name: RuboCop

on: [push, pull_request]

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout Repository
      uses: actions/checkout@v2

    - name: Setup Ruby
      uses: ruby/setup-ruby@v1

    - name: Cache gems
      uses: actions/cache@v1
      with:
        path: ../vendor/bundle
        key: ${{ runner.os }}-rubocop-${{ hashFiles('**/Gemfile.lock') }}
        restore-keys: |
          ${{ runner.os }}-rubocop-

    - name: Install gems
      run: |
        bundle config path ../vendor/bundle
        bundle install --jobs 4 --retry 3

    - name: Run RuboCop
      run: bundle exec rubocop --parallel