circle.yml

version: 2
jobs:
  build:
    working_directory: ~/repo
    docker:
      - image: circleci/node:latest
    steps:
      - checkout
      - restore_cache:
          key: dependency-cache-{{ checksum "package-lock.json" }}
      - run:
          name: install dependences
          command: npm install
      - save_cache:
          key: dependency-cache-{{ checksum "package-lock.json" }}
          paths:
            - ./node_modules
      - run:
          name: test
          command: npm run test
      - run:
          name: build
          command: npm run build
  publish:
    working_directory: ~/repo
    docker:
      - image: circleci/node:latest
    steps:
      - checkout
      - run:
          name: add npm token
          command: echo "//registry.npmjs.org/:_authToken=$NPM_TOKEN" >> ~/.npmrc
      - restore_cache:
          key: dependency-cache-{{ checksum "package-lock.json" }}
      - run:
          name: install dependences
          command: npm install
      - save_cache:
          key: dependency-cache-{{ checksum "package-lock.json" }}
          paths:
            - ./node_modules
      - run:
          name: publish on npm
          command: npm publish

workflows:
  version: 2
  build-and-publish:
    jobs:
      - build:
          filters:
            tags:
              ignore: /v[0-9]+(\.[0-9]+)*/
      - publish:
          filters:
            branches:
              ignore: /.*/
            tags:
              only: /v[0-9]+(\.[0-9]+)*/