version: 2

aliases:
  - &defaults
    docker:
      - image: circleci/node:6
  - &step_restore_cache
    restore_cache:
      keys:
        - v1-dependencies-{{ checksum "package.json" }}
        - v1-dependencies-
  - &step_save_cache
    save_cache:
      paths:
        - node_modules
      key: v1-dependencies-{{ checksum "package.json" }}

jobs:
  test:
    <<: *defaults
    steps:
      - checkout
      - *step_restore_cache
      - run: npm install
      - *step_save_cache
      - run: npm test

  release:
    docker:
      - image: circleci/node:8
    steps:
      - checkout
      - *step_restore_cache
      - run: npm install
      - *step_save_cache
      - run: npm run semantic-release || true

workflows:
  version: 2

  test_and_release:
    jobs:
      - test
      - release:
          requires:
            - test
          filters:
            branches:
              only: master