Suggestions for PR #1

.github/workflows/test.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         ruby:
-          - '2.6'
+          - '2.7'
 
     steps:
     - uses: actions/checkout@v2

.gitignore

@@ -6,6 +6,6 @@
 /pkg/
 /spec/reports/
 /tmp/
-
+vendor/
 # rspec failure tracking
 .rspec_status

.rubocop.yml

@@ -1,9 +1,9 @@
-AllCops:
-  NewCops: enable
-  SuggestExtensions: false
-  TargetRubyVersion: 2.6
+inherit_gem:
+  rubocop-github:
+    - config/default.yml
+    - config/rails.yml
 
 Naming/FileName:
   Enabled: true
   Exclude:
-    - "rubocop-rails-accessibility.gemspec"
+    - "rubocop-rails-accessibility.gemspec"

Gemfile

@@ -1,10 +1,6 @@
 # frozen_string_literal: true
 
-source 'https://rubygems.org'
+source "https://rubygems.org"
 
 # Specify your gem's dependencies in rubocop-rails-accessibility.gemspec
 gemspec
-
-gem 'rake', '~> 13.0'
-gem 'rspec', '~> 3.0'
-gem 'rubocop', '~> 1.21'

Gemfile.lock

@@ -2,7 +2,7 @@ PATH
   remote: .
   specs:
     rubocop-rails-accessibility (0.1.0)
-      rubocop
+      rubocop (>= 1.0.0)
 
 GEM
   remote: https://rubygems.org/
@@ -31,12 +31,15 @@ GEM
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     minitest (5.16.3)
+    nokogiri (1.13.8-x86_64-darwin)
+      racc (~> 1.4)
     nokogiri (1.13.8-x86_64-linux)
       racc (~> 1.4)
     parallel (1.22.1)
     parser (3.1.2.0)
       ast (~> 2.4.1)
     racc (1.6.0)
+    rack (2.2.4)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
@@ -71,20 +74,34 @@ GEM
       unicode-display_width (>= 1.4.0, < 3.0)
     rubocop-ast (1.19.1)
       parser (>= 3.1.1.0)
+    rubocop-github (0.18.0)
+      rubocop (>= 1.0.0)
+      rubocop-performance
+      rubocop-rails
+    rubocop-performance (1.14.3)
+      rubocop (>= 1.7.0, < 2.0)
+      rubocop-ast (>= 0.4.0)
+    rubocop-rails (2.15.2)
+      activesupport (>= 4.2.0)
+      rack (>= 1.1)
+      rubocop (>= 1.7.0, < 2.0)
     ruby-progressbar (1.11.0)
     tzinfo (2.0.5)
       concurrent-ruby (~> 1.0)
     unicode-display_width (2.2.0)
 
 PLATFORMS
+  x86_64-darwin-19
   x86_64-linux
 
 DEPENDENCIES
   actionview
   minitest
   rake (~> 13.0)
   rspec (~> 3.0)
-  rubocop (~> 1.21)
+  rubocop-github
+  rubocop-performance
+  rubocop-rails
   rubocop-rails-accessibility!
 
 BUNDLED WITH

Rakefile

@@ -1,22 +1,22 @@
 # frozen_string_literal: true
 
-require 'bundler/gem_tasks'
-require 'rake/testtask'
-require 'rspec/core/rake_task'
+require "bundler/gem_tasks"
+require "rake/testtask"
+require "rspec/core/rake_task"
 
 Rake::TestTask.new
 
 RSpec::Core::RakeTask.new(:spec)
 
-require 'rubocop/rake_task'
+require "rubocop/rake_task"
 
 RuboCop::RakeTask.new
 
 task default: %i[test rubocop]
 
-desc 'Generate a new cop with a template'
+desc "Generate a new cop with a template"
 task :new_cop, [:cop] do |_task, args|
-  require 'rubocop'
+  require "rubocop"
 
   cop_name = args.fetch(:cop) do
     warn "usage: bundle exec rake 'new_cop[Department/Name]'"
@@ -27,8 +27,8 @@ task :new_cop, [:cop] do |_task, args|
 
   generator.write_source
   generator.write_spec
-  generator.inject_require(root_file_path: 'lib/rubocop-rails-accessibility.rb')
-  generator.inject_config(config_file_path: 'config/default.yml')
+  generator.inject_require(root_file_path: "lib/rubocop-rails-accessibility.rb")
+  generator.inject_config(config_file_path: "config/default.yml")
 
   puts generator.todo
 end

config/default.yml

@@ -1,6 +1,5 @@
 require:
   - rubocop/cop/rubocop_rails_accessibility_cops
-  - rubocop-performance
 
 AllCops:
   DisabledByDefault: true

lib/rubocop/cop/inject.rb

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require 'rubocop'
+require "rubocop"
 
 # The original code is from https://github.com/rubocop/rubocop-rspec/blob/main/lib/rubocop/rspec/inject.rb
 # See https://github.com/rubocop/rubocop-rspec/blob/main/MIT-LICENSE.md

lib/rubocop/cop/rubocop-rails-accessibility/image_has_alt.rb

@@ -1,14 +1,14 @@
 # frozen_string_literal: true
 
-require 'rubocop'
+require "rubocop"
 
 module RuboCop
   module Cop
     module RubocopRailsAccessibility
       class ImageHasAlt < Base
-        MSG = 'Images should have an alt prop with meaningful text or an empty string for decorative images'
+        MSG = "Images should have an alt prop with meaningful text or an empty string for decorative images"
 
-        def_node_search :has_alt_attribute?, '(sym :alt)'
+        def_node_search :has_alt_attribute?, "(sym :alt)"
 
         def on_send(node)
           receiver, method_name, = *node

lib/rubocop/cop/rubocop-rails-accessibility/link_has_href.rb

@@ -1,19 +1,19 @@
 # frozen_string_literal: true
 
-require 'rubocop'
+require "rubocop"
 
 module RuboCop
   module Cop
     module RubocopRailsAccessibility
       class LinkHasHref < Base
-        MSG = 'Links should go somewhere, you probably want to use a `<button>` instead.'
+        MSG = "Links should go somewhere, you probably want to use a `<button>` instead."
 
         def on_send(node)
           receiver, method_name, *args = *node
 
           return unless receiver.nil? && method_name == :link_to
 
-          return unless args.length == 1 || (args.length > 1 && args[1].type == :str && args[1].children.first == '#')
+          return unless args.length == 1 || (args.length > 1 && args[1].type == :str && args[1].children.first == "#")
 
           add_offense(node.loc.selector)
         end

lib/rubocop/cop/rubocop-rails-accessibility/no_positive_tabindex.rb

@@ -1,12 +1,12 @@
 # frozen_string_literal: true
 
-require 'rubocop'
+require "rubocop"
 
 module RuboCop
   module Cop
     module RubocopRailsAccessibility
       class NoPositiveTabindex < Base
-        MSG = 'Positive tabindex is error-prone and often inaccessible.'
+        MSG = "Positive tabindex is error-prone and often inaccessible."
 
         def on_send(node)
           receiver, _method_name, *args = *node

lib/rubocop/cop/rubocop-rails-accessibility/no_redundant_image_alt.rb

@@ -1,15 +1,15 @@
 # frozen_string_literal: true
 
-require 'rubocop'
+require "rubocop"
 
 module RuboCop
   module Cop
     module RubocopRailsAccessibility
       class NoRedundantImageAlt < Base
-        MSG = 'Alt prop should not contain `image` or `picture` as screen readers already announce the element as an image'
+        MSG = "Alt prop should not contain `image` or `picture` as screen readers already announce the element as an image"
         REDUNDANT_ALT_WORDS = %w[image picture].freeze
 
-        def_node_search :redundant_alt?, '(pair (sym :alt) (str #contains_redundant_alt_text?))'
+        def_node_search :redundant_alt?, "(pair (sym :alt) (str #contains_redundant_alt_text?))"
 
         def on_send(node)
           receiver, method_name, = *node

lib/rubocop/cop/rubocop_rails_accessibility_cops.rb

@@ -1,11 +1,11 @@
 # frozen_string_literal: true
 
-require 'pathname'
-require 'yaml'
+require "pathname"
+require "yaml"
 
-require_relative 'inject'
-require_relative 'version'
-require_relative 'rubocop-rails-accessibility/image_has_alt'
-require_relative 'rubocop-rails-accessibility/link_has_href'
-require_relative 'rubocop-rails-accessibility/no_positive_tabindex'
-require_relative 'rubocop-rails-accessibility/no_redundant_image_alt'
+require_relative "inject"
+require_relative "version"
+require_relative "rubocop-rails-accessibility/image_has_alt"
+require_relative "rubocop-rails-accessibility/link_has_href"
+require_relative "rubocop-rails-accessibility/no_positive_tabindex"
+require_relative "rubocop-rails-accessibility/no_redundant_image_alt"

lib/rubocop/cop/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module RubocopRailsAccessibility
-  VERSION = '0.1.0'
+  VERSION = "0.1.0"
 end

rubocop-rails-accessibility.gemspec

@@ -1,25 +1,32 @@
 # frozen_string_literal: true
 
-require_relative 'lib/rubocop/cop/version'
+require_relative "lib/rubocop/cop/version"
 
 Gem::Specification.new do |spec|
-  spec.name = 'rubocop-rails-accessibility'
+  spec.name = "rubocop-rails-accessibility"
   spec.version = RubocopRailsAccessibility::VERSION
-  spec.authors = ['dummy']
-  spec.email = ['[email protected]']
+  spec.authors = ["dummy"]
+  spec.email = ["[email protected]"]
 
-  spec.summary = 'Custom extension for RuboCop.'
-  spec.homepage = 'https://github.com/dummy/rubocop-rails-accessibility'
-  spec.license = 'MIT'
-  spec.required_ruby_version = '>= 2.6.0'
+  spec.summary = "Custom extension for RuboCop."
+  spec.homepage = "https://github.com/dummy/rubocop-rails-accessibility"
+  spec.license = "MIT"
+  spec.required_ruby_version = ">= 2.7.0"
 
-  spec.metadata['homepage_uri'] = spec.homepage
-  spec.metadata['source_code_uri'] = spec.homepage
-  spec.metadata['changelog_uri'] = "#{spec.homepage}/blob/main/CHANGELOG.md"
-  spec.metadata['rubygems_mfa_required'] = 'true'
+  spec.metadata["homepage_uri"] = spec.homepage
+  spec.metadata["source_code_uri"] = spec.homepage
+  spec.metadata["changelog_uri"] = "#{spec.homepage}/blob/main/CHANGELOG.md"
+  spec.metadata["rubygems_mfa_required"] = "true"
 
-  spec.add_development_dependency 'actionview'
-  spec.add_development_dependency 'minitest'
+  spec.add_dependency "rubocop", ">= 1.0.0"
+
+  spec.add_development_dependency "actionview"
+  spec.add_development_dependency "minitest"
+  spec.add_development_dependency "rake", "~> 13.0"
+  spec.add_development_dependency "rspec", "~> 3.0"
+  spec.add_development_dependency "rubocop-github"
+  spec.add_development_dependency "rubocop-rails"
+  spec.add_development_dependency "rubocop-performance"
 
   # Specify which files should be added to the gem when it is released.
   # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
@@ -28,9 +35,7 @@ Gem::Specification.new do |spec|
       (f == __FILE__) || f.match(%r{\A(?:(?:bin|test|spec|features)/|\.(?:git|travis|circleci)|appveyor)})
     end
   end
-  spec.bindir = 'exe'
+  spec.bindir = "exe"
   spec.executables = spec.files.grep(%r{\Aexe/}) { |f| File.basename(f) }
-  spec.require_paths = ['lib']
-
-  spec.add_runtime_dependency 'rubocop'
+  spec.require_paths = ["lib"]
 end

test/cop_test.rb

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
-require 'action_view'
-require 'minitest'
+require "action_view"
+require "minitest"
 
 class CopTest < MiniTest::Test
   def cop_class

test/test_image_has_alt.rb

@@ -1,25 +1,26 @@
 # frozen_string_literal: true
 
-require_relative './cop_test'
-require 'minitest/autorun'
-require 'rubocop/cop/rubocop-rails-accessibility/image_has_alt'
+require_relative "./cop_test"
+require "minitest/autorun"
+require "rubocop/cop/rubocop-rails-accessibility/image_has_alt"
 
 class TestImageHasAlt < CopTest
   def cop_class
     RuboCop::Cop::RubocopRailsAccessibility::ImageHasAlt
   end
 
   def test_image_has_alt_offense
-    offenses = erb_investigate cop, <<-ERB, 'app/views/products/index.html.erb'
+    offenses = erb_investigate cop, <<-ERB, "app/views/products/index.html.erb"
       <%= image_tag "spinners/octocat-spinner-16px.gif", size: "12x12" %>
     ERB
 
     assert_equal 1, offenses.count
-    assert_equal 'Images should have an alt prop with meaningful text or an empty string for decorative images', offenses[0].message
+    assert_equal "Images should have an alt prop with meaningful text or an empty string for decorative images",
+                 offenses[0].message
   end
 
   def test_image_has_alt_no_offense
-    offenses = erb_investigate cop, <<-ERB, 'app/views/products/index.html.erb'
+    offenses = erb_investigate cop, <<-ERB, "app/views/products/index.html.erb"
       <%= image_tag "spinners/octocat-spinner-16px.gif", size: "12x12", alt: "GitHub Logo spinner" %>
     ERB