Merge pull request #5744 from vvoland/image-tree-chips

image/tree: Chips to represent "in use"

cli/command/image/push.go

@@ -8,7 +8,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"strings"
 
 	"github.com/containerd/platforms"
 	"github.com/distribution/reference"
@@ -17,6 +16,7 @@ import (
 	"github.com/docker/cli/cli/command/completion"
 	"github.com/docker/cli/cli/internal/jsonstream"
 	"github.com/docker/cli/cli/streams"
+	"github.com/docker/cli/internal/tui"
 	"github.com/docker/docker/api/types/auxprogress"
 	"github.com/docker/docker/api/types/image"
 	registrytypes "github.com/docker/docker/api/types/registry"
@@ -78,6 +78,7 @@ Image index won't be pushed, meaning that other manifests, including attestation
 //nolint:gocyclo
 func RunPush(ctx context.Context, dockerCli command.Cli, opts pushOptions) error {
 	var platform *ocispec.Platform
+	out := tui.NewOutput(dockerCli.Out())
 	if opts.platform != "" {
 		p, err := platforms.Parse(opts.platform)
 		if err != nil {
@@ -86,7 +87,7 @@ func RunPush(ctx context.Context, dockerCli command.Cli, opts pushOptions) error
 		}
 		platform = &p
 
-		printNote(dockerCli, `Using --platform pushes only the specified platform manifest of a multi-platform image index.
+		out.PrintNote(`Using --platform pushes only the specified platform manifest of a multi-platform image index.
 Other components, like attestations, will not be included.
 To push the complete multi-platform image, remove the --platform flag.
 `)
@@ -132,8 +133,7 @@ To push the complete multi-platform image, remove the --platform flag.
 
 	defer func() {
 		for _, note := range notes {
-			fmt.Fprintln(dockerCli.Err(), "")
+			out.PrintNote(note)
-			printNote(dockerCli, note)
 		}
 	}()
 
@@ -183,25 +183,3 @@ func handleAux() func(jm jsonstream.JSONMessage) {
 		}
 	}
 }
-
-func printNote(dockerCli command.Cli, format string, args ...any) {
-	if dockerCli.Err().IsTerminal() {
-		format = strings.ReplaceAll(format, "--platform", aec.Bold.Apply("--platform"))
-	}
-
-	header := " Info -> "
-	padding := len(header)
-	if dockerCli.Err().IsTerminal() {
-		padding = len("i Info > ")
-		header = aec.Bold.Apply(aec.LightCyanB.Apply(aec.BlackF.Apply("i")) + " " + aec.LightCyanF.Apply("Info → "))
-	}
-
-	_, _ = fmt.Fprint(dockerCli.Err(), header)
-	s := fmt.Sprintf(format, args...)
-	for idx, line := range strings.Split(s, "\n") {
-		if idx > 0 {
-			_, _ = fmt.Fprint(dockerCli.Err(), strings.Repeat(" ", padding))
-		}
-		_, _ = fmt.Fprintln(dockerCli.Err(), aec.Italic.Apply(line))
-	}
-}

cli/command/image/tree.go

@@ -5,16 +5,16 @@ import (
 	"fmt"
 	"sort"
 	"strings"
-	"unicode/utf8"
 
 	"github.com/containerd/platforms"
 	"github.com/docker/cli/cli/command"
-	"github.com/docker/cli/cli/streams"
+	"github.com/docker/cli/internal/tui"
 	"github.com/docker/docker/api/types/filters"
 	imagetypes "github.com/docker/docker/api/types/image"
 	"github.com/docker/docker/pkg/stringid"
 	"github.com/docker/go-units"
 	"github.com/morikuni/aec"
+	"github.com/opencontainers/go-digest"
 )
 
 type treeOptions struct {
@@ -42,6 +42,8 @@ func runTree(ctx context.Context, dockerCLI command.Cli, opts treeOptions) error
 	view := treeView{
 		images: make([]topImage, 0, len(images)),
 	}
+	attested := make(map[digest.Digest]bool)
+
 	for _, img := range images {
 		details := imageDetails{
 			ID:        img.ID,
@@ -52,6 +54,10 @@ func runTree(ctx context.Context, dockerCLI command.Cli, opts treeOptions) error
 		var totalContent int64
 		children := make([]subImage, 0, len(img.Manifests))
 		for _, im := range img.Manifests {
+			if im.Kind == imagetypes.ManifestKindAttestation {
+				attested[im.AttestationData.For] = true
+				continue
+			}
 			if im.Kind != imagetypes.ManifestKindImage {
 				continue
 			}
@@ -119,8 +125,59 @@ type subImage struct {
 
 const columnSpacing = 3
 
+var chipInUse = imageChip{
+	letter: "U",
+	desc:   "In Use",
+	fg:     0,
+	bg:     14,
+	check:  func(d *imageDetails) bool { return d.InUse },
+}
+
+var chipPlaceholder = tui.Str{
+	Plain: " ",
+	Fancy: "   ",
+}
+
+type imageChip struct {
+	desc   string
+	fg, bg int
+	letter string
+	check  func(*imageDetails) bool
+}
+
+func (c imageChip) String(isTerm bool) string {
+	return tui.Str{
+		Plain: c.letter,
+		Fancy: tui.Chip(c.fg, c.bg, " "+c.letter+" "),
+	}.String(isTerm)
+}
+
+var allChips = []imageChip{
+	chipInUse,
+}
+
+func getPossibleChips(view treeView) (chips []imageChip) {
+	remaining := make([]imageChip, len(allChips))
+	copy(remaining, allChips)
+
+	var possible []imageChip
+	for _, img := range view.images {
+		for _, c := range img.Children {
+			for idx := len(remaining) - 1; idx >= 0; idx-- {
+				chip := remaining[idx]
+				if chip.check(&c.Details) {
+					possible = append(possible, chip)
+					remaining = append(remaining[:idx], remaining[idx+1:]...)
+				}
+			}
+		}
+	}
+
+	return possible
+}
+
 func printImageTree(dockerCLI command.Cli, view treeView) error {
-	out := dockerCLI.Out()
+	out := tui.NewOutput(dockerCLI.Out())
 	_, width := out.GetTtySize()
 	if width == 0 {
 		width = 80
@@ -129,24 +186,17 @@ func printImageTree(dockerCLI command.Cli, view treeView) error {
 		width = 20
 	}
 
-	warningColor := aec.LightYellowF
+	topNameColor := out.Color(aec.NewBuilder(aec.BlueF, aec.Bold).ANSI)
-	headerColor := aec.NewBuilder(aec.DefaultF, aec.Bold).ANSI
+	normalColor := out.Color(tui.ColorSecondary)
-	topNameColor := aec.NewBuilder(aec.BlueF, aec.Bold).ANSI
+	untaggedColor := out.Color(tui.ColorTertiary)
-	normalColor := aec.NewBuilder(aec.DefaultF).ANSI
+	isTerm := out.IsTerminal()
-	greenColor := aec.NewBuilder(aec.GreenF).ANSI
-	untaggedColor := aec.NewBuilder(aec.Faint).ANSI
-	if !out.IsTerminal() {
-		headerColor = noColor{}
-		topNameColor = noColor{}
-		normalColor = noColor{}
-		greenColor = noColor{}
-		warningColor = noColor{}
-		untaggedColor = noColor{}
-	}
 
-	_, _ = fmt.Fprintln(out, warningColor.Apply("WARNING: This is an experimental feature. The output may change and shouldn't be depended on."))
+	out.PrintlnWithColor(tui.ColorWarning, "WARNING: This is an experimental feature. The output may change and shouldn't be depended on.")
-	_, _ = fmt.Fprintln(out, "")
 
+	out.Println(generateLegend(out, width))
+	out.Println()
+
+	possibleChips := getPossibleChips(view)
 	columns := []imgColumn{
 		{
 			Title: "Image",
@@ -178,19 +228,68 @@ func printImageTree(dockerCLI command.Cli, view treeView) error {
 			},
 		},
 		{
-			Title: "In Use",
+			Title: "Extra",
-			Align: alignCenter,
+			Align: alignLeft,
-			Width: 6,
+			Width: func() int {
-			Color: &greenColor,
+				maxChipsWidth := 0
-			DetailsValue: func(d *imageDetails) string {
+				for _, chip := range possibleChips {
-				if d.InUse {
+					s := chip.String(isTerm)
-					return "✔"
+					l := tui.Width(s)
+					maxChipsWidth += l
 				}
-				return " "
+
+				le := len("Extra")
+				if le > maxChipsWidth {
+					return le
+				}
+				return maxChipsWidth
+			}(),
+			Color: &tui.ColorNone,
+			DetailsValue: func(d *imageDetails) string {
+				var out string
+				for _, chip := range possibleChips {
+					if chip.check(d) {
+						out += chip.String(isTerm)
+					} else {
+						out += chipPlaceholder.String(isTerm)
+					}
+				}
+				return out
 			},
 		},
 	}
 
+	columns = adjustColumns(width, columns, view.images)
+
+	// Print columns
+	for i, h := range columns {
+		if i > 0 {
+			_, _ = fmt.Fprint(out, strings.Repeat(" ", columnSpacing))
+		}
+
+		_, _ = fmt.Fprint(out, h.Print(tui.ColorTitle, strings.ToUpper(h.Title)))
+	}
+	_, _ = fmt.Fprintln(out)
+
+	// Print images
+	for _, img := range view.images {
+		printNames(out, columns, img, topNameColor, untaggedColor)
+		printDetails(out, columns, normalColor, img.Details)
+
+		if len(img.Children) > 0 || view.imageSpacing {
+			_, _ = fmt.Fprintln(out)
+		}
+		printChildren(out, columns, img, normalColor)
+		_, _ = fmt.Fprintln(out)
+	}
+
+	return nil
+}
+
+// adjustColumns adjusts the width of the first column to maximize the space
+// available for image names and removes any columns that would be too narrow
+// to display their content.
+func adjustColumns(width uint, columns []imgColumn, images []topImage) []imgColumn {
 	nameWidth := int(width)
 	for idx, h := range columns {
 		if h.Width == 0 {
@@ -208,41 +307,35 @@ func printImageTree(dockerCLI command.Cli, view treeView) error {
 		nameWidth -= d
 	}
 
-	images := view.images
 	// Try to make the first column as narrow as possible
 	widest := widestFirstColumnValue(columns, images)
 	if nameWidth > widest {
 		nameWidth = widest
 	}
 	columns[0].Width = nameWidth
-
+	return columns
-	// Print columns
-	for i, h := range columns {
-		if i > 0 {
-			_, _ = fmt.Fprint(out, strings.Repeat(" ", columnSpacing))
-		}
-
-		_, _ = fmt.Fprint(out, h.Print(headerColor, strings.ToUpper(h.Title)))
-	}
-
-	_, _ = fmt.Fprintln(out)
-
-	// Print images
-	for _, img := range images {
-		printNames(out, columns, img, topNameColor, untaggedColor)
-		printDetails(out, columns, normalColor, img.Details)
-
-		if len(img.Children) > 0 || view.imageSpacing {
-			_, _ = fmt.Fprintln(out)
-		}
-		printChildren(out, columns, img, normalColor)
-		_, _ = fmt.Fprintln(out)
-	}
-
-	return nil
 }
 
-func printDetails(out *streams.Out, headers []imgColumn, defaultColor aec.ANSI, details imageDetails) {
+func generateLegend(out tui.Output, width uint) string {
+	var legend string
+	legend += out.Sprint(tui.InfoHeader)
+	for idx, chip := range allChips {
+		legend += " " + out.Sprint(chip) + " " + chip.desc
+		if idx < len(allChips)-1 {
+			legend += " |"
+		}
+	}
+	legend += " "
+
+	r := int(width) - tui.Width(legend)
+	if r < 0 {
+		r = 0
+	}
+	legend = strings.Repeat(" ", r) + legend
+	return legend
+}
+
+func printDetails(out tui.Output, headers []imgColumn, defaultColor aec.ANSI, details imageDetails) {
 	for _, h := range headers {
 		if h.DetailsValue == nil {
 			continue
@@ -258,17 +351,18 @@ func printDetails(out *streams.Out, headers []imgColumn, defaultColor aec.ANSI,
 	}
 }
 
-func printChildren(out *streams.Out, headers []imgColumn, img topImage, normalColor aec.ANSI) {
+func printChildren(out tui.Output, headers []imgColumn, img topImage, normalColor aec.ANSI) {
 	for idx, sub := range img.Children {
 		clr := normalColor
 		if !sub.Available {
 			clr = normalColor.With(aec.Faint)
 		}
 
+		text := sub.Platform
 		if idx != len(img.Children)-1 {
-			_, _ = fmt.Fprint(out, headers[0].Print(clr, "├─ "+sub.Platform))
+			_, _ = fmt.Fprint(out, headers[0].Print(clr, "├─ "+text))
 		} else {
-			_, _ = fmt.Fprint(out, headers[0].Print(clr, "└─ "+sub.Platform))
+			_, _ = fmt.Fprint(out, headers[0].Print(clr, "└─ "+text))
 		}
 
 		printDetails(out, headers, clr, sub.Details)
@@ -276,7 +370,7 @@ func printChildren(out *streams.Out, headers []imgColumn, img topImage, normalCo
 	}
 }
 
-func printNames(out *streams.Out, headers []imgColumn, img topImage, color, untaggedColor aec.ANSI) {
+func printNames(out tui.Output, headers []imgColumn, img topImage, color, untaggedColor aec.ANSI) {
 	if len(img.Names) == 0 {
 		_, _ = fmt.Fprint(out, headers[0].Print(untaggedColor, "<untagged>"))
 	}
@@ -294,7 +388,7 @@ func printNames(out *streams.Out, headers []imgColumn, img topImage, color, unta
 		// name will be printed alongside other columns.
 		if nameIdx < len(img.Names)-1 {
 			_, fullWidth := out.GetTtySize()
-			_, _ = fmt.Fprintln(out, color.Apply(truncateRunes(name, int(fullWidth))))
+			_, _ = fmt.Fprintln(out, color.Apply(tui.Ellipsis(name, int(fullWidth))))
 		} else {
 			_, _ = fmt.Fprint(out, headers[0].Print(color, name))
 		}
@@ -318,14 +412,6 @@ type imgColumn struct {
 	Color        *aec.ANSI
 }
 
-func truncateRunes(s string, length int) string {
-	runes := []rune(s)
-	if len(runes) > length {
-		return string(runes[:length-1]) + "…"
-	}
-	return s
-}
-
 func (h imgColumn) Print(clr aec.ANSI, s string) string {
 	switch h.Align {
 	case alignCenter:
@@ -338,10 +424,10 @@ func (h imgColumn) Print(clr aec.ANSI, s string) string {
 }
 
 func (h imgColumn) PrintC(clr aec.ANSI, s string) string {
-	ln := utf8.RuneCountInString(s)
+	ln := tui.Width(s)
 
 	if ln > h.Width {
-		return clr.Apply(truncateRunes(s, h.Width))
+		return clr.Apply(tui.Ellipsis(s, h.Width))
 	}
 
 	fill := h.Width - ln
@@ -353,37 +439,23 @@ func (h imgColumn) PrintC(clr aec.ANSI, s string) string {
 }
 
 func (h imgColumn) PrintL(clr aec.ANSI, s string) string {
-	ln := utf8.RuneCountInString(s)
+	ln := tui.Width(s)
 	if ln > h.Width {
-		return clr.Apply(truncateRunes(s, h.Width))
+		return clr.Apply(tui.Ellipsis(s, h.Width))
 	}
 
 	return clr.Apply(s) + strings.Repeat(" ", h.Width-ln)
 }
 
 func (h imgColumn) PrintR(clr aec.ANSI, s string) string {
-	ln := utf8.RuneCountInString(s)
+	ln := tui.Width(s)
 	if ln > h.Width {
-		return clr.Apply(truncateRunes(s, h.Width))
+		return clr.Apply(tui.Ellipsis(s, h.Width))
 	}
 
 	return strings.Repeat(" ", h.Width-ln) + clr.Apply(s)
 }
 
-type noColor struct{}
-
-func (a noColor) With(_ ...aec.ANSI) aec.ANSI {
-	return a
-}
-
-func (a noColor) Apply(s string) string {
-	return s
-}
-
-func (a noColor) String() string {
-	return ""
-}
-
 // widestFirstColumnValue calculates the width needed to fully display the image names and platforms.
 func widestFirstColumnValue(headers []imgColumn, images []topImage) int {
 	width := len(headers[0].Title)

internal/tui/chip.go

@@ -0,0 +1,9 @@
+package tui
+
+import "strconv"
+
+func Chip(fg, bg int, content string) string {
+	fgAnsi := "\x1b[38;5;" + strconv.Itoa(fg) + "m"
+	bgAnsi := "\x1b[48;5;" + strconv.Itoa(bg) + "m"
+	return fgAnsi + bgAnsi + content + "\x1b[0m"
+}

internal/tui/colors.go

@@ -0,0 +1,30 @@
+package tui
+
+import (
+	"github.com/morikuni/aec"
+)
+
+var (
+	ColorTitle     = aec.NewBuilder(aec.DefaultF, aec.Bold).ANSI
+	ColorPrimary   = aec.NewBuilder(aec.DefaultF, aec.Bold).ANSI
+	ColorSecondary = aec.DefaultF
+	ColorTertiary  = aec.NewBuilder(aec.DefaultF, aec.Faint).ANSI
+	ColorLink      = aec.NewBuilder(aec.LightCyanF, aec.Underline).ANSI
+	ColorWarning   = aec.LightYellowF
+	ColorFlag      = aec.NewBuilder(aec.Bold).ANSI
+	ColorNone      = aec.ANSI(noColor{})
+)
+
+type noColor struct{}
+
+func (a noColor) With(_ ...aec.ANSI) aec.ANSI {
+	return a
+}
+
+func (a noColor) Apply(s string) string {
+	return s
+}
+
+func (a noColor) String() string {
+	return ""
+}

internal/tui/count.go

@@ -0,0 +1,67 @@
+package tui
+
+import (
+	"strings"
+
+	"github.com/mattn/go-runewidth"
+)
+
+func cleanANSI(s string) string {
+	for {
+		start := strings.Index(s, "\x1b")
+		if start == -1 {
+			return s
+		}
+		end := strings.Index(s[start:], "m")
+		if end == -1 {
+			return s
+		}
+		s = s[:start] + s[start+end+1:]
+	}
+}
+
+// Width returns the width of the string, ignoring ANSI escape codes.
+// Not all ANSI escape codes are supported yet.
+func Width(s string) int {
+	return runewidth.StringWidth(cleanANSI(s))
+}
+
+// Ellipsis truncates a string to a given number of runes with an ellipsis at the end.
+// It tries to persist the ANSI escape sequences.
+func Ellipsis(s string, length int) string {
+	out := make([]rune, 0, length)
+	ln := 0
+	inEscape := false
+	tooLong := false
+
+	for _, r := range s {
+		if r == '\x1b' {
+			out = append(out, r)
+			inEscape = true
+			continue
+		}
+		if inEscape {
+			out = append(out, r)
+			if r == 'm' {
+				inEscape = false
+				if tooLong {
+					break
+				}
+			}
+			continue
+		}
+
+		ln += 1
+		if ln == length {
+			tooLong = true
+		}
+		if !tooLong {
+			out = append(out, r)
+		}
+	}
+
+	if tooLong {
+		return string(out) + "…"
+	}
+	return string(out)
+}

internal/tui/note.go

@@ -0,0 +1,36 @@
+package tui
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/morikuni/aec"
+)
+
+var InfoHeader = Str{
+	Plain: " Info -> ",
+	Fancy: aec.Bold.Apply(aec.LightCyanB.Apply(aec.BlackF.Apply("i")) + " " + aec.LightCyanF.Apply("Info → ")),
+}
+
+func (o Output) PrintNote(format string, args ...any) {
+	if o.isTerminal {
+		// TODO: Handle all flags
+		format = strings.ReplaceAll(format, "--platform", ColorFlag.Apply("--platform"))
+	}
+
+	header := o.Sprint(InfoHeader)
+
+	_, _ = fmt.Fprint(o, "\n", header)
+	s := fmt.Sprintf(format, args...)
+	for idx, line := range strings.Split(s, "\n") {
+		if idx > 0 {
+			_, _ = fmt.Fprint(o, strings.Repeat(" ", Width(header)))
+		}
+
+		l := line
+		if o.isTerminal {
+			l = aec.Italic.Apply(l)
+		}
+		_, _ = fmt.Fprintln(o, l)
+	}
+}

internal/tui/output.go

@@ -0,0 +1,59 @@
+package tui
+
+import (
+	"fmt"
+
+	"github.com/docker/cli/cli/streams"
+	"github.com/morikuni/aec"
+)
+
+type Output struct {
+	*streams.Out
+	isTerminal bool
+}
+
+type terminalPrintable interface {
+	String(isTerminal bool) string
+}
+
+func NewOutput(out *streams.Out) Output {
+	return Output{
+		Out:        out,
+		isTerminal: out.IsTerminal(),
+	}
+}
+
+func (o Output) Color(clr aec.ANSI) aec.ANSI {
+	if o.isTerminal {
+		return clr
+	}
+	return ColorNone
+}
+
+func (o Output) Sprint(all ...any) string {
+	var out []any
+	for _, p := range all {
+		if s, ok := p.(terminalPrintable); ok {
+			out = append(out, s.String(o.isTerminal))
+		} else {
+			out = append(out, p)
+		}
+	}
+	return fmt.Sprint(out...)
+}
+
+func (o Output) PrintlnWithColor(clr aec.ANSI, args ...any) {
+	msg := o.Sprint(args...)
+	if o.isTerminal {
+		msg = clr.Apply(msg)
+	}
+	_, _ = fmt.Fprintln(o.Out, msg)
+}
+
+func (o Output) Println(p ...any) {
+	_, _ = fmt.Fprintln(o.Out, o.Sprint(p...))
+}
+
+func (o Output) Print(p ...any) {
+	_, _ = fmt.Print(o.Out, o.Sprint(p...))
+}

internal/tui/str.go

@@ -0,0 +1,16 @@
+package tui
+
+type Str struct {
+	// Fancy is the fancy string representation of the string.
+	Fancy string
+
+	// Plain is the plain string representation of the string.
+	Plain string
+}
+
+func (p Str) String(isTerminal bool) string {
+	if isTerminal {
+		return p.Fancy
+	}
+	return p.Plain
+}