let bundler manage rails from github

Gemfile

@@ -1,11 +1,13 @@
 source "http://rubygems.org"
 
-gem 'arel',  :path => "./vendor/arel"
-gem 'rails', :path => "./vendor/rails"
+gem 'arel', :git => "git://github.com/rails/arel.git"
+gem 'rails', :git => "git://github.com/rails/rails.git"
+
 gem 'rspec-core', :path => "../rspec-core"
 gem 'rspec-expectations', :path => "../rspec-expectations"
 gem 'rspec-mocks', :path => "../rspec-mocks"
 gem 'rspec', :path => "../rspec"
+
 gem 'thor'
 gem 'cucumber'
 gem 'aruba'

Rakefile

@@ -57,45 +57,11 @@ namespace :gem do
   end
 end
 
-namespace :rails do
-  desc "clone the rails repo"
-  task :clone do
-    mkdir 'vendor' unless File.directory?('vendor')
-    install_bundle = false
-    unless File.directory?('vendor/arel')
-      install_bundle = true
-      Dir.chdir('vendor') do
-        sh "git clone git://github.com/rails/arel"
-      end
-    end
-    unless File.directory?('vendor/rails')
-      install_bundle = true
-      Dir.chdir('vendor') do
-        sh "git clone git://github.com/rails/rails"
-      end
-    end
-    sh "bundle install" if install_bundle
-  end
-
-  desc "update the rails repo"
-  task :update => :clone do
-    Dir.chdir('vendor/arel') do
-      sh "git checkout master"
-      sh "git pull"
-    end
-    Dir.chdir('vendor/rails') do
-      sh "git checkout master"
-      sh "git pull"
-    end
-    sh "bundle install"
-  end
-end
-
 namespace :generate do
   desc "generate a fresh app with rspec installed"
-  task :app => ["rails:clone"] do |t|
+  task :app do |t|
     unless File.directory?('./tmp/example_app')
-      sh "bundle exec ./vendor/rails/bin/rails new ./tmp/example_app"
+      sh "bundle exec rails new ./tmp/example_app"
       sh "cp ./templates/Gemfile ./tmp/example_app/" 
     end
   end

templates/Gemfile

@@ -1,12 +1,12 @@
 source 'http://rubygems.org'
 
-gem "arel", :path => "../../vendor/arel"
-gem "rails", :path => "../../vendor/rails"
+gem 'arel', :git => "git://github.com/rails/arel.git"
+gem 'rails', :git => "git://github.com/rails/rails.git"
 
 gem 'sqlite3-ruby', :require => 'sqlite3'
 
-gem "rspec", :path => "../../../rspec"
-gem "rspec-core", :path => "../../../rspec-core"
+gem "rspec-rails",        :path => "../../../rspec-rails"
+gem "rspec",              :path => "../../../rspec"
+gem "rspec-core",         :path => "../../../rspec-core"
 gem "rspec-expectations", :path => "../../../rspec-expectations"
-gem "rspec-mocks", :path => "../../../rspec-mocks"
-gem "rspec-rails", :path => "../../../rspec-rails"
+gem "rspec-mocks",        :path => "../../../rspec-mocks"

templates/run_specs.rb

@@ -1,4 +1,4 @@
-run('bundle exec ../../../rspec-core/bin/rspec spec -cfdoc')
+run('bundle exec rspec spec -cfdoc')
 run('rake spec')
 run('rake spec:requests')
 run('rake spec:models')