language: ruby
rvm:
  - 1.9
  - 2.0
  - 2.1
  - 2.2
  - 2.3.1
  - 2.4.0
env:
  - sshkit="master"
  - sshkit="= 1.7.1"
  - sshkit="= 1.6.1"
matrix:
  exclude:
    # Older versions of SSHKit don't work with Ruby 2.4, so skip those
    - rvm: 2.4.0
      env: sshkit="= 1.7.1"
    - rvm: 2.4.0
      env: sshkit="= 1.6.1"
  include:
    # Run Danger only once, on 2.4.0
    - rvm: 2.4.0
      script: bundle exec danger

before_install: gem install bundler --conservative --version '~> 1.13.7'