path: root/cmd/ethereum/main.go

/*
    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/>.
*/
/**
 * @authors
 *  Jeffrey Wilcke <i@jev.io>
 */
package main

import (
    "fmt"
    "os"
    "runtime"
    "time"

    "github.com/ethereum/go-ethereum/cmd/utils"
    "github.com/ethereum/go-ethereum/core/types"
    "github.com/ethereum/go-ethereum/eth"
    "github.com/ethereum/go-ethereum/ethutil"
    "github.com/ethereum/go-ethereum/logger"
)

const (
    ClientIdentifier = "Ethereum(G)"
    Version          = "0.8.1"
)

var clilogger = logger.NewLogger("CLI")

func main() {
    runtime.GOMAXPROCS(runtime.NumCPU())

    defer func() {
        logger.Flush()
    }()

    utils.HandleInterrupt()

    // precedence: code-internal flag default < config file < environment variables < command line
    Init() // parsing command line

    if PrintVersion {
        printVersion()
        return
    }

    utils.InitConfig(VmType, ConfigFile, Datadir, "ETH")

    ethereum, err := eth.New(&eth.Config{
        Name:       ClientIdentifier,
        Version:    Version,
        KeyStore:   KeyStore,
        DataDir:    Datadir,
        LogFile:    LogFile,
        LogLevel:   LogLevel,
        Identifier: Identifier,
        MaxPeers:   MaxPeer,
        Port:       OutboundPort,
        NATType:    PMPGateway,
        PMPGateway: PMPGateway,
        KeyRing:    KeyRing,
        Shh:        SHH,
        Dial:       Dial,
    })

    if err != nil {
        clilogger.Fatalln(err)
    }

    utils.KeyTasks(ethereum.KeyManager(), KeyRing, GenAddr, SecretFile, ExportDir, NonInteractive)

    if Dump {
        var block *types.Block

        if len(DumpHash) == 0 && DumpNumber == -1 {
            block = ethereum.ChainManager().CurrentBlock()
        } else if len(DumpHash) > 0 {
            block = ethereum.ChainManager().GetBlock(ethutil.Hex2Bytes(DumpHash))
        } else {
            block = ethereum.ChainManager().GetBlockByNumber(uint64(DumpNumber))
        }

        if block == nil {
            fmt.Fprintln(os.Stderr, "block not found")

            // We want to output valid JSON
            fmt.Println("{}")

            os.Exit(1)
        }

        // Leave the Println. This needs clean output for piping
        fmt.Printf("%s\n", block.State().Dump())

        fmt.Println(block)

        return
    }

    if StartMining {
        utils.StartMining(ethereum)
    }

    if len(ImportChain) > 0 {
        start := time.Now()
        err := utils.ImportChain(ethereum, ImportChain)
        if err != nil {
            clilogger.Infoln(err)
        }
        clilogger.Infoln("import done in", time.Since(start))
        return
    }

    if StartRpc {
        utils.StartRpc(ethereum, RpcPort)
    }

    if StartWebSockets {
        utils.StartWebSockets(ethereum)
    }

    utils.StartEthereum(ethereum, UseSeed)

    if StartJsConsole {
        InitJsConsole(ethereum)
    } else if len(InputFile) > 0 {
        ExecJsFile(ethereum, InputFile)
    }
    // this blocks the thread
    ethereum.WaitForShutdown()
}

func printVersion() {
    fmt.Printf(`%v %v
PV=%d
GOOS=%s
GO=%s
GOPATH=%s
GOROOT=%s
`, ClientIdentifier, Version, eth.ProtocolVersion, runtime.GOOS, runtime.Version(), os.Getenv("GOPATH"), runtime.GOROOT())
}