Idea to use define common flags in go libraries.

flags_pattern.go

package main

import (
        "flag"
        "fmt"
)

type Config struct {
        A *string
        B *int
        C *bool
}

func Flags() Config {
        a := flag.String("a", "default", "a")
        b := flag.Int("b", 0, "a")
        c := flag.Bool("c", false, "asdf")
        return Config{
                A: a,
                B: b,
                C: c,
        }

}

func main() {
        d := Flags()
        flag.Parse()
        fmt.Println(*d.A)
        fmt.Println(*d.B)
        fmt.Println(*d.C)
}

gistfile1.txt

14:15:45 $ go run flags_pattern.go -a=asdf -b=32 -c
asdf
32
true