func (cmd *Files) Requirements(requirementsFactory requirements.Factory, c flags.FlagContext) ([]requirements.Requirement, error) { if len(c.Args()) != 1 && len(c.Args()) != 2 { cmd.ui.Failed(T("Incorrect Usage. Requires an argument\n\n") + commandregistry.Commands.CommandUsage("files")) return nil, fmt.Errorf("Incorrect usage: %d arguments of %d required", len(c.Args()), 1) } cmd.appReq = requirementsFactory.NewDEAApplicationRequirement(c.Args()[0]) reqs := []requirements.Requirement{ requirementsFactory.NewLoginRequirement(), requirementsFactory.NewTargetedSpaceRequirement(), cmd.appReq, } return reqs, nil }