config.yml

version: 2
jobs:
  build_and_test_reorg:
    docker:
      # Any image that includes the docker client will do
      - image: circleci/ruby
    steps:
      - checkout
      - setup_remote_docker

      - run:
          name: Log in to the Docker registry
          command: |
            if [ -n "$DOCKER_USER" ] && [ -n "$DOCKER_PASSWORD" ]; then
              docker login -u "$DOCKER_USER" -p "$DOCKER_PASSWORD"
            else
              echo "No Docker credentials, skipping login"
            fi

      - run:
          name: Prepare environment variables
          command: |
            BRANCH_TAG="$(echo $CIRCLE_BRANCH | sed -E 's/[^A-Za-z0-9]+/-/g')"
            echo "export BRANCH_TAG='$BRANCH_TAG'" >> $BASH_ENV

            VERSION="$(grep -Eo "[0-9]+\.[0-9]+\.[0-9]+" common/lib/dependabot/version.rb)"
            echo "export VERSION='$VERSION'" >> $BASH_ENV

      - run:
          name: Pull Docker base images & warm Docker cache
          command: |
            docker pull ubuntu:18.04
            docker pull "dependabot/dependabot-core-ci:core--$BRANCH_TAG" ||
              docker pull "dependabot/dependabot-core:latest"
            docker pull "dependabot/dependabot-core-ci:ci--$BRANCH_TAG" ||
              docker pull "dependabot/dependabot-core-ci:latest" || true

      - run:
          name: Build dependabot-core image
          command: |
            docker build \
              -t "dependabot/dependabot-core:latest" \
              -t "dependabot/dependabot-core:$VERSION" \
              -t "dependabot/dependabot-core-ci:core--$BRANCH_TAG" \
              --cache-from ubuntu:18.04 \
              --cache-from "dependabot/dependabot-core-ci:core--$BRANCH_TAG" \
              --cache-from "dependabot/dependabot-core:latest" \
              .

      - run:
          name: Push dependabot-core image to CI cache repo
          command: |
            if [ -n "$DOCKER_USER" ] && [ -n "$DOCKER_PASSWORD" ]; then
              docker push "dependabot/dependabot-core-ci:core--$BRANCH_TAG"
            else
              echo "No Docker credentials, skipping push"
            fi

      - run:
          name: Build dependabot-core-ci image
          command: |
            rm .dockerignore  # we usually don't want tests etc, but here we do
            docker build \
              -t "dependabot/dependabot-core-ci:latest" \
              -t "dependabot/dependabot-core-ci:ci--$BRANCH_TAG" \
              -f Dockerfile.ci \
              --cache-from ubuntu:18.04 \
              --cache-from "dependabot/dependabot-core:latest" \
              --cache-from "dependabot/dependabot-core-ci:ci--$BRANCH_TAG" \
              --cache-from "dependabot/dependabot-core-ci:latest" \
              .

      - run:
          name: Rubocop
          command: |
            docker run \
              --env "CIRCLE_COMPARE_URL=$CIRCLE_COMPARE_URL" \
              -ti dependabot/dependabot-core-ci \
              bash -c "rake ci:rubocop"

      - run:
          name: RSpec
          command: |
            docker run \
              --env "CIRCLE_COMPARE_URL=$CIRCLE_COMPARE_URL" \
              -ti dependabot/dependabot-core-ci \
              bash -c "rake ci:rspec"

      - run:
          name: Push dependabot-core image to Docker hub, if on master
          command: |
            if [ -n "$DOCKER_USER" ] && [ -n "$DOCKER_PASSWORD" ]; then
              if [ "${CIRCLE_BRANCH}" == "master" ]; then
                echo "Pushing dependabot-core:{latest,$VERSION}} to registry"
                docker push "dependabot/dependabot-core:$VERSION"
                docker push "dependabot/dependabot-core:latest"
              else
                echo "Not on master, skipping deployment"
              fi
            else
              echo "No Docker credentials, skipping push"
            fi

      - run:
          name: Push dependabot-core-ci image to CI cache repo
          command: |
            if [ -n "$DOCKER_USER" ] && [ -n "$DOCKER_PASSWORD" ]; then
              docker push "dependabot/dependabot-core-ci:ci--$BRANCH_TAG"
              docker push "dependabot/dependabot-core-ci:latest"
            else
              echo "No Docker credentials, skipping push"
            fi

  test_core:
    docker:
      - image: dependabot/dependabot-core:0.1.47
    working_directory: ~/dependabot-core
    steps:
      - checkout

      - restore_cache:
          keys:
            - v1-dependencies-{{ .Branch }}
            - v1-dependencies-master

      # Install dependencies
      - run: cd npm_and_yarn/helpers && yarn install

      - save_cache:
          key: v1-dependencies-{{ .Branch }}-{{ epoch }}
          paths:
            - ~/dependabot-core/npm_and_yarn/helpers/node_modules

      # Run code formatting linters
      - run: cd npm_and_yarn/helpers && yarn lint

      # Run tests
      - run: cd npm_and_yarn/helpers && yarn test

      - store_test_results:
          path: ~/rspec
      - store_artifacts:
          path: ~/rspec

  release_gems:
    docker:
      - image: dependabot/dependabot-core:latest
    working_directory: ~/dependabot-core
    steps:
      - checkout
      - run: |
          [ -d ~/.gem ] || mkdir ~/.gem
          echo "---" > ~/.gem/credentials
          echo ":rubygems_api_key: $RUBYGEMS_API_KEY" > ~/.gem/credentials
          chmod 0600 ~/.gem/credentials
      - run: gem install rake && rake gems:release

workflows:
  version: 2
  test:
    jobs:
      - test_core
      - build_and_test_reorg
      - release_gems:
          filters:
            branches:
              ignore: /.*/
            tags:
              only: /^v[0-9]+\.[0-9]+\.[0-9]+$/