version: 2
jobs:
  build:
    docker:
      - image: node:latest

    branches:
      ignore:
        - gh-pages # list of branches to ignore
        - /release\/.*/ # or ignore regexes

    steps:
      - checkout

      # Download and cache dependencies
      - restore_cache:
          keys:
          - v1-dependencies-{{ checksum "package-lock.json" }}
          # fallback to using the latest cache if no exact match is found
          - v1-dependencies-

      - run: npm install

      - save_cache:
          paths:
            - node_modules
          key: v1-dependencies-{{ checksum "package-lock.json" }}

      - run:
          name: test
          command: npm run <% if (coverage) { %>test:cov<% } else { %>test<% } %>
      <%_ if (coverage) { -%>
      - run:
          name: upload coverage
          command: bash <(curl -s https://codecov.io/bash)
      <%_ } -%>