logger

Logger is a simple cross platform Go logging library for Windows and Linux, it can log to the Windows event log, Linux syslog, and an io.Writer.

This is not an official Google product.

Usage

Set up logger to log the system log (event log or syslog) and a file, include a flag to turn up verbosity:

import (
  "flag"
  "os"
  
  "github.com/google/logger"
)

const logPath = "/some/location/example.log"

var verbose = flag.Bool("verbose", false, "print info level logs to stdout")

func main() {
  flag.Parse()

  lf, err := os.OpenFile(logPath, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0660)
  if err != nil {
    logger.Fatalf("Failed to open log file: %v", err)
  }
  defer lf.Close()

  logger.Init("LoggerExample", *verbose, true, lf)

  logger.Info("I'm about to do something!")
  if err := doSomething(); err != nil {
    logger.Errorf("Error running doSomething: %v", err)
  }
}