language: ruby

sudo: false

cache: bundler

before_install:
  - rvm get head
  - gem update bundler

rvm:
  - 2.2.8
  - 2.3.5
  - 2.4.2
  - ruby-head

matrix:
  allow_failures:
    - rvm: ruby-head
  fast_finish: true

notifications:
  recipients:
    - mail@zzak.io
  slack: sinatrarb:LQGhUfGYcqRgRzwKea0bqUhY