Get the variables from gitlab project variables

[ecourreges-orange]

Is your feature request related to a problem? Please describe.
I would like an option for this tool to automatically get and use variables from the gitlab server project and/or group level variables.
I am first interested by project level variables: https://docs.gitlab.com/ee/api/project_level_variables.html

Describe the solution you'd like
I would like a CLI option like --project-id my_id and/or a project-id setting in one of the dot files, so that I can commit this file safely, and automatically get the variables filled from a call to gitlab API, whose URL can be guessed from the git remote and the project ID.

Describe alternatives you've considered
I have to manually create a file in my repo at first use or use --variable every time which is cumbersome

[firecow]

I'm most likely not going to work on this. We only use project CI/CD variables for holding secrets, that we do not want our developers to get their hands on.

I see the purpose of this feature though.

[firecow]

@ecourreges-orange Keep it open, thats ok. Maybe some other contributor will implement it.