History

Martin Atkins 1bb79696c6 vendor: update to latest github.com/zclconf/go-cty This includes a bugfix to the cty/msgpack package to ensure correct decoding of unknown and null values. This also includes updates to cty's dependencies.		2018-10-16 19:14:11 -07:00
..
.gitignore	vendor: update to latest github.com/zclconf/go-cty	2018-10-16 19:14:11 -07:00
LICENSE	Vendor all dependencies w/ Godep	2016-01-29 15:08:48 -06:00
README.md	Vendor all dependencies w/ Godep	2016-01-29 15:08:48 -06:00
level.go	Vendor all dependencies w/ Godep	2016-01-29 15:08:48 -06:00

README.md

logutils

logutils is a Go package that augments the standard library "log" package to make logging a bit more modern, without fragmenting the Go ecosystem with new logging packages.

The simplest thing that could possibly work

Presumably your application already uses the default log package. To switch, you'll want your code to look like the following:

package main

import (
	"log"
	"os"

	"github.com/hashicorp/logutils"
)

func main() {
	filter := &logutils.LevelFilter{
		Levels: []logutils.LogLevel{"DEBUG", "WARN", "ERROR"},
		MinLevel: logutils.LogLevel("WARN"),
		Writer: os.Stderr,
	}
	log.SetOutput(filter)

	log.Print("[DEBUG] Debugging") // this will not print
	log.Print("[WARN] Warning") // this will
	log.Print("[ERROR] Erring") // and so will this
	log.Print("Message I haven't updated") // and so will this
}

This logs to standard error exactly like go's standard logger. Any log messages you haven't converted to have a level will continue to print as before.