How to organize a staging environment when using a gem?

Question

Ruby on Rails

Hello.
There is an application that uses my own gem.
in the gemfile, it is connected as the path to the repository and branch: 'master'
But on the staging environment, my code is taken from the staging branch (which is also for the gem).
How can you get out of this situation?

Answer 1

group :production do
  gem 'bar', git: 'https://github.com/foo/bar', branch: 'master'
end

group :staging do
  gem 'bar', git: 'https://github.com/foo/bar', branch: 'staging'
end