How to make a git repository read-only?

Question

I have some git repositories accessed remotely through SSH and I want to make some of them read-only to prevent more pushes. Some people have remotes pointing to these repos

Answer 1

Inspired by this comment:

1. Update your hooks/pre-receive file with the following content:

   #!/bin/sh
   
   echo "Closed for all pushes" ; exit 1
   

This way, all users trying to push changes to this repo will receive the message above and the push will be rejected.