func main() {
tgt := &Config{}
c := cstruct.MustNew(tgt, "example")
configurable.Register(c)
adaptflag.AdaptWithFunc(func(info adaptflag.Info) {
flag.Var(info.Value, info.Name, info.Usage)
})
flag.Parse()
err := adaptconf.Load("exampleapp2")
if err != nil {
fmt.Printf("%v\n", err)
}
fmt.Printf("%#v\n", tgt)
}
func Example() {
type Config struct {
Bind string `usage:"Address to bind server to (e.g. :80)" default:":80"`
Foo string `usage:"Some flag" default:""`
Bar int `usage:"Some other flag" default:"42"`
DoStuff bool `usage:"Do stuff?" default:"false"`
}
cfg := &Config{}
configurable.Register(cstruct.MustNew(cfg, "test"))
adaptflag.Adapt()
flag.Parse()
fmt.Printf("Bind: %s\n", cfg.Bind)
fmt.Printf("Foo: %s\n", cfg.Foo)
fmt.Printf("Bar: %d\n", cfg.Bar)
fmt.Printf("Do Stuff: %v\n", cfg.DoStuff)
}
// Parse configuration values. tgt should be a pointer to a structure to be
// filled using cstruct. If nil, no structure is registered using cstruct.
func (cfg *Configurator) Parse(tgt interface{}) error {
if tgt != nil && cfg.ProgramName != "" {
if exepath.ProgramNameSetter == "default" {
exepath.ProgramName = cfg.ProgramName
}
configurable.Register(cstruct.MustNew(tgt, cfg.ProgramName))
}
adaptflag.Adapt()
adaptenv.Adapt()
flag.Parse()
if cfg.ProgramName != "" {
err := adaptconf.Load(cfg.ProgramName)
if err != nil {
return err
}
}
cfg.configFilePath = adaptconf.LastConfPath()
return nil
}