nimbus-eth1/premix/persist.nim

115 lines
3.0 KiB
Nim

# use this module to quickly populate db with data from geth/parity
import
chronicles,
../nimbus/errors,
../nimbus/core/chain,
../nimbus/common,
../nimbus/db/[core_db/persistent, storage_types],
configuration # must be late (compilation annoyance)
when defined(graphql):
import graphql_downloader
else:
import downloader
# `lmdb` is not used, anymore
#
# const
# manualCommit = nimbus_db_backend == "lmdb"
#
# template persistToDb(db: ChainDB, body: untyped) =
# when manualCommit:
# if not db.txBegin(): doAssert(false)
# body
# when manualCommit:
# if not db.txCommit(): doAssert(false)
template persistToDb(db: CoreDbRef, body: untyped) =
block: body
proc main() {.used.} =
# 97 block with uncles
# 46147 block with first transaction
# 46400 block with transaction
# 46402 block with first contract: failed
# 47205 block with first success contract
# 48712 block with 5 transactions
# 48915 block with contract
# 49018 first problematic block
# 49439 first block with contract call
# 52029 first block with receipts logs
# 66407 failed transaction
let conf = configuration.getConfiguration()
let com = CommonRef.new(
newCoreDbRef(LegacyDbPersistent, conf.dataDir),
false, conf.netId, networkParams(conf.netId))
# move head to block number ...
if conf.head != 0.u256:
var parentBlock = requestBlock(conf.head)
discard com.db.setHead(parentBlock.header)
if canonicalHeadHashKey().toOpenArray notin com.db.kvt:
persistToDb(com.db):
com.initializeEmptyDb()
doAssert(canonicalHeadHashKey().toOpenArray in com.db.kvt)
var head = com.db.getCanonicalHead()
var blockNumber = head.blockNumber + 1
var chain = newChain(com)
let numBlocksToCommit = conf.numCommits
var headers = newSeqOfCap[BlockHeader](numBlocksToCommit)
var bodies = newSeqOfCap[BlockBody](numBlocksToCommit)
var one = 1.u256
var numBlocks = 0
var counter = 0
while true:
var thisBlock = requestBlock(blockNumber)
headers.add thisBlock.header
bodies.add thisBlock.body
info "REQUEST HEADER", blockNumber=blockNumber, txs=thisBlock.body.transactions.len
inc numBlocks
blockNumber += one
if numBlocks == numBlocksToCommit:
persistToDb(com.db):
if chain.persistBlocks(headers, bodies) != ValidationResult.OK:
raise newException(ValidationError, "Error when validating blocks")
numBlocks = 0
headers.setLen(0)
bodies.setLen(0)
inc counter
if conf.maxBlocks != 0 and counter >= conf.maxBlocks:
break
if numBlocks > 0:
persistToDb(com.db):
if chain.persistBlocks(headers, bodies) != ValidationResult.OK:
raise newException(ValidationError, "Error when validating blocks")
when isMainModule:
var message: string
## Processing command line arguments
if configuration.processArguments(message) != Success:
echo message
quit(QuitFailure)
else:
if len(message) > 0:
echo message
quit(QuitSuccess)
try:
main()
except CatchableError:
echo getCurrentExceptionMsg()