GitHub actions config file to check project by RuboCop

rubocop.yml

# .github/workflows/rubocop.yml

name: RuboCop

on: [push, pull_request]

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
      - name: Set up Ruby
        uses: ruby/setup-ruby@v1
        with:
          ruby-version: .ruby-version
          bundler-cache: true # Executes `bundle install` and caches installed gems automatically
#      - name: Bundle install
#        run: bundle install --jobs 4 --retry 3
      - name: Run RuboCop and Check the code
        run: bundle exec rubocop --parallel