utils: add common function to match the directory layer

go/tasks/subtasks/list_volume.go

@@ -22,8 +22,6 @@ func NewListVolumeSubTask(cfg *configs.Config) *ListVolumeSubTask {
 func (task *ListVolumeSubTask) Execute() error {
 	utils.HighlightPrint(fmt.Sprintf("Volume path: %s", task.Config.VolumePath))
 
-	volumeLength := lenPath(task.Config.VolumePath)
-
 	volumeList := []string{" "}
 	filepath.WalkDir(task.Config.VolumePath, func(path string, d fs.DirEntry, err error) error {
 		if err != nil {
@@ -35,8 +33,7 @@ func (task *ListVolumeSubTask) Execute() error {
 		}
 
 		if d.IsDir() {
-			dirLength := lenPath(path)
+			if utils.MatchPathLength(task.Config.VolumePath, path, 1) {
-			if volumeLength+1 == dirLength {
 				volumeList = append(volumeList, d.Name())
 			}
 		}
@@ -52,7 +49,3 @@ func (task *ListVolumeSubTask) Execute() error {
 func (task *ListVolumeSubTask) String() string {
 	return "List Volumes"
 }
-
-func lenPath(path string) int {
-	return len(strings.Split(path, string(filepath.Separator)))
-}

go/utils/path.go

@@ -0,0 +1,18 @@
+package utils
+
+import (
+	"path/filepath"
+	"strings"
+)
+
+// MatchPathLength matches the length of target path separated by path separator
+// to the length of base path separated by path separator plus offset
+func MatchPathLength(basePath, targetPath string, offset int) bool {
+	basePathLength := len(strings.Split(basePath, string(filepath.Separator)))
+	targetPathLength := len(strings.Split(targetPath, string(filepath.Separator)))
+	if basePathLength+offset == targetPathLength {
+		return true
+	}
+
+	return false
+}