path: root/cmd/ethereum/main.go

// Copyright (c) 2013-2014, Jeffrey Wilcke. All rights reserved.
//
// This library 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 2.1 of the License, or (at your option) any later version.
//
// This library 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 this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
// MA 02110-1301  USA

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          = "0.8.0"
)

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

    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,
    })
    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
    }

    // better reworked as cases
    if StartJsConsole {
        InitJsConsole(ethereum)
    } else if len(InputFile) > 0 {
        ExecJsFile(ethereum, InputFile)
    }

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

    if StartWebSockets {
        utils.StartWebSockets(ethereum)
    }

    utils.StartEthereum(ethereum, UseSeed)

    // this blocks the thread
    ethereum.WaitForShutdown()
}