Add missing godoc comments to cmd/display package

cmd/display/colors.go

@@ -27,15 +27,23 @@ var (
 		return s
 	}
 
+	// DoneColor is the color function used to render the completion indicator.
 	DoneColor    colorFunc = aec.BlueF.Apply
+	// TimerColor is the color function used to render elapsed time.
 	TimerColor   colorFunc = aec.BlueF.Apply
+	// CountColor is the color function used to render counts.
 	CountColor   colorFunc = aec.YellowF.Apply
+	// WarningColor is the color function used to render warning messages.
 	WarningColor colorFunc = aec.YellowF.With(aec.Bold).Apply
+	// SuccessColor is the color function used to render success messages.
 	SuccessColor colorFunc = aec.GreenF.Apply
+	// ErrorColor is the color function used to render error messages.
 	ErrorColor   colorFunc = aec.RedF.With(aec.Bold).Apply
+	// PrefixColor is the color function used to render service name prefixes.
 	PrefixColor  colorFunc = aec.CyanF.Apply
 )
 
+// NoColor disables all terminal color output by replacing color functions with pass-through variants.
 func NoColor() {
 	DoneColor = nocolor
 	TimerColor = nocolor

cmd/display/dryrun.go

@@ -16,6 +16,7 @@
 
 package display
 
+// DRYRUN_PREFIX is the prefix prepended to output lines when running in dry-run mode.
 const (
 	DRYRUN_PREFIX = " DRY-RUN MODE - "
 )

cmd/display/json.go

@@ -25,6 +25,7 @@ import (
 	"github.com/docker/compose/v5/pkg/api"
 )
 
+// JSON returns an EventProcessor that serializes events as JSON lines to the given writer.
 func JSON(out io.Writer) api.EventProcessor {
 	return &jsonWriter{
 		out: out,

cmd/display/plain.go

@@ -24,6 +24,7 @@ import (
 	"github.com/docker/compose/v5/pkg/api"
 )
 
+// Plain returns an EventProcessor that writes events as plain text lines to the given writer.
 func Plain(out io.Writer) api.EventProcessor {
 	return &plainWriter{
 		out: out,

cmd/display/quiet.go

@@ -22,6 +22,7 @@ import (
 	"github.com/docker/compose/v5/pkg/api"
 )
 
+// Quiet returns an EventProcessor that silently discards all events.
 func Quiet() api.EventProcessor {
 	return &quiet{}
 }

cmd/display/spinner.go

@@ -21,6 +21,7 @@ import (
 	"time"
 )
 
+// Spinner renders an animated terminal spinner to indicate ongoing progress.
 type Spinner struct {
 	time  time.Time
 	index int
@@ -29,6 +30,7 @@ type Spinner struct {
 	done  string
 }
 
+// NewSpinner creates and returns a new Spinner instance with platform-appropriate characters.
 func NewSpinner() *Spinner {
 	chars := []string{
 		"⠋", "⠙", "⠹", "⠸", "⠼", "⠴", "⠦", "⠧", "⠇", "⠏",
@@ -61,10 +63,12 @@ func (s *Spinner) String() string {
 	return s.chars[s.index]
 }
 
+// Stop marks the spinner as done, causing it to display the completion character.
 func (s *Spinner) Stop() {
 	s.stop = true
 }
 
+// Restart resumes the spinner animation after it has been stopped.
 func (s *Spinner) Restart() {
 	s.stop = false
 }