os:
  - linux
  - osx
matrix:
  include:
    - os: osx
      osx_image: xcode8.3
addons:
  apt:
    sources:
      - sourceline: 'deb https://dl.yarnpkg.com/debian/ stable main'
        key_url: 'https://dl.yarnpkg.com/debian/pubkey.gpg'
    packages:
      - yarn
env:
  - NODE_VERSION="9"
script: ./scripts/travis-build.sh

os:
  - linux
  - osx
addons:
  apt:
    sources:
      - sourceline: 'deb https://dl.yarnpkg.com/debian/ stable main'
        key_url: 'https://dl.yarnpkg.com/debian/pubkey.gpg'
    packages:
      - yarn
env:
  - NODE_VERSION="9"
script: ./scripts/travis-build.sh

Remove matrix in Travis CI config
Remove matrix in Travis CI config
