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// Copyright 2017 Frédéric Guillot. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package logger
import (
"fmt"
"os"
"time"
)
// Debug sends a debug log message.
func Debug(format string, v ...interface{}) {
formatMessage("DEBUG", format, v...)
}
// Info sends an info log message.
func Info(format string, v ...interface{}) {
formatMessage("INFO", format, v...)
}
// Error sends an error log message.
func Error(format string, v ...interface{}) {
formatMessage("ERROR", format, v...)
}
// Fatal sends a fatal log message and stop the execution of the program.
func Fatal(format string, v ...interface{}) {
formatMessage("FATAL", format, v...)
os.Exit(1)
}
func formatMessage(level, format string, v ...interface{}) {
prefix := fmt.Sprintf("[%s] [%s] ", time.Now().Format("2006-01-02T15:04:05"), level)
fmt.Fprintf(os.Stderr, prefix+format+"\n", v...)
}
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