lib/down.rb in down-3.2.0 vs lib/down.rb in down-4.0.0

@@ -1,4 +1,31 @@
 # frozen-string-literal: true
 
 require "down/version"
-require "down/net_http" unless Down.respond_to?(:download)
+
+module Down
+  module_function
+
+  def download(*args, &block)
+    backend.download(*args, &block)
+  end
+
+  def open(*args, &block)
+    backend.open(*args, &block)
+  end
+
+  def backend(value = nil)
+    if value.is_a?(Symbol)
+      require "down/#{value}"
+      @backend = Down.const_get(value.to_s.split("_").map(&:capitalize).join)
+    elsif value
+      @backend = value
+    else
+      backend :net_http if @backend.nil?
+      @backend
+    end
+  end
+
+  def backend=(value)
+    @backend = value
+  end
+end