Function FormatSize

internal/text/text.go:156–174

FormatSize formats a byte count using binary units (B, KB, MB, GB, TB, PB). Values below a kilobyte are shown as whole bytes; larger values are shown with one decimal place of precision.

(n int64)

// Values below a kilobyte are shown as whole bytes; larger values are shown with
// one decimal place of precision.
func FormatSize(n int64) string {
	const unit = 1024
	if n < unit {
		return fmt.Sprintf("%d B", n)
	}

	units := []string{"KB", "MB", "GB", "TB", "PB"}

	// Stop at the largest known unit so an out-of-range index can never occur,
	// even for byte counts beyond a petabyte.
	div, exp := int64(unit), 0
	for v := n / unit; v >= unit && exp < len(units)-1; v /= unit {
		div *= unit
		exp++
	}

	value := float64(n) / float64(div)
	return fmt.Sprintf("%.1f %s", value, units[exp])
}