language: ruby

cache:
  directories:
    - ~/.ccache
    - vendor/bundle
    - build-ImageMagick

os:
  - linux

sudo: required

env:
  - IMAGEMAGICK_VERSION=6.7.7-10
  - IMAGEMAGICK_VERSION=6.7.7-10 CONFIGURE_OPTIONS=--enable-hdri
  - IMAGEMAGICK_VERSION=6.8.9-10
  - IMAGEMAGICK_VERSION=6.8.9-10 CONFIGURE_OPTIONS=--enable-hdri
  - IMAGEMAGICK_VERSION=6.9.10-40
  - IMAGEMAGICK_VERSION=6.9.10-40 CONFIGURE_OPTIONS=--enable-hdri

before_install:
  - source before_install_$TRAVIS_OS_NAME.sh

install: bundle install --path=vendor/bundle --verbose

rvm:
  - 2.3
  - 2.4
  - 2.5
  - 2.6

matrix:
  include:
    - rvm: 2.3
      env: STYLE_CHECKS=true IMAGEMAGICK_VERSION=6.8.9-10

notifications:
  webhooks:
    urls:
      - https://webhooks.gitter.im/e/a98c1112f5d60f97a532
    on_success: change  # options: [always|never|change] default: always
    on_failure: always  # options: [always|never|change] default: always
    on_start: false     # default: false