Add RuboCop check GH actions

.github/workflows/ci.yml

@@ -0,0 +1,20 @@
+name: CI
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+jobs:
+  rubocop:
+    runs-on: ubuntu-latest
+    env:
+      BUNDLE_SMART_PROXY: '0'
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 2.5
+          bundler-cache: true
+      - name: Run rubocop
+        run: bundle exec rubocop --format github

Gemfile

@@ -3,13 +3,18 @@ source 'https://rubygems.org'
 gemspec
 
 group :development do
-  gem 'smart_proxy', git: 'https://github.com/theforeman/smart-proxy',
-                     branch: 'develop'
-  #gem 'smart_proxy', path: '../smart-proxy'
   gem 'pry'
+
+  if (smart_proxy_path = ENV.fetch('SMART_PROXY_PATH', nil))
+    gem 'smart_proxy', path: smart_proxy_path
+  elsif ENV.fetch('BUNDLE_SMART_PROXY', '1') != '0'
+    gem 'smart_proxy', git: 'https://github.com/theforeman/smart-proxy',
+                       branch: 'develop'
+  end
 end
 
 group :test do
   gem 'minitest'
   gem 'mocha'
+  gem 'theforeman-rubocop', '~> 0.1.0.pre'
 end

smart_proxy_ansible.gemspec

@@ -24,12 +24,12 @@ Gem::Specification.new do |gem|
   gem.require_paths    = ['lib']
   gem.license = 'GPL-3.0'
 
+  gem.required_ruby_version = '>= 2.5'
   gem.add_development_dependency 'rake', '~> 13.0'
   gem.add_development_dependency('minitest', '~> 0')
   gem.add_development_dependency('mocha', '~> 1')
   gem.add_development_dependency('webmock', '~> 3')
   gem.add_development_dependency('rack-test', '~> 0')
   gem.add_development_dependency('logger')
-  gem.add_development_dependency('smart_proxy')
   gem.add_runtime_dependency('smart_proxy_dynflow', '~> 0.1')
 end