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README

LOGO

What is this?

A simple logging library.

Usage

In your library:

var Log = logo.New(logo.INFO, nil)

func Hello(){
    Log.I("hello")
    fmt.Println("world")
}

In your app:

1. No settings required!

func main(){
    lib.Hello()
}
// [INFO] hello
// world

1. You can set the minimum log level to display.

• DEBUG < INFO < WARNING < ERROR

func main(){
    lib.Log.Level = Logo.ERROR
    lib.Hello()
}
// world

1. You can also set a custom label for each log level.

func main(){
    lib.Log.LogMessageMap[Logo.INFO] = "[情報] "
    lib.Hello()
}
// [情報] hello
// world

Documentation

Index

• Variables
• type LogLevel
• type Logo
  • func New(level LogLevel, logger *log.Logger) *Logo
  • func (l *Logo) D(format string, v ...interface{})
  • func (l *Logo) E(format string, v ...interface{})
  • func (l *Logo) I(format string, v ...interface{})
  • func (l *Logo) W(format string, v ...interface{})

Variables

var DefaultLogMessageMap = map[LogLevel]string{DEBUG: "[DEBUG] ", INFO: "[INFO] ", WARNING: "[WARNING] ", ERROR: "[ERROR] "}

DefaultLogMessageMap maps LogLevel to logging strings in English.

Types

type LogLevel

type LogLevel uint8

LogLevel represents log levels.

const (
	// DEBUG represents debug messages.
	DEBUG LogLevel = 0
	// INFO represents info messages.
	INFO LogLevel = 1
	// WARNING represents warning messages.
	WARNING LogLevel = 2
	// ERROR represents error messages.
	ERROR LogLevel = 3
)

type Logo

type Logo struct {
	// Logger is the *log.Logger used for the Logo. The default is log.Printf (log.std).
	Logger *log.Logger
	// Level determines the lowest log level to display.
	Level LogLevel
	// LogMessageMap maps LogLevel to logging strings.
	LogMessageMap map[LogLevel]string
}

Logo represents the Logo logger.

func New

func New(level LogLevel, logger *log.Logger) *Logo

New initializes a Logo.

func (*Logo) D

func (l *Logo) D(format string, v ...interface{})

D logs a debug message.

func (*Logo) E

func (l *Logo) E(format string, v ...interface{})

E logs an error message.

func (*Logo) I

func (l *Logo) I(format string, v ...interface{})

I logs an info message.

func (*Logo) W

func (l *Logo) W(format string, v ...interface{})

W logs a warning message.