version: 2

jobs:
  build:
    working_directory: ~/react-apollo-graphql
    docker:
      - image: circleci/node:8.2.1
        environment:
          CI: 1
    steps:
      - checkout
      - restore_cache:
          key: yarndeps-{{ .Branch }}-{{ checksum "yarn.lock" }}
      - run:
          name: Installing javascript dependencies
          command: yarn install --cache-folder ~/.yarn-cache
      - save_cache:
          key: yarndeps-{{ .Branch }}-{{ checksum "yarn.lock" }}
          paths:
            - ~/.yarn-cache
      - run:
          name: Linting the source code
          command: yarn lint
      - run:
          name: Typechecking the source code
          command: yarn flow
      - run:
          name: Testing the source code
          command: yarn test -- --runInBand

workflows:
  version: 2
  test:
    jobs:
      - build