Golang Papertrail

README.md

Usage

go build log.go
./log --port="1337" 
./log --port="-1" # Prefer local logger

log.go

package main

import (
	"fmt"
	"net"
	"os"
	"time"
	"flag"
)

const (
	APP    = "my_app"
	format = "Jan 2 15:04:05"
	INFO   = "INFO"
	ERROR  = "ERROR"
	NOTICE = "NOTICE"
)

var (
  papertrail = flag.String("port", "1337", "Papertrail port to send to, set to -1 to disable Papertrail logging") 
	date       = time.Now().Format(format)
)

func init() {
  flag.Parse()
}

func main() {
  log(INFO, "Hello from papertrail")
  log(ERROR, "Something bad happened")
  log(NOTICE, "Important")
}

func logMsg(typ, msg string) string {
	return fmt.Sprintf("<22> %s %s: [%s] %s", date, APP, typ, msg)
}

func log(typ, msg string) {
	if *papertrail == "-1" {
		fmt.Fprintln(os.Stdout, logMsg(typ, msg))
		return
	}

	conn, err := net.Dial("udp", "logs.papertrailapp.com:"+*papertrail)
	if err != nil {
		fmt.Fprintf(os.Stderr, "%s %s: [%s] %s\n", date, APP, ERROR, err)
		return
	}

	_, err = conn.Write([]byte(logMsg(typ, msg)))
	if err != nil {
		fmt.Fprintf(os.Stderr, "%s %s: [%s] %s\n", date, APP, ERROR, err)
		conn.Close()
		return
	}
	conn.Close()
}