rsapi/commands.go
func (a *API) ParseCommandAndFlags(cmd, hrefPrefix string, values ActionCommands) (*CommandTarget, []string, error) {
	resource, vars, err := a.parseResource(cmd, hrefPrefix, values)
	if err != nil {
		return nil, nil, err
	}
	var action *metadata.Action
	elems := strings.Split(cmd, " ")
	actionName := elems[len(elems)-1]
	for _, a := range resource.Actions {
		if a.Name == actionName {
			action = a
			break
		}
	}
	if action == nil {
		supported := make([]string, len(resource.Actions))
		for i, a := range resource.Actions {
			supported[i] = a.Name
		}
		return nil, nil, fmt.Errorf("Unknown %s action '%s'. Supported actions are: %s",
			resource.Name, actionName, strings.Join(supported, ", "))
	}

	path, err := action.URL(vars)
	if err != nil {
		return nil, nil, err
	}
	flags := values[cmd]

	return &CommandTarget{resource, action, path, flags.Href}, flags.Params, nil
}
func (a *API) ParseCommandAndFlags(cmd, hrefPrefix string, values ActionCommands) (*CommandTarget, []string, error) {
	resource, vars, err := a.parseResource(cmd, hrefPrefix, values)
	if err != nil {
		return nil, nil, err
	}
	var action *metadata.Action
	elems := strings.Split(cmd, " ")
	actionName := elems[len(elems)-1]
	for _, a := range resource.Actions {
		if a.Name == actionName {
			action = a
			break
		}
	}
	if action == nil {
		supported := make([]string, len(resource.Actions))
		for i, a := range resource.Actions {
			supported[i] = a.Name
		}
		return nil, nil, fmt.Errorf("Unknown %s action '%s'. Supported actions are: %s",
			resource.Name, actionName, strings.Join(supported, ", "))
	}

	path, err := action.URL(vars)
	if err != nil {
		return nil, nil, err
	}
	flags := values[cmd]

	return &CommandTarget{resource, action, path, flags.Href}, flags.Params, nil
}
// ParseCommandAndFlags parses a command flag and infers the resource, action, href and params.