Open Radar

 
Summary:
If a repository is used as a submodule in more than one location in the project repository structure, Xcode Server only checks it out in one location. As an abstract example, imagine I have an application repository A and two framework repositories F1 and F2. 

In repository A, I add F1 and F2 as submodules.

It turns out that F1 depends on F2 and so F1 has also added F2 as a submodule.

I apologise for my awful ascii art, but the repository structure is something like the following:

A
- F1
  - F2
- F2
     

The isssue is that Xcode Server only checks out F2 once in one place, even though it is required in two locations.

For a more concrete example, I use git submodules to link frameworks that I have made into my apps. My applications and frameworks all use a shared set of configuration files to set Xcode build settings. These configuration files are added as a submodule to the app and framework repositories.

All of my frameworks use this shared set of configuration files. I also have one framework which links to another one as a submodule (as per the more abstract example above). Because of this, I have never been able to use Xcode bots for these projects, even though I have had great success with them using test projects and for building and testing the frameworks separately. I would love to use bots for my application projects!

Steps to Reproduce:
I have made an example repository that demonstrates this problem, so you can simply add it to Xcode bots and watch it fail to clone. It is a test application with one framework, with both the application and framework using a configurations submodule.

All the repositories are read-only so you won't need to set up any SSH keys. :-) 

git://github.com/danielctull-playground/Application.git

Expected Results:
Clone succeeds and building is able to occur.

Actual Results:
An error, probably about missing platform specification – in this case because one of the configuration file sets is missing.