use ChainExportRangeInternal to write snapshots directly to disk#67

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ognots wants to merge 7 commits intomainfrom

feat/chain-export-range

Commits on Mar 29, 2023

use ChainExportRangeInternal to write snapshots directly to disk
ognots
committed

Commits on Apr 1, 2023

fixes bugs and only uploads compressed car
ognots
committed

Commits on Apr 6, 2023

don't read file when discarding output, at least for now
ognots
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Commits on Apr 11, 2023

fixes to tailHeight and including messages/receipts/stateroots
ognots
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Commits on Apr 20, 2023

implement a custom io.Reader for snapshot cars
ognots
committed

Commits on Apr 21, 2023

write zstd to file, fix blocking select in custom reader
ognots
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Commits on Apr 22, 2023

make snapshotReader have reader attribute
ognots
committed