add ignorable paths

features/dynamic_pages.feature

@@ -6,6 +6,10 @@ Feature: Dynamic Pages
     Then "fake.html" should exist and include "I am real"
     Then "fake/one.html" should exist and include "I am real: one"
     Then "fake/two.html" should exist and include "I am real: two"
+    Then "target_ignore.html" should exist and include "Ignore me"
+    Then "should_be_ignored.html" should not exist
+    Then "should_be_ignored2.html" should not exist
+    Then "should_be_ignored3.html" should not exist
     And cleanup built test app
     
   Scenario: Preview basic proxy

features/step_definitions/page_layout_steps.rb

@@ -1,12 +1,10 @@
 Given /^page "([^\"]*)" has layout "([^\"]*)"$/ do |url, layout|
   @server ||= Middleman.server
-  @server.set :root, File.join(File.dirname(File.dirname(File.dirname(__FILE__))), "fixtures", "test-app")
   @server.page(url, :layout => layout.to_sym)
 end
 
 Given /^"([^\"]*)" with_layout block has layout "([^\"]*)"$/ do |url, layout|
   @server ||= Middleman.server
-  @server.set :root, File.join(File.dirname(File.dirname(File.dirname(__FILE__))), "fixtures", "test-app")
   @server.with_layout(layout.to_sym) do
     page(url)
   end

fixtures/test-app/config.rb

@@ -1,5 +1,9 @@
 page "/fake.html", :proxy => "/real.html", :layout => false
 
+ignore "/should_be_ignored.html"
+page "/should_be_ignored2.html", :ignore => true
+page "/target_ignore.html", :proxy => "/should_be_ignored3.html", :ignore => true
+
 %w(one two).each do |num|
   page "/fake/#{num}.html", :proxy => "/real/index.html" do
     @num = num

fixtures/test-app/source/should_be_ignored.html

@@ -0,0 +1 @@
+<h1>Ignore me!</h1>

fixtures/test-app/source/should_be_ignored2.html

@@ -0,0 +1 @@
+<h1>Ignore me! 2</h1>

fixtures/test-app/source/should_be_ignored3.html

@@ -0,0 +1 @@
+<h1>Ignore me! 3</h1>

lib/middleman/builder.rb

@@ -5,7 +5,7 @@ require 'rack/test'
 SHARED_SERVER = Middleman.server
 SHARED_SERVER.set :environment, :build
 
-module Middleman  
+module Middleman
   module ThorActions
     def tilt_template(source, *args, &block)
       config = args.last.is_a?(Hash) ? args.pop : {}
@@ -13,14 +13,13 @@ module Middleman
       
       # source  = File.expand_path(find_in_source_paths(source.to_s))
       context = instance_eval('binding')
-
-      @@rack_test ||= ::Rack::Test::Session.new(::Rack::MockSession.new(SHARED_SERVER))
+      
+      request_path = destination.sub(/^#{SHARED_SERVER.build_dir}/, "")
+      return if SHARED_SERVER.excluded_paths.include?(request_path)
       
       create_file destination, nil, config do
-        # The default render just requests the page over Rack and writes the response
-        request_path = destination.sub(/^#{SHARED_SERVER.build_dir}/, "")
-        @@rack_test.get(request_path.gsub(/\s/, "%20"))
-        @@rack_test.last_response.body
+        Middleman::Builder.shared_rack.get(request_path.gsub(/\s/, "%20"))
+        Middleman::Builder.shared_rack.last_response.body
       end
     end
   end
@@ -29,6 +28,15 @@ module Middleman
     include Thor::Actions
     include Middleman::ThorActions
     
+    def self.shared_rack
+      @shared_rack ||= begin  
+        mock = ::Rack::MockSession.new(SHARED_SERVER)
+        sess = ::Rack::Test::Session.new(mock)
+        sess.get("/")
+        sess
+      end
+    end
+    
     class_option :relative, :type => :boolean, :aliases => "-r", :default => false, :desc => 'Override the config.rb file and force relative urls'
     
     def initialize(*args)
@@ -46,6 +54,8 @@ module Middleman
     end
     
     def build_all_files
+      self.class.shared_rack
+      
       action Directory.new(self, SHARED_SERVER.views, SHARED_SERVER.build_dir, { :force => true })
       
       SHARED_SERVER.proxied_paths.each do |url, proxy|

lib/middleman/core_extensions/routing.rb

@@ -4,6 +4,7 @@ module Middleman::CoreExtensions::Routing
       app.extend ClassMethods
       
       app.set :proxied_paths, {}
+      app.set :excluded_paths, []
       
       # Normalize the path and add index if we're looking at a directory
       app.before_processing do
@@ -47,6 +48,13 @@ module Middleman::CoreExtensions::Routing
       paths
     end
   
+    # Keep a path from building
+    def ignore(path)
+      settings.excluded_paths << paths_for_url(path)
+      settings.excluded_paths.flatten!
+      settings.excluded_paths.uniq!
+    end
+    
     # The page method allows the layout to be set on a specific path
     # page "/about.html", :layout => false
     # page "/", :layout => :homepage_layout
@@ -56,8 +64,15 @@ module Middleman::CoreExtensions::Routing
       
       if options.has_key?(:proxy)
         settings.proxied_paths[url] = options[:proxy]
+        if options.has_key?(:ignore) && options[:ignore]
+          settings.ignore(options[:proxy])
+        end
+      else
+        if options.has_key?(:ignore) && options[:ignore]
+          settings.ignore(url)
+        end
       end
-    
+      
       paths_for_url(url).each do |p|
         get(p) do
           if settings.proxied_paths.has_key?(url)