https://github.com/hashicorp/logutils

Utilities for slightly better logging in Go (Golang).
https://github.com/hashicorp/logutils

Last synced: 6 days ago
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Utilities for slightly better logging in Go (Golang).

• Host: GitHub
• URL: https://github.com/hashicorp/logutils
• Owner: hashicorp
• License: mpl-2.0
• Created: 2013-10-09T07:31:15.000Z (about 11 years ago)
• Default Branch: master
• Last Pushed: 2023-02-01T17:00:49.000Z (almost 2 years ago)
• Last Synced: 2024-10-29T16:58:32.358Z (about 1 month ago)
• Language: Go
• Size: 14.6 KB
• Stars: 368
• Watchers: 304
• Forks: 35
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# 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:

```go

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.