rewrite logger

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

logger/level.go

@@ -2,7 +2,6 @@ package logger
 
 import (
 	"fmt"
-	"os"
 )
 
 type Level int8
@@ -19,7 +18,7 @@ const (
 	WarnLevel
 	// ErrorLevel level. Logs. Used for errors that should definitely be noted.
 	ErrorLevel
-	// FatalLevel level. Logs and then calls `logger.Exit(1)`. highest level of severity.
+	// FatalLevel level. Logs and then calls `os.Exit(1)`. highest level of severity.
 	FatalLevel
 )
 
@@ -63,60 +62,5 @@ func GetLevel(levelStr string) (Level, error) {
 	case FatalLevel.String():
 		return FatalLevel, nil
 	}
-	return InfoLevel, fmt.Errorf("Unknown Level String: '%s', defaulting to InfoLevel", levelStr)
-}
-
-func Info(args ...interface{}) {
-	DefaultLogger.Log(InfoLevel, args...)
-}
-
-func Infof(template string, args ...interface{}) {
-	DefaultLogger.Logf(InfoLevel, template, args...)
-}
-
-func Trace(args ...interface{}) {
-	DefaultLogger.Log(TraceLevel, args...)
-}
-
-func Tracef(template string, args ...interface{}) {
-	DefaultLogger.Logf(TraceLevel, template, args...)
-}
-
-func Debug(args ...interface{}) {
-	DefaultLogger.Log(DebugLevel, args...)
-}
-
-func Debugf(template string, args ...interface{}) {
-	DefaultLogger.Logf(DebugLevel, template, args...)
-}
-
-func Warn(args ...interface{}) {
-	DefaultLogger.Log(WarnLevel, args...)
-}
-
-func Warnf(template string, args ...interface{}) {
-	DefaultLogger.Logf(WarnLevel, template, args...)
-}
-
-func Error(args ...interface{}) {
-	DefaultLogger.Log(ErrorLevel, args...)
-}
-
-func Errorf(template string, args ...interface{}) {
-	DefaultLogger.Logf(ErrorLevel, template, args...)
-}
-
-func Fatal(args ...interface{}) {
-	DefaultLogger.Log(FatalLevel, args...)
-	os.Exit(1)
-}
-
-func Fatalf(template string, args ...interface{}) {
-	DefaultLogger.Logf(FatalLevel, template, args...)
-	os.Exit(1)
-}
-
-// Returns true if the given level is at or lower the current logger level
-func V(lvl Level) bool {
-	return DefaultLogger.Options().Level <= lvl
+	return InfoLevel, fmt.Errorf("unknown Level String: '%s', use InfoLevel", levelStr)
 }