[Installer] Add support for default plugins

Gemfile

@@ -18,6 +18,7 @@ group :development do
   cp_gem 'cocoapods-core',       'Core'
   cp_gem 'cocoapods-downloader', 'cocoapods-downloader'
   cp_gem 'cocoapods-plugins',    'cocoapods-plugins'
+  cp_gem 'cocoapods-stats',      'cocoapods-stats'
   cp_gem 'cocoapods-trunk',      'cocoapods-trunk'
   cp_gem 'cocoapods-try',        'cocoapods-try'
   cp_gem 'molinillo',            'Molinillo'

Gemfile.lock

@@ -47,6 +47,14 @@ GIT
     cocoapods-plugins (0.4.2)
       nap
 
+GIT
+  remote: https://github.com/CocoaPods/cocoapods-stats.git
+  revision: 1d1d46e8066398ff630f45a0f7f66444bcb05c39
+  branch: master
+  specs:
+    cocoapods-stats (0.5.0)
+      nap (~> 0.8)
+
 GIT
   remote: https://github.com/CocoaPods/cocoapods-trunk.git
   revision: dbe2fc2e569dc66d652ec85e276294d02e34c3b6
@@ -72,6 +80,7 @@ PATH
       cocoapods-core (= 0.38.0.beta.1)
       cocoapods-downloader (~> 0.9.1)
       cocoapods-plugins (~> 0.4.2)
+      cocoapods-stats (~> 0.5.0)
       cocoapods-trunk (~> 0.6.1)
       cocoapods-try (~> 0.4.5)
       colored (~> 1.2)
@@ -183,6 +192,7 @@ DEPENDENCIES
   cocoapods-dependencies
   cocoapods-downloader!
   cocoapods-plugins!
+  cocoapods-stats!
   cocoapods-trunk!
   cocoapods-try!
   diffy

cocoapods.gemspec

@@ -32,6 +32,7 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency 'xcodeproj',            '~> 0.25.0'
   s.add_runtime_dependency 'cocoapods-downloader', '~> 0.9.1'
   s.add_runtime_dependency 'cocoapods-plugins',    '~> 0.4.2'
+  s.add_runtime_dependency 'cocoapods-stats',      '~> 0.5.0'
   s.add_runtime_dependency 'cocoapods-try',        '~> 0.4.5'
   s.add_runtime_dependency 'cocoapods-trunk',      '~> 0.6.1'
   s.add_runtime_dependency 'molinillo',            '~> 0.2.3'

lib/cocoapods/installer.rb

@@ -418,7 +418,7 @@ module Pod
     #
     def run_plugins_pre_install_hooks
       context = PreInstallHooksContext.generate(sandbox, podfile, lockfile)
-      HooksManager.run(:pre_install, context, podfile.plugins)
+      HooksManager.run(:pre_install, context, plugins)
     end
 
     # Performs any post-installation actions
@@ -434,7 +434,7 @@ module Pod
     #
     def run_plugins_post_install_hooks
       context = PostInstallHooksContext.generate(sandbox, aggregate_targets)
-      HooksManager.run(:post_install, context, podfile.plugins)
+      HooksManager.run(:post_install, context, plugins)
     end
 
     # Ensures that all plugins specified in the {#podfile} are loaded.
@@ -453,6 +453,17 @@ module Pod
       end
     end
 
+    DEFAULT_PLUGINS = { 'cocoapods-stats' => {} }
+
+    # Returns the plugins that should be run, as indicated by the default
+    # plugins and the podfile's plugins
+    #
+    # @return [Hash<String, Hash>] The plugins to be used
+    #
+    def plugins
+      DEFAULT_PLUGINS.merge(podfile.plugins)
+    end
+
     # Prints a warning for any pods that are deprecated
     #
     # @return [void]

spec/unit/installer_spec.rb

@@ -698,21 +698,21 @@ module Pod
       it 'runs plugins pre install hook' do
         context = stub
         Installer::PreInstallHooksContext.expects(:generate).returns(context)
-        HooksManager.expects(:run).with(:pre_install, context, {})
+        HooksManager.expects(:run).with(:pre_install, context, Installer::DEFAULT_PLUGINS)
         @installer.send(:run_plugins_pre_install_hooks)
       end
 
       it 'runs plugins post install hook' do
         context = stub
         Installer::PostInstallHooksContext.expects(:generate).returns(context)
-        HooksManager.expects(:run).with(:post_install, context, {})
+        HooksManager.expects(:run).with(:post_install, context, Installer::DEFAULT_PLUGINS)
         @installer.send(:run_plugins_post_install_hooks)
       end
 
       it 'only runs the podfile-specified hooks' do
         context = stub
         Installer::PostInstallHooksContext.expects(:generate).returns(context)
-        plugins_hash = { 'cocoapods-keys' => { 'keyring' => 'Eidolon' } }
+        plugins_hash = Installer::DEFAULT_PLUGINS.merge({ 'cocoapods-keys' => { 'keyring' => 'Eidolon' } })
         @installer.podfile.stubs(:plugins).returns(plugins_hash)
         HooksManager.expects(:run).with(:post_install, context, plugins_hash)
         @installer.send(:run_plugins_post_install_hooks)