os:
  - osx
  - linux
language: node_js
node_js:
  - "9"
  - "8"
  - "7"
  - "6"
  - "5"
  - "4"
cache:
  directories:
    - ~/.npm

deploy:
  provider: script
  skip_cleanup: true
  script:
    - npm run travis-deploy-once "npm run semantic-release"
  on:
      branch: master