mirror of https://github.com/git/git.git
77 lines
2.3 KiB
Bash
Executable File
77 lines
2.3 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2022 Han Xin
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#
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test_description='git unpack-objects with large objects'
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. ./test-lib.sh
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prepare_dest () {
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test_when_finished "rm -rf dest.git" &&
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git init --bare dest.git &&
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git -C dest.git config core.bigFileThreshold "$1"
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}
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test_expect_success "create large objects (1.5 MB) and PACK" '
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test-tool genrandom foo 1500000 >big-blob &&
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test_commit --append foo big-blob &&
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test-tool genrandom bar 1500000 >big-blob &&
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test_commit --append bar big-blob &&
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PACK=$(echo HEAD | git pack-objects --revs pack) &&
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git verify-pack -v pack-$PACK.pack >out &&
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sed -n -e "s/^\([0-9a-f][0-9a-f]*\).*\(commit\|tree\|blob\).*/\1/p" \
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<out >obj-list
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'
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test_expect_success 'set memory limitation to 1MB' '
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GIT_ALLOC_LIMIT=1m &&
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export GIT_ALLOC_LIMIT
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'
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test_expect_success 'unpack-objects failed under memory limitation' '
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prepare_dest 2m &&
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test_must_fail git -C dest.git unpack-objects <pack-$PACK.pack 2>err &&
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grep "fatal: attempting to allocate" err
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'
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test_expect_success 'unpack-objects works with memory limitation in dry-run mode' '
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prepare_dest 2m &&
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git -C dest.git unpack-objects -n <pack-$PACK.pack &&
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test_stdout_line_count = 0 find dest.git/objects -type f &&
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test_dir_is_empty dest.git/objects/pack
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'
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test_expect_success 'unpack big object in stream' '
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prepare_dest 1m &&
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git -C dest.git unpack-objects <pack-$PACK.pack &&
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test_dir_is_empty dest.git/objects/pack
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'
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BATCH_CONFIGURATION='-c core.fsync=loose-object -c core.fsyncmethod=batch'
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test_expect_success 'unpack big object in stream (core.fsyncmethod=batch)' '
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prepare_dest 1m &&
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GIT_TRACE2_EVENT="$(pwd)/trace2.txt" \
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git -C dest.git $BATCH_CONFIGURATION unpack-objects <pack-$PACK.pack &&
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grep fsync/hardware-flush trace2.txt &&
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test_dir_is_empty dest.git/objects/pack &&
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git -C dest.git cat-file --batch-check="%(objectname)" <obj-list >current &&
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cmp obj-list current
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'
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test_expect_success 'do not unpack existing large objects' '
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prepare_dest 1m &&
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git -C dest.git index-pack --stdin <pack-$PACK.pack &&
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git -C dest.git unpack-objects <pack-$PACK.pack &&
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# The destination came up with the exact same pack...
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DEST_PACK=$(echo dest.git/objects/pack/pack-*.pack) &&
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test_cmp pack-$PACK.pack $DEST_PACK &&
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# ...and wrote no loose objects
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test_stdout_line_count = 0 find dest.git/objects -type f ! -name "pack-*"
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'
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test_done
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