87 lines
2.0 KiB
Go
87 lines
2.0 KiB
Go
package survey
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import (
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"fmt"
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"gopkg.in/AlecAivazis/survey.v1/core"
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"gopkg.in/AlecAivazis/survey.v1/terminal"
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)
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/*
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Password is like a normal Input but the text shows up as *'s and there is no default. Response
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type is a string.
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password := ""
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prompt := &survey.Password{ Message: "Please type your password" }
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survey.AskOne(prompt, &password, nil)
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*/
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type Password struct {
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core.Renderer
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Message string
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Help string
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}
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type PasswordTemplateData struct {
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Password
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ShowHelp bool
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}
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// Templates with Color formatting. See Documentation: https://github.com/mgutz/ansi#style-format
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var PasswordQuestionTemplate = `
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{{- if .ShowHelp }}{{- color "cyan"}}{{ HelpIcon }} {{ .Help }}{{color "reset"}}{{"\n"}}{{end}}
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{{- color "green+hb"}}{{ QuestionIcon }} {{color "reset"}}
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{{- color "default+hb"}}{{ .Message }} {{color "reset"}}
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{{- if and .Help (not .ShowHelp)}}{{color "cyan"}}[{{ HelpInputRune }} for help]{{color "reset"}} {{end}}`
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func (p *Password) Prompt() (line interface{}, err error) {
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// render the question template
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out, err := core.RunTemplate(
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PasswordQuestionTemplate,
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PasswordTemplateData{Password: *p},
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)
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fmt.Fprint(terminal.NewAnsiStdout(p.Stdio().Out), out)
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if err != nil {
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return "", err
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}
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rr := p.NewRuneReader()
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rr.SetTermMode()
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defer rr.RestoreTermMode()
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// no help msg? Just return any response
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if p.Help == "" {
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line, err := rr.ReadLine('*')
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return string(line), err
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}
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cursor := p.NewCursor()
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// process answers looking for help prompt answer
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for {
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line, err := rr.ReadLine('*')
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if err != nil {
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return string(line), err
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}
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if string(line) == string(core.HelpInputRune) {
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// terminal will echo the \n so we need to jump back up one row
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cursor.PreviousLine(1)
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err = p.Render(
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PasswordQuestionTemplate,
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PasswordTemplateData{Password: *p, ShowHelp: true},
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)
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if err != nil {
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return "", err
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}
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continue
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}
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return string(line), err
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}
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}
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// Cleanup hides the string with a fixed number of characters.
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func (prompt *Password) Cleanup(val interface{}) error {
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return nil
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}
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