language: ruby

rvm:
- 2.7
- 2.6
- 2.5

before_script:
# https://github.com/nodesource/distributions/blob/master/README.md#installation-instructions
- curl -sL https://deb.nodesource.com/setup_15.x | sudo -E bash -
- sudo apt-get install -y nodejs
- sudo npm install -g coffeelint