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The multi-pack-index needs to track which packfiles it indexes. Store these in our first required chunk. Since filenames are not well structured, add padding to keep good alignment in later chunks. Modify the 'git multi-pack-index read' subcommand to output the existence of the pack-file name chunk. Modify t5319-multi-pack-index.sh to reflect this new output and the new expected number of chunks. Defense in depth: A pattern we are using in the multi-pack-index feature is to verify the data as we write it. We want to ensure we never write invalid data to the multi-pack-index. There are many checks that verify that the values we are writing fit the format definitions. This mainly helps developers while working on the feature, but it can also identify issues that only appear when dealing with very large data sets. These large sets are hard to encode into test cases. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
108 lines
2.4 KiB
Bash
Executable file
108 lines
2.4 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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midx_read_expect () {
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NUM_PACKS=$1
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cat >expect <<-EOF
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header: 4d494458 1 1 $NUM_PACKS
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chunks: pack-names
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object-dir: .
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EOF
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test-tool read-midx . >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
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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 pack/test <obj-list) &&
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test_when_finished rm pack/test-$pack.pack pack/test-$pack.idx pack/multi-pack-index &&
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git multi-pack-index --object-dir=. write &&
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midx_read_expect 1
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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 pack/test <obj-list &&
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git multi-pack-index --object-dir=. write &&
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midx_read_expect 1
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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
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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 pack/test-2 <obj-list &&
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git multi-pack-index --object-dir=. write &&
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midx_read_expect 2
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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 pack/test-pack <obj-list
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done
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'
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test_expect_success 'write midx with twelve packs' '
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git multi-pack-index --object-dir=. write &&
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midx_read_expect 12
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'
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test_done
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