Page: pipe through Renderer instead of using Convertible

lib/jekyll/convertible.rb

@@ -97,13 +97,7 @@ module Jekyll
     # Returns the String extension for the output file.
     #   e.g. ".html" for an HTML output file.
     def output_ext
-      if converters.all? { |c| c.is_a?(Jekyll::Converters::Identity) }
-        ext
-      else
-        converters.map do |c|
-          c.output_ext(ext) unless c.is_a?(Jekyll::Converters::Identity)
-        end.compact.last
-      end
+      Jekyll::Renderer.new(site, self).output_ext
     end
 
     # Determine which converter to use based on this convertible's

lib/jekyll/page.rb

@@ -7,6 +7,8 @@ module Jekyll
     attr_accessor :name, :ext, :basename
     attr_accessor :data, :content, :output
 
+    alias_method :extname, :ext
+
     # Attributes for Liquid templates
     ATTRIBUTES_FOR_LIQUID = %w(
       content
@@ -160,5 +162,9 @@ module Jekyll
     def index?
       basename == 'index'
     end
+
+    def trigger_hooks(hook_name, *args)
+      Jekyll::Hooks.trigger :pages, hook_name, self, *args
+    end
   end
 end

lib/jekyll/renderer.rb

@@ -38,7 +38,7 @@ module Jekyll
 
       payload["page"] = document.to_liquid
 
-      if document.collection.label == 'posts' && document.is_a?(Document)
+      if document.is_a?(Document) && document.collection.label == 'posts'
         payload['site']['related_posts'] = document.related_posts
       end
 

lib/jekyll/site.rb

@@ -176,7 +176,8 @@ module Jekyll
 
       pages.flatten.each do |page|
         if regenerator.regenerate?(page)
-          page.render(layouts, payload)
+          page.output = Jekyll::Renderer.new(self, page, payload).run
+          page.trigger_hooks(:post_render)
         end
       end