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rails--rails/actionmailer/lib/action_mailer.rb
Samuel Cochran 4d43b05881 Eager autoload mail gem when eager load is true (#32808)
* Eager autoload mail gem when eager load is true

We had a production issue where our Sidekiq worker threads all became
deadlocked while autoloading a file within the mail gem, required via
ActionMailer, despite setting our Rails applicaiton to eager load.
`Mail.eager_autoload!` exists and works great, ActionMailer just doesn't
call it during eager loading. Adding it to the ActionMailer Railtie's
eager_load_namespaces takes care of calling `Mail.eager_autoload!`
during the `eager_load!` initializer.

* 'Mail' isn't defined yet, use before_eager_load instead

* Make sure mail is loaded

* Move eager load of Mail into ActionMailer.eager_load!

[Samuel Cochran + Rafael Mendonça França]
2018-05-23 16:50:36 -04:00

69 lines
2.1 KiB
Ruby

# frozen_string_literal: true
#--
# Copyright (c) 2004-2018 David Heinemeier Hansson
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#++
require "abstract_controller"
require "action_mailer/version"
# Common Active Support usage in Action Mailer
require "active_support"
require "active_support/rails"
require "active_support/core_ext/class"
require "active_support/core_ext/module/attr_internal"
require "active_support/core_ext/string/inflections"
require "active_support/lazy_load_hooks"
module ActionMailer
extend ::ActiveSupport::Autoload
eager_autoload do
autoload :Collector
end
autoload :Base
autoload :DeliveryMethods
autoload :InlinePreviewInterceptor
autoload :MailHelper
autoload :Parameterized
autoload :Preview
autoload :Previews, "action_mailer/preview"
autoload :TestCase
autoload :TestHelper
autoload :MessageDelivery
autoload :DeliveryJob
def self.eager_load!
super
require "mail"
Mail.eager_autoload!
end
end
autoload :Mime, "action_dispatch/http/mime_type"
ActiveSupport.on_load(:action_view) do
ActionView::Base.default_formats ||= Mime::SET.symbols
ActionView::Template::Types.delegate_to Mime
end