hay-kot / yal

Yet Another Logger

This is a tiny dependency free library for very simple logging for applications and scripts where logging is a small part of the process and not used for robust metric collection. This should, for example, not be used for a large web server or background process. It's specifically developed for easily adding a logger into a CLI application or script.

If you do end up using this, you should vendor, or copy it into your code base.

Features

• Leveled Logger
• Optional Colored logging

Example

2022-07-21 14:41:56: [INFO] This is a info message
2022-07-21 14:41:56: [DEBUG] This is a debug message
2022-07-21 14:41:56: [ERROR] This is a error message
2022-07-21 14:41:56: [FATAL] This is a fatal message

Usage

Singleton Logger

The library can be used as an easy drop in logger that acts as a singleton. There are top level methods for Info, Debug, Error, Warn, and Fatal logging that call the top level Log variable which is an instance of the Logger struct.

package main

import (
	"fmt"

	"github.com/hay-kot/yal"
)

func main() {
	yal.Log.Level = yal.LevelDebug // Set the global log level

	fmt.Println("\nGlobal Logger: Color")

	yal.Info("This is a info message")
	yal.Debug("This is a debug message")
	yal.Error("This is a error message")
	yal.Fatal("This is a fatal message")
}