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path: root/cmd/mist/main.go
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/*
    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/codegangsta/cli"
    "github.com/ethereum/go-ethereum/cmd/utils"
    "github.com/ethereum/go-ethereum/common"
    "github.com/ethereum/go-ethereum/eth"
    "github.com/ethereum/go-ethereum/logger"
    "github.com/ethereum/go-ethereum/ui/qt/webengine"
    "github.com/obscuren/qml"
)

const (
    ClientIdentifier = "Mist"
    Version          = "0.9.0"
)

var (
    gitCommit       string // set via linker flag
    nodeNameVersion string

    app           = utils.NewApp(Version, "the ether browser")
    assetPathFlag = cli.StringFlag{
        Name:  "asset_path",
        Usage: "absolute path to GUI assets directory",
        Value: common.DefaultAssetPath(),
    }
    rpcCorsFlag = utils.RPCCORSDomainFlag
)

func init() {
    // Mist-specific default
    if len(rpcCorsFlag.Value) == 0 {
        rpcCorsFlag.Value = "http://localhost"
    }
    if gitCommit == "" {
        nodeNameVersion = Version
    } else {
        nodeNameVersion = Version + "-" + gitCommit[:8]
    }

    app.Action = run
    app.Flags = []cli.Flag{
        assetPathFlag,
        rpcCorsFlag,

        utils.BootNodesFlag,
        utils.DataDirFlag,
        utils.ListenPortFlag,
        utils.LogFileFlag,
        utils.LogLevelFlag,
        utils.MaxPeersFlag,
        utils.MinerThreadsFlag,
        utils.NATFlag,
        utils.NodeKeyFileFlag,
        utils.RPCListenAddrFlag,
        utils.RPCPortFlag,
        utils.JSpathFlag,
        utils.ProtocolVersionFlag,
        utils.BlockchainVersionFlag,
        utils.NetworkIdFlag,
    }
}

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

    // This is a bit of a cheat, but ey!
    os.Setenv("QTWEBKIT_INSPECTOR_SERVER", "127.0.0.1:99999")

    var interrupted = false
    utils.RegisterInterrupt(func(os.Signal) {
        interrupted = true
    })
    utils.HandleInterrupt()

    if err := app.Run(os.Args); err != nil {
        fmt.Fprintln(os.Stderr, "Error: ", err)
    }

    // we need to run the interrupt callbacks in case gui is closed
    // this skips if we got here by actual interrupt stopping the GUI
    if !interrupted {
        utils.RunInterruptCallbacks(os.Interrupt)
    }
    logger.Flush()
}

func run(ctx *cli.Context) {
    tstart := time.Now()

    // TODO: show qml popup instead of exiting if initialization fails.
    cfg := utils.MakeEthConfig(ClientIdentifier, nodeNameVersion, ctx)
    cfg.Shh = true
    ethereum, err := eth.New(cfg)
    if err != nil {
        utils.Fatalf("%v", err)
    }
    utils.StartRPC(ethereum, ctx)
    go utils.StartEthereum(ethereum)
    fmt.Println("initializing eth stack took", time.Since(tstart))

    // Open the window
    qml.Run(func() error {
        webengine.Initialize()
        gui := NewWindow(ethereum)
        utils.RegisterInterrupt(func(os.Signal) { gui.Stop() })
        // gui blocks the main thread
        gui.Start(ctx.GlobalString(assetPathFlag.Name), ctx.GlobalString(utils.JSpathFlag.Name))
        return nil
    })
}