flags dragons

flagsexample.go

package main

import (
	"fmt"
	"flag"
)

var (
	flagName = flag.String("name", "default", "myname")
	flagPlace = flag.String("place", "france", "myname")
	flagNumber = flag.Int("number", 1, "myname")
)

func main() {
	x := flags()
	fmt.Println(x)
	flag.Parse()
	fmt.Println(x)
	x = flags()
	fmt.Println(x)
}

type Conf struct {
	Name   string
	Place  string
	Number int
}

func flags() *Conf {
	conf := &Conf {
		Name: *flagName,
		Place: *flagPlace,
		Number: *flagNumber,
	}
	return conf
}

gistfile1.txt

abraithwaite at alan-mbpr in ~
14:11:00 $ go run /tmp/play.go -name alan -place sfo -number 5
&{default france 1}
&{default france 1}
&{alan sfo 5}