Xcode5 Code Coverage (from cmd-line for CI builds)

Question

How can I generate code coverage with Xcode 5 and iOS7?

Prior to upgrading I was getting code coverage just fine. Now I can't see any *.gcda files being produced.

The cmd-line that I'm using is:

xcodebuild -workspace ${module.name}.xcworkspace test -scheme ${module.name} -destination OS=${module.sdk.version},name=iPad -configuration Debug

Works with AppCode

• When I execute the tests via AppCode I can see *.gcda files being produced in ~/Library/Caches/appCode20/DerivedData. . . I need this to work for my Continuous Integration builds.

Works from Xcode IDE

• Also works from Xcode IDE. . . is there a cmd-line that will produce coverage, or is this an Xcode bug?

Answer 1

Update: New accepted answer

In some cases the coverage flushing needs to be done from within the app itself. The solution's outline in this question provide details.