sudo: false
language: ruby
rvm:
  - 2.5.0
  - 2.4.3
  - 2.3.6
  - 2.2.9
  - 2.1.10
before_install:
  - sudo apt-get update
  - sudo apt-get install imagemagick libmagickcore-dev libmagickwand-dev
  - sudo apt-get install -qq graphicsmagick
  - gem install bundler -v 1.16.1