Extract method

Library/Homebrew/formulary.rb

@@ -59,10 +59,21 @@ class Formulary
         raise FormulaUnavailableError.new(name)
       end
 
-      unless have_klass
+      load_file unless have_klass
+
+      klass = Formulary.get_formula_class(class_name)
+      if klass == Formula || !(klass < Formula)
+        raise FormulaUnavailableError.new(name)
+      end
+      klass
+    end
+
+    private
+
+    def load_file
       STDERR.puts "#{$0} (#{self.class.name}): loading #{path}" if ARGV.debug?
       begin
-          require path
+        require(path)
       rescue NoMethodError
         # This is a programming error in an existing formula, and should not
         # have a "no such formula" message.
@@ -72,13 +83,6 @@ class Formulary
         raise FormulaUnavailableError.new(name)
       end
     end
-
-      klass = Formulary.get_formula_class(class_name)
-      if klass == Formula || !(klass < Formula)
-        raise FormulaUnavailableError.new(name)
-      end
-      klass
-    end
   end
 
   # Loads formulae from bottles.