[SpecHelper::TemporaryRepos] Fix issue with bacon

Methods are not properly inherited from contexts while setup and teardown callbacks are inherited. Fix that by calling #temorary_repos_path on the module.

spec/functional/command/repo/list_spec.rb

@@ -44,8 +44,6 @@ module Pod
     end
 
     describe 'with a git based spec repository with a remote' do
-      extend SpecHelper::TemporaryRepos
-
       before do
         config.repos_dir = tmp_repos_path
 

spec/functional/command/spec_spec.rb

@@ -194,8 +194,6 @@ module Pod
     #-------------------------------------------------------------------------#
 
     describe 'lint subcommand' do
-      extend SpecHelper::TemporaryRepos
-
       it "complains if it can't find any spec to lint" do
         Dir.chdir(temporary_directory) do
           lambda { command('spec', 'lint').run }.should.raise Informative

spec/functional/command/update_spec.rb

@@ -38,8 +38,6 @@ module Pod
       end
 
       describe 'tells the user that the Pods cannot be updated unless they are installed' do
-        extend SpecHelper::TemporaryRepos
-
         before do
           podfile = Podfile.new do
             platform :ios

spec/spec_helper/temporary_repos.rb

@@ -76,12 +76,26 @@ module SpecHelper
     #--------------------------------------#
 
     def tmp_repos_path
-      SpecHelper.temporary_directory + 'cocoapods/repos'
+      TemporaryRepos.tmp_repos_path
     end
 
-    module_function :tmp_repos_path
+    def self.tmp_repos_path
+      SpecHelper.temporary_directory + 'cocoapods/repos'
+    end
 
     def self.extended(base)
+      # Make Context methods available
+      # WORKAROUND: Bacon auto-inherits singleton methods to child contexts
+      # by using the runtime and won't include methods in modules included
+      # by the parent context. We have to ensure that the methods will be
+      # accessible by the child contexts by defining them as singleton methods.
+      TemporaryRepos.instance_methods.each do |method|
+        unbound_method = base.method(method).unbind
+        base.define_singleton_method method do |*args, &b|
+          unbound_method.bind(self).call(*args, &b)
+        end
+      end
+
       base.before do
         tmp_repos_path.mkpath
       end