165 lines
2.9 KiB
Go
165 lines
2.9 KiB
Go
package ethutil
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import (
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"fmt"
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"log"
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"os"
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"os/user"
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"path"
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"runtime"
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)
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// Config struct
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type config struct {
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Db Database
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Log *Logger
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ExecPath string
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Debug bool
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Ver string
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ClientString string
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Pubkey []byte
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Identifier string
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}
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var Config *config
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// Read config
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//
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// Initialize the global Config variable with default settings
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func ReadConfig(base string, logTypes LoggerType, id string) *config {
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if Config == nil {
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usr, _ := user.Current()
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path := path.Join(usr.HomeDir, base)
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if len(base) > 0 {
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//Check if the logging directory already exists, create it if not
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_, err := os.Stat(path)
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if err != nil {
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if os.IsNotExist(err) {
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log.Printf("Debug logging directory %s doesn't exist, creating it\n", path)
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os.Mkdir(path, 0777)
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}
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}
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}
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Config = &config{ExecPath: path, Debug: true, Ver: "0.5.0 RC9"}
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Config.Identifier = id
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Config.Log = NewLogger(logTypes, LogLevelDebug)
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Config.SetClientString("/Ethereum(G)")
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}
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return Config
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}
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// Set client string
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//
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func (c *config) SetClientString(str string) {
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id := runtime.GOOS
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if len(c.Identifier) > 0 {
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id = c.Identifier
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}
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Config.ClientString = fmt.Sprintf("%s nv%s/%s", str, c.Ver, id)
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}
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type LoggerType byte
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const (
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LogFile = 0x1
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LogStd = 0x2
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)
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type LogSystem interface {
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Println(v ...interface{})
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Printf(format string, v ...interface{})
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}
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type Logger struct {
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logSys []LogSystem
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logLevel int
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}
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func NewLogger(flag LoggerType, level int) *Logger {
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var loggers []LogSystem
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flags := log.LstdFlags
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if flag&LogFile > 0 {
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file, err := os.OpenFile(path.Join(Config.ExecPath, "debug.log"), os.O_RDWR|os.O_CREATE|os.O_APPEND, os.ModePerm)
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if err != nil {
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log.Panic("unable to create file logger", err)
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}
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log := log.New(file, "", flags)
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loggers = append(loggers, log)
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}
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if flag&LogStd > 0 {
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log := log.New(os.Stdout, "", flags)
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loggers = append(loggers, log)
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}
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return &Logger{logSys: loggers, logLevel: level}
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}
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func (log *Logger) AddLogSystem(logger LogSystem) {
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log.logSys = append(log.logSys, logger)
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}
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const (
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LogLevelDebug = iota
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LogLevelInfo
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)
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func (log *Logger) Debugln(v ...interface{}) {
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if log.logLevel != LogLevelDebug {
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return
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}
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for _, logger := range log.logSys {
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logger.Println(v...)
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}
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}
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func (log *Logger) Debugf(format string, v ...interface{}) {
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if log.logLevel != LogLevelDebug {
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return
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}
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for _, logger := range log.logSys {
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logger.Printf(format, v...)
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}
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}
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func (log *Logger) Infoln(v ...interface{}) {
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if log.logLevel > LogLevelInfo {
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return
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}
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for _, logger := range log.logSys {
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logger.Println(v...)
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}
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}
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func (log *Logger) Infof(format string, v ...interface{}) {
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if log.logLevel > LogLevelInfo {
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return
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}
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for _, logger := range log.logSys {
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logger.Printf(format, v...)
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}
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}
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func (log *Logger) Fatal(v ...interface{}) {
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if log.logLevel > LogLevelInfo {
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return
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}
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for _, logger := range log.logSys {
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logger.Println(v...)
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}
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os.Exit(1)
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}
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