[Rakefile] Add task to run regression tests

Gemfile

@@ -37,6 +37,7 @@ group :development do
   gem 'diffy'
   gem 'clintegracon'
   gem 'rubocop'
+  cp_gem 'cocoapods-regression', 'cocoapods-regression'
 end
 
 group :debugging do

Gemfile.lock

@@ -47,6 +47,15 @@ GIT
     cocoapods-plugins (0.4.2)
       nap
 
+GIT
+  remote: https://github.com/CocoaPods/cocoapods-regression.git
+  revision: a8408d39a1450dab526d1a3a2616276408594208
+  branch: master
+  specs:
+    cocoapods-regression (0.1.0)
+      cocoapods (~> 0.38.2)
+      xcode-install (~> 0.9.3)
+
 GIT
   remote: https://github.com/CocoaPods/cocoapods-stats.git
   revision: ff4a97cfdf8fbe49c6dd33b595c8486749e631b9
@@ -112,10 +121,19 @@ GEM
     colored (1.2)
     crack (0.4.2)
       safe_yaml (~> 1.0.0)
+    credentials_manager (0.7.4)
+      colored
+      highline (>= 1.7.1)
+      security
     diffy (3.0.7)
     escape (0.0.4)
+    faraday (0.9.1)
+      multipart-post (>= 1.2, < 3)
+    faraday_middleware (0.10.0)
+      faraday (>= 0.7.4, < 0.10)
     ffi (1.9.6)
     fuzzy_match (2.0.4)
+    highline (1.7.3)
     i18n (0.7.0)
     inch (0.5.10)
       pry
@@ -137,11 +155,14 @@ GEM
       metaclass (~> 0.0.1)
     mocha-on-bacon (0.2.2)
       mocha (>= 0.13.0)
+    multi_xml (0.5.5)
+    multipart-post (2.0.0)
     nap (0.8.0)
     netrc (0.7.8)
     notify (0.5.2)
     parser (2.2.0.3)
       ast (>= 1.1, < 3.0)
+    plist (3.1.0)
     powerpack (0.1.0)
     prettybacon (0.0.2)
       bacon (~> 1.2)
@@ -165,7 +186,14 @@ GEM
     ruby-prof (0.15.2)
     ruby-progressbar (1.7.1)
     safe_yaml (1.0.4)
+    security (0.1.3)
     slop (3.6.0)
+    spaceship (0.3.4)
+      credentials_manager (>= 0.5.0)
+      faraday (~> 0.9)
+      faraday_middleware (~> 0.9)
+      multi_xml (~> 0.5)
+      plist (~> 3.1)
     sparkr (0.4.1)
     term-ansicolor (1.3.0)
       tins (~> 1.0)
@@ -176,6 +204,9 @@ GEM
     webmock (1.20.4)
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
+    xcode-install (0.9.3)
+      claide (~> 0.9.1)
+      spaceship (~> 0.3.4)
     yard (0.8.7.6)
 
 PLATFORMS
@@ -192,6 +223,7 @@ DEPENDENCIES
   cocoapods-dependencies
   cocoapods-downloader!
   cocoapods-plugins!
+  cocoapods-regression!
   cocoapods-stats!
   cocoapods-trunk!
   cocoapods-try!

Rakefile

@@ -120,6 +120,14 @@ begin
       sh 'bundle exec bacon spec/integration.rb'
     end
 
+    desc 'Run the regression suite'
+    task :regression do
+      require 'cocoapods-regression'
+      CocoaPods::Regression.apps.each do |app|
+        CocoaPods::Regression.test!(app, 'bin/pod')
+      end
+    end
+
     # Default task
     #--------------------------------------#
     #
@@ -139,6 +147,11 @@ begin
       title 'Running examples'
       Rake::Task['examples:build'].invoke
 
+      if true || ENV['TRAVIS_PULL_REQUEST'] == 'false'
+        title 'Running regression tests'
+        Rake::Task['spec:regression'].invoke
+      end
+
       title 'Running RuboCop'
       Rake::Task['rubocop'].invoke