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t5325: check both on-disk and in-memory reverse index
Right now, the test suite can be run with 'GIT_TEST_WRITE_REV_INDEX=1' in the environment, which causes all operations which write a pack to also write a .rev file. To prepare for when that eventually becomes the default, we should continue to test the in-memory reverse index, too, in order to avoid losing existing coverage. Unfortunately, explicit existing coverage is rather sparse, so only a basic test is added that compares the result of git rev-list --objects --no-object-names --all | git cat-file --batch-check='%(objectsize:disk) %(objectname)' with and without an on-disk reverse index. Suggested-by: Jeff King <peff@peff.net> Helped-by: Jeff King <peff@peff.net> Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -94,4 +94,27 @@ test_expect_success 'reverse index is not generated when available on disk' '
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--batch-check="%(objectsize:disk)" <tip
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'
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test_expect_success 'revindex in-memory vs on-disk' '
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git init repo &&
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test_when_finished "rm -fr repo" &&
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(
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cd repo &&
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test_commit commit &&
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git rev-list --objects --no-object-names --all >objects &&
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git -c pack.writeReverseIndex=false repack -ad &&
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test_path_is_missing $packdir/pack-*.rev &&
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git cat-file --batch-check="%(objectsize:disk) %(objectname)" \
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<objects >in-core &&
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git -c pack.writeReverseIndex=true repack -ad &&
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test_path_is_file $packdir/pack-*.rev &&
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git cat-file --batch-check="%(objectsize:disk) %(objectname)" \
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<objects >on-disk &&
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test_cmp on-disk in-core
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)
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'
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test_done
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