version: 2

references:
  common_steps: &common_steps
    steps:
      - checkout
      # - run:
      #     name: update-npm
      #     command: 'npm install -g npm@latest'
      - restore_cache:
          key: dependency-cache-{{ checksum "package.json" }}
      - run:
          name: install-dependencies
          command: npm install
      - save_cache:
          key: dependency-cache-{{ checksum "package.json" }}
          paths:
            - ./node_modules
      - run:
          name: lint
          command: npm run lint
      - run:
          name: test
          command: npm run test

jobs:
  node6:
    docker:
      - image: node:6
    <<: [ *common_steps ]

  node8:
    docker:
      - image: node:8
    <<: [ *common_steps ]

workflows:
  version: 2
  stupid_cirlceci:
    # Evidently CircleCI can't cope with unique job
    # names unless workflows are used.
    jobs:
      - node6
      - node8