# HG changeset patch
# User nanaya <me@nanaya.pro>
# Date 1571728650 -32400
# Node ID fd3078b4d355ac7542c165779bdad6cd2afcfc9e
# Parent  722f4eccd370db31a4b7031afd21bc05e69531cc
Update to latest rails

diff -r 722f4eccd370 -r fd3078b4d355 Gemfile
--- a/Gemfile	Fri May 31 09:10:37 2019 +0900
+++ b/Gemfile	Tue Oct 22 16:17:30 2019 +0900
@@ -1,6 +1,6 @@
 source "https://rubygems.org"
 
-gem "rails", "~> 5.2.0"
+gem "rails", "~> 6.0.0"
 gem "jquery-rails"
 gem "coffee-rails"
 gem "bootstrap-sass"
diff -r 722f4eccd370 -r fd3078b4d355 Gemfile.lock
--- a/Gemfile.lock	Fri May 31 09:10:37 2019 +0900
+++ b/Gemfile.lock	Tue Oct 22 16:17:30 2019 +0900
@@ -2,54 +2,67 @@
   remote: https://rubygems.org/
   remote: https://rails-assets.org/
   specs:
-    actioncable (5.2.3)
-      actionpack (= 5.2.3)
+    actioncable (6.0.0)
+      actionpack (= 6.0.0)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
-    actionmailer (5.2.3)
-      actionpack (= 5.2.3)
-      actionview (= 5.2.3)
-      activejob (= 5.2.3)
+    actionmailbox (6.0.0)
+      actionpack (= 6.0.0)
+      activejob (= 6.0.0)
+      activerecord (= 6.0.0)
+      activestorage (= 6.0.0)
+      activesupport (= 6.0.0)
+      mail (>= 2.7.1)
+    actionmailer (6.0.0)
+      actionpack (= 6.0.0)
+      actionview (= 6.0.0)
+      activejob (= 6.0.0)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (5.2.3)
-      actionview (= 5.2.3)
-      activesupport (= 5.2.3)
+    actionpack (6.0.0)
+      actionview (= 6.0.0)
+      activesupport (= 6.0.0)
       rack (~> 2.0)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.2.3)
-      activesupport (= 5.2.3)
+      rails-html-sanitizer (~> 1.0, >= 1.2.0)
+    actiontext (6.0.0)
+      actionpack (= 6.0.0)
+      activerecord (= 6.0.0)
+      activestorage (= 6.0.0)
+      activesupport (= 6.0.0)
+      nokogiri (>= 1.8.5)
+    actionview (6.0.0)
+      activesupport (= 6.0.0)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activejob (5.2.3)
-      activesupport (= 5.2.3)
+      rails-html-sanitizer (~> 1.1, >= 1.2.0)
+    activejob (6.0.0)
+      activesupport (= 6.0.0)
       globalid (>= 0.3.6)
-    activemodel (5.2.3)
-      activesupport (= 5.2.3)
-    activerecord (5.2.3)
-      activemodel (= 5.2.3)
-      activesupport (= 5.2.3)
-      arel (>= 9.0)
-    activerecord-jdbc-adapter (52.2-java)
-      activerecord (~> 5.2.0)
-    activerecord-jdbcpostgresql-adapter (52.2-java)
-      activerecord-jdbc-adapter (= 52.2)
+    activemodel (6.0.0)
+      activesupport (= 6.0.0)
+    activerecord (6.0.0)
+      activemodel (= 6.0.0)
+      activesupport (= 6.0.0)
+    activerecord-jdbc-adapter (50.0)
+      activerecord (>= 2.2)
+    activerecord-jdbcpostgresql-adapter (50.0)
+      activerecord-jdbc-adapter (~> 50.0)
       jdbc-postgres (>= 9.4, < 43)
-    activestorage (5.2.3)
-      actionpack (= 5.2.3)
-      activerecord (= 5.2.3)
+    activestorage (6.0.0)
+      actionpack (= 6.0.0)
+      activejob (= 6.0.0)
+      activerecord (= 6.0.0)
       marcel (~> 0.3.1)
-    activesupport (5.2.3)
+    activesupport (6.0.0)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    arel (9.0.0)
-    autoprefixer-rails (9.5.1.1)
+      zeitwerk (~> 2.1, >= 2.1.8)
+    autoprefixer-rails (9.6.5)
       execjs
     bootstrap-sass (3.4.1)
       autoprefixer-rails (>= 5.2.1)
@@ -63,22 +76,22 @@
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.1.5)
-    crass (1.0.4)
-    erubi (1.8.0)
+    crass (1.0.5)
+    erubi (1.9.0)
     execjs (2.7.0)
     ffi (1.11.1)
     ffi (1.11.1-java)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
-    i18n (1.6.0)
+    i18n (1.7.0)
       concurrent-ruby (~> 1.0)
-    jdbc-postgres (42.1.4)
-    jquery-rails (4.3.3)
+    jdbc-postgres (42.2.6)
+    jquery-rails (4.3.5)
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
     jruby-openssl (0.10.2-java)
-    loofah (2.2.3)
+    loofah (2.3.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -87,88 +100,86 @@
       mimemagic (~> 0.3.2)
     method_source (0.9.2)
     mimemagic (0.3.3)
-    mini_mime (1.0.1)
+    mini_mime (1.0.2)
     mini_portile2 (2.4.0)
-    minitest (5.11.3)
-    newrelic_rpm (6.4.0.356)
-    nio4r (2.3.1)
-    nio4r (2.3.1-java)
-    nokogiri (1.10.3)
+    minitest (5.12.2)
+    newrelic_rpm (6.7.0.359)
+    nio4r (2.5.2)
+    nio4r (2.5.2-java)
+    nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
-    nokogiri (1.10.3-java)
+    nokogiri (1.10.4-java)
     pg (1.1.4)
-    puma (3.12.1)
-    puma (3.12.1-java)
+    puma (4.2.1)
+      nio4r (~> 2.0)
+    puma (4.2.1-java)
+      nio4r (~> 2.0)
     rack (2.0.7)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
-    rails (5.2.3)
-      actioncable (= 5.2.3)
-      actionmailer (= 5.2.3)
-      actionpack (= 5.2.3)
-      actionview (= 5.2.3)
-      activejob (= 5.2.3)
-      activemodel (= 5.2.3)
-      activerecord (= 5.2.3)
-      activestorage (= 5.2.3)
-      activesupport (= 5.2.3)
+    rails (6.0.0)
+      actioncable (= 6.0.0)
+      actionmailbox (= 6.0.0)
+      actionmailer (= 6.0.0)
+      actionpack (= 6.0.0)
+      actiontext (= 6.0.0)
+      actionview (= 6.0.0)
+      activejob (= 6.0.0)
+      activemodel (= 6.0.0)
+      activerecord (= 6.0.0)
+      activestorage (= 6.0.0)
+      activesupport (= 6.0.0)
       bundler (>= 1.3.0)
-      railties (= 5.2.3)
+      railties (= 6.0.0)
       sprockets-rails (>= 2.0.0)
     rails-assets-commonmark (0.29.0)
     rails-assets-highlightjs (9.12.0)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.0.4)
-      loofah (~> 2.2, >= 2.2.2)
-    railties (5.2.3)
-      actionpack (= 5.2.3)
-      activesupport (= 5.2.3)
+    rails-html-sanitizer (1.3.0)
+      loofah (~> 2.3)
+    railties (6.0.0)
+      actionpack (= 6.0.0)
+      activesupport (= 6.0.0)
       method_source
       rake (>= 0.8.7)
-      thor (>= 0.19.0, < 2.0)
-    rake (12.3.2)
-    rb-fsevent (0.10.3)
-    rb-inotify (0.10.0)
-      ffi (~> 1.0)
-    sass (3.7.4)
-      sass-listen (~> 4.0.0)
-    sass-listen (4.0.0)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
-    sass-rails (5.0.7)
-      railties (>= 4.0.0, < 6)
-      sass (~> 3.1)
-      sprockets (>= 2.8, < 4.0)
-      sprockets-rails (>= 2.0, < 4.0)
-      tilt (>= 1.1, < 3)
-    sassc (2.0.1)
+      thor (>= 0.20.3, < 2.0)
+    rake (13.0.0)
+    sass-rails (6.0.0)
+      sassc-rails (~> 2.1, >= 2.1.1)
+    sassc (2.2.1)
       ffi (~> 1.9)
-      rake
-    sprockets (3.7.2)
+    sassc-rails (2.1.2)
+      railties (>= 4.0.0)
+      sassc (>= 2.0)
+      sprockets (> 3.0)
+      sprockets-rails
+      tilt
+    sprockets (4.0.0)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     sprockets-rails (3.2.1)
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
-    therubyrhino (2.0.4)
-      therubyrhino_jar (>= 1.7.3)
-    therubyrhino_jar (1.7.6)
+    therubyrhino (2.1.2)
+      therubyrhino_jar (>= 1.7.4, < 1.7.9)
+    therubyrhino_jar (1.7.8)
     thor (0.20.3)
     thread_safe (0.3.6)
     thread_safe (0.3.6-java)
-    tilt (2.0.9)
+    tilt (2.0.10)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
-    uglifier (4.1.20)
+    uglifier (4.2.0)
       execjs (>= 0.3.0, < 3)
-    websocket-driver (0.7.0)
+    websocket-driver (0.7.1)
       websocket-extensions (>= 0.1.0)
-    websocket-driver (0.7.0-java)
+    websocket-driver (0.7.1-java)
       websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.3)
+    websocket-extensions (0.1.4)
+    zeitwerk (2.2.0)
 
 PLATFORMS
   java
@@ -183,7 +194,7 @@
   newrelic_rpm
   pg
   puma
-  rails (~> 5.2.0)
+  rails (~> 6.0.0)
   rails-assets-commonmark!
   rails-assets-highlightjs!
   sass-rails
diff -r 722f4eccd370 -r fd3078b4d355 bin/setup
--- a/bin/setup	Fri May 31 09:10:37 2019 +0900
+++ b/bin/setup	Tue Oct 22 16:17:30 2019 +0900
@@ -1,6 +1,5 @@
 #!/usr/bin/env ruby
 require 'fileutils'
-include FileUtils
 
 # path to your application root.
 APP_ROOT = File.expand_path('..', __dir__)
@@ -9,24 +8,25 @@
   system(*args) || abort("\n== Command #{args} failed ==")
 end
 
-chdir APP_ROOT do
-  # This script is a starting point to setup your application.
+FileUtils.chdir APP_ROOT do
+  # This script is a way to setup or update your development environment automatically.
+  # This script is idempotent, so that you can run it at anytime and get an expectable outcome.
   # Add necessary setup steps to this file.
 
   puts '== Installing dependencies =='
   system! 'gem install bundler --conservative'
   system('bundle check') || system!('bundle install')
 
-  # Install JavaScript dependencies if using Yarn
+  # Install JavaScript dependencies
   # system('bin/yarn')
 
   # puts "\n== Copying sample files =="
   # unless File.exist?('config/database.yml')
-  #   cp 'config/database.yml.sample', 'config/database.yml'
+  #   FileUtils.cp 'config/database.yml.sample', 'config/database.yml'
   # end
 
   puts "\n== Preparing database =="
-  system! 'bin/rails db:setup'
+  system! 'bin/rails db:prepare'
 
   puts "\n== Removing old logs and tempfiles =="
   system! 'bin/rails log:clear tmp:clear'
diff -r 722f4eccd370 -r fd3078b4d355 config/application.rb
--- a/config/application.rb	Fri May 31 09:10:37 2019 +0900
+++ b/config/application.rb	Tue Oct 22 16:17:30 2019 +0900
@@ -64,6 +64,6 @@
 
     config.action_view.field_error_proc = proc { |html| html }
 
-    config.load_defaults 5.0
+    config.middleware.delete ActionDispatch::HostAuthorization
   end
 end
diff -r 722f4eccd370 -r fd3078b4d355 config/boot.rb
--- a/config/boot.rb	Fri May 31 09:10:37 2019 +0900
+++ b/config/boot.rb	Tue Oct 22 16:17:30 2019 +0900
@@ -1,3 +1,3 @@
-ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../Gemfile", __dir__)
+ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../Gemfile', __dir__)
 
-require "bundler/setup" # Set up gems listed in the Gemfile.
+require 'bundler/setup' # Set up gems listed in the Gemfile.
diff -r 722f4eccd370 -r fd3078b4d355 config/environment.rb
--- a/config/environment.rb	Fri May 31 09:10:37 2019 +0900
+++ b/config/environment.rb	Tue Oct 22 16:17:30 2019 +0900
@@ -1,5 +1,5 @@
-# Load the rails application.
-require_relative "application"
+# Load the Rails application.
+require_relative 'application'
 
-# Initialize the rails application.
+# Initialize the Rails application.
 Rails.application.initialize!
diff -r 722f4eccd370 -r fd3078b4d355 config/environments/development.rb
--- a/config/environments/development.rb	Fri May 31 09:10:37 2019 +0900
+++ b/config/environments/development.rb	Tue Oct 22 16:17:30 2019 +0900
@@ -16,6 +16,7 @@
   # Run rails dev:cache to toggle caching.
   if Rails.root.join('tmp', 'caching-dev.txt').exist?
     config.action_controller.perform_caching = true
+    config.action_controller.enable_fragment_cache_logging = true
 
     config.cache_store = :memory_store
     config.public_file_server.headers = {
@@ -27,9 +28,6 @@
     config.cache_store = :null_store
   end
 
-  # Store uploaded files on the local file system (see config/storage.yml for options)
-  # config.active_storage.service = :local
-
   # Print deprecation notices to the Rails logger.
   config.active_support.deprecation = :log
 
@@ -47,7 +45,7 @@
   # Suppress logger output for asset requests.
   config.assets.quiet = true
 
-  # Raises error for missing translations
+  # Raises error for missing translations.
   # config.action_view.raise_on_missing_translations = true
 
   # Use an evented file watcher to asynchronously detect changes in source code,
diff -r 722f4eccd370 -r fd3078b4d355 config/environments/production.rb
--- a/config/environments/production.rb	Fri May 31 09:10:37 2019 +0900
+++ b/config/environments/production.rb	Tue Oct 22 16:17:30 2019 +0900
@@ -14,19 +14,20 @@
   config.consider_all_requests_local       = false
   config.action_controller.perform_caching = true
 
+  # Ensures that a master key has been made available in either ENV["RAILS_MASTER_KEY"]
+  # or in config/master.key. This key is used to decrypt credentials (and other encrypted files).
+  # config.require_master_key = true
+
   # Disable serving static files from the `/public` folder by default since
   # Apache or NGINX already handles this.
-  config.public_file_server.enabled = ENV["RAILS_SERVE_STATIC_FILES"].present?
+  config.public_file_server.enabled = ENV['RAILS_SERVE_STATIC_FILES'].present?
 
-  # Compress JavaScripts and CSS.
-  config.assets.js_compressor = :uglifier
+  # Compress CSS using a preprocessor.
   # config.assets.css_compressor = :sass
 
   # Do not fallback to assets pipeline if a precompiled asset is missed.
   config.assets.compile = false
 
-  # `config.assets.precompile` and `config.assets.version` have moved to config/initializers/assets.rb
-
   # Enable serving of images, stylesheets, and JavaScripts from an asset server.
   # config.action_controller.asset_host = 'http://assets.example.com'
 
@@ -34,13 +35,6 @@
   # config.action_dispatch.x_sendfile_header = 'X-Sendfile' # for Apache
   # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX
 
-  # Action Cable endpoint configuration
-  # config.action_cable.url = 'wss://example.com/cable'
-  # config.action_cable.allowed_request_origins = [ 'http://example.com', /http:\/\/example.*/ ]
-
-  # Don't mount Action Cable in the main server process.
-  # config.action_cable.mount_path = nil
-
   # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
   # config.force_ssl = true
 
@@ -49,19 +43,14 @@
   config.log_level = :debug
 
   # Prepend all log lines with the following tags.
-  config.log_tags = [:request_id]
+  config.log_tags = [ :request_id ]
 
   # Use a different cache store in production.
   # config.cache_store = :mem_cache_store
 
-  # Use a real queuing backend for Active Job (and separate queues per environment)
+  # Use a real queuing backend for Active Job (and separate queues per environment).
   # config.active_job.queue_adapter     = :resque
-  # config.active_job.queue_name_prefix = "zeropaste_#{Rails.env}"
-  # config.action_mailer.perform_caching = false
-
-  # Ignore bad email addresses and do not raise email delivery errors.
-  # Set this to true and configure the email server for immediate delivery to raise delivery errors.
-  # config.action_mailer.raise_delivery_errors = false
+  # config.active_job.queue_name_prefix = "zeropaste_production"
 
   # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
   # the I18n.default_locale when a translation cannot be found).
@@ -78,11 +67,32 @@
   # config.logger = ActiveSupport::TaggedLogging.new(Syslog::Logger.new 'app-name')
 
   if $cfg[:log_to_stdout]
-    logger = ActiveSupport::Logger.new(STDOUT)
+    logger           = ActiveSupport::Logger.new(STDOUT)
     logger.formatter = config.log_formatter
-    config.logger = ActiveSupport::TaggedLogging.new(logger)
+    config.logger    = ActiveSupport::TaggedLogging.new(logger)
   end
 
   # Do not dump schema after migrations.
   config.active_record.dump_schema_after_migration = false
+
+  # Inserts middleware to perform automatic connection switching.
+  # The `database_selector` hash is used to pass options to the DatabaseSelector
+  # middleware. The `delay` is used to determine how long to wait after a write
+  # to send a subsequent read to the primary.
+  #
+  # The `database_resolver` class is used by the middleware to determine which
+  # database is appropriate to use based on the time delay.
+  #
+  # The `database_resolver_context` class is used by the middleware to set
+  # timestamps for the last write to the primary. The resolver uses the context
+  # class timestamps to determine how long to wait before reading from the
+  # replica.
+  #
+  # By default Rails will store a last write timestamp in the session. The
+  # DatabaseSelector middleware is designed as such you can define your own
+  # strategy for connection switching and pass that into the middleware through
+  # these configuration options.
+  # config.active_record.database_selector = { delay: 2.seconds }
+  # config.active_record.database_resolver = ActiveRecord::Middleware::DatabaseSelector::Resolver
+  # config.active_record.database_resolver_context = ActiveRecord::Middleware::DatabaseSelector::Resolver::Session
 end
diff -r 722f4eccd370 -r fd3078b4d355 config/environments/test.rb
--- a/config/environments/test.rb	Fri May 31 09:10:37 2019 +0900
+++ b/config/environments/test.rb	Tue Oct 22 16:17:30 2019 +0900
@@ -1,10 +1,11 @@
+# The test environment is used exclusively to run your application's
+# test suite. You never need to work with it otherwise. Remember that
+# your test database is "scratch space" for the test suite and is wiped
+# and recreated between test runs. Don't rely on the data there!
+
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
 
-  # The test environment is used exclusively to run your application's
-  # test suite. You never need to work with it otherwise. Remember that
-  # your test database is "scratch space" for the test suite and is wiped
-  # and recreated between test runs. Don't rely on the data there!
   config.cache_classes = true
 
   # Do not eager load code on boot. This avoids loading your whole application
@@ -21,6 +22,7 @@
   # Show full error reports and disable caching.
   config.consider_all_requests_local       = true
   config.action_controller.perform_caching = false
+  config.cache_store = :null_store
 
   # Raise exceptions instead of rendering exception templates.
   config.action_dispatch.show_exceptions = false
@@ -28,12 +30,9 @@
   # Disable request forgery protection in test environment.
   config.action_controller.allow_forgery_protection = false
 
-  # Store uploaded files on the local file system in a temporary directory
-  # config.active_storage.service = :test
-
   # Print deprecation notices to the stderr.
   config.active_support.deprecation = :stderr
 
-  # Raises error for missing translations
+  # Raises error for missing translations.
   # config.action_view.raise_on_missing_translations = true
 end
diff -r 722f4eccd370 -r fd3078b4d355 config/initializers/content_security_policy.rb
--- a/config/initializers/content_security_policy.rb	Fri May 31 09:10:37 2019 +0900
+++ b/config/initializers/content_security_policy.rb	Tue Oct 22 16:17:30 2019 +0900
@@ -11,6 +11,8 @@
 #   policy.object_src  :none
 #   policy.script_src  :self, :https
 #   policy.style_src   :self, :https
+#   # If you are using webpack-dev-server then specify webpack-dev-server host
+#   policy.connect_src :self, :https, "http://localhost:3035", "ws://localhost:3035" if Rails.env.development?
 
 #   # Specify URI for violation reports
 #   # policy.report_uri "/csp-violation-report-endpoint"
@@ -19,6 +21,9 @@
 # If you are using UJS then enable automatic nonce generation
 # Rails.application.config.content_security_policy_nonce_generator = -> request { SecureRandom.base64(16) }
 
+# Set the nonce only to specific directives
+# Rails.application.config.content_security_policy_nonce_directives = %w(script-src)
+
 # Report CSP violations to a specified URI
 # For further information see the following documentation:
 # https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy-Report-Only
diff -r 722f4eccd370 -r fd3078b4d355 config/initializers/new_framework_defaults_6_0.rb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/config/initializers/new_framework_defaults_6_0.rb	Tue Oct 22 16:17:30 2019 +0900
@@ -0,0 +1,45 @@
+# Be sure to restart your server when you modify this file.
+#
+# This file contains migration options to ease your Rails 6.0 upgrade.
+#
+# Once upgraded flip defaults one by one to migrate to the new default.
+#
+# Read the Guide for Upgrading Ruby on Rails for more info on each option.
+
+# Don't force requests from old versions of IE to be UTF-8 encoded.
+# Rails.application.config.action_view.default_enforce_utf8 = false
+
+# Embed purpose and expiry metadata inside signed and encrypted
+# cookies for increased security.
+#
+# This option is not backwards compatible with earlier Rails versions.
+# It's best enabled when your entire app is migrated and stable on 6.0.
+# Rails.application.config.action_dispatch.use_cookies_with_metadata = true
+
+# Change the return value of `ActionDispatch::Response#content_type` to Content-Type header without modification.
+# Rails.application.config.action_dispatch.return_only_media_type_on_content_type = false
+
+# Return false instead of self when enqueuing is aborted from a callback.
+# Rails.application.config.active_job.return_false_on_aborted_enqueue = true
+
+# Send Active Storage analysis and purge jobs to dedicated queues.
+# Rails.application.config.active_storage.queues.analysis = :active_storage_analysis
+# Rails.application.config.active_storage.queues.purge    = :active_storage_purge
+
+# When assigning to a collection of attachments declared via `has_many_attached`, replace existing
+# attachments instead of appending. Use #attach to add new attachments without replacing existing ones.
+# Rails.application.config.active_storage.replace_on_assign_to_many = true
+
+# Use ActionMailer::MailDeliveryJob for sending parameterized and normal mail.
+#
+# The default delivery jobs (ActionMailer::Parameterized::DeliveryJob, ActionMailer::DeliveryJob),
+# will be removed in Rails 6.1. This setting is not backwards compatible with earlier Rails versions.
+# If you send mail in the background, job workers need to have a copy of
+# MailDeliveryJob to ensure all delivery jobs are processed properly.
+# Make sure your entire app is migrated and stable on 6.0 before using this setting.
+# Rails.application.config.action_mailer.delivery_job = "ActionMailer::MailDeliveryJob"
+
+# Enable the same cache key to be reused when the object being cached of type
+# `ActiveRecord::Relation` changes by moving the volatile information (max updated at and count)
+# of the relation's cache key into the cache version to support recycling cache key.
+# Rails.application.config.active_record.collection_cache_versioning = true
diff -r 722f4eccd370 -r fd3078b4d355 config/initializers/wrap_parameters.rb
--- a/config/initializers/wrap_parameters.rb	Fri May 31 09:10:37 2019 +0900
+++ b/config/initializers/wrap_parameters.rb	Tue Oct 22 16:17:30 2019 +0900
@@ -5,7 +5,7 @@
 
 # Enable parameter wrapping for JSON. You can disable this by setting :format to an empty array.
 ActiveSupport.on_load(:action_controller) do
-  wrap_parameters :format => [:json]
+  wrap_parameters format: [:json]
 end
 
 # To enable root element in JSON for ActiveRecord objects.