72 lines
2.1 KiB
Nim
72 lines
2.1 KiB
Nim
# fluffy
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# Copyright (c) 2024 Status Research & Development GmbH
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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## File do be deleted when pruneDeprecatedAccumulatorRecords has been active
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## for long enough that most users have upgraded and as a result cleaned up
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## their database.
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{.push raises: [].}
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import
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nimcrypto/[sha2, hash],
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stint,
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chronicles,
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ssz_serialization,
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../../../common/common_types,
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../../../database/content_db,
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../validation/historical_hashes_accumulator
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type
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ContentType = enum
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blockHeader = 0x00
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blockBody = 0x01
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receipts = 0x02
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epochRecordDeprecated = 0x03
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BlockKey = object
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blockHash: BlockHash
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EpochRecordKeyDeprecated = object
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epochHash: Digest
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ContentKey = object
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case contentType: ContentType
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of blockHeader:
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blockHeaderKey: BlockKey
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of blockBody:
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blockBodyKey: BlockKey
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of receipts:
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receiptsKey: BlockKey
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of epochRecordDeprecated:
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epochRecordKeyDeprecated: EpochRecordKeyDeprecated
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func encode(contentKey: ContentKey): ContentKeyByteList =
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ContentKeyByteList.init(SSZ.encode(contentKey))
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func toContentId(contentKey: ContentKeyByteList): ContentId =
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let idHash = sha2.sha256.digest(contentKey.asSeq())
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readUintBE[256](idHash.data)
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proc pruneDeprecatedAccumulatorRecords*(
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accumulator: FinishedAccumulator, contentDB: ContentDB
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) =
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info "Pruning deprecated accumulator records"
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for i, hash in accumulator.historicalEpochs:
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let
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root = Digest(data: hash)
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epochRecordKey = ContentKey(
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contentType: epochRecordDeprecated,
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epochRecordKeyDeprecated: EpochRecordKeyDeprecated(epochHash: root),
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)
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encodedKey = encode(epochRecordKey)
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contentId = toContentId(encodedKey)
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contentDB.del(contentId)
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info "Pruning deprecated accumulator records finished"
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