language: node_js
cache:
  directories:
    - ~/.npm
notifications:
  email: false
node_js:
  - '9'
  - '8'
  - '6'
  - '4'
before_install:
  - if [ "$TRAVIS_PULL_REQUEST_BRANCH" == "" ]; then echo "//registry.npmjs.org/:_authToken=\${NPM_TOKEN}" >> .npmrc; fi
after_success:
  - npm run semantic-release
branches:
  except:
    - /^v\d+\.\d+\.\d+$/