erigon-pulse/cmd/utils/flags.go
Péter Szilágyi 289b30715d Godeps, vendor: convert dependency management to trash (#3198)
This commit converts the dependency management from Godeps to the vendor
folder, also switching the tool from godep to trash. Since the upstream tool
lacks a few features proposed via a few PRs, until those PRs are merged in
(if), use github.com/karalabe/trash.

You can update dependencies via trash --update.

All dependencies have been updated to their latest version.

Parts of the build system are reworked to drop old notions of Godeps and
invocation of the go vet command so that it doesn't run against the vendor
folder, as that will just blow up during vetting.

The conversion drops OpenCL (and hence GPU mining support) from ethash and our
codebase. The short reasoning is that there's noone to maintain and having
opencl libs in our deps messes up builds as go install ./... tries to build
them, failing with unsatisfied link errors for the C OpenCL deps.

golang.org/x/net/context is not vendored in. We expect it to be fetched by the
user (i.e. using go get). To keep ci.go builds reproducible the package is
"vendored" in build/_vendor.
2016-10-28 19:05:01 +02:00

871 lines
27 KiB
Go

// Copyright 2015 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package utils
import (
"crypto/ecdsa"
"fmt"
"io/ioutil"
"math"
"math/big"
"math/rand"
"os"
"path/filepath"
"runtime"
"strconv"
"strings"
"time"
"github.com/ethereum/ethash"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/metrics"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/p2p/discover"
"github.com/ethereum/go-ethereum/p2p/nat"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/pow"
"github.com/ethereum/go-ethereum/rpc"
"github.com/ethereum/go-ethereum/whisper"
"gopkg.in/urfave/cli.v1"
)
func init() {
cli.AppHelpTemplate = `{{.Name}} {{if .Flags}}[global options] {{end}}command{{if .Flags}} [command options]{{end}} [arguments...]
VERSION:
{{.Version}}
COMMANDS:
{{range .Commands}}{{.Name}}{{with .ShortName}}, {{.}}{{end}}{{ "\t" }}{{.Usage}}
{{end}}{{if .Flags}}
GLOBAL OPTIONS:
{{range .Flags}}{{.}}
{{end}}{{end}}
`
cli.CommandHelpTemplate = `{{.Name}}{{if .Subcommands}} command{{end}}{{if .Flags}} [command options]{{end}} [arguments...]
{{if .Description}}{{.Description}}
{{end}}{{if .Subcommands}}
SUBCOMMANDS:
{{range .Subcommands}}{{.Name}}{{with .ShortName}}, {{.}}{{end}}{{ "\t" }}{{.Usage}}
{{end}}{{end}}{{if .Flags}}
OPTIONS:
{{range .Flags}}{{.}}
{{end}}{{end}}
`
}
// NewApp creates an app with sane defaults.
func NewApp(gitCommit, usage string) *cli.App {
app := cli.NewApp()
app.Name = filepath.Base(os.Args[0])
app.Author = ""
//app.Authors = nil
app.Email = ""
app.Version = Version
if gitCommit != "" {
app.Version += "-" + gitCommit[:8]
}
app.Usage = usage
return app
}
// These are all the command line flags we support.
// If you add to this list, please remember to include the
// flag in the appropriate command definition.
//
// The flags are defined here so their names and help texts
// are the same for all commands.
var (
// General settings
DataDirFlag = DirectoryFlag{
Name: "datadir",
Usage: "Data directory for the databases and keystore",
Value: DirectoryString{node.DefaultDataDir()},
}
KeyStoreDirFlag = DirectoryFlag{
Name: "keystore",
Usage: "Directory for the keystore (default = inside the datadir)",
}
NetworkIdFlag = cli.IntFlag{
Name: "networkid",
Usage: "Network identifier (integer, 0=Olympic, 1=Frontier, 2=Morden)",
Value: eth.NetworkId,
}
OlympicFlag = cli.BoolFlag{
Name: "olympic",
Usage: "Olympic network: pre-configured pre-release test network",
}
TestNetFlag = cli.BoolFlag{
Name: "testnet",
Usage: "Morden network: pre-configured test network with modified starting nonces (replay protection)",
}
DevModeFlag = cli.BoolFlag{
Name: "dev",
Usage: "Developer mode: pre-configured private network with several debugging flags",
}
IdentityFlag = cli.StringFlag{
Name: "identity",
Usage: "Custom node name",
}
NatspecEnabledFlag = cli.BoolFlag{
Name: "natspec",
Usage: "Enable NatSpec confirmation notice",
}
DocRootFlag = DirectoryFlag{
Name: "docroot",
Usage: "Document Root for HTTPClient file scheme",
Value: DirectoryString{homeDir()},
}
FastSyncFlag = cli.BoolFlag{
Name: "fast",
Usage: "Enable fast syncing through state downloads",
}
LightKDFFlag = cli.BoolFlag{
Name: "lightkdf",
Usage: "Reduce key-derivation RAM & CPU usage at some expense of KDF strength",
}
// Performance tuning settings
CacheFlag = cli.IntFlag{
Name: "cache",
Usage: "Megabytes of memory allocated to internal caching (min 16MB / database forced)",
Value: 128,
}
TrieCacheGenFlag = cli.IntFlag{
Name: "trie-cache-gens",
Usage: "Number of trie node generations to keep in memory",
Value: int(state.MaxTrieCacheGen),
}
// Fork settings
SupportDAOFork = cli.BoolFlag{
Name: "support-dao-fork",
Usage: "Updates the chain rules to support the DAO hard-fork",
}
OpposeDAOFork = cli.BoolFlag{
Name: "oppose-dao-fork",
Usage: "Updates the chain rules to oppose the DAO hard-fork",
}
// Miner settings
MiningEnabledFlag = cli.BoolFlag{
Name: "mine",
Usage: "Enable mining",
}
MinerThreadsFlag = cli.IntFlag{
Name: "minerthreads",
Usage: "Number of CPU threads to use for mining",
Value: runtime.NumCPU(),
}
TargetGasLimitFlag = cli.StringFlag{
Name: "targetgaslimit",
Usage: "Target gas limit sets the artificial target gas floor for the blocks to mine",
Value: params.GenesisGasLimit.String(),
}
AutoDAGFlag = cli.BoolFlag{
Name: "autodag",
Usage: "Enable automatic DAG pregeneration",
}
EtherbaseFlag = cli.StringFlag{
Name: "etherbase",
Usage: "Public address for block mining rewards (default = first account created)",
Value: "0",
}
GasPriceFlag = cli.StringFlag{
Name: "gasprice",
Usage: "Minimal gas price to accept for mining a transactions",
Value: new(big.Int).Mul(big.NewInt(20), common.Shannon).String(),
}
ExtraDataFlag = cli.StringFlag{
Name: "extradata",
Usage: "Block extra data set by the miner (default = client version)",
}
// Account settings
UnlockedAccountFlag = cli.StringFlag{
Name: "unlock",
Usage: "Comma separated list of accounts to unlock",
Value: "",
}
PasswordFileFlag = cli.StringFlag{
Name: "password",
Usage: "Password file to use for non-inteactive password input",
Value: "",
}
VMForceJitFlag = cli.BoolFlag{
Name: "forcejit",
Usage: "Force the JIT VM to take precedence",
}
VMJitCacheFlag = cli.IntFlag{
Name: "jitcache",
Usage: "Amount of cached JIT VM programs",
Value: 64,
}
VMEnableJitFlag = cli.BoolFlag{
Name: "jitvm",
Usage: "Enable the JIT VM",
}
// logging and debug settings
MetricsEnabledFlag = cli.BoolFlag{
Name: metrics.MetricsEnabledFlag,
Usage: "Enable metrics collection and reporting",
}
FakePoWFlag = cli.BoolFlag{
Name: "fakepow",
Usage: "Disables proof-of-work verification",
}
// RPC settings
RPCEnabledFlag = cli.BoolFlag{
Name: "rpc",
Usage: "Enable the HTTP-RPC server",
}
RPCListenAddrFlag = cli.StringFlag{
Name: "rpcaddr",
Usage: "HTTP-RPC server listening interface",
Value: node.DefaultHTTPHost,
}
RPCPortFlag = cli.IntFlag{
Name: "rpcport",
Usage: "HTTP-RPC server listening port",
Value: node.DefaultHTTPPort,
}
RPCCORSDomainFlag = cli.StringFlag{
Name: "rpccorsdomain",
Usage: "Comma separated list of domains from which to accept cross origin requests (browser enforced)",
Value: "",
}
RPCApiFlag = cli.StringFlag{
Name: "rpcapi",
Usage: "API's offered over the HTTP-RPC interface",
Value: rpc.DefaultHTTPApis,
}
IPCDisabledFlag = cli.BoolFlag{
Name: "ipcdisable",
Usage: "Disable the IPC-RPC server",
}
IPCApiFlag = cli.StringFlag{
Name: "ipcapi",
Usage: "APIs offered over the IPC-RPC interface",
Value: rpc.DefaultIPCApis,
}
IPCPathFlag = DirectoryFlag{
Name: "ipcpath",
Usage: "Filename for IPC socket/pipe within the datadir (explicit paths escape it)",
Value: DirectoryString{"geth.ipc"},
}
WSEnabledFlag = cli.BoolFlag{
Name: "ws",
Usage: "Enable the WS-RPC server",
}
WSListenAddrFlag = cli.StringFlag{
Name: "wsaddr",
Usage: "WS-RPC server listening interface",
Value: node.DefaultWSHost,
}
WSPortFlag = cli.IntFlag{
Name: "wsport",
Usage: "WS-RPC server listening port",
Value: node.DefaultWSPort,
}
WSApiFlag = cli.StringFlag{
Name: "wsapi",
Usage: "API's offered over the WS-RPC interface",
Value: rpc.DefaultHTTPApis,
}
WSAllowedOriginsFlag = cli.StringFlag{
Name: "wsorigins",
Usage: "Origins from which to accept websockets requests",
Value: "",
}
ExecFlag = cli.StringFlag{
Name: "exec",
Usage: "Execute JavaScript statement (only in combination with console/attach)",
}
PreloadJSFlag = cli.StringFlag{
Name: "preload",
Usage: "Comma separated list of JavaScript files to preload into the console",
}
// Network Settings
MaxPeersFlag = cli.IntFlag{
Name: "maxpeers",
Usage: "Maximum number of network peers (network disabled if set to 0)",
Value: 25,
}
MaxPendingPeersFlag = cli.IntFlag{
Name: "maxpendpeers",
Usage: "Maximum number of pending connection attempts (defaults used if set to 0)",
Value: 0,
}
ListenPortFlag = cli.IntFlag{
Name: "port",
Usage: "Network listening port",
Value: 30303,
}
BootnodesFlag = cli.StringFlag{
Name: "bootnodes",
Usage: "Comma separated enode URLs for P2P discovery bootstrap",
Value: "",
}
NodeKeyFileFlag = cli.StringFlag{
Name: "nodekey",
Usage: "P2P node key file",
}
NodeKeyHexFlag = cli.StringFlag{
Name: "nodekeyhex",
Usage: "P2P node key as hex (for testing)",
}
NATFlag = cli.StringFlag{
Name: "nat",
Usage: "NAT port mapping mechanism (any|none|upnp|pmp|extip:<IP>)",
Value: "any",
}
NoDiscoverFlag = cli.BoolFlag{
Name: "nodiscover",
Usage: "Disables the peer discovery mechanism (manual peer addition)",
}
WhisperEnabledFlag = cli.BoolFlag{
Name: "shh",
Usage: "Enable Whisper",
}
// ATM the url is left to the user and deployment to
JSpathFlag = cli.StringFlag{
Name: "jspath",
Usage: "JavaScript root path for `loadScript` and document root for `admin.httpGet`",
Value: ".",
}
SolcPathFlag = cli.StringFlag{
Name: "solc",
Usage: "Solidity compiler command to be used",
Value: "solc",
}
// Gas price oracle settings
GpoMinGasPriceFlag = cli.StringFlag{
Name: "gpomin",
Usage: "Minimum suggested gas price",
Value: new(big.Int).Mul(big.NewInt(20), common.Shannon).String(),
}
GpoMaxGasPriceFlag = cli.StringFlag{
Name: "gpomax",
Usage: "Maximum suggested gas price",
Value: new(big.Int).Mul(big.NewInt(500), common.Shannon).String(),
}
GpoFullBlockRatioFlag = cli.IntFlag{
Name: "gpofull",
Usage: "Full block threshold for gas price calculation (%)",
Value: 80,
}
GpobaseStepDownFlag = cli.IntFlag{
Name: "gpobasedown",
Usage: "Suggested gas price base step down ratio (1/1000)",
Value: 10,
}
GpobaseStepUpFlag = cli.IntFlag{
Name: "gpobaseup",
Usage: "Suggested gas price base step up ratio (1/1000)",
Value: 100,
}
GpobaseCorrectionFactorFlag = cli.IntFlag{
Name: "gpobasecf",
Usage: "Suggested gas price base correction factor (%)",
Value: 110,
}
)
// MakeDataDir retrieves the currently requested data directory, terminating
// if none (or the empty string) is specified. If the node is starting a testnet,
// the a subdirectory of the specified datadir will be used.
func MakeDataDir(ctx *cli.Context) string {
if path := ctx.GlobalString(DataDirFlag.Name); path != "" {
// TODO: choose a different location outside of the regular datadir.
if ctx.GlobalBool(TestNetFlag.Name) {
return filepath.Join(path, "testnet")
}
return path
}
Fatalf("Cannot determine default data directory, please set manually (--datadir)")
return ""
}
// MakeIPCPath creates an IPC path configuration from the set command line flags,
// returning an empty string if IPC was explicitly disabled, or the set path.
func MakeIPCPath(ctx *cli.Context) string {
if ctx.GlobalBool(IPCDisabledFlag.Name) {
return ""
}
return ctx.GlobalString(IPCPathFlag.Name)
}
// MakeNodeKey creates a node key from set command line flags, either loading it
// from a file or as a specified hex value. If neither flags were provided, this
// method returns nil and an emphemeral key is to be generated.
func MakeNodeKey(ctx *cli.Context) *ecdsa.PrivateKey {
var (
hex = ctx.GlobalString(NodeKeyHexFlag.Name)
file = ctx.GlobalString(NodeKeyFileFlag.Name)
key *ecdsa.PrivateKey
err error
)
switch {
case file != "" && hex != "":
Fatalf("Options %q and %q are mutually exclusive", NodeKeyFileFlag.Name, NodeKeyHexFlag.Name)
case file != "":
if key, err = crypto.LoadECDSA(file); err != nil {
Fatalf("Option %q: %v", NodeKeyFileFlag.Name, err)
}
case hex != "":
if key, err = crypto.HexToECDSA(hex); err != nil {
Fatalf("Option %q: %v", NodeKeyHexFlag.Name, err)
}
}
return key
}
// makeNodeUserIdent creates the user identifier from CLI flags.
func makeNodeUserIdent(ctx *cli.Context) string {
var comps []string
if identity := ctx.GlobalString(IdentityFlag.Name); len(identity) > 0 {
comps = append(comps, identity)
}
if ctx.GlobalBool(VMEnableJitFlag.Name) {
comps = append(comps, "JIT")
}
return strings.Join(comps, "/")
}
// MakeBootstrapNodes creates a list of bootstrap nodes from the command line
// flags, reverting to pre-configured ones if none have been specified.
func MakeBootstrapNodes(ctx *cli.Context) []*discover.Node {
// Return pre-configured nodes if none were manually requested
if !ctx.GlobalIsSet(BootnodesFlag.Name) {
if ctx.GlobalBool(TestNetFlag.Name) {
return TestNetBootNodes
}
return FrontierBootNodes
}
// Otherwise parse and use the CLI bootstrap nodes
bootnodes := []*discover.Node{}
for _, url := range strings.Split(ctx.GlobalString(BootnodesFlag.Name), ",") {
node, err := discover.ParseNode(url)
if err != nil {
glog.V(logger.Error).Infof("Bootstrap URL %s: %v\n", url, err)
continue
}
bootnodes = append(bootnodes, node)
}
return bootnodes
}
// MakeListenAddress creates a TCP listening address string from set command
// line flags.
func MakeListenAddress(ctx *cli.Context) string {
return fmt.Sprintf(":%d", ctx.GlobalInt(ListenPortFlag.Name))
}
// MakeNAT creates a port mapper from set command line flags.
func MakeNAT(ctx *cli.Context) nat.Interface {
natif, err := nat.Parse(ctx.GlobalString(NATFlag.Name))
if err != nil {
Fatalf("Option %s: %v", NATFlag.Name, err)
}
return natif
}
// MakeRPCModules splits input separated by a comma and trims excessive white
// space from the substrings.
func MakeRPCModules(input string) []string {
result := strings.Split(input, ",")
for i, r := range result {
result[i] = strings.TrimSpace(r)
}
return result
}
// MakeHTTPRpcHost creates the HTTP RPC listener interface string from the set
// command line flags, returning empty if the HTTP endpoint is disabled.
func MakeHTTPRpcHost(ctx *cli.Context) string {
if !ctx.GlobalBool(RPCEnabledFlag.Name) {
return ""
}
return ctx.GlobalString(RPCListenAddrFlag.Name)
}
// MakeWSRpcHost creates the WebSocket RPC listener interface string from the set
// command line flags, returning empty if the HTTP endpoint is disabled.
func MakeWSRpcHost(ctx *cli.Context) string {
if !ctx.GlobalBool(WSEnabledFlag.Name) {
return ""
}
return ctx.GlobalString(WSListenAddrFlag.Name)
}
// MakeDatabaseHandles raises out the number of allowed file handles per process
// for Geth and returns half of the allowance to assign to the database.
func MakeDatabaseHandles() int {
if err := raiseFdLimit(2048); err != nil {
Fatalf("Failed to raise file descriptor allowance: %v", err)
}
limit, err := getFdLimit()
if err != nil {
Fatalf("Failed to retrieve file descriptor allowance: %v", err)
}
if limit > 2048 { // cap database file descriptors even if more is available
limit = 2048
}
return limit / 2 // Leave half for networking and other stuff
}
// MakeAddress converts an account specified directly as a hex encoded string or
// a key index in the key store to an internal account representation.
func MakeAddress(accman *accounts.Manager, account string) (accounts.Account, error) {
// If the specified account is a valid address, return it
if common.IsHexAddress(account) {
return accounts.Account{Address: common.HexToAddress(account)}, nil
}
// Otherwise try to interpret the account as a keystore index
index, err := strconv.Atoi(account)
if err != nil {
return accounts.Account{}, fmt.Errorf("invalid account address or index %q", account)
}
return accman.AccountByIndex(index)
}
// MakeEtherbase retrieves the etherbase either from the directly specified
// command line flags or from the keystore if CLI indexed.
func MakeEtherbase(accman *accounts.Manager, ctx *cli.Context) common.Address {
accounts := accman.Accounts()
if !ctx.GlobalIsSet(EtherbaseFlag.Name) && len(accounts) == 0 {
glog.V(logger.Error).Infoln("WARNING: No etherbase set and no accounts found as default")
return common.Address{}
}
etherbase := ctx.GlobalString(EtherbaseFlag.Name)
if etherbase == "" {
return common.Address{}
}
// If the specified etherbase is a valid address, return it
account, err := MakeAddress(accman, etherbase)
if err != nil {
Fatalf("Option %q: %v", EtherbaseFlag.Name, err)
}
return account.Address
}
// MakeMinerExtra resolves extradata for the miner from the set command line flags
// or returns a default one composed on the client, runtime and OS metadata.
func MakeMinerExtra(extra []byte, ctx *cli.Context) []byte {
if ctx.GlobalIsSet(ExtraDataFlag.Name) {
return []byte(ctx.GlobalString(ExtraDataFlag.Name))
}
return extra
}
// MakePasswordList reads password lines from the file specified by --password.
func MakePasswordList(ctx *cli.Context) []string {
path := ctx.GlobalString(PasswordFileFlag.Name)
if path == "" {
return nil
}
text, err := ioutil.ReadFile(path)
if err != nil {
Fatalf("Failed to read password file: %v", err)
}
lines := strings.Split(string(text), "\n")
// Sanitise DOS line endings.
for i := range lines {
lines[i] = strings.TrimRight(lines[i], "\r")
}
return lines
}
// MakeNode configures a node with no services from command line flags.
func MakeNode(ctx *cli.Context, name, gitCommit string) *node.Node {
vsn := Version
if gitCommit != "" {
vsn += "-" + gitCommit[:8]
}
config := &node.Config{
DataDir: MakeDataDir(ctx),
KeyStoreDir: ctx.GlobalString(KeyStoreDirFlag.Name),
UseLightweightKDF: ctx.GlobalBool(LightKDFFlag.Name),
PrivateKey: MakeNodeKey(ctx),
Name: name,
Version: vsn,
UserIdent: makeNodeUserIdent(ctx),
NoDiscovery: ctx.GlobalBool(NoDiscoverFlag.Name),
BootstrapNodes: MakeBootstrapNodes(ctx),
ListenAddr: MakeListenAddress(ctx),
NAT: MakeNAT(ctx),
MaxPeers: ctx.GlobalInt(MaxPeersFlag.Name),
MaxPendingPeers: ctx.GlobalInt(MaxPendingPeersFlag.Name),
IPCPath: MakeIPCPath(ctx),
HTTPHost: MakeHTTPRpcHost(ctx),
HTTPPort: ctx.GlobalInt(RPCPortFlag.Name),
HTTPCors: ctx.GlobalString(RPCCORSDomainFlag.Name),
HTTPModules: MakeRPCModules(ctx.GlobalString(RPCApiFlag.Name)),
WSHost: MakeWSRpcHost(ctx),
WSPort: ctx.GlobalInt(WSPortFlag.Name),
WSOrigins: ctx.GlobalString(WSAllowedOriginsFlag.Name),
WSModules: MakeRPCModules(ctx.GlobalString(WSApiFlag.Name)),
}
if ctx.GlobalBool(DevModeFlag.Name) {
if !ctx.GlobalIsSet(DataDirFlag.Name) {
config.DataDir = filepath.Join(os.TempDir(), "/ethereum_dev_mode")
}
// --dev mode does not need p2p networking.
config.MaxPeers = 0
config.ListenAddr = ":0"
}
stack, err := node.New(config)
if err != nil {
Fatalf("Failed to create the protocol stack: %v", err)
}
return stack
}
// RegisterEthService configures eth.Ethereum from command line flags and adds it to the
// given node.
func RegisterEthService(ctx *cli.Context, stack *node.Node, extra []byte) {
// Avoid conflicting network flags
networks, netFlags := 0, []cli.BoolFlag{DevModeFlag, TestNetFlag, OlympicFlag}
for _, flag := range netFlags {
if ctx.GlobalBool(flag.Name) {
networks++
}
}
if networks > 1 {
Fatalf("The %v flags are mutually exclusive", netFlags)
}
// initialise new random number generator
rand := rand.New(rand.NewSource(time.Now().UnixNano()))
// get enabled jit flag
jitEnabled := ctx.GlobalBool(VMEnableJitFlag.Name)
// if the jit is not enabled enable it for 10 pct of the people
if !jitEnabled && rand.Float64() < 0.1 {
jitEnabled = true
glog.V(logger.Info).Infoln("You're one of the lucky few that will try out the JIT VM (random). If you get a consensus failure please be so kind to report this incident with the block hash that failed. You can switch to the regular VM by setting --jitvm=false")
}
ethConf := &eth.Config{
Etherbase: MakeEtherbase(stack.AccountManager(), ctx),
ChainConfig: MakeChainConfig(ctx, stack),
FastSync: ctx.GlobalBool(FastSyncFlag.Name),
DatabaseCache: ctx.GlobalInt(CacheFlag.Name),
DatabaseHandles: MakeDatabaseHandles(),
NetworkId: ctx.GlobalInt(NetworkIdFlag.Name),
MinerThreads: ctx.GlobalInt(MinerThreadsFlag.Name),
ExtraData: MakeMinerExtra(extra, ctx),
NatSpec: ctx.GlobalBool(NatspecEnabledFlag.Name),
DocRoot: ctx.GlobalString(DocRootFlag.Name),
EnableJit: jitEnabled,
ForceJit: ctx.GlobalBool(VMForceJitFlag.Name),
GasPrice: common.String2Big(ctx.GlobalString(GasPriceFlag.Name)),
GpoMinGasPrice: common.String2Big(ctx.GlobalString(GpoMinGasPriceFlag.Name)),
GpoMaxGasPrice: common.String2Big(ctx.GlobalString(GpoMaxGasPriceFlag.Name)),
GpoFullBlockRatio: ctx.GlobalInt(GpoFullBlockRatioFlag.Name),
GpobaseStepDown: ctx.GlobalInt(GpobaseStepDownFlag.Name),
GpobaseStepUp: ctx.GlobalInt(GpobaseStepUpFlag.Name),
GpobaseCorrectionFactor: ctx.GlobalInt(GpobaseCorrectionFactorFlag.Name),
SolcPath: ctx.GlobalString(SolcPathFlag.Name),
AutoDAG: ctx.GlobalBool(AutoDAGFlag.Name) || ctx.GlobalBool(MiningEnabledFlag.Name),
}
// Override any default configs in dev mode or the test net
switch {
case ctx.GlobalBool(OlympicFlag.Name):
if !ctx.GlobalIsSet(NetworkIdFlag.Name) {
ethConf.NetworkId = 1
}
ethConf.Genesis = core.OlympicGenesisBlock()
case ctx.GlobalBool(TestNetFlag.Name):
if !ctx.GlobalIsSet(NetworkIdFlag.Name) {
ethConf.NetworkId = 2
}
ethConf.Genesis = core.TestNetGenesisBlock()
state.StartingNonce = 1048576 // (2**20)
case ctx.GlobalBool(DevModeFlag.Name):
ethConf.Genesis = core.OlympicGenesisBlock()
if !ctx.GlobalIsSet(GasPriceFlag.Name) {
ethConf.GasPrice = new(big.Int)
}
ethConf.PowTest = true
}
// Override any global options pertaining to the Ethereum protocol
if gen := ctx.GlobalInt(TrieCacheGenFlag.Name); gen > 0 {
state.MaxTrieCacheGen = uint16(gen)
}
if err := stack.Register(func(ctx *node.ServiceContext) (node.Service, error) {
return eth.New(ctx, ethConf)
}); err != nil {
Fatalf("Failed to register the Ethereum service: %v", err)
}
}
// RegisterShhService configures whisper and adds it to the given node.
func RegisterShhService(stack *node.Node) {
if err := stack.Register(func(*node.ServiceContext) (node.Service, error) { return whisper.New(), nil }); err != nil {
Fatalf("Failed to register the Whisper service: %v", err)
}
}
// SetupNetwork configures the system for either the main net or some test network.
func SetupNetwork(ctx *cli.Context) {
switch {
case ctx.GlobalBool(OlympicFlag.Name):
params.DurationLimit = big.NewInt(8)
params.GenesisGasLimit = big.NewInt(3141592)
params.MinGasLimit = big.NewInt(125000)
params.MaximumExtraDataSize = big.NewInt(1024)
NetworkIdFlag.Value = 0
core.BlockReward = big.NewInt(1.5e+18)
core.ExpDiffPeriod = big.NewInt(math.MaxInt64)
}
params.TargetGasLimit = common.String2Big(ctx.GlobalString(TargetGasLimitFlag.Name))
}
// MakeChainConfig reads the chain configuration from the database in ctx.Datadir.
func MakeChainConfig(ctx *cli.Context, stack *node.Node) *core.ChainConfig {
db := MakeChainDatabase(ctx, stack)
defer db.Close()
return MakeChainConfigFromDb(ctx, db)
}
// MakeChainConfigFromDb reads the chain configuration from the given database.
func MakeChainConfigFromDb(ctx *cli.Context, db ethdb.Database) *core.ChainConfig {
// If the chain is already initialized, use any existing chain configs
config := new(core.ChainConfig)
genesis := core.GetBlock(db, core.GetCanonicalHash(db, 0), 0)
if genesis != nil {
storedConfig, err := core.GetChainConfig(db, genesis.Hash())
switch err {
case nil:
config = storedConfig
case core.ChainConfigNotFoundErr:
// No configs found, use empty, will populate below
default:
Fatalf("Could not make chain configuration: %v", err)
}
}
// Set any missing fields due to them being unset or system upgrade
if config.HomesteadBlock == nil {
if ctx.GlobalBool(TestNetFlag.Name) {
config.HomesteadBlock = params.TestNetHomesteadBlock
} else {
config.HomesteadBlock = params.MainNetHomesteadBlock
}
}
if config.DAOForkBlock == nil {
if ctx.GlobalBool(TestNetFlag.Name) {
config.DAOForkBlock = params.TestNetDAOForkBlock
} else {
config.DAOForkBlock = params.MainNetDAOForkBlock
}
config.DAOForkSupport = true
}
if config.HomesteadGasRepriceBlock == nil {
if ctx.GlobalBool(TestNetFlag.Name) {
config.HomesteadGasRepriceBlock = params.TestNetHomesteadGasRepriceBlock
} else {
config.HomesteadGasRepriceBlock = params.MainNetHomesteadGasRepriceBlock
}
}
// Force override any existing configs if explicitly requested
switch {
case ctx.GlobalBool(SupportDAOFork.Name):
config.DAOForkSupport = true
case ctx.GlobalBool(OpposeDAOFork.Name):
config.DAOForkSupport = false
}
return config
}
// MakeChainDatabase open an LevelDB using the flags passed to the client and will hard crash if it fails.
func MakeChainDatabase(ctx *cli.Context, stack *node.Node) ethdb.Database {
var (
cache = ctx.GlobalInt(CacheFlag.Name)
handles = MakeDatabaseHandles()
)
chainDb, err := stack.OpenDatabase("chaindata", cache, handles)
if err != nil {
Fatalf("Could not open database: %v", err)
}
return chainDb
}
// MakeChain creates a chain manager from set command line flags.
func MakeChain(ctx *cli.Context, stack *node.Node) (chain *core.BlockChain, chainDb ethdb.Database) {
var err error
chainDb = MakeChainDatabase(ctx, stack)
if ctx.GlobalBool(OlympicFlag.Name) {
_, err := core.WriteTestNetGenesisBlock(chainDb)
if err != nil {
glog.Fatalln(err)
}
}
chainConfig := MakeChainConfigFromDb(ctx, chainDb)
pow := pow.PoW(core.FakePow{})
if !ctx.GlobalBool(FakePoWFlag.Name) {
pow = ethash.New()
}
chain, err = core.NewBlockChain(chainDb, chainConfig, pow, new(event.TypeMux))
if err != nil {
Fatalf("Could not start chainmanager: %v", err)
}
return chain, chainDb
}
// MakeConsolePreloads retrieves the absolute paths for the console JavaScript
// scripts to preload before starting.
func MakeConsolePreloads(ctx *cli.Context) []string {
// Skip preloading if there's nothing to preload
if ctx.GlobalString(PreloadJSFlag.Name) == "" {
return nil
}
// Otherwise resolve absolute paths and return them
preloads := []string{}
assets := ctx.GlobalString(JSpathFlag.Name)
for _, file := range strings.Split(ctx.GlobalString(PreloadJSFlag.Name), ",") {
preloads = append(preloads, common.AbsolutePath(assets, strings.TrimSpace(file)))
}
return preloads
}