FIX: Ensure 100-logster initializer is run before 101-lograge (#12455)

The logster initializer tries to adds RailsMultisite::Formatter to the STDOUT logger. In production, the lograge initializer then removes the RailsMultisite:Formatter because the JSON log will include the database.

e10a74694a used `Rails.application.reloader.to_prepare` to defer running the 100-logster initializer, which meant it ran **after** 101-lograge. This meant that we were writing JSON logs with a non-json text prefix.

The `to_prepare` was added because our freedom-patches are now deferred using `to_prepare`, and some initializers were relying on the freedom patches. However, following 1533cbb38b, we decided to load the RailsMultisite freedom patch without `to_prepare`. Therefore, `005-site_settings` and `100-logster` no longer need to use `to_prepare`. Removing it means that these initializers are back to running in sequential order, and the logging issue will be resolved.

The only remaining initializer which depends on freedom patches is `100-i18n`. I've added a comment to explain why.

config/initializers/005-site_settings.rb

@@ -16,8 +16,7 @@ if GlobalSetting.skip_redis?
   return
 end
 
-Rails.application.reloader.to_prepare do
+reload_settings = lambda {
-  reload_settings = lambda {
   RailsMultisite::ConnectionManagement.safe_each_connection do
     begin
       SiteSetting.refresh!
@@ -29,13 +28,12 @@ Rails.application.reloader.to_prepare do
       # This will happen when migrating a new database
     end
   end
-  }
+}
 
-  reload_settings.call
+reload_settings.call
 
-  if !Rails.configuration.cache_classes
+if !Rails.configuration.cache_classes
   ActiveSupport::Reloader.to_prepare do
     reload_settings.call
   end
-  end
 end

config/initializers/100-i18n.rb

@@ -5,6 +5,7 @@
 require 'i18n/backend/discourse_i18n'
 require 'i18n/backend/fallback_locale_list'
 
+# Requires the `translate_accelerator.rb` freedom patch to be loaded
 Rails.application.reloader.to_prepare do
   I18n.backend = I18n::Backend::DiscourseI18n.new
   I18n.fallbacks = I18n::Backend::FallbackLocaleList.new

config/initializers/100-logster.rb

@@ -9,17 +9,16 @@ if GlobalSetting.skip_redis?
   return
 end
 
-Rails.application.reloader.to_prepare do
+if Rails.env.development? && RUBY_VERSION.match?(/^2\.5\.[23]/)
-  if Rails.env.development? && RUBY_VERSION.match?(/^2\.5\.[23]/)
   STDERR.puts "WARNING: Discourse development environment runs slower on Ruby 2.5.3 or below"
   STDERR.puts "We recommend you upgrade to Ruby 2.6.1 for the optimal development performance"
 
   # we have to used to older and slower version of the logger cause the new one exposes a Ruby bug in
   # the Queue class which causes segmentation faults
   Logster::Scheduler.disable
-  end
+end
 
-  if Rails.env.development? && !Sidekiq.server? && ENV["RAILS_LOGS_STDOUT"] == "1"
+if Rails.env.development? && !Sidekiq.server? && ENV["RAILS_LOGS_STDOUT"] == "1"
   console = ActiveSupport::Logger.new(STDOUT)
   original_logger = Rails.logger.chained.first
   console.formatter = original_logger.formatter
@@ -28,9 +27,9 @@ Rails.application.reloader.to_prepare do
   unless ActiveSupport::Logger.logger_outputs_to?(original_logger, STDOUT)
     original_logger.extend(ActiveSupport::Logger.broadcast(console))
   end
-  end
+end
 
-  if Rails.env.production?
+if Rails.env.production?
   Logster.store.ignore = [
     # honestly, Rails should not be logging this, its real noisy
     /^ActionController::RoutingError \(No route matches/,
@@ -82,24 +81,24 @@ Rails.application.reloader.to_prepare do
     /^Creating scope :open\. Overwriting existing method Poll\.open\./,
   ]
   Logster.config.env_expandable_keys.push(:hostname, :problem_db)
-  end
+end
 
-  Logster.store.max_backlog = GlobalSetting.max_logster_logs
+Logster.store.max_backlog = GlobalSetting.max_logster_logs
 
-  # TODO logster should be able to do this automatically
+# TODO logster should be able to do this automatically
-  Logster.config.subdirectory = "#{GlobalSetting.relative_url_root}/logs"
+Logster.config.subdirectory = "#{GlobalSetting.relative_url_root}/logs"
 
-  Logster.config.application_version = Discourse.git_version
+Logster.config.application_version = Discourse.git_version
-  Logster.config.enable_custom_patterns_via_ui = true
+Logster.config.enable_custom_patterns_via_ui = true
-  Logster.config.enable_js_error_reporting = GlobalSetting.enable_js_error_reporting
+Logster.config.enable_js_error_reporting = GlobalSetting.enable_js_error_reporting
 
-  store = Logster.store
+store = Logster.store
-  redis = Logster.store.redis
+redis = Logster.store.redis
-  store.redis_prefix = Proc.new { redis.namespace }
+store.redis_prefix = Proc.new { redis.namespace }
-  store.redis_raw_connection = redis.without_namespace
+store.redis_raw_connection = redis.without_namespace
-  severities = [Logger::WARN, Logger::ERROR, Logger::FATAL, Logger::UNKNOWN]
+severities = [Logger::WARN, Logger::ERROR, Logger::FATAL, Logger::UNKNOWN]
 
-  RailsMultisite::ConnectionManagement.each_connection do
+RailsMultisite::ConnectionManagement.each_connection do
   error_rate_per_minute = SiteSetting.alert_admins_if_errors_per_minute rescue 0
 
   if (error_rate_per_minute || 0) > 0
@@ -129,24 +128,23 @@ Rails.application.reloader.to_prepare do
                         )
     end
   end
-  end
+end
 
-  if Rails.configuration.multisite
+if Rails.configuration.multisite
   if Rails.logger.respond_to? :chained
     chained = Rails.logger.chained
     chained && chained.first.formatter = RailsMultisite::Formatter.new
   end
-  end
+end
 
-  Logster.config.project_directories = [
+Logster.config.project_directories = [
   { path: Rails.root.to_s, url: "https://github.com/discourse/discourse", main_app: true }
-  ]
+]
-  Discourse.plugins.each do |plugin|
+Discourse.plugins.each do |plugin|
   next if !plugin.metadata.url
 
   Logster.config.project_directories << {
     path: "#{Rails.root.to_s}/plugins/#{plugin.directory_name}",
     url: plugin.metadata.url
   }
-  end
 end