refractor: use internal Intersect function.

pkg/util/tools.go

@@ -82,6 +82,25 @@ func RemoveDuplicate[T comparable](inlist []T) []T {
 	return list
 }
 
+// Intersect returns the intersection between two collections.
+// From https://github.com/samber/lo
+func Intersect[T comparable](list1 []T, list2 []T) []T {
+	result := []T{}
+	seen := map[T]struct{}{}
+
+	for _, elem := range list1 {
+		seen[elem] = struct{}{}
+	}
+
+	for _, elem := range list2 {
+		if _, ok := seen[elem]; ok {
+			result = append(result, elem)
+		}
+	}
+
+	return result
+}
+
 // CopyTo recursivelly copy all files from a source path to a destination path.
 func CopyTo(src *paths.Path, dst *paths.Path) error {
 	files, err := src.ReadDirRecursiveFiltered(nil,