Git has a concept of "remotes" (tracked repositories), which allows to have
arbitrary alternate remote locations besides the typical "origin" remote, like "web".
The basic idea is to setup a user on the remote server ($SSH_DEPLOYUSER) which
is allowed to login via SSH (e.g. by adding your public SSH key to the deploy
user's ~/.ssh/authorized_keys file) and will be used to checkout what you want
To accomplish this you have to setup the Git working directory on the server and
add a "post-receive" hook, which will be invoked by Git after you have pushed
to the repository:
On the local side you have to add a "remote" (named "web" in this case):
The final step is to initially push to it (which requires to specify the "refspec" once - following deployments can be done by just doing a "git push web"):
These instructions are based on the howto at toroid.org/ams/git-website-howto, but the main difference is that I am not using a "bare" repository here, which would not allow to use Git submodules; submodules require a "full" Git working directory and having a checkout of the repository requires the receive.denyCurrentBranch=ignore setting.