input Getenvs to FlagXYZ

src/device/input/wrap/buffered.go

@@ -9,6 +9,10 @@ import (
 	"time"
 )
 
+var (
+	FlagBufferedStickyDuration = os.Getenv("WRAP_BUFFERED_STICKY_DURATION")
+)
+
 type Buffered struct {
 	ctx                context.Context
 	can                context.CancelFunc
@@ -22,7 +26,7 @@ type Buffered struct {
 func NewBuffered(ctx context.Context, input Wrap) *Buffered {
 	ctx, can := context.WithCancel(ctx)
 	expirationInterval := time.Millisecond * 125
-	if d, err := time.ParseDuration(os.Getenv("WRAP_BUFFERED_STICKY_DURATION")); err == nil {
+	if d, err := time.ParseDuration(FlagBufferedStickyDuration); err == nil {
 		expirationInterval = d
 	}
 	result := &Buffered{