language: node_js
install:
  - npm install --build-from-source
node_js:
  - '12'
  - '10'
  - '8'
  - '6'
addons:
  apt:
    sources:
      - ubuntu-toolchain-r-test
    packages:
      - libcairo2-dev
      - libjpeg8-dev
      - libpango1.0-dev
      - libgif-dev
      - librsvg2-dev
      - g++-4.9
env:
  - CXX=g++-4.9
script:
  - node_version=$(node -v); if [ ${node_version:1:2} = 10 ]; then npm run dtslint; fi
  - npm test