Moving Salmon notifications to background processing, fixing mini-profiler

behaviour with Turbolinks enabled, optimizing Rabl for production

Gemfile

@@ -51,6 +51,7 @@ end
 group :test do
   gem 'simplecov', require: false
   gem 'webmock'
+  gem 'rspec-sidekiq'
 end
 
 group :development do
@@ -59,6 +60,8 @@ group :development do
   gem 'better_errors'
   gem 'binding_of_caller'
   gem 'letter_opener'
+  gem 'bullet'
+  gem 'memory_profiler'
 end
 
 group :production do

Gemfile.lock

@@ -47,6 +47,9 @@ GEM
     binding_of_caller (0.7.2)
       debug_inspector (>= 0.0.1)
     builder (3.2.2)
+    bullet (5.0.0)
+      activesupport (>= 3.0.0)
+      uniform_notifier (~> 1.9.0)
     climate_control (0.0.3)
       activesupport (>= 3.0)
     cocaine (0.5.8)
@@ -139,6 +142,7 @@ GEM
       nokogiri (>= 1.5.9)
     mail (2.6.3)
       mime-types (>= 1.16, < 3)
+    memory_profiler (0.9.6)
     method_source (0.8.2)
     mime-types (2.99.1)
     mimemagic (0.3.0)
@@ -252,6 +256,9 @@ GEM
       rspec-expectations (~> 3.4.0)
       rspec-mocks (~> 3.4.0)
       rspec-support (~> 3.4.0)
+    rspec-sidekiq (2.2.0)
+      rspec (~> 3.0, >= 3.0.0)
+      sidekiq (>= 2.4.0)
     rspec-support (3.4.1)
     rubocop (0.38.0)
       parser (>= 2.3.0.6, < 3.0)
@@ -316,6 +323,7 @@ GEM
       unf_ext
     unf_ext (0.0.7.2)
     unicode-display_width (1.0.2)
+    uniform_notifier (1.9.0)
     warden (1.2.6)
       rack (>= 1.0)
     web-console (2.3.0)
@@ -336,6 +344,7 @@ DEPENDENCIES
   addressable
   better_errors
   binding_of_caller
+  bullet
   coffee-rails (~> 4.1.0)
   devise
   doorkeeper
@@ -352,6 +361,7 @@ DEPENDENCIES
   jbuilder (~> 2.0)
   jquery-rails
   letter_opener
+  memory_profiler
   nokogiri
   oj
   onebox
@@ -370,6 +380,7 @@ DEPENDENCIES
   rails_autolink
   redis (~> 3.2)
   rspec-rails
+  rspec-sidekiq
   rubocop
   sass-rails (~> 5.0)
   sdoc (~> 0.4.0)

app/assets/javascripts/profiler.coffee

@@ -1,2 +1,5 @@
+$ ->
   $(document).on 'turbolinks:load', ->
-  window.MiniProfiler.pageTransition() unless typeof window.MiniProfiler == 'undefined'
+    unless typeof window.MiniProfiler == 'undefined'
+      window.MiniProfiler.init()
+      window.MiniProfiler.pageTransition()

app/controllers/auth/registrations_controller.rb

@@ -16,7 +16,7 @@ class Auth::RegistrationsController < Devise::RegistrationsController
     end
   end
 
-  def after_sign_up_path_for(resource)
+  def after_sign_up_path_for(_resource)
     root_path
   end
 end

app/models/status.rb

@@ -17,7 +17,7 @@ class Status < ActiveRecord::Base
   validates :text, presence: true, if: Proc.new { |s| s.local? && !s.reblog? }
 
   scope :with_counters, -> { select('statuses.*, (select count(r.id) from statuses as r where r.reblog_of_id = statuses.id) as reblogs_count, (select count(f.id) from favourites as f where f.status_id = statuses.id) as favourites_count') }
-  scope :with_includes, -> { includes(:account, :mentions, :stream_entry, reblog: [:account, :mentions], thread: [:account, :mentions]) }
+  scope :with_includes, -> { includes(:account, :mentions, :stream_entry, reblog: [:account, :mentions], thread: :account) }
 
   def local?
     self.uri.nil?

app/services/favourite_service.rb

@@ -10,15 +10,9 @@ class FavouriteService < BaseService
     if status.local?
       NotificationMailer.favourite(status, account).deliver_later
     else
-      send_interaction_service.(favourite.stream_entry, status.account)
+      NotificationWorker.perform_async(favourite.stream_entry.id, status.account_id)
     end
 
     favourite
   end
-
-  private
-
-  def send_interaction_service
-    @send_interaction_service ||= SendInteractionService.new
-  end
 end

app/services/follow_service.rb

@@ -8,7 +8,7 @@ class FollowService < BaseService
     return nil if target_account.nil?
 
     follow = source_account.follow!(target_account)
-    send_interaction_service.(follow.stream_entry, target_account)
+    NotificationWorker.perform_async(follow.stream_entry.id, target_account.id)
     source_account.ping!(account_url(source_account, format: 'atom'), [Rails.configuration.x.hub_url])
     follow
   end
@@ -18,8 +18,4 @@ class FollowService < BaseService
   def follow_remote_account_service
     @follow_remote_account_service ||= FollowRemoteAccountService.new
   end
-
-  def send_interaction_service
-    @send_interaction_service ||= SendInteractionService.new
-  end
 end

app/services/process_mentions_service.rb

@@ -24,7 +24,7 @@ class ProcessMentionsService < BaseService
       if mentioned_account.local?
         NotificationMailer.mention(mentioned_account, status).deliver_later
       else
-        send_interaction_service.(status.stream_entry, mentioned_account)
+        NotificationWorker.perform_async(status.stream_entry.id, mentioned_account.id)
       end
     end
   end
@@ -34,8 +34,4 @@ class ProcessMentionsService < BaseService
   def follow_remote_account_service
     @follow_remote_account_service ||= FollowRemoteAccountService.new
   end
-
-  def send_interaction_service
-    @send_interaction_service ||= SendInteractionService.new
-  end
 end

app/services/reblog_service.rb

@@ -5,13 +5,13 @@ class ReblogService < BaseService
   # @return [Status]
   def call(account, reblogged_status)
     reblog = account.statuses.create!(reblog: reblogged_status, text: '')
-    fan_out_on_write_service.(reblog)
+    DistributionWorker.perform_async(reblog.id)
     account.ping!(account_url(account, format: 'atom'), [Rails.configuration.x.hub_url])
 
     if reblogged_status.local?
       NotificationMailer.reblog(reblogged_status, account).deliver_later
     else
-      send_interaction_service.(reblog.stream_entry, reblogged_status.account)
+      NotificationWorker.perform_async(reblog.stream_entry.id, reblogged_status.account_id)
     end
 
     reblog
@@ -22,8 +22,4 @@ class ReblogService < BaseService
   def send_interaction_service
     @send_interaction_service ||= SendInteractionService.new
   end
-
-  def fan_out_on_write_service
-    @fan_out_on_write_service ||= FanOutOnWriteService.new
-  end
 end

app/services/unfollow_service.rb

@@ -4,12 +4,6 @@ class UnfollowService < BaseService
   # @param [Account] target_account Which to unfollow
   def call(source_account, target_account)
     follow = source_account.unfollow!(target_account)
-    send_interaction_service.(follow.stream_entry, target_account) unless target_account.local?
+    NotificationWorker.perform_async(follow.stream_entry.id, target_account.id) unless target_account.local?
-  end
-
-  private
-
-  def send_interaction_service
-    @send_interaction_service ||= SendInteractionService.new
   end
 end

app/workers/notification_worker.rb

@@ -0,0 +1,7 @@
+class NotificationWorker
+  include Sidekiq::Worker
+
+  def perform(stream_entry_id, target_account_id)
+    SendInteractionService.new.(StreamEntry.find(stream_entry_id), Account.find(target_account_id))
+  end
+end

config/environments/development.rb

@@ -40,4 +40,10 @@ Rails.application.configure do
   # config.action_view.raise_on_missing_translations = true
 
   config.action_mailer.delivery_method = :letter_opener
+
+  config.after_initialize do
+    Bullet.enable = true
+    Bullet.bullet_logger = true
+    Bullet.rails_logger = true
+  end
 end

config/environments/production.rb

@@ -55,7 +55,7 @@ Rails.application.configure do
   # config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new)
 
   # Use a different cache store in production.
-  # config.cache_store = :mem_cache_store
+  config.cache_store = :memory_store, size: 128.megabytes
 
   # Enable serving of images, stylesheets, and JavaScripts from an asset server.
   # config.action_controller.asset_host = 'http://assets.example.com'

config/initializers/rabl_init.rb

@@ -1,3 +1,6 @@
 Rabl.configure do |config|
+  config.cache_all_output  = true
+  config.cache_sources     = !!Rails.env.production?
   config.include_json_root = false
+  config.view_paths        = [Rails.root.join('app/views')]
 end

spec/rails_helper.rb

@@ -9,6 +9,7 @@ require 'webmock/rspec'
 
 ActiveRecord::Migration.maintain_test_schema!
 WebMock.disable_net_connect!
+Sidekiq::Testing.inline!
 
 RSpec.configure do |config|
   config.fixture_path = "#{::Rails.root}/spec/fixtures"
@@ -20,6 +21,10 @@ RSpec.configure do |config|
   config.include Devise::TestHelpers, type: :view
 end
 
+RSpec::Sidekiq.configure do |config|
+  config.warn_when_jobs_not_processed_by_sidekiq = false
+end
+
 def request_fixture(name)
   File.read(File.join(Rails.root, 'spec', 'fixtures', 'requests', name))
 end