Storage: Add basic file upload management (#50638)

pkg/util/strings.go

@@ -117,3 +117,17 @@ func Capitalize(s string) string {
 	r[0] = unicode.ToUpper(r[0])
 	return string(r)
 }
+
+func ByteCountSI(b int64) string {
+	const unit = 1000
+	if b < unit {
+		return fmt.Sprintf("%d B", b)
+	}
+	div, exp := int64(unit), 0
+	for n := b / unit; n >= unit; n /= unit {
+		div *= unit
+		exp++
+	}
+	return fmt.Sprintf("%.1f %cB",
+		float64(b)/float64(div), "kMGTPE"[exp])
+}