Merge pull request #3 from ethereum/develop

Develop

README.md

@@ -7,7 +7,7 @@ Status](http://cpt-obvious.ethercasts.com:8010/buildstatusimage?builder=go-ether
 
 Ethereum Go Client © 2014 Jeffrey Wilcke.
 
-Current state: Proof of Concept 0.6.4.
+Current state: Proof of Concept 0.6.5.
 
 For the development package please see the [eth-go package](https://github.com/ethereum/eth-go).
 

ethereal/errors.go

@@ -0,0 +1,36 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"gopkg.in/qml.v1"
+)
+
+func ErrorWindow(err error) {
+	engine := qml.NewEngine()
+	component, e := engine.LoadString("local", qmlErr)
+	if e != nil {
+		fmt.Println("err:", err)
+		os.Exit(1)
+	}
+
+	win := component.CreateWindow(nil)
+	win.Root().ObjectByName("label").Set("text", err.Error())
+	win.Show()
+	win.Wait()
+}
+
+const qmlErr = `
+import QtQuick 2.0; import QtQuick.Controls 1.0;
+ApplicationWindow {
+	width: 600; height: 150;
+	flags: Qt.CustomizeWindowHint | Qt.WindowTitleHint | Qt.WindowCloseButtonHint
+	title: "Error"
+	Text {
+		x: parent.width / 2 - this.width / 2;
+		y: parent.height / 2 - this.height / 2;
+		objectName: "label";
+	}
+}
+`

ethereal/gui.go

@@ -56,7 +56,8 @@ type Gui struct {
 
 	plugins map[string]plugin
 
-	miner *ethminer.Miner
+	miner  *ethminer.Miner
+	stdLog ethlog.LogSystem
 }
 
 // Create GUI, but doesn't start it
@@ -559,6 +560,7 @@ func (gui *Gui) ToggleTurboMining() {
 // functions that allow Gui to implement interface ethlog.LogSystem
 func (gui *Gui) SetLogLevel(level ethlog.LogLevel) {
 	gui.logLevel = level
+	gui.stdLog.SetLogLevel(level)
 	gui.config.Save("loglevel", level)
 }
 

ethereal/main.go

@@ -12,7 +12,7 @@ import (
 
 const (
 	ClientIdentifier = "Ethereal"
-	Version          = "0.6.4"
+	Version          = "0.6.5"
 )
 
 var ethereum *eth.Ethereum
@@ -25,9 +25,15 @@ func run() error {
 
 	utils.InitDataDir(Datadir)
 
-	utils.InitLogging(Datadir, LogFile, LogLevel, DebugFile)
+	stdLog := utils.InitLogging(Datadir, LogFile, LogLevel, DebugFile)
 
 	db := utils.NewDatabase()
+	err := utils.DBSanityCheck(db)
+	if err != nil {
+		ErrorWindow(err)
+
+		os.Exit(1)
+	}
 
 	keyManager := utils.NewKeyManager(KeyStore, Datadir, db)
 
@@ -47,6 +53,7 @@ func run() error {
 	}
 
 	gui := NewWindow(ethereum, config, clientIdentity, KeyRing, LogLevel)
+	gui.stdLog = stdLog
 
 	utils.RegisterInterrupt(func(os.Signal) {
 		gui.Stop()

ethereum/main.go

@@ -13,7 +13,7 @@ import (
 
 const (
 	ClientIdentifier = "Ethereum(G)"
-	Version          = "0.6.4"
+	Version          = "0.6.5"
 )
 
 var logger = ethlog.NewLogger("CLI")
@@ -40,6 +40,12 @@ func main() {
 	utils.InitLogging(Datadir, LogFile, LogLevel, DebugFile)
 
 	db := utils.NewDatabase()
+	err := utils.DBSanityCheck(db)
+	if err != nil {
+		logger.Errorln(err)
+
+		os.Exit(1)
+	}
 
 	keyManager := utils.NewKeyManager(KeyStore, Datadir, db)
 

utils/cmd.go

@@ -80,6 +80,16 @@ func confirm(message string) bool {
 	return r == "y"
 }
 
+func DBSanityCheck(db ethutil.Database) error {
+	d, _ := db.Get([]byte("ProtocolVersion"))
+	protov := ethutil.NewValue(d).Uint()
+	if protov != eth.ProtocolVersion && protov != 0 {
+		return fmt.Errorf("Database version mismatch. Protocol(%d / %d). `rm -rf %s`", protov, eth.ProtocolVersion, ethutil.Config.ExecPath+"/database")
+	}
+
+	return nil
+}
+
 func InitDataDir(Datadir string) {
 	_, err := os.Stat(Datadir)
 	if err != nil {
@@ -90,18 +100,22 @@ func InitDataDir(Datadir string) {
 	}
 }
 
-func InitLogging(Datadir string, LogFile string, LogLevel int, DebugFile string) {
+func InitLogging(Datadir string, LogFile string, LogLevel int, DebugFile string) ethlog.LogSystem {
 	var writer io.Writer
 	if LogFile == "" {
 		writer = os.Stdout
 	} else {
 		writer = openLogFile(Datadir, LogFile)
 	}
-	ethlog.AddLogSystem(ethlog.NewStdLogSystem(writer, log.LstdFlags, ethlog.LogLevel(LogLevel)))
+
+	sys := ethlog.NewStdLogSystem(writer, log.LstdFlags, ethlog.LogLevel(LogLevel))
+	ethlog.AddLogSystem(sys)
 	if DebugFile != "" {
 		writer = openLogFile(Datadir, DebugFile)
 		ethlog.AddLogSystem(ethlog.NewStdLogSystem(writer, log.LstdFlags, ethlog.DebugLevel))
 	}
+
+	return sys
 }
 
 func InitConfig(ConfigFile string, Datadir string, EnvPrefix string) *ethutil.ConfigManager {
@@ -112,7 +126,6 @@ func InitConfig(ConfigFile string, Datadir string, EnvPrefix string) *ethutil.Co
 func exit(err error) {
 	status := 0
 	if err != nil {
-		fmt.Println(err)
 		logger.Errorln("Fatal: ", err)
 		status = 1
 	}