grafana/pkg/services/searchV2/utils.go

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package searchV2
import (
"fmt"
"math"
"os"
"path/filepath"
)
func dirSize(path string) (int64, error) {
var size int64
err := filepath.Walk(path, func(_ string, info os.FileInfo, err error) error {
if err != nil {
return err
}
if !info.IsDir() {
size += info.Size()
}
return err
})
return size, err
}
func logN(n, b float64) float64 {
return math.Log(n) / math.Log(b)
}
// Slightly modified function from https://github.com/dustin/go-humanize (MIT).
func formatBytes(numBytes uint64) string {
base := 1024.0
sizes := []string{"B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB"}
if numBytes < 10 {
return fmt.Sprintf("%d B", numBytes)
}
e := math.Floor(logN(float64(numBytes), base))
suffix := sizes[int(e)]
val := math.Floor(float64(numBytes)/math.Pow(base, e)*10+0.5) / 10
return fmt.Sprintf("%.1f %s", val, suffix)
}