language: ruby
os: linux
dist: xenial
rvm:
  - 2.6.6
  - 2.5.3
  - 2.4.5
gemfile:
  - Gemfile
  - Gemfile.rails51
bundler_args: --without production
cache: bundler
env:
  jobs:
    - TASK='bundle exec rake spec'
jobs:
  include:
    - {}
    - name: rubocop
      script: bundle exec rubocop
script: $TASK
before_install:
  - gem uninstall -v '>= 2' -i $(rvm gemdir)@global -ax bundler || true
  - gem install bundler -v '< 2'