Process git submodules

[rimutaka]

git submodule lists all the modules. No idea how to access them or when.

Submodules are listed in .submodules files and all the repos are centralized in one .git directory.
The actual directories of the submodule projects have a .git file pointing at where the master dir is, e.g. gitdir: ../../.git/modules/some_project

[rimutaka]

Testing this on citi project.

[rimutaka]

It doesn't seem to invoke stackmuncher or maybe it invokes it in a wrong working dir. I could not even make the hook to work on Win.

[rimutaka]

Git needs to see shebang in the hook file on windows to execute it.

• https://longair.net/blog/2011/04/09/missing-git-hooks-documentation/
• https://stackoverflow.com/questions/22074247/git-hook-under-windows
• https://stackoverflow.com/questions/18277429/executing-git-hooks-on-windows
• https://stackoverflow.com/questions/23384196/how-to-run-git-hook-script-on-windows-using-repository-through-filesystem

Fixed in e2144fc