zdefaults

README

zdefaults

Set default values for a struct using tags. Will ignore any values that aren't already at their zero value. Supports parsing time.Duration and time.Time as well as custom implementations of the Settable interface.

Example

Set defaults for an example file server configuration.

type Config struct {
  Addr  string    `default:":80"`
  Roots []string  `default:"/var/www,/home/www"`
  Ints  []int     // ignored
}

func main () {
  conf := Config{}
  err = zdefaults.SetDefaults(&conf)
}

time.Time

type Config struct {
  Time          time.Time     `default:"2009-01-20"`
  CustomTime    time.Time     `default:"random-20-05-21" time-format:"random-06-01-02"`
  CacheDuration time.Duration `default:"10s"`
}

func main () {
  conf := FileServerConfig{}
  err = zdefaults.SetDefaults(&conf)
}

Documentation

Index

• func Set(val interface{}) (err error)
• type Settable

Functions

func Set

func Set(val interface{}) (err error)

Types

type Settable

type Settable interface {
	Set(val string) error
	String() string
}