How to deal with Git Submodules in Visual Studio solutions with different layout?

Question

We develop with Visual Studio 2010 (in C#) and migrated a while ago from SVN to GIT. Now we try to split up our repository (which is quite big - ~30.000 files) to many git repos

Answer 1

So if I understand you correctly, the problem is with Visual Studio and not with Git? If that's the case, use the old tree structure that worked with Visual Studio. Make your submodules structure a tree structure too. So the top of the tree would be one super repo whose sub modules (the branches) would have submodules of their own, until you get down to the leaves of your tree. It would be a pain to setup at first, but it should just work.