try to fix runcoderun

Rakefile

@@ -52,10 +52,11 @@ task :spec => :check_dependencies
 
 task :default => :spec
 
-require 'rake/rdoctask'
-require 'sdoc'
+unless ENV["RUN_CODE_RUN"]
+  require 'rake/rdoctask'
+  require 'sdoc'
 
-Rake::RDocTask.new do |rdoc|
+  Rake::RDocTask.new do |rdoc|
     if File.exist?('VERSION')
       version = File.read('VERSION')
     else
@@ -70,10 +71,10 @@ Rake::RDocTask.new do |rdoc|
     rdoc.rdoc_files.include('lib/**/*.rb')
     rdoc.rdoc_files.exclude('lib/middleman/features/sprockets+ruby19.rb')
     rdoc.rdoc_files.exclude('lib/middleman/templater+dynamic_renderer.rb')
-end
+  end
 
-desc "Build and publish documentation using GitHub Pages."
-task :pages do
+  desc "Build and publish documentation using GitHub Pages."
+  task :pages do
     if !`git status`.include?('nothing to commit')
       abort "dirty index - not publishing!"
     end
@@ -83,4 +84,5 @@ task :pages do
     `ls -1 | grep -v rdoc | xargs rm -rf; mv rdoc/* .; rm -rf rdoc`
     `git commit -a -m "update docs"; git push origin gh-pages`
     `git checkout master`
+  end
 end