sudo: false
language: ruby
rvm:
  - ruby-2.1.10
  - ruby-2.2.7
  - ruby-2.3.4
  - ruby-2.4.1
gemfile:
  - gemfiles/rails_4_0.gemfile
  - gemfiles/rails_4_1.gemfile
  - gemfiles/rails_4_2.gemfile
  - gemfiles/rails_5_0.gemfile
  - gemfiles/rails_5_1.gemfile
matrix:
  exclude:
    - rvm: ruby-2.1.10
      gemfile: gemfiles/rails_5_0.gemfile
    - rvm: ruby-2.1.10
      gemfile: gemfiles/rails_5_1.gemfile
before_install: gem install bundler -v 1.15.4