language: ruby
cache: bundler
rvm:
  - 2.0.0  # latest 2.0 by 2019-05 
  - 2.1.10 # latest 2.1 by 2019-05
  - 2.2.10 # latest 2.2 by 2019-05
  - 2.3.8  # latest 2.3 by 2019-05
  - 2.4.6  # latest 2.4 by 2019-05
  - 2.5.5  # latest 2.5 by 2019-05
  - 2.6.3  # latest 2.6 by 2019-05
  - 2.1.5  #  ruby in debian 8 jessie
  - 2.3.3  #  ruby in debian 9 stretch
  - 2.5.5  # ruby in debian 10 buster


# tesing versions with native libxml2 in debian
script: 'bundle exec rake'
matrix:
  include:
  - rvm: 2.4.0
    xx_before_install:
      - gem uninstall libxml-ruby
      - sudo apt-get install ruby-libxml
      - sudo apt-get install libxml2
      - gem update bundler

notifications:
  email:
    recipients:
      - travis@kub.cz
    on_failure: change
    on_success: never