prompt

package

v0.2.0 Latest Latest Go to latest Published: Oct 2, 2026 License: MIT Imports: 8 Imported by: 0

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Package prompt implements the small set of interactive TTY prompts SSLKnife needs: confirmations, passwords, free text and choices.

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var ErrNotInteractive = errors.New("input required but no terminal is attached")

ErrNotInteractive is returned when a prompt is needed but no terminal is attached. Callers should tell the user which flag or env var to use.

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type Prompter struct {
	// contains filtered or unexported fields
}

Prompter reads answers from in and writes questions to out.

func New(in io.Reader, out io.Writer) *Prompter

New creates a prompter. Prompts are only allowed when in is a terminal.

func NewScripted(in io.Reader, out io.Writer) *Prompter

NewScripted creates a prompter that reads answers from in regardless of whether it is a terminal. Used by tests.

func (p *Prompter) Choose(question string, options []string, def int) (int, error)

Choose presents numbered options and returns the selected index.

func (p *Prompter) Confirm(question string, def bool) (bool, error)

Confirm asks a yes/no question. An empty answer returns def.

func (p *Prompter) Interactive() bool

Interactive reports whether prompting is possible.

func (p *Prompter) Line(question, def string) (string, error)

Line asks for a line of text. An empty answer returns def.

func (p *Prompter) Lines(question string) ([]string, error)

Lines reads values until an empty line.

func (p *Prompter) NewPassword(question string, minLen int) ([]byte, error)

NewPassword asks for a password twice and checks that both match.

func (p *Prompter) Password(question string) ([]byte, error)

Password reads a secret without echo. The caller should zero the result.