Moved utils to cmd
This commit is contained in:
obscuren
327
cmd/utils/cmd.go
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327
cmd/utils/cmd.go
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package utils
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import (
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"fmt"
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"io"
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"log"
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"os"
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"os/signal"
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"path"
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"path/filepath"
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"regexp"
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"runtime"
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"time"
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"bitbucket.org/kardianos/osext"
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"github.com/ethereum/go-ethereum"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/ethminer"
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"github.com/ethereum/go-ethereum/ethpipe"
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"github.com/ethereum/go-ethereum/ethutil"
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"github.com/ethereum/go-ethereum/ethwire"
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"github.com/ethereum/go-ethereum/logger"
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"github.com/ethereum/go-ethereum/rpc"
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)
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var clilogger = logger.NewLogger("CLI")
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var interruptCallbacks = []func(os.Signal){}
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// Register interrupt handlers callbacks
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func RegisterInterrupt(cb func(os.Signal)) {
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interruptCallbacks = append(interruptCallbacks, cb)
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}
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// go routine that call interrupt handlers in order of registering
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func HandleInterrupt() {
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c := make(chan os.Signal, 1)
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go func() {
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signal.Notify(c, os.Interrupt)
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for sig := range c {
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clilogger.Errorf("Shutting down (%v) ... \n", sig)
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RunInterruptCallbacks(sig)
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}
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}()
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}
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func RunInterruptCallbacks(sig os.Signal) {
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for _, cb := range interruptCallbacks {
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cb(sig)
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}
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}
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func AbsolutePath(Datadir string, filename string) string {
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if path.IsAbs(filename) {
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return filename
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}
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return path.Join(Datadir, filename)
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}
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func openLogFile(Datadir string, filename string) *os.File {
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path := AbsolutePath(Datadir, filename)
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file, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
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if err != nil {
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panic(fmt.Sprintf("error opening log file '%s': %v", filename, err))
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}
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return file
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}
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func confirm(message string) bool {
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fmt.Println(message, "Are you sure? (y/n)")
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var r string
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fmt.Scanln(&r)
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for ; ; fmt.Scanln(&r) {
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if r == "n" || r == "y" {
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break
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} else {
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fmt.Printf("Yes or no?", r)
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}
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}
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return r == "y"
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}
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func DBSanityCheck(db ethutil.Database) error {
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d, _ := db.Get([]byte("ProtocolVersion"))
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protov := ethutil.NewValue(d).Uint()
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if protov != eth.ProtocolVersion && protov != 0 {
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return fmt.Errorf("Database version mismatch. Protocol(%d / %d). `rm -rf %s`", protov, eth.ProtocolVersion, ethutil.Config.ExecPath+"/database")
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}
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return nil
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}
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func InitDataDir(Datadir string) {
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_, err := os.Stat(Datadir)
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if err != nil {
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if os.IsNotExist(err) {
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fmt.Printf("Data directory '%s' doesn't exist, creating it\n", Datadir)
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os.Mkdir(Datadir, 0777)
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}
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}
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}
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func InitLogging(Datadir string, LogFile string, LogLevel int, DebugFile string) logger.LogSystem {
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var writer io.Writer
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if LogFile == "" {
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writer = os.Stdout
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} else {
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writer = openLogFile(Datadir, LogFile)
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}
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sys := logger.NewStdLogSystem(writer, log.LstdFlags, logger.LogLevel(LogLevel))
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logger.AddLogSystem(sys)
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if DebugFile != "" {
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writer = openLogFile(Datadir, DebugFile)
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logger.AddLogSystem(logger.NewStdLogSystem(writer, log.LstdFlags, logger.DebugLevel))
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}
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return sys
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}
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func InitConfig(vmType int, ConfigFile string, Datadir string, EnvPrefix string) *ethutil.ConfigManager {
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InitDataDir(Datadir)
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cfg := ethutil.ReadConfig(ConfigFile, Datadir, EnvPrefix)
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cfg.VmType = vmType
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return cfg
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}
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func exit(err error) {
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status := 0
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if err != nil {
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clilogger.Errorln("Fatal: ", err)
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status = 1
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}
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logger.Flush()
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os.Exit(status)
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}
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func NewDatabase() ethutil.Database {
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db, err := ethdb.NewLDBDatabase("database")
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if err != nil {
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exit(err)
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}
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return db
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}
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func NewClientIdentity(clientIdentifier, version, customIdentifier string) *ethwire.SimpleClientIdentity {
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clilogger.Infoln("identity created")
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return ethwire.NewSimpleClientIdentity(clientIdentifier, version, customIdentifier)
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}
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func NewEthereum(db ethutil.Database, clientIdentity ethwire.ClientIdentity, keyManager *crypto.KeyManager, usePnp bool, OutboundPort string, MaxPeer int) *eth.Ethereum {
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ethereum, err := eth.New(db, clientIdentity, keyManager, eth.CapDefault, usePnp)
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if err != nil {
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clilogger.Fatalln("eth start err:", err)
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}
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ethereum.Port = OutboundPort
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ethereum.MaxPeers = MaxPeer
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return ethereum
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}
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func StartEthereum(ethereum *eth.Ethereum, UseSeed bool) {
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clilogger.Infof("Starting %s", ethereum.ClientIdentity())
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ethereum.Start(UseSeed)
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RegisterInterrupt(func(sig os.Signal) {
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ethereum.Stop()
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logger.Flush()
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})
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}
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func ShowGenesis(ethereum *eth.Ethereum) {
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clilogger.Infoln(ethereum.ChainManager().Genesis())
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exit(nil)
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}
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func NewKeyManager(KeyStore string, Datadir string, db ethutil.Database) *crypto.KeyManager {
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var keyManager *crypto.KeyManager
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switch {
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case KeyStore == "db":
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keyManager = crypto.NewDBKeyManager(db)
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case KeyStore == "file":
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keyManager = crypto.NewFileKeyManager(Datadir)
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default:
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exit(fmt.Errorf("unknown keystore type: %s", KeyStore))
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}
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return keyManager
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}
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func DefaultAssetPath() string {
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var assetPath string
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// If the current working directory is the go-ethereum dir
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// assume a debug build and use the source directory as
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// asset directory.
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pwd, _ := os.Getwd()
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if pwd == path.Join(os.Getenv("GOPATH"), "src", "github.com", "ethereum", "go-ethereum", "cmd", "mist") {
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assetPath = path.Join(pwd, "assets")
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} else {
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switch runtime.GOOS {
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case "darwin":
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// Get Binary Directory
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exedir, _ := osext.ExecutableFolder()
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assetPath = filepath.Join(exedir, "../Resources")
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case "linux":
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assetPath = "/usr/share/mist"
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case "windows":
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assetPath = "./assets"
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default:
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assetPath = "."
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}
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}
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return assetPath
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}
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func KeyTasks(keyManager *crypto.KeyManager, KeyRing string, GenAddr bool, SecretFile string, ExportDir string, NonInteractive bool) {
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var err error
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switch {
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case GenAddr:
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if NonInteractive || confirm("This action overwrites your old private key.") {
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err = keyManager.Init(KeyRing, 0, true)
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}
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exit(err)
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case len(SecretFile) > 0:
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SecretFile = ethutil.ExpandHomePath(SecretFile)
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if NonInteractive || confirm("This action overwrites your old private key.") {
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err = keyManager.InitFromSecretsFile(KeyRing, 0, SecretFile)
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}
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exit(err)
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case len(ExportDir) > 0:
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err = keyManager.Init(KeyRing, 0, false)
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if err == nil {
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err = keyManager.Export(ExportDir)
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}
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exit(err)
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default:
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// Creates a keypair if none exists
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err = keyManager.Init(KeyRing, 0, false)
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if err != nil {
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exit(err)
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}
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}
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}
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func StartRpc(ethereum *eth.Ethereum, RpcPort int) {
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var err error
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ethereum.RpcServer, err = rpc.NewJsonRpcServer(ethpipe.NewJSPipe(ethereum), RpcPort)
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if err != nil {
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clilogger.Errorf("Could not start RPC interface (port %v): %v", RpcPort, err)
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} else {
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go ethereum.RpcServer.Start()
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}
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}
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var miner *ethminer.Miner
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func GetMiner() *ethminer.Miner {
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return miner
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}
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func StartMining(ethereum *eth.Ethereum) bool {
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if !ethereum.Mining {
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ethereum.Mining = true
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addr := ethereum.KeyManager().Address()
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go func() {
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clilogger.Infoln("Start mining")
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if miner == nil {
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miner = ethminer.NewDefaultMiner(addr, ethereum)
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}
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// Give it some time to connect with peers
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time.Sleep(3 * time.Second)
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for !ethereum.IsUpToDate() {
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time.Sleep(5 * time.Second)
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}
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miner.Start()
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}()
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RegisterInterrupt(func(os.Signal) {
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StopMining(ethereum)
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})
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return true
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}
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return false
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}
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func FormatTransactionData(data string) []byte {
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d := ethutil.StringToByteFunc(data, func(s string) (ret []byte) {
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slice := regexp.MustCompile("\\n|\\s").Split(s, 1000000000)
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for _, dataItem := range slice {
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d := ethutil.FormatData(dataItem)
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ret = append(ret, d...)
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}
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return
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})
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return d
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}
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func StopMining(ethereum *eth.Ethereum) bool {
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if ethereum.Mining && miner != nil {
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miner.Stop()
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clilogger.Infoln("Stopped mining")
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ethereum.Mining = false
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return true
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}
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return false
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}
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// Replay block
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func BlockDo(ethereum *eth.Ethereum, hash []byte) error {
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block := ethereum.ChainManager().GetBlock(hash)
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if block == nil {
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return fmt.Errorf("unknown block %x", hash)
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}
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parent := ethereum.ChainManager().GetBlock(block.PrevHash)
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_, err := ethereum.StateManager().ApplyDiff(parent.State(), parent, block)
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if err != nil {
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return err
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}
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return nil
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}
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