lib/fusuma/device.rb in fusuma-0.7.2 vs lib/fusuma/device.rb in fusuma-0.8.0

@@ -3,20 +3,35 @@
   class Device
     class << self
       attr_writer :names
 
       def names
-        return @names unless @names.nil?
+        return @names unless no_name?
         device_names = fetch_device_names
         MultiLogger.debug(device_names: device_names)
         raise 'Touchpad is not found' if device_names.empty?
         @names = device_names
       rescue RuntimeError => ex
         MultiLogger.error(ex.message)
         exit 1
       end
 
+      # @params [String]
+      def given_device=(name)
+        return if name.nil?
+        if names.include? name
+          self.names = [name]
+          return
+        end
+        MultiLogger.error("Device #{name} is not found")
+        exit 1
+      end
+
       private
+
+      def no_name?
+        @names.nil? || @names.empty?
+      end
 
       # @return [Array]
       def fetch_device_names
         [].tap do |devices|
           current_device = nil