The great merge

ethutil/config.go

@@ -0,0 +1,106 @@
+package ethutil
+
+import (
+	"log"
+	"os"
+	"os/user"
+	"path"
+)
+
+type LogType byte
+
+const (
+	LogTypeStdIn = 1
+	LogTypeFile  = 2
+)
+
+// Config struct isn't exposed
+type config struct {
+	Db Database
+
+	Log      Logger
+	ExecPath string
+	Debug    bool
+	Ver      string
+	Pubkey   []byte
+	Seed     bool
+}
+
+var Config *config
+
+// Read config doesn't read anything yet.
+func ReadConfig(base string) *config {
+	if Config == nil {
+		usr, _ := user.Current()
+		path := path.Join(usr.HomeDir, base)
+
+		//Check if the logging directory already exists, create it if not
+		_, err := os.Stat(path)
+		if err != nil {
+			if os.IsNotExist(err) {
+				log.Printf("Debug logging directory %s doesn't exist, creating it", path)
+				os.Mkdir(path, 0777)
+			}
+		}
+
+		Config = &config{ExecPath: path, Debug: true, Ver: "0.2.1"}
+		Config.Log = NewLogger(LogFile|LogStd, 0)
+	}
+
+	return Config
+}
+
+type LoggerType byte
+
+const (
+	LogFile = 0x1
+	LogStd  = 0x2
+)
+
+type Logger struct {
+	logSys   []*log.Logger
+	logLevel int
+}
+
+func NewLogger(flag LoggerType, level int) Logger {
+	var loggers []*log.Logger
+
+	flags := log.LstdFlags | log.Lshortfile
+
+	if flag&LogFile > 0 {
+		file, err := os.OpenFile(path.Join(Config.ExecPath, "debug.log"), os.O_RDWR|os.O_CREATE|os.O_APPEND, os.ModePerm)
+		if err != nil {
+			log.Panic("unable to create file logger", err)
+		}
+
+		log := log.New(file, "[ETH]", flags)
+
+		loggers = append(loggers, log)
+	}
+	if flag&LogStd > 0 {
+		log := log.New(os.Stdout, "[ETH]", flags)
+		loggers = append(loggers, log)
+	}
+
+	return Logger{logSys: loggers, logLevel: level}
+}
+
+func (log Logger) Debugln(v ...interface{}) {
+	if log.logLevel != 0 {
+		return
+	}
+
+	for _, logger := range log.logSys {
+		logger.Println(v...)
+	}
+}
+
+func (log Logger) Debugf(format string, v ...interface{}) {
+	if log.logLevel != 0 {
+		return
+	}
+
+	for _, logger := range log.logSys {
+		logger.Printf(format, v...)
+	}
+}