GitLab - Determine if branch is protected from terminal git command

There is no way you can do that using git command-line.

But, there an alternative. You can install - a pypi module:

pip install python-gitlab

Here is the documentation, you can refer.

To get the information about the protected branches, you can do:

p_branches = project.protectedbranches.list()

using python.

Here is another question I found, which is similar to yours.

Edit:

Here is the gitlab api. The endpoint to get the protected branches is give as:

/projects/:id/protected_branches

Protected branch isn't a git feature.

It's a feature of tools like gitlab or github.

Maybe you can get the protected branch of a repository through gitlab api and make verification before you push.

https://docs.gitlab.com/ee/api/protected_branches.html