func run() error { if len(os.Args) < 3 { if len(os.Args) > 1 && (os.Args[1] == "-h" || os.Args[1] == "--help" || os.Args[1] == "help") { help(os.Args[0], 0) } else { help(os.Args[0], 1) } } directory := os.Args[1] idmap := shared.IdmapSet{} testmode := false reverse := false for pos := 2; pos < len(os.Args); pos++ { switch os.Args[pos] { case "-r", "--reverse": reverse = true case "t", "-t", "--test", "test": testmode = true default: var err error idmap, err = idmap.Append(os.Args[pos]) if err != nil { return err } } } if idmap.Len() == 0 { fmt.Printf("No idmaps given\n") help(os.Args[0], 1) } if !testmode && os.Geteuid() != 0 { fmt.Printf("This must be run as root\n") os.Exit(1) } if reverse { return idmap.UidshiftFromContainer(directory, testmode) } return idmap.UidshiftIntoContainer(directory, testmode) }