func registerCliFlagsWithPassgoRegistrar(passgo *app.App, flagSet *flag.FlagSet) {
passgo.Register("passgoFlags", PassgoFlags)
flagsToParse := passgo.Lookup("passgoFlags").([]PassgoFlag)
for _, flag := range flagsToParse {
flagSet.Var(flag, flag.Name(), flag.Usage())
passgo.Register(flag.Name(), flag)
}
}
func Parse(passgo *app.App) {
flagSet := flag.NewFlagSet("passgoFlags", flag.ExitOnError)
setUsage(flagSet)
registerCliFlagsWithPassgoRegistrar(passgo, flagSet)
flagSet.Parse(os.Args[1:])
flagSet.Visit(thenRegisterCommandToExecute(passgo))
if passgo.Lookup("commandToExecute") == nil {
// No executable command was provided by the user
// on the command line; print Usage.
flagSet.Usage()
}
}
func processInput(passgo *app.App) error {
cli.Parse(passgo)
command := passgo.Lookup("commandToExecute").(cmd.Command)
if err := command.ApplyCommandParamsFrom(passgo); err != nil {
return err
}
execute := command.ExecuteFn()
cmdResult, err := execute()
if err != nil {
return err
}
_, err = displayOutputTo(os.Stdout, cmdResult)
if err != nil {
return err
}
return nil
}