version: 2
jobs:
  build:
    docker:
      - image: circleci/node:10.4-browsers

    working_directory: ~/repo

    steps:
      - checkout

      - restore_cache:
          keys:
          - v1-dependencies-{{ checksum "package.json" }}
          - v1-dependencies-

      - run:
          name: Install
          command: yarn

      - save_cache:
          paths:
            - node_modules
          key: v1-dependencies-{{ checksum "package.json" }}
        
      - run: 
          name: Build
          command: yarn build-datatable
      
      - save_cache:
          paths: 
            - dist/ng-datatable
          key: v1-dist-{{ .Environment.CIRCLE_BRANCH }}-{{ .Environment.CIRCLE_SHA1 }}

      - run:
          name: Publish
          command: |
            if ["${CIRCLE_BRANCH}" === "production"]; then
              cd dist/ng-datatable
              npm publish
            else
              echo "Only the production branch is published"
            fi