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eede8d8130
ActionView::Template instances compile their source to methods on the
ActionView::CompiledTemplates module. To prevent leaks in development
mode, where templates can frequently change, a finalizer is added that
undefines these methods[1] when the templates are garbage-collected.
This is undesirable in the test environment, however, as templates don't
change during the life of the test. Moreover, the cost of undefining a
method is proportional to the number of descendants a class or module
has, since the method cache must be cleared for all descendant classes.
As ActionView::CompiledTemplates is mixed into every
ActionView::TestCase (or in RSpec suites, every view spec example
group), it can end up with a very large number of descendants, and
undefining its methods can become very expensive.
In large test suites, this results in a long delay at the end of the
test suite as all template finalizers are run, only for the process to
then exit.
To avoid this unnecessary cost, this change adds a config option,
`action_view.finalize_compiled_template_methods`, defaulting to true,
and sets it to false in the test environment only.
[1] 09b2348f7f/actionview/lib/action_view/template.rb (L118-L126)
100 lines
3.5 KiB
Ruby
100 lines
3.5 KiB
Ruby
# frozen_string_literal: true
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require "action_view"
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require "rails"
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module ActionView
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# = Action View Railtie
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class Railtie < Rails::Engine # :nodoc:
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config.action_view = ActiveSupport::OrderedOptions.new
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config.action_view.embed_authenticity_token_in_remote_forms = nil
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config.action_view.debug_missing_translation = true
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config.action_view.default_enforce_utf8 = nil
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config.action_view.finalize_compiled_template_methods = true
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config.eager_load_namespaces << ActionView
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initializer "action_view.embed_authenticity_token_in_remote_forms" do |app|
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ActiveSupport.on_load(:action_view) do
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ActionView::Helpers::FormTagHelper.embed_authenticity_token_in_remote_forms =
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app.config.action_view.delete(:embed_authenticity_token_in_remote_forms)
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end
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end
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initializer "action_view.form_with_generates_remote_forms" do |app|
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ActiveSupport.on_load(:action_view) do
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form_with_generates_remote_forms = app.config.action_view.delete(:form_with_generates_remote_forms)
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ActionView::Helpers::FormHelper.form_with_generates_remote_forms = form_with_generates_remote_forms
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end
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end
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initializer "action_view.form_with_generates_ids" do |app|
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ActiveSupport.on_load(:action_view) do
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form_with_generates_ids = app.config.action_view.delete(:form_with_generates_ids)
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unless form_with_generates_ids.nil?
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ActionView::Helpers::FormHelper.form_with_generates_ids = form_with_generates_ids
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end
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end
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end
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initializer "action_view.default_enforce_utf8" do |app|
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ActiveSupport.on_load(:action_view) do
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default_enforce_utf8 = app.config.action_view.delete(:default_enforce_utf8)
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unless default_enforce_utf8.nil?
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ActionView::Helpers::FormTagHelper.default_enforce_utf8 = default_enforce_utf8
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end
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end
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end
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initializer "action_view.finalize_compiled_template_methods" do |app|
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ActiveSupport.on_load(:action_view) do
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ActionView::Template.finalize_compiled_template_methods =
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app.config.action_view.delete(:finalize_compiled_template_methods)
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end
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end
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initializer "action_view.logger" do
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ActiveSupport.on_load(:action_view) { self.logger ||= Rails.logger }
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end
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initializer "action_view.set_configs" do |app|
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ActiveSupport.on_load(:action_view) do
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app.config.action_view.each do |k, v|
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send "#{k}=", v
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end
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end
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end
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initializer "action_view.caching" do |app|
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ActiveSupport.on_load(:action_view) do
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if app.config.action_view.cache_template_loading.nil?
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ActionView::Resolver.caching = app.config.cache_classes
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end
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end
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end
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initializer "action_view.per_request_digest_cache" do |app|
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ActiveSupport.on_load(:action_view) do
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unless ActionView::Resolver.caching?
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app.executor.to_run ActionView::Digestor::PerExecutionDigestCacheExpiry
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end
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end
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end
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initializer "action_view.setup_action_pack" do |app|
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ActiveSupport.on_load(:action_controller) do
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ActionView::RoutingUrlFor.include(ActionDispatch::Routing::UrlFor)
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end
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end
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initializer "action_view.collection_caching", after: "action_controller.set_configs" do |app|
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PartialRenderer.collection_cache = app.config.action_controller.cache_store
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end
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rake_tasks do |app|
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unless app.config.api_only
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load "action_view/tasks/cache_digests.rake"
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end
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end
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end
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end
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