test: &test
  working_directory: ~/repo
  steps:
    - checkout
    - run:
        name: Print system information
        command: |
          echo "node $(node -v)"
          echo "npm v$(npm --version)"
    - run:
        name: Install dependencies
        command: sudo apt-get update && sudo apt-get install dbus-x11 -y
    - restore_cache:
        keys:
          - v1-npm-deps-{{ checksum "package.json" }}
          - v1-npm-deps
    - run:
        name: npm install
        command: npm install
    - save_cache:
        key: v1-npm-deps-{{ checksum "package.json" }}
        paths:
          - node_modules
    - run:
        name: npm test
        command: npm test

publish: &publish
  working_directory: ~/repo
  steps:
    - checkout
    - run:
        name: Print system information
        command: |
          echo "node $(node -v)"
          echo "npm v$(npm --version)"
    - run:
        name: Install dependencies
        command: sudo apt-get update && sudo apt-get install dbus-x11 -y
    # Do not explicitly use caching when publishing
    - run:
        name: npm install
        command: npm install
    - run:
        name: set npm auth token
        command: npm config set "//registry.npmjs.org/:_authToken" $NPM_AUTH
    - run:
        name: npm publish
        command: npm publish

version: 2
jobs:
  test-node6:
    <<: *test
    docker:
      - image: circleci/node:6-browsers
  test-node7:
    <<: *test
    docker:
      - image: circleci/node:7-browsers
  test-node-latest:
    <<: *test
    docker:
      - image: circleci/node:latest-browsers
  publish:
    <<: *publish
    docker:
      - image: circleci/node:6-browsers

workflows:
  version: 2
  build-test-and-publish:
    jobs:
      - test-node6
      - test-node7
      - test-node-latest
      - publish:
          filters:
            tags:
              only: '/v?[0-9]+(\.[0-9]+)*(-.+)?/'
            branches:
              ignore: /.*/
          requires:
            - test-node6
            - test-node7
            - test-node-latest