nimbus-eth1/premix/premix.nim

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Nim
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import
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json, downloader, stint, strutils, os,
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../nimbus/tracer, chronicles, prestate,
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eth/common, premixcore
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proc generateGethData(thisBlock: Block, blockNumber: Uint256, accounts: JsonNode): JsonNode =
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let
receipts = toJson(thisBlock.receipts)
let geth = %{
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"blockNumber": %blockNumber.toHex,
"txTraces": thisBlock.traces,
"receipts": receipts,
"block": thisBlock.jsonData,
"accounts": accounts
}
result = geth
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proc printDebugInstruction(blockNumber: Uint256) =
var text = """
Successfully created debugging environment for block $1.
You can continue to find nimbus EVM bug by viewing premix report page `./index.html`.
After that you can try to debug that single block using `nim c -r debug block$1.json` command.
Happy bug hunting
""" % [$blockNumber]
echo text
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proc main() =
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if paramCount() == 0:
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echo "usage: premix debugxxx.json"
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quit(QuitFailure)
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try:
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let
nimbus = json.parseFile(paramStr(1))
blockNumber = UInt256.fromHex(nimbus["blockNumber"].getStr())
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thisBlock = requestBlock(blockNumber, {DownloadReceipts, DownloadTxTrace})
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accounts = requestPostState(thisBlock)
geth = generateGethData(thisBlock, blockNumber, accounts)
parentNumber = blockNumber - 1.u256
parentBlock = requestBlock(parentNumber)
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processNimbusData(nimbus)
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# premix data goes to report page
generatePremixData(nimbus, geth)
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# prestate data goes to debug tool and contains data
# needed to execute single block
generatePrestate(nimbus, geth, blockNumber, parentBlock.header, thisBlock.header, thisBlock.body)
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printDebugInstruction(blockNumber)
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except:
echo getCurrentExceptionMsg()
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main()