version: 2.1
jobs:
  publish:
    docker:
      - image: circleci/node:12
    steps:
      - checkout
      - run: sudo apt-get install jq
      - restore_cache:
          key: dependency-cache-{{ checksum "package-lock.json" }}
      - run: npm install
      - run:
          name: Publish If New Version
          command: |
            NPM_VERSION=$(npm view @runwayml/hosted-models versions --json | jq -r '.[-1]')
            LOCAL_VERSION=$(jq -r .version package.json)
            if [[ "$NPM_VERSION" != "$LOCAL_VERSION" ]]; then
              echo "Local version $LOCAL_VERSION doesn't match npm version $NPM_VERSION"
              echo "Publishing a new release!"
              echo "//registry.npmjs.org/:_authToken=${NPM_TOKEN}" > .npmrc
              npm publish --access public
            else
              echo "Local version $LOCAL_VERSION matches npm version $NPM_VERSION"
              echo "Not publishing a new release."
            fi
      - save_cache:
          paths:
            - node_modules
          key: dependency-cache-{{ checksum "package-lock.json" }}
workflows:
  version: 2
  publish:
    jobs:
      - publish:
          filters:
            branches:
              only: master