Deploying a git project to a server domain?

Question

git

How to properly deploy a repository to a server?
1. There is Gogs, a git service, it has a repository.
2. On the same server there is a test domain where files from the dev branch should be poured after pushing changes.
3. On another server, there is a production domain where files from the master branch should be poured.
Actually, as I understand it, all this is implemented through hooks?
Maybe there is a "collection" of hooks?)
I tried this for a regular deployment:

#!/bin/sh
git --work-tree=/var/www/site.ru/data --git-dir=/var/www/gogs.ru/gogs-repositories/vlad/site.git checkout -f

But as I understand it, files will not be deleted here. How to add a branch here? To look only in the dev branch.
And it's not entirely clear how to organize an ftp deployment to production.