compare_results_with_midx "one v2 pack"
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test_expect_success 'corrupt idx reports errors' '
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idx=$(test-tool read-midx $objdir | grep "\.idx\$") &&
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mv $objdir/pack/$idx backup-$idx &&
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test_when_finished "mv backup-\$idx \$objdir/pack/\$idx" &&
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# This is the minimum size for a sha-1 based .idx; this lets
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# us pass perfunctory tests, but anything that actually opens and reads
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# the idx file will complain.
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test_copy_bytes 1064 <backup-$idx >$objdir/pack/$idx &&
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git -c core.multiPackIndex=true rev-list --objects --all 2>err &&
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grep "index unavailable" err
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'
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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 || return 1
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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 'write midx with --stdin-packs' '
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rm -fr $objdir/pack/multi-pack-index &&
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idx="$(find $objdir/pack -name "test-2-*.idx")" &&
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basename "$idx" >in &&
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git multi-pack-index write --stdin-packs <in &&
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test-tool read-midx $objdir | grep "\.idx$" >packs &&
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test_cmp packs in
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'
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compare_results_with_midx "mixed mode (one pack + extra)"
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test_expect_success 'write with no objects and preferred pack' '
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test_when_finished "rm -rf empty" &&
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git init empty &&
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test_must_fail git -C empty multi-pack-index write \
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--stdin-packs --preferred-pack=does-not-exist </dev/null 2>err &&
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cat >expect <<-EOF &&
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warning: unknown preferred pack: ${SQ}does-not-exist${SQ}
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error: no pack files to index.
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EOF
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test_cmp expect err
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'
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test_expect_success 'write progress off for redirected stderr' '
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git multi-pack-index --object-dir=$objdir write 2>err &&
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test_line_count = 0 err
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'
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test_expect_success 'write force progress on for stderr' '
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GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir write --progress 2>err &&
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test_file_not_empty err
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'
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test_expect_success 'write with the --no-progress option' '
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GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir write --no-progress 2>err &&
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test_line_count = 0 err
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'
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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 $objdir/pack/test-pack <obj-list || return 1
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done
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'
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compare_results_with_midx "mixed mode (two packs + extra)"
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test_expect_success 'write midx with twelve packs' '
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git multi-pack-index --object-dir=$objdir write &&
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midx_read_expect 12 74 4 $objdir
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'
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compare_results_with_midx "twelve packs"
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test_expect_success 'multi-pack-index *.rev cleanup with --object-dir' '
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git init repo &&
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git clone -s repo alternate &&
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test_when_finished "rm -rf repo alternate" &&
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(
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cd repo &&
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test_commit base &&
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git repack -d
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) &&
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ours="alternate/.git/objects/pack/multi-pack-index-123.rev" &&
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theirs="repo/.git/objects/pack/multi-pack-index-abc.rev" &&
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touch "$ours" "$theirs" &&
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(
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cd alternate &&
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git multi-pack-index --object-dir ../repo/.git/objects write
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) &&
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# writing a midx in "repo" should not remove the .rev file in the
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# alternate
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test_path_is_file repo/.git/objects/pack/multi-pack-index &&
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test_path_is_file $ours &&
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test_path_is_missing $theirs
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'
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test_expect_success 'warn on improper hash version' '
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git init --object-format=sha1 sha1 &&
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(
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cd sha1 &&
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git config core.multiPackIndex true &&
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test_commit 1 &&
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git repack -a &&
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git multi-pack-index write &&
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mv .git/objects/pack/multi-pack-index ../mpi-sha1
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) &&
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git init --object-format=sha256 sha256 &&
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(
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cd sha256 &&
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git config core.multiPackIndex true &&
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test_commit 1 &&
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git repack -a &&
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git multi-pack-index write &&
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mv .git/objects/pack/multi-pack-index ../mpi-sha256
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) &&
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(
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cd sha1 &&
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mv ../mpi-sha256 .git/objects/pack/multi-pack-index &&
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git log -1 2>err &&
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test_grep "multi-pack-index hash version 2 does not match version 1" err
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) &&
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(
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cd sha256 &&
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mv ../mpi-sha1 .git/objects/pack/multi-pack-index &&
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git log -1 2>err &&
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test_grep "multi-pack-index hash version 1 does not match version 2" err
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)
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'
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test_expect_success 'midx picks objects from preferred pack' '
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test_when_finished rm -rf preferred.git &&
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git init --bare preferred.git &&
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(
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cd preferred.git &&
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a=$(echo "a" | git hash-object -w --stdin) &&
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b=$(echo "b" | git hash-object -w --stdin) &&
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c=$(echo "c" | git hash-object -w --stdin) &&
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# Set up two packs, duplicating the object "B" at different
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# offsets.
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#
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# Note that the "BC" pack (the one we choose as preferred) sorts
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# lexically after the "AB" pack, meaning that omitting the
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# --preferred-pack argument would cause this test to fail (since
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# the MIDX code would select the copy of "b" in the "AB" pack).
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git pack-objects objects/pack/test-AB <<-EOF &&
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$a
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$b
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EOF
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bc=$(git pack-objects objects/pack/test-BC <<-EOF
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$b
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$c
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EOF
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) &&
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git multi-pack-index --object-dir=objects \
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write --preferred-pack=test-BC-$bc.idx 2>err &&
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test_must_be_empty err &&
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test-tool read-midx --show-objects objects >out &&
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ofs=$(git show-index <objects/pack/test-BC-$bc.idx | grep $b |
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cut -d" " -f1) &&
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printf "%s %s\tobjects/pack/test-BC-%s.pack\n" \
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"$b" "$ofs" "$bc" >expect &&
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grep ^$b out >actual &&
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test_cmp expect actual
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)
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'
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test_expect_success 'preferred packs must be non-empty' '
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test_when_finished rm -rf preferred.git &&
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git init preferred.git &&
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(
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cd preferred.git &&
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test_commit base &&
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git repack -ad &&
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empty="$(git pack-objects $objdir/pack/pack </dev/null)" &&
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test_must_fail git multi-pack-index write \
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--preferred-pack=pack-$empty.pack 2>err &&
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grep "with no objects" err
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)
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'
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test_expect_success 'verify multi-pack-index success' '
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git multi-pack-index verify --object-dir=$objdir
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'
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test_expect_success 'verify progress off for redirected stderr' '
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git multi-pack-index verify --object-dir=$objdir 2>err &&
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test_line_count = 0 err
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'
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test_expect_success 'verify force progress on for stderr' '
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git multi-pack-index verify --object-dir=$objdir --progress 2>err &&
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test_file_not_empty err
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'
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test_expect_success 'verify with the --no-progress option' '
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git multi-pack-index verify --object-dir=$objdir --no-progress 2>err &&
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test_line_count = 0 err
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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 $COMMAND 2>test_err &&
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grep -v "^+" test_err >err &&
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test_grep "$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" $objdir \
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"multi-pack-index signature"
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'
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NUM_OBJECTS=74
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MIDX_BYTE_VERSION=4
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MIDX_BYTE_OID_VERSION=5
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MIDX_BYTE_CHUNK_COUNT=6
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MIDX_HEADER_SIZE=12
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MIDX_BYTE_CHUNK_ID=$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 + $(test_oid packnameoff)))
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MIDX_OID_FANOUT_WIDTH=4
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MIDX_BYTE_OID_FANOUT_ORDER=$((MIDX_OFFSET_OID_FANOUT + 250 * $MIDX_OID_FANOUT_WIDTH + $(test_oid fanoutoff)))
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MIDX_OFFSET_OID_LOOKUP=$(($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 "\03" $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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"final chunk has non-zero id"
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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 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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"required pack-name chunk missing"
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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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"improper chunk offset(s)"
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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 \
|
|
"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 "\377" $objdir \
|
|
"incorrect object offset"
|
|
'
|
|
|
|
test_expect_success 'git-fsck incorrect offset' '
|
|
corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\377" $objdir \
|
|
"incorrect object offset" \
|
|
"git -c core.multiPackIndex=true fsck" &&
|
|
test_unconfig core.multiPackIndex &&
|
|
test_must_fail git fsck &&
|
|
git -c core.multiPackIndex=false fsck
|
|
'
|
|
|
|
test_expect_success 'git fsck shows MIDX output with --progress' '
|
|
git fsck --progress 2>err &&
|
|
grep "Verifying OID order in multi-pack-index" err &&
|
|
grep "Verifying object offsets" err
|
|
'
|
|
|
|
test_expect_success 'git fsck suppresses MIDX output with --no-progress' '
|
|
git fsck --no-progress 2>err &&
|
|
! grep "Verifying OID order in multi-pack-index" err &&
|
|
! grep "Verifying object offsets" err
|
|
'
|
|
|
|
test_expect_success 'corrupt MIDX is not reused' '
|
|
corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\377" $objdir \
|
|
"incorrect object offset" &&
|
|
git multi-pack-index write 2>err &&
|
|
test_grep checksum.mismatch err &&
|
|
git multi-pack-index verify
|
|
'
|
|
|
|
test_expect_success 'verify incorrect checksum' '
|
|
pos=$(($(wc -c <$objdir/pack/multi-pack-index) - 10)) &&
|
|
corrupt_midx_and_verify $pos \
|
|
"\377\377\377\377\377\377\377\377\377\377" \
|
|
$objdir "incorrect checksum"
|
|
'
|
|
|
|
test_expect_success 'repack progress off for redirected stderr' '
|
|
GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir repack 2>err &&
|
|
test_line_count = 0 err
|
|
'
|
|
|
|
test_expect_success 'repack force progress on for stderr' '
|
|
GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir repack --progress 2>err &&
|
|
test_file_not_empty err
|
|
'
|
|
|
|
test_expect_success 'repack with the --no-progress option' '
|
|
GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir repack --no-progress 2>err &&
|
|
test_line_count = 0 err
|
|
'
|
|
|
|
test_expect_success 'repack removes multi-pack-index when deleting packs' '
|
|
test_path_is_file $objdir/pack/multi-pack-index &&
|
|
# Set GIT_TEST_MULTI_PACK_INDEX to 0 to avoid writing a new
|
|
# multi-pack-index after repacking, but set "core.multiPackIndex" to
|
|
# true so that "git repack" can read the existing MIDX.
|
|
GIT_TEST_MULTI_PACK_INDEX=0 git -c core.multiPackIndex repack -adf &&
|
|
test_path_is_missing $objdir/pack/multi-pack-index
|
|
'
|
|
|
|
test_expect_success 'repack preserves multi-pack-index when creating packs' '
|
|
git init preserve &&
|
|
test_when_finished "rm -fr preserve" &&
|
|
(
|
|
cd preserve &&
|
|
packdir=.git/objects/pack &&
|
|
midx=$packdir/multi-pack-index &&
|
|
|
|
test_commit 1 &&
|
|
pack1=$(git pack-objects --all $packdir/pack) &&
|
|
touch $packdir/pack-$pack1.keep &&
|
|
test_commit 2 &&
|
|
pack2=$(git pack-objects --revs $packdir/pack) &&
|
|
touch $packdir/pack-$pack2.keep &&
|
|
|
|
git multi-pack-index write &&
|
|
cp $midx $midx.bak &&
|
|
|
|
cat >pack-input <<-EOF &&
|
|
HEAD
|
|
^HEAD~1
|
|
EOF
|
|
test_commit 3 &&
|
|
pack3=$(git pack-objects --revs $packdir/pack <pack-input) &&
|
|
test_commit 4 &&
|
|
pack4=$(git pack-objects --revs $packdir/pack <pack-input) &&
|
|
|
|
GIT_TEST_MULTI_PACK_INDEX=0 git -c core.multiPackIndex repack -ad &&
|
|
ls -la $packdir &&
|
|
test_path_is_file $packdir/pack-$pack1.pack &&
|
|
test_path_is_file $packdir/pack-$pack2.pack &&
|
|
test_path_is_missing $packdir/pack-$pack3.pack &&
|
|
test_path_is_missing $packdir/pack-$pack4.pack &&
|
|
test_cmp_bin $midx.bak $midx
|
|
)
|
|
'
|
|
|
|
compare_results_with_midx "after repack"
|
|
|
|
test_expect_success 'multi-pack-index and pack-bitmap' '
|
|
GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 \
|
|
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 $(test_seq 1 11)
|
|
do
|
|
generate_objects 11 || return 1
|
|
done &&
|
|
commit_and_list_objects &&
|
|
pack64=$(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 $(test_oid idxoff) "\02" &&
|
|
# objects64 is not a real repository, but can serve as an alternate
|
|
# anyway so we can write a MIDX into it
|
|
git init repo &&
|
|
test_when_finished "rm -fr repo" &&
|
|
(
|
|
cd repo &&
|
|
( cd ../objects64 && pwd ) >.git/objects/info/alternates &&
|
|
midx64=$(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 || exit 1
|
|
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 progress off for redirected stderr' '
|
|
(
|
|
cd dup &&
|
|
git multi-pack-index expire 2>err &&
|
|
test_line_count = 0 err
|
|
)
|
|
'
|
|
|
|
test_expect_success 'expire force progress on for stderr' '
|
|
(
|
|
cd dup &&
|
|
GIT_PROGRESS_DELAY=0 git multi-pack-index expire --progress 2>err &&
|
|
test_file_not_empty err
|
|
)
|
|
'
|
|
|
|
test_expect_success 'expire with the --no-progress option' '
|
|
(
|
|
cd dup &&
|
|
GIT_PROGRESS_DELAY=0 git multi-pack-index expire --no-progress 2>err &&
|
|
test_line_count = 0 err
|
|
)
|
|
'
|
|
|
|
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 &&
|
|
test-tool chmtime =-5 .git/objects/pack/pack-D* &&
|
|
test-tool chmtime =-4 .git/objects/pack/pack-C* &&
|
|
test-tool chmtime =-3 .git/objects/pack/pack-B* &&
|
|
test-tool chmtime =-2 .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 respects repack.packKeptObjects=false' '
|
|
test_when_finished rm -f dup/.git/objects/pack/*keep &&
|
|
(
|
|
cd dup &&
|
|
ls .git/objects/pack/*idx >idx-list &&
|
|
test_line_count = 5 idx-list &&
|
|
ls .git/objects/pack/*.pack | sed "s/\.pack/.keep/" >keep-list &&
|
|
test_line_count = 5 keep-list &&
|
|
for keep in $(cat keep-list)
|
|
do
|
|
touch $keep || return 1
|
|
done &&
|
|
git multi-pack-index repack --batch-size=0 &&
|
|
ls .git/objects/pack/*idx >idx-list &&
|
|
test_line_count = 5 idx-list &&
|
|
test-tool read-midx .git/objects | grep idx >midx-list &&
|
|
test_line_count = 5 midx-list &&
|
|
THIRD_SMALLEST_SIZE=$(test-tool path-utils file-size .git/objects/pack/*pack | sort -n | sed -n 3p) &&
|
|
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 = 5 idx-list &&
|
|
test-tool read-midx .git/objects | grep idx >midx-list &&
|
|
test_line_count = 5 midx-list
|
|
)
|
|
'
|
|
|
|
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 'repack (all) ignores cruft pack' '
|
|
git init repo &&
|
|
test_when_finished "rm -fr repo" &&
|
|
(
|
|
cd repo &&
|
|
|
|
test_commit base &&
|
|
test_commit --no-tag unreachable &&
|
|
|
|
git reset --hard base &&
|
|
git reflog expire --all --expire=all &&
|
|
git repack --cruft -d &&
|
|
|
|
git multi-pack-index write &&
|
|
|
|
find $objdir/pack | sort >before &&
|
|
git multi-pack-index repack --batch-size=0 &&
|
|
find $objdir/pack | sort >after &&
|
|
|
|
test_cmp before after
|
|
)
|
|
'
|
|
|
|
test_expect_success 'repack (--batch-size) ignores cruft pack' '
|
|
git init repo &&
|
|
test_when_finished "rm -fr repo" &&
|
|
(
|
|
cd repo &&
|
|
|
|
test_commit_bulk 5 &&
|
|
test_commit --no-tag unreachable &&
|
|
|
|
git reset --hard HEAD^ &&
|
|
git reflog expire --all --expire=all &&
|
|
git repack --cruft -d &&
|
|
|
|
test_commit four &&
|
|
|
|
find $objdir/pack -type f -name "*.pack" | sort >before &&
|
|
git repack -d &&
|
|
find $objdir/pack -type f -name "*.pack" | sort >after &&
|
|
|
|
pack="$(comm -13 before after)" &&
|
|
test_file_size "$pack" >sz &&
|
|
# Set --batch-size to twice the size of the pack created
|
|
# in the previous step, since this is enough to
|
|
# accommodate it and the cruft pack.
|
|
#
|
|
# This means that the MIDX machinery *could* combine the
|
|
# new and cruft packs together.
|
|
#
|
|
# We ensure that it does not below.
|
|
batch="$((($(cat sz) * 2)))" &&
|
|
|
|
git multi-pack-index write &&
|
|
|
|
find $objdir/pack | sort >before &&
|
|
git multi-pack-index repack --batch-size=$batch &&
|
|
find $objdir/pack | sort >after &&
|
|
|
|
test_cmp before after
|
|
)
|
|
'
|
|
|
|
test_expect_success 'expire removes repacked packs' '
|
|
(
|
|
cd dup &&
|
|
ls -al .git/objects/pack/*pack &&
|
|
ls -S .git/objects/pack/*pack | head -n 4 >expect &&
|
|
git multi-pack-index expire &&
|
|
ls -S .git/objects/pack/*pack >actual &&
|
|
test_cmp expect actual &&
|
|
test-tool read-midx .git/objects | grep idx >midx-list &&
|
|
test_line_count = 4 midx-list
|
|
)
|
|
'
|
|
|
|
test_expect_success 'expire works when adding new packs' '
|
|
(
|
|
cd dup &&
|
|
git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
|
|
refs/heads/A
|
|
^refs/heads/B
|
|
EOF
|
|
git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
|
|
refs/heads/B
|
|
^refs/heads/C
|
|
EOF
|
|
git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
|
|
refs/heads/C
|
|
^refs/heads/D
|
|
EOF
|
|
git multi-pack-index write &&
|
|
git pack-objects --revs .git/objects/pack/a-pack <<-EOF &&
|
|
refs/heads/D
|
|
^refs/heads/E
|
|
EOF
|
|
git multi-pack-index write &&
|
|
git pack-objects --revs .git/objects/pack/z-pack <<-EOF &&
|
|
refs/heads/E
|
|
EOF
|
|
git multi-pack-index expire &&
|
|
ls .git/objects/pack/ | grep idx >expect &&
|
|
test-tool read-midx .git/objects | grep idx >actual &&
|
|
test_cmp expect actual &&
|
|
git multi-pack-index verify
|
|
)
|
|
'
|
|
|
|
test_expect_success 'expire respects .keep files' '
|
|
(
|
|
cd dup &&
|
|
git pack-objects --revs .git/objects/pack/pack-all <<-EOF &&
|
|
refs/heads/A
|
|
EOF
|
|
git multi-pack-index write &&
|
|
PACKA=$(ls .git/objects/pack/a-pack*\.pack | sed s/\.pack\$//) &&
|
|
touch $PACKA.keep &&
|
|
git multi-pack-index expire &&
|
|
test_path_is_file $PACKA.idx &&
|
|
test_path_is_file $PACKA.keep &&
|
|
test_path_is_file $PACKA.pack &&
|
|
test-tool read-midx .git/objects | grep idx >midx-list &&
|
|
test_line_count = 2 midx-list
|
|
)
|
|
'
|
|
|
|
test_expect_success 'expiring unreferenced cruft pack retains pack' '
|
|
git init repo &&
|
|
test_when_finished "rm -fr repo" &&
|
|
(
|
|
cd repo &&
|
|
|
|
test_commit base &&
|
|
test_commit --no-tag unreachable &&
|
|
unreachable=$(git rev-parse HEAD) &&
|
|
|
|
git reset --hard base &&
|
|
git reflog expire --all --expire=all &&
|
|
git repack --cruft -d &&
|
|
mtimes="$(ls $objdir/pack/pack-*.mtimes)" &&
|
|
|
|
echo "base..$unreachable" >in &&
|
|
pack="$(git pack-objects --revs --delta-base-offset \
|
|
$objdir/pack/pack <in)" &&
|
|
|
|
# Preferring the contents of "$pack" will leave the
|
|
# cruft pack unreferenced (ie., none of the objects
|
|
# contained in the cruft pack will have their MIDX copy
|
|
# selected from the cruft pack).
|
|
git multi-pack-index write --preferred-pack="pack-$pack.pack" &&
|
|
git multi-pack-index expire &&
|
|
|
|
test_path_is_file "$mtimes"
|
|
)
|
|
'
|
|
|
|
test_expect_success 'repack --batch-size=0 repacks everything' '
|
|
cp -r dup dup2 &&
|
|
(
|
|
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_expect_success 'repack --batch-size=<large> repacks everything' '
|
|
(
|
|
cd dup2 &&
|
|
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=2000000 &&
|
|
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
|
|
)
|
|
'
|
|
|
|
test_expect_success 'load reverse index when missing .idx, .pack' '
|
|
git init repo &&
|
|
test_when_finished "rm -fr repo" &&
|
|
(
|
|
cd repo &&
|
|
|
|
git config core.multiPackIndex true &&
|
|
|
|
test_commit base &&
|
|
git repack -ad &&
|
|
git multi-pack-index write &&
|
|
|
|
git rev-parse HEAD >tip &&
|
|
pack=$(ls .git/objects/pack/pack-*.pack) &&
|
|
idx=$(ls .git/objects/pack/pack-*.idx) &&
|
|
|
|
mv $idx $idx.bak &&
|
|
git cat-file --batch-check="%(objectsize:disk)" <tip &&
|
|
|
|
mv $idx.bak $idx &&
|
|
|
|
mv $pack $pack.bak &&
|
|
git cat-file --batch-check="%(objectsize:disk)" <tip
|
|
)
|
|
'
|
|
|
|
test_expect_success 'usage shown without sub-command' '
|
|
test_expect_code 129 git multi-pack-index 2>err &&
|
|
! test_grep "unrecognized subcommand" err
|
|
'
|
|
|
|
test_expect_success 'complains when run outside of a repository' '
|
|
nongit test_must_fail git multi-pack-index write 2>err &&
|
|
grep "not a git repository" err
|
|
'
|
|
|
|
test_expect_success 'repack with delta islands' '
|
|
git init repo &&
|
|
test_when_finished "rm -fr repo" &&
|
|
(
|
|
cd repo &&
|
|
|
|
test_commit first &&
|
|
git repack &&
|
|
test_commit second &&
|
|
git repack &&
|
|
|
|
git multi-pack-index write &&
|
|
git -c repack.useDeltaIslands=true multi-pack-index repack
|
|
)
|
|
'
|
|
|
|
corrupt_chunk () {
|
|
midx=.git/objects/pack/multi-pack-index &&
|
|
test_when_finished "rm -rf $midx" &&
|
|
git repack -ad --write-midx &&
|
|
corrupt_chunk_file $midx "$@"
|
|
}
|
|
|
|
test_expect_success 'reader notices too-small oid fanout chunk' '
|
|
corrupt_chunk OIDF clear 00000000 &&
|
|
test_must_fail git log 2>err &&
|
|
cat >expect <<-\EOF &&
|
|
error: multi-pack-index OID fanout is of the wrong size
|
|
fatal: multi-pack-index required OID fanout chunk missing or corrupted
|
|
EOF
|
|
test_cmp expect err
|
|
'
|
|
|
|
test_expect_success 'reader notices too-small oid lookup chunk' '
|
|
corrupt_chunk OIDL clear 00000000 &&
|
|
test_must_fail git log 2>err &&
|
|
cat >expect <<-\EOF &&
|
|
error: multi-pack-index OID lookup chunk is the wrong size
|
|
fatal: multi-pack-index required OID lookup chunk missing or corrupted
|
|
EOF
|
|
test_cmp expect err
|
|
'
|
|
|
|
test_expect_success 'reader notices too-small pack names chunk' '
|
|
# There is no NUL to terminate the name here, so the
|
|
# chunk is too short.
|
|
corrupt_chunk PNAM clear 70656666 &&
|
|
test_must_fail git log 2>err &&
|
|
cat >expect <<-\EOF &&
|
|
fatal: multi-pack-index pack-name chunk is too short
|
|
EOF
|
|
test_cmp expect err
|
|
'
|
|
|
|
test_expect_success 'reader handles unaligned chunks' '
|
|
# A 9-byte PNAM means all of the subsequent chunks
|
|
# will no longer be 4-byte aligned, but it is still
|
|
# a valid one-pack chunk on its own (it is "foo.pack\0").
|
|
corrupt_chunk PNAM clear 666f6f2e7061636b00 &&
|
|
git -c core.multipackindex=false log >expect.out &&
|
|
git -c core.multipackindex=true log >out 2>err &&
|
|
test_cmp expect.out out &&
|
|
cat >expect.err <<-\EOF &&
|
|
error: chunk id 4f494446 not 4-byte aligned
|
|
EOF
|
|
test_cmp expect.err err
|
|
'
|
|
|
|
test_expect_success 'reader notices too-small object offset chunk' '
|
|
corrupt_chunk OOFF clear 00000000 &&
|
|
test_must_fail git log 2>err &&
|
|
cat >expect <<-\EOF &&
|
|
error: multi-pack-index object offset chunk is the wrong size
|
|
fatal: multi-pack-index required object offsets chunk missing or corrupted
|
|
EOF
|
|
test_cmp expect err
|
|
'
|
|
|
|
test_expect_success 'reader bounds-checks large offset table' '
|
|
# re-use the objects64 dir here to cheaply get access to a midx
|
|
# with large offsets.
|
|
git init repo &&
|
|
test_when_finished "rm -rf repo" &&
|
|
(
|
|
cd repo &&
|
|
(cd ../objects64 && pwd) >.git/objects/info/alternates &&
|
|
git multi-pack-index --object-dir=../objects64 write &&
|
|
midx=../objects64/pack/multi-pack-index &&
|
|
corrupt_chunk_file $midx LOFF clear &&
|
|
# using only %(objectsize) is important here; see the commit
|
|
# message for more details
|
|
test_must_fail git cat-file --batch-all-objects \
|
|
--batch-check="%(objectsize)" 2>err &&
|
|
cat >expect <<-\EOF &&
|
|
fatal: multi-pack-index large offset out of bounds
|
|
EOF
|
|
test_cmp expect err
|
|
)
|
|
'
|
|
|
|
test_expect_success 'reader notices too-small revindex chunk' '
|
|
# We only get a revindex with bitmaps (and likewise only
|
|
# load it when they are asked for).
|
|
test_config repack.writeBitmaps true &&
|
|
corrupt_chunk RIDX clear 00000000 &&
|
|
git -c core.multipackIndex=false rev-list \
|
|
--all --use-bitmap-index >expect.out &&
|
|
git -c core.multipackIndex=true rev-list \
|
|
--all --use-bitmap-index >out 2>err &&
|
|
test_cmp expect.out out &&
|
|
cat >expect.err <<-\EOF &&
|
|
error: multi-pack-index reverse-index chunk is the wrong size
|
|
warning: multi-pack bitmap is missing required reverse index
|
|
EOF
|
|
test_cmp expect.err err
|
|
'
|
|
|
|
test_expect_success 'reader notices out-of-bounds fanout' '
|
|
# This is similar to the out-of-bounds fanout test in t5318. The values
|
|
# in adjacent entries should be large but not identical (they
|
|
# are used as hi/lo starts for a binary search, which would then abort
|
|
# immediately).
|
|
corrupt_chunk OIDF 0 $(printf "%02x000000" $(test_seq 0 254)) &&
|
|
test_must_fail git log 2>err &&
|
|
cat >expect <<-\EOF &&
|
|
error: oid fanout out of order: fanout[254] = fe000000 > 5c = fanout[255]
|
|
fatal: multi-pack-index required OID fanout chunk missing or corrupted
|
|
EOF
|
|
test_cmp expect err
|
|
'
|
|
|
|
test_expect_success 'bitmapped packs are stored via the BTMP chunk' '
|
|
test_when_finished "rm -fr repo" &&
|
|
git init repo &&
|
|
(
|
|
cd repo &&
|
|
|
|
for i in 1 2 3 4 5
|
|
do
|
|
test_commit "$i" &&
|
|
git repack -d || return 1
|
|
done &&
|
|
|
|
find $objdir/pack -type f -name "*.idx" | xargs -n 1 basename |
|
|
sort >packs &&
|
|
|
|
git multi-pack-index write --stdin-packs <packs &&
|
|
test_must_fail test-tool read-midx --bitmap $objdir 2>err &&
|
|
cat >expect <<-\EOF &&
|
|
error: MIDX does not contain the BTMP chunk
|
|
EOF
|
|
test_cmp expect err &&
|
|
|
|
git multi-pack-index write --stdin-packs --bitmap \
|
|
--preferred-pack="$(head -n1 <packs)" <packs &&
|
|
test-tool read-midx --bitmap $objdir >actual &&
|
|
for i in $(test_seq $(wc -l <packs))
|
|
do
|
|
sed -ne "${i}s/\.idx$/\.pack/p" packs &&
|
|
echo " bitmap_pos: $((($i - 1) * 3))" &&
|
|
echo " bitmap_nr: 3" || return 1
|
|
done >expect &&
|
|
test_cmp expect actual
|
|
)
|
|
'
|
|
|
|
test_done
|