update for github.com/AlecAivazis/survey => gopkg.in/AlecAivazis/survey.v1 package

vendor/gopkg.in/AlecAivazis/survey.v1/password.go

@@ -0,0 +1,84 @@
+package survey
+
+import (
+	"os"
+
+	"github.com/AlecAivazis/survey/core"
+	"github.com/AlecAivazis/survey/terminal"
+)
+
+/*
+Password is like a normal Input but the text shows up as *'s and there is no default. Response
+type is a string.
+
+	password := ""
+	prompt := &survey.Password{ Message: "Please type your password" }
+	survey.AskOne(prompt, &password, nil)
+*/
+type Password struct {
+	core.Renderer
+	Message string
+	Help    string
+}
+
+type PasswordTemplateData struct {
+	Password
+	ShowHelp bool
+}
+
+// Templates with Color formatting. See Documentation: https://github.com/mgutz/ansi#style-format
+var PasswordQuestionTemplate = `
+{{- if .ShowHelp }}{{- color "cyan"}}{{ HelpIcon }} {{ .Help }}{{color "reset"}}{{"\n"}}{{end}}
+{{- color "green+hb"}}{{ QuestionIcon }} {{color "reset"}}
+{{- color "default+hb"}}{{ .Message }} {{color "reset"}}
+{{- if and .Help (not .ShowHelp)}}{{color "cyan"}}[{{ HelpInputRune }} for help]{{color "reset"}} {{end}}`
+
+func (p *Password) Prompt() (line interface{}, err error) {
+	// render the question template
+	out, err := core.RunTemplate(
+		PasswordQuestionTemplate,
+		PasswordTemplateData{Password: *p},
+	)
+	terminal.Print(out)
+	if err != nil {
+		return "", err
+	}
+
+	rr := terminal.NewRuneReader(os.Stdin)
+	rr.SetTermMode()
+	defer rr.RestoreTermMode()
+
+	// no help msg?  Just return any response
+	if p.Help == "" {
+		line, err := rr.ReadLine('*')
+		return string(line), err
+	}
+
+	// process answers looking for help prompt answer
+	for {
+		line, err := rr.ReadLine('*')
+		if err != nil {
+			return string(line), err
+		}
+
+		if string(line) == string(core.HelpInputRune) {
+			// terminal will echo the \n so we need to jump back up one row
+			terminal.CursorPreviousLine(1)
+
+			err = p.Render(
+				PasswordQuestionTemplate,
+				PasswordTemplateData{Password: *p, ShowHelp: true},
+			)
+			if err != nil {
+				return "", err
+			}
+			continue
+		}
+		return string(line), err
+	}
+}
+
+// Cleanup hides the string with a fixed number of characters.
+func (prompt *Password) Cleanup(val interface{}) error {
+	return nil
+}