language: ruby

sudo: false

cache:
  - apt
  - bundler
before_install:
  - gem i bundler -v '<2'

addons:
  apt:
    packages:
      - graphviz

matrix:
  include:
    - rvm: 2.6.0
      gemfile: gemfiles/Gemfile-rails.6.0.x

    - rvm: 2.6.0
      gemfile: gemfiles/Gemfile-rails.5.2.x
    - rvm: 2.6.0
      gemfile: gemfiles/Gemfile-rails.5.1.x
    - rvm: 2.6.0
      gemfile: gemfiles/Gemfile-rails.5.0.x

    - rvm: 2.5.3
      gemfile: gemfiles/Gemfile-rails.4.2.x

    - rvm: 2.3.8
      gemfile: gemfiles/Gemfile-rails.4.1.x

    - rvm: 2.4.5
      gemfile: gemfiles/Gemfile-rails.5.2.x
    - rvm: 2.2.10
      gemfile: gemfiles/Gemfile-rails.5.2.x

    - rvm: ruby-head
      gemfile: gemfiles/Gemfile-rails.5.2.x

    - rvm: 2.6.0
      gemfile: gemfiles/Gemfile-rails.edge

  allow_failures:
    - rvm: ruby-head
    - gemfile: gemfiles/Gemfile-rails.edge