log

A lightweight, leveled logging package for Go.

Install

go get github.com/tevino/log

Features

• Leveled logging and filtering
• Colored output
• Log with file name and line number

Example

import "github.com/tevino/log"

log.SetOutputLevel(log.INFO)

log.Debugf("Output level is %s.", log.OutputLevel())
log.Info("Thus only this line is printed.")

Benchmark

BenchmarkLog15-4              300000          4391 ns/op        1202 B/op         16 allocs/op
BenchmarkLogrus-4             500000          3444 ns/op        1715 B/op         24 allocs/op
BenchmarkLoggo-4              500000          3275 ns/op         344 B/op         11 allocs/op
BenchmarkGoLogging-4         1000000          1136 ns/op         601 B/op         10 allocs/op
BenchmarkThisPackage-4       3000000           731 ns/op         214 B/op          2 allocs/op
BenchmarkStdLog-4            2000000           571 ns/op         174 B/op          2 allocs/op

Acknowledgements

• @kirk91: Provide APIs to make it possible for user to specify a custom caller offset.