lib/datasets/iris.rb in red-datasets-0.1.4 vs lib/datasets/iris.rb in red-datasets-0.1.5

@@ -13,10 +13,11 @@
     def initialize
       super()
       @metadata.id = "iris"
       @metadata.name = "Iris"
       @metadata.url = "https://archive.ics.uci.edu/ml/datasets/Iris"
+      @metadata.licenses = ["CC-BY-4.0"]
       @metadata.description = lambda do
         read_names
       end
     end
 
@@ -33,24 +34,20 @@
     end
 
     private
     def open_data
       data_path = cache_dir_path + "iris.csv"
-      unless data_path.exist?
-        data_url = "https://archive.ics.uci.edu/ml/machine-learning-databases/iris/iris.data"
-        download(data_path, data_url)
-      end
+      data_url = "https://archive.ics.uci.edu/ml/machine-learning-databases/iris/iris.data"
+      download(data_path, data_url)
       CSV.open(data_path, converters: [:numeric]) do |csv|
         yield(csv)
       end
     end
 
     def read_names
       names_path = cache_dir_path + "iris.names"
-      unless names_path.exist?
-        names_url = "https://archive.ics.uci.edu/ml/machine-learning-databases/iris/iris.names"
-        download(names_path, names_url)
-      end
+      names_url = "https://archive.ics.uci.edu/ml/machine-learning-databases/iris/iris.names"
+      download(names_path, names_url)
       names_path.read
     end
   end
 end