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# Nimbus
# Copyright (c) 2018-2019 Status Research & Development GmbH
# Licensed under either of
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
# * MIT license ([LICENSE-MIT](LICENSE-MIT))
# at your option.
# This file may not be copied, modified, or distributed except according to
# those terms.
import
parseopt, strutils, macros, os, times,
chronos, eth/[keys, common, p2p, net/nat], chronicles, nimcrypto/hash,
./db/select_backend,
./vm/interpreter/vm_forks
const
NimbusName* = "Nimbus"
## project name string
NimbusMajor*: int = 0
## is the major number of Nimbus' version.
NimbusMinor*: int = 0
## is the minor number of Nimbus' version.
NimbusPatch*: int = 1
## is the patch number of Nimbus' version.
NimbusVersion* = $NimbusMajor & "." & $NimbusMinor & "." & $NimbusPatch
## is the version of Nimbus as a string.
NimbusIdent* = "$1/$2 ($3/$4)" % [NimbusName, NimbusVersion, hostCPU, hostOS]
## project ident name for networking services
let
NimbusCopyright* = "Copyright (C) 2018-" & $(now().utc.year) & " Status Research & Development GmbH"
## copyright string
NimbusHeader* = NimbusName & " Version " & NimbusVersion &
" [" & hostOS & ": " & hostCPU & ", " & nimbus_db_backend & "]\r\n" &
NimbusCopyright
## is the header which printed, when nimbus binary got executed
const
MainnetBootnodes = [
"enode://a979fb575495b8d6db44f750317d0f4622bf4c2aa3365d6af7c284339968eef29b69ad0dce72a4d8db5ebb4968de0e3bec910127f134779fbcb0cb6d3331163c@52.16.188.185:30303" , # IE
"enode://3f1d12044546b76342d59d4a05532c14b85aa669704bfe1f864fe079415aa2c02d743e03218e57a33fb94523adb54032871a6c51b2cc5514cb7c7e35b3ed0a99@13.93.211.84:30303", # US-WEST
"enode://78de8a0916848093c73790ead81d1928bec737d565119932b98c6b100d944b7a95e94f847f689fc723399d2e31129d182f7ef3863f2b4c820abbf3ab2722344d@191.235.84.50:30303", # BR
"enode://158f8aab45f6d19c6cbf4a089c2670541a8da11978a2f90dbf6a502a4a3bab80d288afdbeb7ec0ef6d92de563767f3b1ea9e8e334ca711e9f8e2df5a0385e8e6@13.75.154.138:30303", # AU
"enode://1118980bf48b0a3640bdba04e0fe78b1add18e1cd99bf22d53daac1fd9972ad650df52176e7c7d89d1114cfef2bc23a2959aa54998a46afcf7d91809f0855082@52.74.57.123:30303", # SG
"enode://979b7fa28feeb35a4741660a16076f1943202cb72b6af70d327f053e248bab9ba81760f39d0701ef1d8f89cc1fbd2cacba0710a12cd5314d5e0c9021aa3637f9@5.1.83.226:30303" # DE
]
RopstenBootnodes = [
"enode://30b7ab30a01c124a6cceca36863ece12c4f5fa68e3ba9b0b51407ccc002eeed3b3102d20a88f1c1d3c3154e2449317b8ef95090e77b312d5cc39354f86d5d606@52.176.7.10:30303", # US-Azure geth
"enode://865a63255b3bb68023b6bffd5095118fcc13e79dcf014fe4e47e065c350c7cc72af2e53eff895f11ba1bbb6a2b33271c1116ee870f266618eadfc2e78aa7349c@52.176.100.77:30303", # US-Azure parity
"enode://6332792c4a00e3e4ee0926ed89e0d27ef985424d97b6a45bf0f23e51f0dcb5e66b875777506458aea7af6f9e4ffb69f43f3778ee73c81ed9d34c51c4b16b0b0f@52.232.243.152:30303", # Parity
"enode://94c15d1b9e2fe7ce56e458b9a3b672ef11894ddedd0c6f247e0f1d3487f52b66208fb4aeb8179fce6e3a749ea93ed147c37976d67af557508d199d9594c35f09@192.81.208.223:30303" # @gpip
]
RinkebyBootnodes = [
"enode://a24ac7c5484ef4ed0c5eb2d36620ba4e4aa13b8c84684e1b4aab0cebea2ae45cb4d375b77eab56516d34bfbd3c1a833fc51296ff084b770b94fb9028c4d25ccf@52.169.42.101:30303", # IE
"enode://343149e4feefa15d882d9fe4ac7d88f885bd05ebb735e547f12e12080a9fa07c8014ca6fd7f373123488102fe5e34111f8509cf0b7de3f5b44339c9f25e87cb8@52.3.158.184:30303", # INFURA
"enode://b6b28890b006743680c52e64e0d16db57f28124885595fa03a562be1d2bf0f3a1da297d56b13da25fb992888fd556d4c1a27b1f39d531bde7de1921c90061cc6@159.89.28.211:30303", # AKASHA
]
DiscoveryV5Bootnodes = [
"enode://06051a5573c81934c9554ef2898eb13b33a34b94cf36b202b69fde139ca17a85051979867720d4bdae4323d4943ddf9aeeb6643633aa656e0be843659795007a@35.177.226.168:30303",
"enode://0cc5f5ffb5d9098c8b8c62325f3797f56509bff942704687b6530992ac706e2cb946b90a34f1f19548cd3c7baccbcaea354531e5983c7d1bc0dee16ce4b6440b@40.118.3.223:30304",
"enode://1c7a64d76c0334b0418c004af2f67c50e36a3be60b5e4790bdac0439d21603469a85fad36f2473c9a80eb043ae60936df905fa28f1ff614c3e5dc34f15dcd2dc@40.118.3.223:30306",
"enode://85c85d7143ae8bb96924f2b54f1b3e70d8c4d367af305325d30a61385a432f247d2c75c45c6b4a60335060d072d7f5b35dd1d4c45f76941f62a4f83b6e75daaf@40.118.3.223:30307"
]
KovanBootnodes = [
"enode://56abaf065581a5985b8c5f4f88bd202526482761ba10be9bfdcd14846dd01f652ec33fde0f8c0fd1db19b59a4c04465681fcef50e11380ca88d25996191c52de@40.71.221.215:30303",
"enode://d07827483dc47b368eaf88454fb04b41b7452cf454e194e2bd4c14f98a3278fed5d819dbecd0d010407fc7688d941ee1e58d4f9c6354d3da3be92f55c17d7ce3@52.166.117.77:30303",
"enode://8fa162563a8e5a05eef3e1cd5abc5828c71344f7277bb788a395cce4a0e30baf2b34b92fe0b2dbbba2313ee40236bae2aab3c9811941b9f5a7e8e90aaa27ecba@52.165.239.18:30303",
"enode://7e2e7f00784f516939f94e22bdc6cf96153603ca2b5df1c7cc0f90a38e7a2f218ffb1c05b156835e8b49086d11fdd1b3e2965be16baa55204167aa9bf536a4d9@52.243.47.56:30303",
"enode://0518a3d35d4a7b3e8c433e7ffd2355d84a1304ceb5ef349787b556197f0c87fad09daed760635b97d52179d645d3e6d16a37d2cc0a9945c2ddf585684beb39ac@40.68.248.100:30303"
]
type
ConfigStatus* = enum
## Configuration status flags
Success, ## Success
EmptyOption, ## No options in category
ErrorUnknownOption, ## Unknown option in command line found
ErrorParseOption, ## Error in parsing command line option
ErrorIncorrectOption, ## Option has incorrect value
Error ## Unspecified error
RpcFlags* {.pure.} = enum
## RPC flags
Enabled ## RPC enabled
Eth ## enable eth_ set of RPC API
Shh ## enable shh_ set of RPC API
Debug ## enable debug_ set of RPC API
RpcConfiguration* = object
## JSON-RPC configuration object
flags*: set[RpcFlags] ## RPC flags
binds*: seq[TransportAddress] ## RPC bind address
PublicNetwork* = enum
CustomNet = 0
MainNet = 1
MordenNet = 2
RopstenNet = 3
RinkebyNet = 4
KovanNet = 42
NetworkFlags* = enum
## Ethereum network flags
NoDiscover, ## Peer discovery disabled
V5Discover, ## Dicovery V5 enabled
DebugFlags* {.pure.} = enum
## Debug selection flags
Enabled, ## Debugging enabled
Test1, ## Test1 enabled
Test2, ## Test2 enabled
Test3 ## Test3 enabled
NetConfiguration* = object
## Network configuration object
flags*: set[NetworkFlags] ## Network flags
bootNodes*: seq[ENode] ## List of bootnodes
bindPort*: uint16 ## Main TCP bind port
discPort*: uint16 ## Discovery UDP bind port
maxPeers*: int ## Maximum allowed number of peers
maxPendingPeers*: int ## Maximum allowed pending peers
networkId*: uint ## Network ID as integer
ident*: string ## Server ident name string
nodeKey*: PrivateKey ## Server private key
nat*: NatStrategy ## NAT strategy
externalIP*: string ## user-provided external IP
DebugConfiguration* = object
## Debug configuration object
flags*: set[DebugFlags] ## Debug flags
logLevel*: LogLevel ## Log level
logFile*: string ## Log file
PruneMode* {.pure.} = enum
Full
Archive
ChainConfig* = object
chainId*: uint
homesteadBlock*: BlockNumber
daoForkBlock*: BlockNumber
daoForkSupport*: bool
# EIP150 implements the Gas price changes (https://github.com/ethereum/EIPs/issues/150)
eip150Block*: BlockNumber
eip150Hash*: Hash256
eip155Block*: BlockNumber
eip158Block*: BlockNumber
byzantiumBlock*: BlockNumber
constantinopleBlock*: BlockNumber
NimbusConfiguration* = ref object
## Main Nimbus configuration object
dataDir*: string
keyFile*: string
prune*: PruneMode
rpc*: RpcConfiguration ## JSON-RPC configuration
net*: NetConfiguration ## Network configuration
debug*: DebugConfiguration ## Debug configuration
const
defaultRpcApi = {RpcFlags.Eth, RpcFlags.Shh}
defaultLogLevel = LogLevel.WARN
var nimbusConfig {.threadvar.}: NimbusConfiguration
proc getConfiguration*(): NimbusConfiguration {.gcsafe.}
proc publicChainConfig*(id: PublicNetwork): ChainConfig =
result = case id
of MainNet:
ChainConfig(
chainId: MainNet.uint,
homesteadBlock: forkBlocks[FkHomestead],
daoForkBlock: forkBlocks[FkDao],
daoForkSupport: true,
eip150Block: forkBlocks[FkTangerine],
eip150Hash: toDigest("2086799aeebeae135c246c65021c82b4e15a2c451340993aacfd2751886514f0"),
eip155Block: forkBlocks[FkSpurious],
eip158Block: forkBlocks[FkSpurious],
byzantiumBlock: forkBlocks[FkByzantium]
)
of RopstenNet:
ChainConfig(
chainId: RopstenNet.uint,
homesteadBlock: 0.u256,
daoForkSupport: true,
eip150Block: 0.u256,
eip150Hash: toDigest("41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d"),
eip155Block: 10.u256,
eip158Block: 10.u256,
byzantiumBlock: 1700000.u256
)
of RinkebyNet:
ChainConfig(
chainId: RinkebyNet.uint,
homesteadBlock: 1.u256,
daoForkSupport: true,
eip150Block: 2.u256,
eip150Hash: toDigest("9b095b36c15eaf13044373aef8ee0bd3a382a5abb92e402afa44b8249c3a90e9"),
eip155Block: 3.u256,
eip158Block: 3.u256,
byzantiumBlock: 1035301.u256
)
else:
error "No chain config for public network", networkId = id
doAssert(false, "No chain config for " & $id)
ChainConfig()
result.chainId = uint(id)
proc processList(v: string, o: var seq[string]) =
## Process comma-separated list of strings.
if len(v) > 0:
for n in v.split({' ', ','}):
if len(n) > 0:
o.add(n)
proc processInteger*(v: string, o: var int): ConfigStatus =
## Convert string to integer.
try:
o = parseInt(v)
result = Success
except:
result = ErrorParseOption
proc processAddressPortsList(v: string,
o: var seq[TransportAddress]): ConfigStatus =
## Convert <hostname:port>;...;<hostname:port> to list of `TransportAddress`.
var list = newSeq[string]()
processList(v, list)
for item in list:
var tas4: seq[TransportAddress]
var tas6: seq[TransportAddress]
try:
tas4 = resolveTAddress(item, IpAddressFamily.IPv4)
except:
discard
try:
tas6 = resolveTAddress(item, IpAddressFamily.IPv6)
except:
discard
if len(tas4) == 0 and len(tas6) == 0:
result = ErrorParseOption
break
else:
for a in tas4: o.add(a)
for a in tas6: o.add(a)
result = Success
proc processRpcApiList(v: string, flags: var set[RpcFlags]): ConfigStatus =
var list = newSeq[string]()
processList(v, list)
result = Success
for item in list:
case item.toLowerAscii()
of "eth": flags.incl RpcFlags.Eth
of "shh": flags.incl RpcFlags.Shh
of "debug": flags.incl RpcFlags.Debug
else:
warn "unknown rpc api", name = item
result = ErrorIncorrectOption
proc processENode(v: string, o: var ENode): ConfigStatus =
## Convert string to ENode.
let res = initENode(v, o)
if res == ENodeStatus.Success:
result = Success
else:
result = ErrorParseOption
proc processENodesList(v: string, o: var seq[ENode]): ConfigStatus =
## Convert comma-separated list of strings to list of ENode.
var
node: ENode
list = newSeq[string]()
processList(v, list)
for item in list:
result = processENode(item, node)
if result == Success:
o.add(node)
else:
break
proc processPrivateKey(v: string, o: var PrivateKey): ConfigStatus =
## Convert hexadecimal string to private key object.
try:
o = initPrivateKey(v)
result = Success
except:
result = ErrorParseOption
# proc processHexBytes(v: string, o: var seq[byte]): ConfigStatus =
# ## Convert hexadecimal string to seq[byte].
# try:
# o = fromHex(v)
# result = Success
# except:
# result = ErrorParseOption
# proc processHexString(v: string, o: var string): ConfigStatus =
# ## Convert hexadecimal string to string.
# try:
# o = parseHexStr(v)
# result = Success
# except:
# result = ErrorParseOption
# proc processJson(v: string, o: var JsonNode): ConfigStatus =
# ## Convert string to JSON.
# try:
# o = parseJson(v)
# result = Success
# except:
# result = ErrorParseOption
proc processPruneList(v: string, flags: var PruneMode): ConfigStatus =
var list = newSeq[string]()
processList(v, list)
result = Success
for item in list:
case item.toLowerAscii()
of "full": flags = PruneMode.Full
of "archive": flags = PruneMode.Archive
else:
warn "unknown prune flags", name = item
result = ErrorIncorrectOption
proc processEthArguments(key, value: string): ConfigStatus =
result = Success
let config = getConfiguration()
case key.toLowerAscii()
of "keyfile":
if fileExists(value):
config.keyFile = value
else:
result = ErrorIncorrectOption
of "datadir":
config.dataDir = value
of "prune":
result = processPruneList(value, config.prune)
else:
result = EmptyOption
proc processRpcArguments(key, value: string): ConfigStatus =
## Processes only `RPC` related command line options
result = Success
let config = getConfiguration()
let skey = key.toLowerAscii()
if skey == "rpc":
if RpcFlags.Enabled notin config.rpc.flags:
config.rpc.flags.incl(RpcFlags.Enabled)
config.rpc.flags.incl(defaultRpcApi)
elif skey == "rpcbind":
config.rpc.binds.setLen(0)
result = processAddressPortsList(value, config.rpc.binds)
elif skey == "rpcapi":
if RpcFlags.Enabled in config.rpc.flags:
config.rpc.flags.excl(defaultRpcApi)
else:
config.rpc.flags.incl(RpcFlags.Enabled)
result = processRpcApiList(value, config.rpc.flags)
else:
result = EmptyOption
proc setBootnodes(onodes: var seq[ENode], nodeUris: openarray[string]) =
var node: ENode
onodes = newSeqOfCap[ENode](nodeUris.len)
for item in nodeUris:
doAssert(processENode(item, node) == Success)
onodes.add(node)
macro availableEnumValues(T: type enum): untyped =
let impl = getTypeImpl(T)[1].getTypeImpl()
result = newNimNode(nnkBracket)
for i in 1 ..< impl.len: result.add(newCall("uint", copyNimTree(impl[i])))
proc toPublicNetwork*(id: uint): PublicNetwork {.inline.} =
if id in availableEnumValues(PublicNetwork):
result = PublicNetwork(id)
proc setNetwork(conf: var NetConfiguration, id: PublicNetwork) =
## Set network id and default network bootnodes
conf.networkId = uint(id)
case id
of MainNet:
conf.bootNodes.setBootnodes(MainnetBootnodes)
of MordenNet:
discard
of RopstenNet:
conf.bootNodes.setBootnodes(RopstenBootnodes)
of RinkebyNet:
conf.bootNodes.setBootnodes(RinkebyBootnodes)
of KovanNet:
conf.bootNodes.setBootnodes(KovanBootnodes)
of CustomNet:
discard
proc setNetwork(conf: var NetConfiguration, id: uint) =
## Set network id and default network bootnodes
let pubNet = toPublicNetwork(id)
if pubNet == CustomNet:
conf.networkId = id
else:
conf.setNetwork(pubNet)
proc processNetArguments(key, value: string): ConfigStatus =
## Processes only `Networking` related command line options
result = Success
let config = getConfiguration()
let skey = key.toLowerAscii()
if skey == "bootnodes":
result = processENodesList(value, config.net.bootNodes)
elif skey == "bootnodesv4":
result = processENodesList(value, config.net.bootNodes)
elif skey == "bootnodesv5":
result = processENodesList(value, config.net.bootNodes)
elif skey == "testnet":
config.net.setNetwork(RopstenNet)
elif skey == "mainnet":
config.net.setNetwork(MainNet)
elif skey == "ropsten":
config.net.setNetwork(RopstenNet)
elif skey == "rinkeby":
config.net.setNetwork(RinkebyNet)
elif skey == "morden":
config.net.setNetwork(MordenNet)
elif skey == "kovan":
config.net.setNetwork(KovanNet)
elif skey == "networkid":
var res = 0
result = processInteger(value, res)
if result == Success:
config.net.setNetwork(uint(result))
elif skey == "nodiscover":
config.net.flags.incl(NoDiscover)
elif skey == "v5discover":
config.net.flags.incl(V5Discover)
config.net.bootNodes.setBootnodes(DiscoveryV5Bootnodes)
elif skey == "port":
var res = 0
result = processInteger(value, res)
if result == Success:
config.net.bindPort = uint16(res and 0xFFFF)
elif skey == "discport":
var res = 0
result = processInteger(value, res)
if result == Success:
config.net.discPort = uint16(res and 0xFFFF)
elif skey == "maxpeers":
var res = 0
result = processInteger(value, res)
if result == Success:
config.net.maxPeers = res
elif skey == "maxpendpeers":
var res = 0
result = processInteger(value, res)
if result == Success:
config.net.maxPendingPeers = res
elif skey == "nodekey":
var res: PrivateKey
result = processPrivateKey(value, res)
if result == Success:
config.net.nodeKey = res
elif skey == "ident":
config.net.ident = value
elif skey == "nat":
case value.toLowerAscii:
of "any":
config.net.nat = NatAny
of "upnp":
config.net.nat = NatUpnp
of "pmp":
config.net.nat = NatPmp
of "none":
config.net.nat = NatNone
else:
if isIpAddress(value):
config.net.externalIP = value
config.net.nat = NatNone
else:
error "not a valid NAT mechanism, nor a valid IP address", value
result = ErrorParseOption
else:
result = EmptyOption
proc processDebugArguments(key, value: string): ConfigStatus =
## Processes only `Debug` related command line options
let config = getConfiguration()
result = Success
let skey = key.toLowerAscii()
if skey == "debug":
config.debug.flags.incl(DebugFlags.Enabled)
elif skey == "test":
var res = newSeq[string]()
processList(value, res)
for item in res:
if item == "test1":
config.debug.flags.incl(DebugFlags.Test1)
elif item == "test2":
config.debug.flags.incl(DebugFlags.Test2)
elif item == "test3":
config.debug.flags.incl(DebugFlags.Test3)
elif skey == "log-level":
try:
let logLevel = parseEnum[LogLevel](value)
if logLevel >= enabledLogLevel:
config.debug.logLevel = logLevel
else:
result = ErrorIncorrectOption
except ValueError:
result = ErrorIncorrectOption
elif skey == "log-file":
if len(value) == 0:
result = ErrorIncorrectOption
else:
config.debug.logFile = value
proc dumpConfiguration*(): string =
## Dumps current configuration as string
let config = getConfiguration()
result = repr config
template processArgument(processor, key, value, msg: untyped) =
## Checks if arguments got processed successfully
var res = processor(string(key), string(value))
if res == Success:
result = res
continue
elif res == ErrorParseOption:
msg = "Error processing option '" & key & "' with value '" & value & "'."
result = res
break
elif res == ErrorIncorrectOption:
msg = "Incorrect value for option '" & key & "': '" & value & "'."
result = res
break
proc getDefaultDataDir*(): string =
when defined(windows):
"AppData" / "Roaming" / "Nimbus" / "DB"
elif defined(macosx):
"Library" / "Application Support" / "Nimbus" / "DB"
else:
".cache" / "nimbus" / "db"
proc initConfiguration(): NimbusConfiguration =
## Allocates and initializes `NimbusConfiguration` with default values
result = new NimbusConfiguration
## RPC defaults
result.rpc.flags = {}
result.rpc.binds = @[initTAddress("127.0.0.1:8545")]
## Network defaults
result.net.setNetwork(MainNet)
result.net.maxPeers = 25
result.net.maxPendingPeers = 0
result.net.bindPort = 30303'u16
result.net.discPort = 30303'u16
result.net.ident = NimbusIdent
result.net.nat = NatAny
const dataDir = getDefaultDataDir()
result.dataDir = getHomeDir() / dataDir
result.prune = PruneMode.Full
## Debug defaults
result.debug.flags = {}
result.debug.logLevel = defaultLogLevel
proc getConfiguration*(): NimbusConfiguration =
## Retreive current configuration object `NimbusConfiguration`.
if isNil(nimbusConfig):
nimbusConfig = initConfiguration()
result = nimbusConfig
proc getHelpString*(): string =
var logLevels: seq[string]
for level in LogLevel:
if level < enabledLogLevel:
continue
logLevels.add($level)
result = """
USAGE:
nimbus [options]
ETHEREUM OPTIONS:
--keyfile:<value> Use keyfile storage file
--datadir:<value> Base directory for all blockchain-related data
--prune:<value> Blockchain prune mode(full or archive)
NETWORKING OPTIONS:
--bootnodes:<value> Comma separated enode URLs for P2P discovery bootstrap (set v4+v5 instead for light servers)
--bootnodesv4:<value> Comma separated enode URLs for P2P v4 discovery bootstrap (light server, full nodes)
--bootnodesv5:<value> Comma separated enode URLs for P2P v5 discovery bootstrap (light server, light nodes)
--port:<value> Network listening TCP port (default: 30303)
--discport:<value> Network listening UDP port (defaults to --port argument)
--maxpeers:<value> Maximum number of network peers (default: 25)
--maxpendpeers:<value> Maximum number of pending connection attempts (default: 0)
--nat:<value> NAT port mapping mechanism (any|none|upnp|pmp|<external IP>) (default: "any")
--nodiscover Disables the peer discovery mechanism (manual peer addition)
--v5discover Enables the experimental RLPx V5 (Topic Discovery) mechanism
--nodekey:<value> P2P node private key (as hexadecimal string)
--testnet Use Ethereum Ropsten Test Network (default)
--rinkeby Use Ethereum Rinkeby Test Network
--ropsten Use Ethereum Test Network (Ropsten Network)
--mainnet Use Ethereum Main Network
--morden Use Ethereum Morden Test Network
--networkid:<value> Network identifier (integer, 1=Frontier, 2=Morden (disused), 3=Ropsten, 4=Rinkeby) (default: 3)
--ident:<value> Client identifier (default is '$1')
API AND CONSOLE OPTIONS:
--rpc Enable the HTTP-RPC server
--rpcbind:<value> HTTP-RPC server will bind to given comma separated address:port pairs (default: 127.0.0.1:8545)
--rpcapi:<value> Enable specific set of rpc api from comma separated list(eth, shh, debug)
LOGGING AND DEBUGGING OPTIONS:
--log-level:<value> One of: $2 (default: $3)
--log-file:<value> Optional log file, replacing stdout
--debug Enable debug mode
--test:<value> Perform specified test
""" % [
NimbusIdent,
join(logLevels, ", "),
$defaultLogLevel
]
proc processArguments*(msg: var string): ConfigStatus =
## Process command line argument and update `NimbusConfiguration`.
let config = getConfiguration()
# At this point `config.net.bootnodes` is likely populated with network default
# bootnodes. We want to override those if at least one custom bootnode is
# specified on the command line. We temporarily set `config.net.bootNodes`
# to empty seq, and in the end restore it if no bootnodes were spricified on
# the command line.
# TODO: This is pretty hacky and it's better to refactor it to make a clear
# distinction between default and custom bootnodes.
var tempBootNodes: seq[ENode]
swap(tempBootNodes, config.net.bootNodes)
# The same trick is done to discPort
config.net.discPort = 0
var opt = initOptParser()
var length = 0
for kind, key, value in opt.getopt():
result = Error
case kind
of cmdArgument:
discard
of cmdLongOption, cmdShortOption:
inc(length)
case key.toLowerAscii()
of "help", "h":
msg = getHelpString()
result = Success
break
of "version", "ver", "v":
msg = NimbusVersion
result = Success
break
else:
processArgument processEthArguments, key, value, msg
processArgument processRpcArguments, key, value, msg
processArgument processNetArguments, key, value, msg
processArgument processDebugArguments, key, value, msg
if result != Success:
msg = "Unknown option: '" & key & "'."
of cmdEnd:
doAssert(false) # we're never getting this kind here
if config.net.bootNodes.len == 0:
# No custom bootnodes were specified on the command line, restore to
# previous values
swap(tempBootNodes, config.net.bootNodes)
if config.net.discPort == 0:
config.net.discPort = config.net.bindPort
proc processConfiguration*(pathname: string): ConfigStatus =
## Process configuration file `pathname` and update `NimbusConfiguration`.
result = Success
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