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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"
    "io"
    "os"

    "github.com/mattn/go-colorable"
    "github.com/mattn/go-isatty"
    "github.com/codegangsta/cli"
    "github.com/ethereum/go-ethereum/cmd/utils"
    "github.com/ethereum/go-ethereum/logger"
)

const (
    ClientIdentifier = "Geth console"
    Version          = "0.9.27"
)

var (
    gitCommit       string // set via linker flag
    nodeNameVersion string
    app           = utils.NewApp(Version, "the ether console")
)

func init() {
    if gitCommit == "" {
        nodeNameVersion = Version
    } else {
        nodeNameVersion = Version + "-" + gitCommit[:8]
    }

    app.Action = run
    app.Flags = []cli.Flag{
        utils.IPCDisabledFlag,
        utils.IPCPathFlag,
        utils.VerbosityFlag,
        utils.JSpathFlag,
    }

    app.Before = func(ctx *cli.Context) error {
        utils.SetupLogger(ctx)
        return nil
    }
}

func main() {
    // Wrap the standard output with a colorified stream (windows)
    if isatty.IsTerminal(os.Stdout.Fd()) {
        if pr, pw, err := os.Pipe(); err == nil {
            go io.Copy(colorable.NewColorableStdout(), pr)
            os.Stdout = pw
        }
    }

    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) {
    jspath := ctx.GlobalString(utils.JSpathFlag.Name)
    ipcpath := ctx.GlobalString(utils.IPCPathFlag.Name)

    repl := newJSRE(jspath, ipcpath)
    repl.welcome()
    repl.interactive()
}