Wrap an error message. Return 0 size on error.

pkg/utils/filesize.go

@@ -6,6 +6,8 @@ import (
 	"path/filepath"
 	"strconv"
 	"strings"
+
+	"github.com/pkg/errors"
 )
 
 var sizeSuffixes = [...]string{"B", "KiB", "MiB", "GiB", "TiB"}
@@ -30,7 +32,7 @@ func ConvertFileSize(size int64) (float64, string, string) {
 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
+			return errors.Wrapf(err, "failed to compute %s directory size", path)
 		}
 
 		dirSz += info.Size()
@@ -39,7 +41,7 @@ func DirectorySize(path string) (dirSz int64, err error) {
 	})
 
 	if err != nil {
-		return dirSz, err
+		return 0, err
 	}
 
 	return dirSz, nil