feat: add database.s3 support

internal/tool/human.go

@@ -22,3 +22,29 @@ func HumanDuration(nano int64) string {
 
 	return fmt.Sprintf("%6.2f%s", duration, unit)
 }
+
+func HumanSize(size int64) string {
+	const (
+		_  = iota
+		KB = 1 << (10 * iota) // 1 KB = 1024 bytes
+		MB                    // 1 MB = 1024 KB
+		GB                    // 1 GB = 1024 MB
+		TB                    // 1 TB = 1024 GB
+		PB                    // 1 PB = 1024 TB
+	)
+
+	switch {
+	case size >= PB:
+		return fmt.Sprintf("%.2f PB", float64(size)/PB)
+	case size >= TB:
+		return fmt.Sprintf("%.2f TB", float64(size)/TB)
+	case size >= GB:
+		return fmt.Sprintf("%.2f GB", float64(size)/GB)
+	case size >= MB:
+		return fmt.Sprintf("%.2f MB", float64(size)/MB)
+	case size >= KB:
+		return fmt.Sprintf("%.2f KB", float64(size)/KB)
+	default:
+		return fmt.Sprintf("%d bytes", size)
+	}
+}