sudo: true
language: ruby
rvm:
  - 2.2
  - 2.3
  - 2.4
gemfile:
  - gemfiles/rails_32.gemfile
  - gemfiles/rails_40.gemfile
  - gemfiles/rails_41.gemfile
  - gemfiles/rails_42.gemfile
  - gemfiles/rails_50.gemfile
  - gemfiles/rails_51.gemfile
matrix:
  exclude:
    - rvm: 2.4
      gemfile: gemfiles/rails_32.gemfile
    - rvm: 2.4
      gemfile: gemfiles/rails_40.gemfile
    - rvm: 2.4
      gemfile: gemfiles/rails_41.gemfile
before_install: 
  - gem install bundler -v 1.15.3
services:
  - memcached