prompt

Documentation

Overview

Package prompt provides functionality to retrieve free-form text, selection, and confirmation input from the user via a terminal.

Index

• Variables
• func RequireNonEmpty(v interface{}) error
• type Option
  • func (o Option) String() string
• type Prompt
  • func New() Prompt
  • func (p Prompt) Confirm(message, help string, promptCfgs ...PromptConfig) (bool, error)
  • func (p Prompt) Get(message, help string, validator ValidatorFunc, promptOpts ...PromptConfig) (string, error)
  • func (p Prompt) GetSecret(message, help string, promptOpts ...PromptConfig) (string, error)
  • func (p Prompt) MultiSelect(message, help string, options []string, validator ValidatorFunc, ...) ([]string, error)
  • func (p Prompt) SelectOne(message, help string, options []string, promptCfgs ...PromptConfig) (string, error)
  • func (p Prompt) SelectOption(message, help string, opts []Option, promptCfgs ...PromptConfig) (value string, err error)
• type PromptConfig
  • func WithConfirmFinalMessage() PromptConfig
  • func WithDefaultInput(s string) PromptConfig
  • func WithDefaultSelections(options []string) PromptConfig
  • func WithFinalMessage(msg string) PromptConfig
  • func WithTrueDefault() PromptConfig
• type ValidatorFunc
  • func RequireMinItems(min int) ValidatorFunc

Variables

var ErrEmptyOptions = errors.New("list of provided options is empty")

ErrEmptyOptions indicates the input options list was empty.

Functions

func RequireNonEmpty

func RequireNonEmpty(v interface{}) error

RequireNonEmpty returns an error if v is a zero-value.

Types

type Option

type Option struct {
	Value string
	Hint  string
}

Option represents a choice with a hint for clarification.

func (Option) String

func (o Option) String() string

String implements the fmt.Stringer interface.

type Prompt

type Prompt func(survey.Prompt, interface{}, ...survey.AskOpt) error

Prompt abstracts the survey.Askone function.

func New

func New() Prompt

New returns a Prompt with default configuration.

func (Prompt) Confirm

func (p Prompt) Confirm(message, help string, promptCfgs ...PromptConfig) (bool, error)

Confirm prompts the user with a yes/no option.

func (Prompt) Get

func (p Prompt) Get(message, help string, validator ValidatorFunc, promptOpts ...PromptConfig) (string, error)

Get prompts the user for free-form text input.

func (Prompt) GetSecret

func (p Prompt) GetSecret(message, help string, promptOpts ...PromptConfig) (string, error)

GetSecret prompts the user for sensitive input. Wraps survey.Password

func (Prompt) MultiSelect

func (p Prompt) MultiSelect(message, help string, options []string, validator ValidatorFunc, promptCfgs ...PromptConfig) ([]string, error)

MultiSelect prompts the user with a list of options to choose from with the arrow keys and enter key.

func (Prompt) SelectOne

func (p Prompt) SelectOne(message, help string, options []string, promptCfgs ...PromptConfig) (string, error)

SelectOne prompts the user with a list of options to choose from with the arrow keys.

func (Prompt) SelectOption

func (p Prompt) SelectOption(message, help string, opts []Option, promptCfgs ...PromptConfig) (value string, err error)

SelectOption prompts the user to select one option from options and returns the Value of the option.

type PromptConfig

type PromptConfig func(*prompt)

PromptConfig is a functional option to configure the prompt.

func WithConfirmFinalMessage

func WithConfirmFinalMessage() PromptConfig

WithConfirmFinalMessage sets a short final message for to confirm the user's input.

func WithDefaultInput

func WithDefaultInput(s string) PromptConfig

WithDefaultInput sets a default message for an input prompt.

func WithDefaultSelections

func WithDefaultSelections(options []string) PromptConfig

WithDefaultSelections selects the options to be checked by default for a multiselect prompt.

func WithFinalMessage

func WithFinalMessage(msg string) PromptConfig

WithFinalMessage sets a final message that replaces the question prompt once the user enters an answer.

func WithTrueDefault

func WithTrueDefault() PromptConfig

WithTrueDefault sets the default for a confirm prompt to true.

type ValidatorFunc

type ValidatorFunc func(interface{}) error

ValidatorFunc defines the function signature for validating inputs.

func RequireMinItems

func RequireMinItems(min int) ValidatorFunc

RequireMinItems enforces at least min elements to be selected from MultiSelect.