xmain

type ExitError struct {
	Code    int    `json:"code"`
	Message string `json:"message"`
}

type RunFunc func(context.Context, *State) error

type State struct {
	Name string

	Stdin  io.Reader
	Stdout io.WriteCloser
	Stderr io.WriteCloser

	Log     *cmdlog.Logger
	Env     *xos.Env
	Args    []string
	FlagSet *pflag.FlagSet
}

type UsageError struct {
	Message string `json:"message"`
}