language: ruby
os: linux
rvm:
  - 2.4
  - 2.5
  - 2.6
  - 2.7
  - 3.0
  - ruby-head
arch:
  - amd64
  - arm64
jobs:
  include:
    - rvm: 2.5
      os: osx
      osx_image: xcode9.4
    - rvm: 2.6
      os: osx
      osx_image: xcode11.3
    - rvm: 2.6
      os: osx
      osx_image: xcode12.2
    - rvm: 2.7
      os: osx
      osx_image: xcode12.2
dist: xenial
before_install:
  - gem update --system
  - gem install bundler -v 1.16.2
cache: bundler