DirectorySize() func to get size of all files inside.

pkg/utils/filesize.go

@@ -2,6 +2,8 @@ package utils
 
 import (
 	"fmt"
+	"io/fs"
+	"path/filepath"
 	"strconv"
 	"strings"
 )
@@ -24,3 +26,21 @@ func ConvertFileSize(size int64) (float64, string, string) {
 
 	return fSize, sizeSuffixes[idx], fmt.Sprint(fSizeStr, sizeSuffixes[idx])
 }
+
+func DirectorySize(path string) (dirSz int64, err error) {
+	err = filepath.Walk(path, func(_ string, info fs.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+
+		dirSz += info.Size()
+
+		return nil
+	})
+
+	if err != nil {
+		return dirSz, err
+	}
+
+	return dirSz, nil
+}