if info.IsDir() {
			if !recursive && dir != path {
				return filepath.SkipDir
			}
			return nil
		}

		if !isValidFile(path) {
			fmt.Fprintf(cmd.ErrOrStderr(), "Skipping file %v, recognized file extensions are: %v\n", path, fileExtensions)
			return nil
		}

		r, err := os.Open(path)
		if err != nil {
			return err
		}
		runtime.SetFinalizer(r, func(x *os.File) {
			err = x.Close()