flagx

README

go-flagx

this package is flag extentions. for me

Usage

• StringSlice

// command -name taro -name hanako -name jiro
var names = flagx.StringSlice([]string)
flag.Var(&names, "name", "name list")
flag.Parse()

// names = []string{"taro", "hanako", "jiro"}

• EnvToFlagWithPrefix

// APP_NAME=foo APP_PORT=5000 command
var (
    name string
    port int
)
flag.StringVar(&name, "name", "", "set name") 
flag.IntVar(&port, "port", 8080, "listen port")
flag.VisitAll(flagx.EnvToFlagWithPrefix("APP_"))
flag.Parse()

// name = "foo", port = 5000

Documentation

Index

• Variables
• func EnvToFlagWithPrefix(prefix string) func(f *flag.Flag)
• type StringSlice
  • func (ss *StringSlice) Set(s string) error
  • func (ss *StringSlice) String() string

Variables

var EnvToFlag = EnvToFlagWithPrefix("")

EnvToFlag is func for set to flag value from enviroments

Functions

func EnvToFlagWithPrefix

func EnvToFlagWithPrefix(prefix string) func(f *flag.Flag)

EnvToFlagWithPrefix return the func for set to flag value from enviroments value with prefix

Types

type StringSlice

type StringSlice []string

StringSlice is a implemented `flag.Value` for string slice

func (*StringSlice) Set

func (ss *StringSlice) Set(s string) error

func (*StringSlice) String

func (ss *StringSlice) String() string