90 lines
3.1 KiB
Nim
90 lines
3.1 KiB
Nim
# beacon_chain
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# Copyright (c) 2018-2023 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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import
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std/[json, strutils, times, sequtils],
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chronos, confutils, chronicles,
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web3, web3/ethtypes as web3Types,
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eth/async_utils,
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../beacon_chain/beacon_chain_db,
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../beacon_chain/networking/network_metadata,
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../beacon_chain/el/el_manager,
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../beacon_chain/spec/[presets, helpers]
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type
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CliFlags = object
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network* {.
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defaultValue: "mainnet"
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name: "network".}: string
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elUrls* {.
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name: "el".}: seq[EngineApiUrlConfigValue]
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jwtSecret* {.
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name: "jwt-secret".}: Option[InputFile]
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outDepositsFile* {.
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name: "out-deposits-file".}: Option[OutFile]
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configFile* {.
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desc: "Loads the configuration from a TOML file"
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name: "config-file" .}: Option[InputFile]
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proc main(flags: CliFlags) {.async.} =
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let
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db = BeaconChainDB.new("", inMemory = true)
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metadata = getMetadataForNetwork(flags.network)
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beaconTimeFn = proc(): BeaconTime =
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# BEWARE of this hack
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# The EL manager consults the current time in order to determine when the
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# transition configuration exchange should start. We assume Bellatrix has
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# just arrived which should trigger the configuration exchange and allow
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# the downloader to connect to ELs serving the Engine API.
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start_beacon_time(Slot(metadata.cfg.BELLATRIX_FORK_EPOCH * SLOTS_PER_EPOCH))
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let
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elManager = ELManager.new(
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metadata.cfg,
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metadata.depositContractBlock,
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metadata.depositContractBlockHash,
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db,
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toFinalEngineApiUrls(flags.elUrls, flags.jwtSecret),
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eth1Network = metadata.eth1Network)
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elManager.start()
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var depositsFile: File
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if flags.outDepositsFile.isSome:
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depositsFile = open(string flags.outDepositsFile.get, fmWrite)
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depositsFile.write(
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"block", ",",
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"validatorKey", ",",
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"withdrawalCredentials", "\n")
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depositsFile.flushFile()
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var blockIdx = 0
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while not elManager.isSynced():
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await sleepAsync chronos.seconds(1)
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if flags.outDepositsFile.isSome and
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elManager.eth1ChainBlocks.len > blockIdx:
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for i in blockIdx ..< elManager.eth1ChainBlocks.len:
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for deposit in elManager.eth1ChainBlocks[i].deposits:
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depositsFile.write(
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$elManager.eth1ChainBlocks[i].number, ",",
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$deposit.pubkey, ",",
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$deposit.withdrawal_credentials, "\n")
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depositsFile.flushFile()
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blockIdx = elManager.eth1ChainBlocks.len
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info "All deposits downloaded"
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waitFor main(
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load(CliFlags,
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secondarySources = proc (
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config: CliFlags, sources: ref SecondarySources
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) {.raises: [ConfigurationError].} =
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if config.configFile.isSome:
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sources.addConfigFile(Toml, config.configFile.get)))
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