[Rubocop] Fixing "Method too long" offenses (#17)

lib/pod/command/plugins_helper.rb

@@ -16,11 +16,7 @@ def self.download_json
         UI.puts 'Downloading Plugins list...'
         response = REST.get(PLUGINS_URL)
         if response.ok?
-          begin
-            JSON.parse(response.body)
-          rescue JSON::ParserError => e
-            raise Informative, "Invalid plugins list from cocoapods.org: #{e}"
-          end
+          parse_json(response.body)
         else
           raise Informative, 'Could not download plugins list ' \
                              "from cocoapods.org: #{response.inspect}"
@@ -79,20 +75,14 @@ def self.gem_installed?(gem_name)
       # Display information about a plugin
       #
       # @param [Hash] plugin
-      #        The hash describing the plugin's name,
-      #        description, gem, url and author
+      #        The hash describing the plugin
       #
       # @param [Bool] verbose
       #        If true, will also print the author of the plugins.
       #        Defaults to false.
       #
       def self.print_plugin(plugin, verbose = false)
-        plugin_name = "-> #{plugin['name']}"
-        if gem_installed?(plugin['gem'])
-          plugin_colored_name = plugin_name.green
-        else
-          plugin_colored_name = plugin_name.yellow
-        end
+        plugin_colored_name = plugin_title(plugin)
 
         UI.title(plugin_colored_name, '', 1) do
           UI.puts_indented plugin['description']
@@ -101,6 +91,38 @@ def self.print_plugin(plugin, verbose = false)
           UI.labeled('Author', plugin['author']) if verbose
         end
       end
+
+      #----------------#
+
+      private
+
+      # Parse the given JSON data, handling parsing errors if any
+      #
+      # @param [String] json_str
+      #        The string representation of the JSON to parse
+      #
+      def self.parse_json(json_str)
+        JSON.parse(json_str)
+        rescue JSON::ParserError => e
+          raise Informative, "Invalid plugins list from cocoapods.org: #{e}"
+      end
+
+      # Format the title line to print the plugin info with print_plugin
+      # coloring it according to whether the plugin is installed or not
+      #
+      # @param [Hash] plugin
+      #               The hash describing the plugin
+      #
+      # @return [String] The formatted and colored title
+      #
+      def self.plugin_title(plugin)
+        plugin_name = "-> #{plugin['name']}"
+        if gem_installed?(plugin['gem'])
+          plugin_name.green
+        else
+          plugin_name.yellow
+        end
+      end
     end
   end
 end