Implemented basic system

vendor/github.com/manifoldco/promptui/CHANGELOG.md

@@ -7,11 +7,24 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## Unreleased
 
+### Added
+
+- Background colors codes and template helpers
+- `AllowEdit` for prompt to prevent deletion of the default value by any key
+- Added `StartInSearchMode` to allow starting the prompt in search mode
+
+### Fixed
+
+- `<Enter>` key press on Windows
+- `juju/ansiterm` dependency
+- `chzyer/readline#136` new api with ReadCloser
+
 ## [0.2.1] - 2017-11-30
 
 ### Fixed
 
 - `SelectWithAdd` panicking on `.Run` due to lack of keys setup
+- Backspace key on Windows
 
 ## [0.2.0] - 2017-11-16
 

vendor/github.com/manifoldco/promptui/Gopkg.lock

@@ -124,6 +124,6 @@
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "160169cbbea61d01890b2670b2cc5448b5b8dd6ebbb18f57bd677c0c7d1f8a42"
+  inputs-digest = "b683f37352cca49de9eefac440a2fbc8d84e1946237577881122b2fe86c9d950"
   solver-name = "gps-cdcl"
   solver-version = 1

vendor/github.com/manifoldco/promptui/Gopkg.toml

@@ -12,5 +12,5 @@ required=[
   branch = "master"
 
 [[constraint]]
-  name = "github.com/juju/master"
+  name = "github.com/juju/ansiterm"
   branch = "master"

vendor/github.com/manifoldco/promptui/codes.go

@@ -33,6 +33,18 @@ const (
 	FGWhite
 )
 
+// Background color attributes
+const (
+	BGBlack attribute = iota + 40
+	BGRed
+	BGGreen
+	BGYellow
+	BGBlue
+	BGMagenta
+	BGCyan
+	BGWhite
+)
+
 // ResetCode is the character code used to reset the terminal formatting
 var ResetCode = fmt.Sprintf("%s%dm", esc, reset)
 
@@ -53,6 +65,14 @@ var FuncMap = template.FuncMap{
 	"magenta":   Styler(FGMagenta),
 	"cyan":      Styler(FGCyan),
 	"white":     Styler(FGWhite),
+	"bgBlack":   Styler(BGBlack),
+	"bgRed":     Styler(BGRed),
+	"bgGreen":   Styler(BGGreen),
+	"bgYellow":  Styler(BGYellow),
+	"bgBlue":    Styler(BGBlue),
+	"bgMagenta": Styler(BGMagenta),
+	"bgCyan":    Styler(BGCyan),
+	"bgWhite":   Styler(BGWhite),
 	"bold":      Styler(FGBold),
 	"faint":     Styler(FGFaint),
 	"italic":    Styler(FGItalic),

vendor/github.com/manifoldco/promptui/keycodes.go

@@ -0,0 +1,25 @@
+// +build !windows
+
+package promptui
+
+import "github.com/chzyer/readline"
+
+var (
+	// KeyEnter is the default key for submission/selection
+	KeyEnter rune = readline.CharEnter
+
+	// KeyBackspace is the default key for deleting input text
+	KeyBackspace rune = readline.CharBackspace
+
+	// KeyPrev is the default key to go up during selection
+	KeyPrev rune = readline.CharPrev
+
+	// KeyNext is the default key to go down during selection
+	KeyNext rune = readline.CharNext
+
+	// KeyBackward is the default key to page up during selection
+	KeyBackward rune = readline.CharBackward
+
+	// KeyForward is the default key to page down during selection
+	KeyForward rune = readline.CharForward
+)

vendor/github.com/manifoldco/promptui/keycodes_windows.go

@@ -0,0 +1,25 @@
+package promptui
+
+// source: https://msdn.microsoft.com/en-us/library/aa243025(v=vs.60).aspx
+
+var (
+	// KeyEnter is the default key for submission/selection
+	KeyEnter rune = 13
+
+	// KeyBackspace is the default key for deleting input text
+	KeyBackspace rune = 8
+
+	// FIXME: keys below are not triggered by readline, not working on Windows
+
+	// KeyPrev is the default key to go up during selection
+	KeyPrev rune = 38
+
+	// KeyNext is the default key to go down during selection
+	KeyNext rune = 40
+
+	// KeyBackward is the default key to page up during selection
+	KeyBackward rune = 37
+
+	// KeyForward is the default key to page down during selection
+	KeyForward rune = 39
+)

vendor/github.com/manifoldco/promptui/prompt.go

@@ -20,6 +20,10 @@ type Prompt struct {
 
 	Default string // Default is the initial value to populate in the prompt
 
+	// AllowEdit lets the user edit the default value. If false, any key press
+	// other than <Enter> automatically clears the default value.
+	AllowEdit bool
+
 	// Validate is optional. If set, this function is used to validate the input
 	// after each character entry.
 	Validate ValidateFunc
@@ -32,11 +36,14 @@ type Prompt struct {
 	// default templates are used.
 	Templates *PromptTemplates
 
+	// IsConfirm sets the prompt to be a [y/N] question.
 	IsConfirm bool
+
+	// IsVimMode enables vi-like movements (hjkl) and editing.
 	IsVimMode bool
 
-	stdin  io.Reader
-	stdout io.Writer
+	stdin  io.ReadCloser
+	stdout io.WriteCloser
 }
 
 // PromptTemplates allow a prompt to be customized following stdlib
@@ -122,7 +129,10 @@ func (p *Prompt) Run() (string, error) {
 
 	var inputErr error
 	input := p.Default
-	eraseDefault := input != ""
+	if p.IsConfirm {
+		input = ""
+	}
+	eraseDefault := input != "" && !p.AllowEdit
 
 	c.SetListener(func(line []rune, pos int, key rune) ([]rune, int, bool) {
 		if line != nil {
@@ -131,15 +141,16 @@ func (p *Prompt) Run() (string, error) {
 
 		switch key {
 		case 0: // empty
-		case readline.CharEnter:
+		case KeyEnter:
 			return nil, 0, false
-		case readline.CharBackspace:
+		case KeyBackspace:
 			if eraseDefault {
 				eraseDefault = false
 				input = ""
 			}
 			if len(input) > 0 {
-				input = input[:len(input)-1]
+				r := []rune(input)
+				input = string(r[:len(r)-1])
 			}
 		default:
 			if eraseDefault {
@@ -220,9 +231,12 @@ func (p *Prompt) Run() (string, error) {
 	prompt := render(p.Templates.valid, p.Label)
 	prompt = append(prompt, []byte(echo)...)
 
-	if p.IsConfirm && strings.ToLower(echo) != "y" {
-		prompt = render(p.Templates.invalid, p.Label)
-		err = ErrAbort
+	if p.IsConfirm {
+		lowerDefault := strings.ToLower(p.Default)
+		if strings.ToLower(echo) != "y" && (lowerDefault != "y" || (lowerDefault == "y" && echo != "")) {
+			prompt = render(p.Templates.invalid, p.Label)
+			err = ErrAbort
+		}
 	}
 
 	sb.Reset()
@@ -247,7 +261,6 @@ func (p *Prompt) prepareTemplates() error {
 	bold := Styler(FGBold)
 
 	if p.IsConfirm {
-		p.Default = ""
 		if tpls.Confirm == "" {
 			confirm := "y/N"
 			if strings.ToLower(p.Default) == "y" {

vendor/github.com/manifoldco/promptui/select.go

@@ -43,6 +43,9 @@ type Select struct {
 	// Searcher can be implemented to teach the select how to search for items.
 	Searcher list.Searcher
 
+	// Starts the prompt in search mode.
+	StartInSearchMode bool
+
 	label string
 
 	list *list.List
@@ -150,11 +153,11 @@ func (s *Select) innerRun(starting int, top rune) (int, string, error) {
 
 	var searchInput []rune
 	canSearch := s.Searcher != nil
-	searchMode := false
+	searchMode := s.StartInSearchMode
 
 	c.SetListener(func(line []rune, pos int, key rune) ([]rune, int, bool) {
 		switch {
-		case key == readline.CharEnter:
+		case key == KeyEnter:
 			return nil, 0, true
 		case key == s.Keys.Next.Code || (key == 'j' && !searchMode):
 			s.list.Next()
@@ -172,7 +175,7 @@ func (s *Select) innerRun(starting int, top rune) (int, string, error) {
 			} else {
 				searchMode = true
 			}
-		case key == readline.CharBackspace:
+		case key == KeyBackspace:
 			if !canSearch || !searchMode {
 				break
 			}
@@ -442,10 +445,10 @@ func (s *Select) setKeys() {
 		return
 	}
 	s.Keys = &SelectKeys{
-		Prev:     Key{Code: readline.CharPrev, Display: "↑"},
-		Next:     Key{Code: readline.CharNext, Display: "↓"},
-		PageUp:   Key{Code: readline.CharBackward, Display: "←"},
-		PageDown: Key{Code: readline.CharForward, Display: "→"},
+		Prev:     Key{Code: KeyPrev, Display: "↑"},
+		Next:     Key{Code: KeyNext, Display: "↓"},
+		PageUp:   Key{Code: KeyBackward, Display: "←"},
+		PageDown: Key{Code: KeyForward, Display: "→"},
 		Search:   Key{Code: '/', Display: "/"},
 	}
 }