go-logging

Logging utility. Control verbosity using an environment variable.

Import

go get github.com/nu12/go-logging

Usage

package main

import "github.com/nu12/go-logging"

func main(){
    var log = logging.NewLogger()

    log.Debug("To print this line, set VERBOSITY to 4")
    
    log.Info("To print this line, set VERBOSITY to 3 or higher")

    log.Warning("To print this line, set VERBOSITY to 2 or higher")

    log.Error(errors.New("To print this line, set VERBOSITY to 1 or higher"))

    log.Fatal(errors.New("This will exit the program with code 1"))
}

If VERBOSITY is not provided as an environment variable Info is used by default. All logs with the corresponding verbosity and lower will be printed.

Note that log.Error and log.Fatal receive an error as argument. The last also terminates the program with exit code 1.