name: Continuous Integration

on: [push, pull_request]

jobs:
  ci:
    if: "!contains(github.event.head_commit.message, 'skip ci')"
    runs-on: ubuntu-latest

    strategy:
      fail-fast: true

    steps:
      - uses: actions/checkout@v1

      - name: Install required ruby
        uses: ruby/setup-ruby@v1

      - uses: actions/cache@v2
        with:
          path: vendor/bundle
          key: ${{ runner.os  }}-gems-${{ hashFiles('**/Gemfile.lock')  }}
          restore-keys: |
            ${{ runner.os  }}-gems-

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

      - name: Run rubocop
        run: bundle exec rubocop

      - name: Run tests
        run: bundle exec rspec