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103 lines
2.8 KiB
103 lines
2.8 KiB
#!/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_PASSES_SANITIZE_LEAK=true |
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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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check_fsync_events () { |
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local trace="$1" && |
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shift && |
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cat >expect && |
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sed -n \ |
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-e '/^{"event":"data",.*"category":"fsync",/ { |
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s/.*"category":"fsync",//; |
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s/}$//; |
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p; |
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}' \ |
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<"$trace" >actual && |
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test_cmp expect actual |
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} |
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BATCH_CONFIGURATION='-c core.fsync=loose-object -c core.fsyncmethod=batch' |
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test_expect_success 'unpack big object in stream (core.fsyncmethod=batch)' ' |
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prepare_dest 1m && |
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GIT_TRACE2_EVENT="$(pwd)/trace2.txt" \ |
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GIT_TEST_FSYNC=true \ |
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git -C dest.git $BATCH_CONFIGURATION unpack-objects <pack-$PACK.pack && |
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if grep "core.fsyncMethod = batch is unsupported" trace2.txt |
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then |
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flush_count=7 |
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else |
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flush_count=1 |
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fi && |
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check_fsync_events trace2.txt <<-EOF && |
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"key":"fsync/writeout-only","value":"6" |
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"key":"fsync/hardware-flush","value":"$flush_count" |
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EOF |
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test_dir_is_empty dest.git/objects/pack && |
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git -C dest.git cat-file --batch-check="%(objectname)" <obj-list >current && |
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cmp obj-list current |
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' |
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test_expect_success 'do not unpack existing large objects' ' |
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prepare_dest 1m && |
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git -C dest.git index-pack --stdin <pack-$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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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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