Humanused numbers.

human/numbers.go

@@ -0,0 +1,26 @@
+package human
+
+import (
+	"fmt"
+	"math"
+)
+
+// UInt formats an unsigned 64-bit number into bytes, kilobytes etc. strings, optionally with SI numbers.
+func UInt(n uint64, si bool) string {
+	num := float64(n)
+	var unit float64 = 1024
+	if si {
+		unit = 1000
+	}
+	if num < unit {
+		return fmt.Sprintf("%dB", int(num))
+	}
+	exp := int(math.Log(num) / math.Log(unit))
+	pre := "kMGTPE"
+	pre = pre[exp-1 : exp]
+	if !si {
+		pre = pre + "i"
+	}
+	r := n / uint64(math.Pow(unit, float64(exp)))
+	return fmt.Sprintf("%d %sB", r, pre)
+}