Open up methods to allow easier programmatic usage

lib/gratan/client.rb

@@ -56,15 +56,22 @@ def chunk_by_user(exported)
   def apply(file, options = {})
     options = @options.merge(options)
 
+    apply_context(
+      load_file(file, options),
+      options)
+  end
+
+  def apply_context(expected, options = {})
+    options = @options.merge(options)
+
     in_progress do
-      walk(file, options)
+      walk(expected, options)
     end
   end
 
   private
 
-  def walk(file, options)
-    expected = load_file(file, options)
+  def walk(expected, options)
     actual = Gratan::Exporter.export(@driver, options.merge(:with_identifier => true))
 
     expected.each do |user_host, expected_attrs|

lib/gratan/dsl/context.rb

@@ -17,8 +17,6 @@ def initialize(path, options = {}, &block)
     instance_eval(&block)
   end
 
-  private
-
   def require(file)
     grantfile = (file =~ %r|\A/|) ? file : File.expand_path(File.join(File.dirname(@path), file))