os: linux
dist: xenial
language: ruby
cache: bundler
rvm:
- 2.6
- 2.5
gemfile:
- gemfiles/rails_61.gemfile
- gemfiles/rails_60.gemfile
- gemfiles/rails_52.gemfile
jobs:
  include:
  # ruby 3.x
  - rvm: 3.0
    gemfile: gemfiles/rails_61.gemfile
  - rvm: 3.0
    gemfile: gemfiles/rails_60.gemfile
  # old rails
  - rvm: 2.5
    gemfile: gemfiles/rails_51.gemfile
  - rvm: 2.5
    gemfile: gemfiles/rails_50.gemfile
  - rvm: 2.5
    gemfile: gemfiles/rails_42.gemfile
  # old rubies
  - rvm: 2.4
    gemfile: gemfiles/rails_52.gemfile
notifications:
  email: false