[TargetIntegrator] Ensures that the user project is not saved when there are no…

[TargetIntegrator] Ensures that the user project is not saved when there are no user targets integrated.

CHANGELOG.md

@@ -49,6 +49,12 @@ To install or update CocoaPods see this [guide](http://docs.cocoapods.org/guides
   [Samuel Giddins](https://github.com/segiddins)
   [#3586](https://github.com/CocoaPods/CocoaPods/issues/2586)
 
+* Ensures that the user project is not saved when there are no
+  user targets integrated.  
+  [Samuel Giddins](https://github.com/segiddins)
+  [#2561](https://github.com/CocoaPods/CocoaPods/issues/2561)
+  [#2593](https://github.com/CocoaPods/CocoaPods/issues/2593)
+
 
 ## 0.34.1
 

lib/cocoapods/installer/user_project_integrator/target_integrator.rb

@@ -34,10 +34,10 @@ module Pod
               add_pods_library
               add_copy_resources_script_phase
               add_check_manifest_lock_script_phase
-            end
               user_project.save
             end
           end
+        end
 
         # @return [String] a string representation suitable for debugging.
         #

spec/unit/installer/user_project_integrator/target_integrator_spec.rb

@@ -97,7 +97,7 @@ module Pod
           @target_integrator.stubs(:native_targets_to_integrate).returns([])
           @target_integrator.expects(:add_pods_library).never
           @target_integrator.expects(:add_copy_resources_script_phase).never
-          @target_integrator.expects(:save_user_project).never
+          @target_integrator.send(:user_project).expects(:save).never
           @target_integrator.integrate!
         end
       end