config.yml

coach--lint (Gemfile):
    resource_class: small
    environment:
      BUNDLE_GEMFILE: Gemfile
    docker:
    - image: ruby:2.4.2
      environment:
        GEM_SOURCE: https://rubygems.org
        RAILS_ENV: test
        RACK_ENV: test
    working_directory: "~/coach"
    steps:
    - attach_workspace:
        at: "/tmp/"
    - run:
        name: Skip this job if the project has not changed
        command: |
          if [[ -n $CIRCLE_PULL_REQUEST ]] && [[ ! -f "/tmp/changed_projects/coach" ]]; then
            circleci step halt
          fi
    - run:
        name: Generate git refs cache key
        command: date +%Y-%m-%d > /tmp/.git-refs-cache-key
    - restore_cache:
        keys:
        - v1-git-refs-{{ checksum "/tmp/.git-refs-cache-key" }}
        - v1-git-refs-
    - run:
        name: Checkout code
        command: checkout
    - save_cache:
        paths: ".git"
        key: v1-git-refs-{{ checksum "/tmp/.git-refs-cache-key" }}
    - restore_cache:
        keys:
        - v3-coach-Gemfile-{{ checksum "coach/coach.yml" }}-{{ checksum "coach/Gemfile.lock"
          }}
        - v3-coach-Gemfile-
    - run:
        name: install dependencies
        command: |
          cd coach
          bundle check --path vendor/bundle \
            || bundle install --clean --jobs=4 --retry=3 --path vendor/bundle --frozen
    - save_cache:
        paths:
        - coach/vendor/bundle
        key: v3-coach-Gemfile-{{ checksum "coach/coach.yml" }}-{{ checksum "coach/Gemfile.lock"
          }}
    - run:
        name: run rubocop
        command: |
          cd coach
          mkdir -p /tmp/artifacts
          bundle exec rubocop --format progress \
                              --format html \
                              --out /tmp/artifacts/rubocop-report.html
    - run:
        name: run brakeman
        command: |
          cd coach
          mkdir -p /tmp/artifacts
          bundle exec brakeman --output /tmp/artifacts/brakeman.html \
                               --exit-on-warn \
                               --exit-on-error
    - store_artifacts:
        path: "/tmp/artifacts"
        destination: artifacts
    - run:
        name: notify coach of Build Failures
        command: notify_coach build_failures
        when: on_fail