git pushing submodule

Question

I cloned repository A to repository B using git clone . /somedirectory/b.git . Later on, I decided to submodule repository C in B git submodule add /path/to/c.git c_in_b. So how do i push back this addition of submodule to A?

Tried using git push but have the following error

remote: error: refusing to update checked out branch: refs/heads/master
remote: error: By default, updating the current branch in a non-bare repository
remote: error: is denied, because it will make the index and work tree inconsistent
remote: error: with what you pushed, and will require 'git reset --hard' to match
remote: error: the work tree to HEAD.
remote: error: 
remote: error: You can set 'receive.denyCurrentBranch' configuration variable t
remote: error: 'ignore' or 'warn' in the remote repository to allow pushing int
remote: error: its current branch; however, this is not recommended unless you
remote: error: arranged to update its work tree to match what you pushed in som
remote: error: other way.
remote: error: 
remote: error: To squelch this message and still keep the default behaviour, se
remote: error: 'receive.denyCurrentBranch' configuration variable to 'refuse'.

Answer 1

This is because you are trying to push to a non-bare repository. Make bare repositories to push to first. Just add --bare to the clone command.

The reason this happens is to prevent loss of work. Having a working dir implies that you may lose work if a branch is going to be updated externally.