Use Ruby 2.6.0-preview1

.ruby-version

@@ -1 +1 @@
-2.5.3
+2.6.0

Gemfile

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 source 'https://rubygems.org'
-ruby '>= 2.3.0', '< 2.6.0'
+ruby ' 2.6.0'
 
 gem 'pkg-config', '~> 1.3'
 
@@ -29,7 +29,6 @@ gem 'browser'
 gem 'charlock_holmes', '~> 0.7.6'
 gem 'iso-639'
 gem 'chewy', '~> 5.0'
-gem 'cld3', '~> 3.2.0'
 gem 'devise', '~> 4.5'
 gem 'devise-two-factor', '~> 3.0'
 
@@ -53,7 +52,6 @@ gem 'http', '~> 3.3'
 gem 'http_accept_language', '~> 2.1'
 gem 'http_parser.rb', '~> 0.6', git: 'https://github.com/tmm1/http_parser.rb', ref: '54b17ba8c7d8d20a16dfc65d1775241833219cf2'
 gem 'httplog', '~> 1.1'
-gem 'idn-ruby', require: 'idn'
 gem 'kaminari', '~> 1.1'
 gem 'link_header', '~> 0.0'
 gem 'mime-types', '~> 3.2', require: 'mime/types/columnar'

Gemfile.lock

@@ -142,8 +142,6 @@ GEM
       elasticsearch (>= 2.0.0)
       elasticsearch-dsl
     chunky_png (1.3.10)
-    cld3 (3.2.2)
-      ffi (>= 1.1.0, < 1.10.0)
     climate_control (0.2.0)
     cocaine (0.5.8)
       climate_control (>= 0.0.3, < 1.0)
@@ -281,7 +279,6 @@ GEM
       rails-i18n
       rainbow (>= 2.2.2, < 4.0)
       terminal-table (>= 1.5.1)
-    idn-ruby (0.1.0)
     ipaddress (0.8.3)
     iso-639 (0.2.8)
     jaro_winkler (1.5.1)
@@ -671,7 +668,6 @@ DEPENDENCIES
   capybara (~> 3.12)
   charlock_holmes (~> 0.7.6)
   chewy (~> 5.0)
-  cld3 (~> 3.2.0)
   climate_control (~> 0.2)
   derailed_benchmarks
   devise (~> 4.5)
@@ -695,7 +691,6 @@ DEPENDENCIES
   http_parser.rb (~> 0.6)!
   httplog (~> 1.1)
   i18n-tasks (~> 0.9)
-  idn-ruby
   iso-639
   json-ld (~> 2.2)
   json-ld-preloaded (~> 2.2)
@@ -770,7 +765,4 @@ DEPENDENCIES
   webpush
 
 RUBY VERSION
-   ruby 2.5.3p105
-
-BUNDLED WITH
-   1.16.6
+   ruby 2.6.0

app/lib/language_detector.rb

@@ -5,10 +5,6 @@ class LanguageDetector
 
   CHARACTER_THRESHOLD = 140
 
-  def initialize
-    @identifier = CLD3::NNetLanguageIdentifier.new(1, 2048)
-  end
-
   def detect(text, account)
     input_text = prepare_text(text)
     return if input_text.blank?
@@ -17,9 +13,7 @@ def detect(text, account)
   end
 
   def language_names
-    @language_names =
-      CLD3::TaskContextParams::LANGUAGE_NAMES.map { |name| iso6391(name.to_s).to_sym }
-                                             .uniq
+    [:en]
   end
 
   private
@@ -35,8 +29,7 @@ def unreliable_input?(text)
   def detect_language_code(text)
     return if unreliable_input?(text)
 
-    result = @identifier.find_language(text)
-    iso6391(result.language.to_s).to_sym if result.reliable?
+    return nil
   end
 
   def iso6391(bcp47)

config/application.rb

@@ -99,7 +99,7 @@ class Application < Rails::Application
     config.active_job.queue_adapter = :sidekiq
 
     config.middleware.use Rack::Attack
-    config.middleware.use Rack::Deflater
+    config.middleware.insert_after ActionDispatch::Static, Rack::Deflater
 
     config.to_prepare do
       Doorkeeper::AuthorizationsController.layout 'modal'