Add rubocop linter to code climate

.rubocop.yml

@@ -3,8 +3,11 @@ inherit_from: .rubocop_todo.yml
 AllCops:
   Exclude:
     - 'coverage/**/*'
+    - 'test/dummy/db/**/*'
     - 'test/dummy/tmp/**/*'
     - 'test/dummy/log/**/*'
+    - 'gemfiles/*'
+  TargetRubyVersion: 2.2
 
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle, IndentationWidth.
@@ -15,10 +18,15 @@ AllCops:
 #   that span more than one line.
 #
 # https://rubocop.readthedocs.io/en/latest/cops_layout/#layoutmultilinemethodcallindentation
+Layout/ClosingHeredocIndentation:
+  Exclude:
+    - 'lib/generators/devise_token_auth/install_generator.rb'
+
 Layout/MultilineMethodCallIndentation:
   Enabled: true
   EnforcedStyle: indented_relative_to_receiver
 
+
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle, ProceduralMethods, FunctionalMethods, IgnoredMethods.
 # SupportedStyles: line_count_based, semantic, braces_for_chaining
@@ -91,6 +99,7 @@ Metrics/BlockLength:
     - 'lib/devise_token_auth/engine.rb'
     - 'test/dummy/config/**/*'
     - 'test/dummy/db/**/*'
+    - 'test/factories/*'
   ExcludedMethods:
     - describe
     - draw
@@ -111,4 +120,4 @@ Metrics/LineLength:
     - 'devise_token_auth.gemspec'
   IgnoredPatterns:
     - '(\A|\s)#'
-  Max: 80
+  Max: 80

.travis.yml

@@ -38,3 +38,4 @@ addons:
 
 after_success:
   - bundle exec codeclimate-test-reporter
+  - bundle exec rubocop .

app/controllers/devise_token_auth/application_controller.rb

@@ -54,6 +54,7 @@ def resource_class(m = nil)
 
     def json_api?
       return false unless defined?(ActiveModel::Serializer)
+
       return ActiveModel::Serializer.setup do |config|
         config.adapter == :json_api
       end if ActiveModel::Serializer.respond_to?(:setup)

app/controllers/devise_token_auth/concerns/set_user_by_token.rb

@@ -13,14 +13,12 @@ module DeviseTokenAuth::Concerns::SetUserByToken
 
   # keep track of request duration
   def set_request_start
-    @request_started_at = Time.zone.now
     @used_auth_by_token = true
-
-    # initialize instance variables
     @client_id ||= nil
     @resource ||= nil
     @token ||= nil
     @is_batch_request ||= nil
+    @request_started_at = Time.zone.now
   end
 
   def ensure_pristine_resource

app/controllers/devise_token_auth/confirmations_controller.rb

@@ -29,7 +29,6 @@ def show
         # fall back to default value if provided
         @redirect_url ||= DeviseTokenAuth.default_confirm_success_url
 
-
         redirect_to(@resource.build_auth_url(@redirect_url, redirect_headers))
       else
         raise ActionController::RoutingError, 'Not Found'

app/controllers/devise_token_auth/sessions_controller.rb

@@ -22,10 +22,8 @@ def create
       end
 
       if @resource && valid_params?(field, q_value) && (!@resource.respond_to?(:active_for_authentication?) || @resource.active_for_authentication?)
-        valid_password = @resource.valid_password?(resource_params[:password])
-        if (@resource.respond_to?(:valid_for_authentication?) && !@resource.valid_for_authentication? { valid_password }) || !valid_password
-          return render_create_error_bad_credentials
-        end
+        return render_create_error_bad_credentials unless valid_credentials?
+
         @client_id, @token = @resource.create_token
         @resource.save
 
@@ -127,5 +125,10 @@ def render_destroy_error
     def resource_params
       params.permit(*params_for_resource(:sign_in))
     end
+
+    def valid_credentials?
+      valid_password = @resource.valid_password?(resource_params[:password])
+      (@resource.respond_to?(:valid_for_authentication?) && @resource.valid_for_authentication? { valid_password }) || valid_password
+    end
   end
 end

app/models/devise_token_auth/concerns/user.rb

@@ -46,6 +46,7 @@ def will_save_change_to_email?; false; end
 
     def password_required?
       return false unless provider == 'email'
+
       super
     end
 

devise_token_auth.gemspec

@@ -20,7 +20,7 @@ Gem::Specification.new do |s|
   s.test_files = Dir['test/**/*']
   s.test_files.reject! { |file| file.match(/[.log|.sqlite3]$/) }
 
-  s.required_ruby_version = ">= 2.2.0"
+  s.required_ruby_version = '>= 2.2.0'
 
   s.add_dependency 'rails', '>= 4.2.0', '< 6'
   s.add_dependency 'devise', '> 3.5.2', '< 4.6'

test/controllers/custom/custom_confirmations_controller_test.rb

@@ -5,7 +5,7 @@
 class Custom::ConfirmationsControllerTest < ActionController::TestCase
   describe Custom::ConfirmationsController do
     include CustomControllersRoutes
-    
+
     before do
       @redirect_url = Faker::Internet.url
       @new_user = create(:user)

test/controllers/custom/custom_registrations_controller_test.rb

@@ -8,8 +8,8 @@ class Custom::RegistrationsControllerTest < ActionDispatch::IntegrationTest
 
     before do
       @create_params = attributes_for(:user,
-        confirm_success_url: Faker::Internet.url,
-        unpermitted_param: '(x_x)')
+                                      confirm_success_url: Faker::Internet.url,
+                                      unpermitted_param: '(x_x)')
 
       @existing_user = create(:user, :confirmed)
       @auth_headers  = @existing_user.create_new_auth_token

test/controllers/devise_token_auth/token_validations_controller_test.rb

@@ -54,7 +54,7 @@ class DeviseTokenAuth::TokenValidationsControllerTest < ActionDispatch::Integrat
         error = assert_raises DeviseTokenAuth::Errors::InvalidModel do
           get '/auth/validate_token', params: {}, headers: @auth_headers
         end
-        assert_equal(error.message, "Cannot set auth token in invalid model. Errors: [\"Email is not an email\"]")
+        assert_equal(error.message, 'Cannot set auth token in invalid model. Errors: ["Email is not an email\"]')
       end
     end
 

test/factories/users.rb

@@ -13,13 +13,13 @@
     end
 
     trait :confirmed do
-      after(:create) { |user| user.confirm }
+      after(:create, &:confirm)
     end
 
     # confirmation period is expired
     trait :unconfirmed do
       after(:create) do |user, evaluator|
-        user.update_attribute(:confirmation_sent_at, evaluator.allow_unconfirmed_period - 1.day )
+        user.update_attribute(:confirmation_sent_at, evaluator.allow_unconfirmed_period - 1.day)
       end
     end
 
@@ -29,7 +29,7 @@
     end
 
     trait :locked do
-      after(:create) { |user| user.lock_access! }
+      after(:create, &:lock_access!)
     end
 
     factory :lockable_user, class: 'LockableUser'