flog

README

flog

flog is a minimal, formatted, pretty logging package for Go.

It's optimized for human readability.

slog is recommended for more robust logging.

Install

go get go.coder.com/flog

Usage

flog.Info("hello %.3f", 1/3.0)
flog.Success("finished that")
flog.Error("oops")

log := flog.New().WithPrefix("user %v: ", 500)

log.Error("didn't work out")

produces

Documentation

Overview

Package flog provides human-optimized, formatted logging.

Index

• Variables
• func Error(msg string, args ...interface{})
• func Fatal(msg string, args ...interface{})
• func Info(msg string, args ...interface{})
• func Log(l Level, m string, args ...interface{})
• func Success(msg string, args ...interface{})
• type Level
• type Logger
  • func New() *Logger
  • func (l *Logger) Error(msg string, args ...interface{})
  • func (l *Logger) Fatal(msg string, args ...interface{})
  • func (l *Logger) Info(msg string, args ...interface{})
  • func (l *Logger) Log(lvl Level, msg string, args ...interface{})
  • func (l *Logger) Success(msg string, args ...interface{})
  • func (l *Logger) WithPrefix(p string, args ...interface{}) *Logger

Variables

var (
	INFO    = Level(color.HiBlueString("INFO"))
	SUCCESS = Level(color.HiGreenString("SUCCESS"))
	ERROR   = Level(color.RedString("ERROR"))
	FATAL   = Level(color.RedString("FATAL"))
)

Functions

func Error

func Error(msg string, args ...interface{})

func Fatal

func Fatal(msg string, args ...interface{})

func Info

func Info(msg string, args ...interface{})

func Log

func Log(l Level, m string, args ...interface{})

Log logs a message with the default logger.

func Success

func Success(msg string, args ...interface{})

Types

type Level

type Level string

type Logger

type Logger struct {
	W      io.Writer
	Prefix string
}

func New

func New() *Logger

New returns a new logger.

func (*Logger) Error

func (l *Logger) Error(msg string, args ...interface{})

func (*Logger) Fatal

func (l *Logger) Fatal(msg string, args ...interface{})

func (*Logger) Info

func (l *Logger) Info(msg string, args ...interface{})

func (*Logger) Log

func (l *Logger) Log(lvl Level, msg string, args ...interface{})

func (*Logger) Success

func (l *Logger) Success(msg string, args ...interface{})

func (*Logger) WithPrefix

func (l *Logger) WithPrefix(p string, args ...interface{}) *Logger