package input import ( "io" "os" "syscall" "golang.org/x/term" ) // Terminal is a terminal used for input. If `nil`, stdin is used. var Terminal *term.Terminal // ReadWriter combiner reader and writer. type ReadWriter struct { io.Reader io.Writer } // ReadLine reads line from the input without trailing '\n' func ReadLine(prompt string) (string, error) { trm := Terminal if trm == nil { s, err := term.MakeRaw(syscall.Stdin) if err != nil { panic(err) } defer term.Restore(syscall.Stdin, s) trm = term.NewTerminal(ReadWriter{ Reader: os.Stdin, Writer: os.Stdout, }, "") } return readLine(trm, prompt) } func readLine(trm *term.Terminal, prompt string) (string, error) { _, err := trm.Write([]byte(prompt)) if err != nil { return "", err } return trm.ReadLine() } // ReadPassword reads user password with prompt. func ReadPassword(prompt string) (string, error) { trm := Terminal if trm == nil { s, err := term.MakeRaw(syscall.Stdin) if err != nil { panic(err) } defer term.Restore(syscall.Stdin, s) trm = term.NewTerminal(ReadWriter{os.Stdin, os.Stdout}, prompt) } return trm.ReadPassword(prompt) }