version: 2

jobs:
  deploy:
    working_directory: ~/repo
    docker:
      - image: circleci/node:8.9.1
    steps:
      - checkout
      - run: npm install
      - run: npm run test
      - run:
          name: Authenticate with registry
          command: echo "//registry.npmjs.org/:_authToken=$NPM_TOKEN" > .npmrc
      - run:
          name: Publish package
          command: npm publish

workflows:
  version: 2
  deploy:
    jobs:
      - deploy:
          filters:
            tags:
              only: /.*/
            branches:
              ignore: /.*/