rubocop

.github/workflows/actions.yml

@@ -9,7 +9,11 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby: [ '2.5', '2.6', '2.7', '3.0', '3.1' ]
+        ruby: [ '3.0', '3.1', '3.2', '3.3' ]
+        task: [ 'spec' ]
+        include:
+        - ruby: '3.0' # keep in sync with rubocop.yml and gemspec
+          task: 'rubocop'
     name: ${{ matrix.ruby }} rake
     steps:
     - uses: actions/checkout@v2

.rubocop.yml

@@ -0,0 +1,110 @@
+require:
+- rubocop-rake
+- rubocop-rspec
+
+AllCops:
+  NewCops: enable
+  TargetRubyVersion: 3.0 # keep in sync with gemspec and actions.yml
+
+Style/StringLiterals:
+  Enabled: false
+
+Bundler/OrderedGems:
+  Enabled: false
+
+Metrics:
+  Enabled: false
+
+Style/Documentation:
+  Enabled: false
+
+Layout/EmptyLineAfterMagicComment:
+  Enabled: false
+
+Layout/EndAlignment:
+  EnforcedStyleAlignWith: variable
+
+Layout/MultilineOperationIndentation:
+  Enabled: false
+
+Layout/MultilineMethodCallIndentation:
+  EnforcedStyle: indented
+
+Style/NumericPredicate:
+  EnforcedStyle: comparison
+
+Layout/EmptyLineAfterGuardClause:
+  Enabled: false
+
+Layout/FirstHashElementLineBreak:
+  Enabled: true # Opt-in
+
+# Opt-in
+Layout/FirstMethodArgumentLineBreak:
+  Enabled: true # Opt-in
+
+Layout/FirstMethodParameterLineBreak:
+  Enabled: true # Opt-in
+
+# https://github.com/rubocop-hq/rubocop/issues/5891
+Style/SpecialGlobalVars:
+  Enabled: false
+
+Style/WordArray:
+  EnforcedStyle: brackets
+
+Style/SymbolArray:
+  EnforcedStyle: brackets
+
+Style/GuardClause:
+  Enabled: false
+
+Style/EmptyElse:
+  Enabled: false
+
+RSpec/DescribedClass:
+  EnforcedStyle: explicit
+
+Style/DoubleNegation:
+  Enabled: false
+
+RSpec/VerifiedDoubles:
+  Enabled: false
+
+RSpec/ExampleLength:
+  Enabled: false
+
+Style/CombinableLoops:
+  Enabled: false
+
+Lint/Void:
+  Enabled: false
+
+Security/MarshalLoad:
+  Enabled: false
+
+Lint/EmptyBlock:
+  Exclude: [spec/**/*.rb]
+
+Naming/MethodParameterName:
+  Exclude: [spec/**/*.rb]
+
+RSpec/BeforeAfterAll:
+  Enabled: false
+
+# could change to `#method` and `.method` instead
+RSpec/DescribeSymbol:
+  Enabled: false
+
+RSpec/NestedGroups:
+  Enabled: false
+
+RSpec/EmptyExampleGroup:
+  Enabled: false
+
+Lint/SuppressedException:
+  Enabled: false
+
+# somehow crashes
+RSpec/VariableName:
+  Enabled: false

Gemfile

@@ -1,6 +1,10 @@
+# frozen_string_literal: true
 source 'https://rubygems.org'
 gemspec
 
 gem 'bump'
 gem 'rake'
 gem 'rspec', '~>3.0'
+gem 'rubocop'
+gem 'rubocop-rake'
+gem 'rubocop-rspec'

Gemfile.lock

@@ -7,9 +7,21 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
+    ast (2.4.2)
     bump (0.10.0)
     diff-lcs (1.4.4)
+    json (2.7.2)
+    language_server-protocol (3.17.0.3)
+    parallel (1.26.3)
+    parser (3.3.4.2)
+      ast (~> 2.4.1)
+      racc
+    racc (1.8.1)
+    rainbow (3.1.1)
     rake (13.0.6)
+    regexp_parser (2.9.2)
+    rexml (3.3.6)
+      strscan
     rspec (3.10.0)
       rspec-core (~> 3.10.0)
       rspec-expectations (~> 3.10.0)
@@ -23,7 +35,27 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.10.0)
     rspec-support (3.10.3)
+    rubocop (1.65.1)
+      json (~> 2.3)
+      language_server-protocol (>= 3.17.0)
+      parallel (~> 1.10)
+      parser (>= 3.3.0.2)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 2.4, < 3.0)
+      rexml (>= 3.2.5, < 4.0)
+      rubocop-ast (>= 1.31.1, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 3.0)
+    rubocop-ast (1.32.1)
+      parser (>= 3.3.1.0)
+    rubocop-rake (0.6.0)
+      rubocop (~> 1.0)
+    rubocop-rspec (2.9.0)
+      rubocop (~> 1.19)
+    ruby-progressbar (1.13.0)
     simple_po_parser (1.1.6)
+    strscan (3.1.0)
+    unicode-display_width (2.5.0)
 
 PLATFORMS
   ruby
@@ -36,6 +68,9 @@ DEPENDENCIES
   i18n_data!
   rake
   rspec (~> 3.0)
+  rubocop
+  rubocop-rake
+  rubocop-rspec
 
 BUNDLED WITH
    2.3.12

Rakefile

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'bundler/setup'
 require 'bundler/gem_tasks'
 require 'bump/tasks'
@@ -6,57 +7,61 @@ require 'yaml'
 $LOAD_PATH << "lib"
 require 'i18n_data'
 
-task default: [:spec]
+task default: [:spec, :rubocop]
 
+desc "Run tests"
 task :spec do
   sh "rspec --warnings spec/"
 end
 
+desc "Rubocop"
+task :rubocop do
+  sh "rubocop --parallel"
+end
+
 desc "write all languages to output"
 task :all_languages do
-  I18nData.languages.keys.each do |lc|
+  I18nData.languages.each_key do |lc|
     `rake languages LANGUAGE=#{lc}`
   end
 end
 
 desc "write languages to output/languages_{language}"
 task :languages do
-  raise unless language = ENV['LANGUAGE']
+  raise unless (language = ENV.fetch('LANGUAGE', nil))
   `mkdir -p output`
   data = I18nData.languages(language.upcase)
   File.write "output/languages_#{language.downcase}.yml", data.to_yaml
 end
 
 desc "write all countries to output to debug"
 task :all_countries do
-  I18nData.languages.keys.each do |lc|
+  I18nData.languages.each_key do |lc|
     `rake countries LANGUAGE=#{lc}`
   end
 end
 
 desc "write countries to output/countries_{language} to debug"
 task :countries do
-  raise unless language = ENV['LANGUAGE']
+  raise unless (language = ENV.fetch('LANGUAGE', nil))
   `mkdir -p output`
   data = I18nData.countries(language.upcase)
-  File.open("output/countries_#{language.downcase}.yml",'w') {|f|f.puts data.to_yaml}
+  File.open("output/countries_#{language.downcase}.yml", 'w') { |f| f.puts data.to_yaml }
 end
 
 desc "write example output, just to show off :D"
 task :example_output do
   `mkdir -p example_output`
 
-  #all names for germany, france, united kingdom and unites states
-  ['DE','FR','GB','US'].each do |cc|
+  # all names for germany, france, united kingdom and unites states
+  ['DE', 'FR', 'GB', 'US'].each do |cc|
     names = I18nData.languages.keys.map do |lc|
-      begin
-        [I18nData.countries(lc)[cc], I18nData.languages[lc]]
-      rescue I18nData::NoTranslationAvailable
-        nil
-      end
+      [I18nData.countries(lc)[cc], I18nData.languages[lc]]
+    rescue I18nData::NoTranslationAvailable
+      nil
     end
-    File.open("example_output/all_names_for_#{cc}.txt",'w') do |f|
-      f.puts names.reject(&:nil?).map{|x|x*" ---- "} * "\n"
+    File.open("example_output/all_names_for_#{cc}.txt", 'w') do |f|
+      f.puts names.compact.map { |x| x * " ---- " } * "\n"
     end
   end
 end
@@ -66,7 +71,7 @@ task :stats do
   dir = "cache/file_data_provider"
   [:languages, :countries].each do |type|
     files = FileList["#{dir}/#{type}*"]
-    lines = File.readlines(files.first).reject{|l|l.empty?}
+    lines = File.readlines(files.first).reject(&:empty?)
     puts "#{lines.size} #{type} in #{files.size} languages"
   end
 end

i18n_data.gemspec

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 name = "i18n_data"
 require "./lib/#{name}/version"
 
@@ -8,6 +9,6 @@ Gem::Specification.new name, I18nData::VERSION do |s|
   s.homepage = "https://github.com/grosser/#{name}"
   s.files = `git ls-files lib cache `.split("\n")
   s.license = "MIT"
-  s.required_ruby_version = '>= 2.5.0'
-  s.add_runtime_dependency 'simple_po_parser', '~> 1.1'
+  s.required_ruby_version = '>= 3.0.0' # keep in sync with rubocop.yml and actions.yml
+  s.add_dependency 'simple_po_parser', '~> 1.1'
 end

lib/i18n_data.rb

@@ -1,7 +1,7 @@
+# frozen_string_literal: true
 require 'i18n_data/version'
 
 module I18nData
-
   class BaseException < StandardError
     def to_s
       "#{self.class} -- #{super}"
@@ -13,13 +13,13 @@ class AccessDenied < BaseException; end
   class Unknown < BaseException; end
 
   class << self
-    def languages(language_code='EN')
+    def languages(language_code = 'EN')
       fetch :languages, language_code do
         data_provider.codes(:languages, normal_to_region_code(language_code.to_s.upcase))
       end
     end
 
-    def countries(language_code='EN')
+    def countries(language_code = 'EN')
       fetch :countries, language_code do
         data_provider.codes(:countries, normal_to_region_code(language_code.to_s.upcase))
       end
@@ -34,10 +34,10 @@ def language_code(name)
     end
 
     def data_provider
-      @data_provider ||= (
+      @data_provider ||= begin
         require 'i18n_data/file_data_provider'
         FileDataProvider
-      )
+      end
     end
 
     def data_provider=(provider)
@@ -57,15 +57,15 @@ def fetch(type, language_code)
     def normal_to_region_code(normal)
       {
         "ZH" => "zh_CN",
-        "BN" => "bn_IN",
+        "BN" => "bn_IN"
       }[normal] || normal
     end
 
     def recognise_code(type, search)
       search = search.strip
 
       # common languages first <-> faster in majority of cases
-      language_codes = ['EN','ES','FR','DE','ZH'] | available_language_codes
+      language_codes = ['EN', 'ES', 'FR', 'DE', 'ZH'] | available_language_codes
 
       language_codes.each do |language_code|
         options =
@@ -88,8 +88,8 @@ def recognise_code(type, search)
     # NOTE: this is not perfect since the used provider might have more or less languages available
     # but it's better than just using the available english language codes
     def available_language_codes
-      @available_languges ||= begin
-        files = Dir[File.expand_path("../../cache/file_data_provider/languages-*", __FILE__)]
+      @available_language_codes ||= begin
+        files = Dir[File.expand_path('../cache/file_data_provider/languages-*', __dir__)]
         files.map! { |f| f[/languages-(.*)\./, 1] }
       end
     end