在Rails 5.2.2中，我在生产环境中有一个应用程序，该应用程序在RAILS_ENV=production rails assets:precompile之后进行了预编译。我看到我的应用使用了预编译的资产，因为示例资产的源代码是（我的假设是否正确？）：
<img src="/assets/sets/XYZ/LGD-4cd5838b8528caf5a0c1e1e15378df05a088ae79d4ab33e522d871ee783902d4.png" width="63" height="70">
我的production.rb如下：
Rails.application.configure do
# Settings specified here will take precedence over those in config/application.rb.
# In the development environment your application's code is reloaded on
# every request. This slows down response time but is perfect for development
# since you don't have to restart the web server when you make code changes.
config.cache_classes = true
# Do not eager load code on boot.
config.eager_load = true
# Show full error reports.
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
# ############################################################################################
# Case 1: Commented in order to see static files (pictures) when e.g. Error 404/500. Is it OK?
# ############################################################################################
# config.public_file_server.enabled = ENV['RAILS_SERVE_STATIC_FILES'].present?
# Compress JavaScripts and CSS.
config.assets.js_compressor = :uglifier
config.assets.css_compressor = :sass
# Do not fallback to assets pipeline if a precompiled asset is missed.
# ##########################################################################
# Case 2: Commented. What is a default value in production (when commented)?
# ##########################################################################
# 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'
# Specifies the header that your server uses for sending files.
# config.action_dispatch.x_sendfile_header = 'X-Sendfile' # for Apache
# config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX
# Store uploaded files on the local file system (see config/storage.yml for options)
config.active_storage.service = :local
# Mount Action Cable outside main process or domain
# config.action_cable.mount_path = nil
# config.action_cable.url = 'wss://example.com/cable'
# config.action_cable.allowed_request_origins = [ 'http://example.com', /http:\/\/example.*/ ]
# Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
# config.force_ssl = true
# Use the lowest log level to ensure availability of diagnostic information
# when problems arise.
config.log_level = :warn
# Prepend all log lines with the following tags.
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)
# config.active_job.queue_adapter = :resque
# config.active_job.queue_name_prefix = "example_#{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
# Enable locale fallbacks for I18n (makes lookups for any locale fall back to
# the I18n.default_locale when a translation cannot be found).
config.i18n.fallbacks = true
# Send deprecation notices to registered listeners.
# Commented:
# config.active_support.deprecation = :notify
# Use default logging formatter so that PID and timestamp are not suppressed.
config.log_formatter = ::Logger::Formatter.new
# Use a different logger for distributed setups.
# require 'syslog/logger'
# config.logger = ActiveSupport::TaggedLogging.new(Syslog::Logger.new 'app-name')
if ENV["RAILS_LOG_TO_STDOUT"].present?
logger = ActiveSupport::Logger.new(STDOUT)
logger.formatter = config.log_formatter
config.logger = ActiveSupport::TaggedLogging.new(logger)
end
# Do not dump schema after migrations.
config.active_record.dump_schema_after_migration = false
# Debug mode disables concatenation and preprocessing of assets.
# This option may cause significant delays in view rendering with a large
# number of complex assets.
# ###############################################################################
# Case 3: It's set 'true', because all functions in page work then. Is it OK?
# When it's set 'false', two types of things don't work:
# - 1: javascript countdown:
# <span id="next_date_countdown"></span>
# <script type="text/javascript">
# // Next date countdown
# $('#next_date_countdown').countdown("<%= next_date.deadline.utc %>", function(event) {
# var $this = $(this).html(event.strftime(''
# + '<span class="bigger">%D</span><span class="smaller">'
# + " <%= t('date.days') %>" + '</span> '
# + '<span class="bigger">%H</span><span class="smaller">'
# + " <%= t('date.hours_abb') %>" + '</span> '
# + '<span class="bigger">%M</span><span class="smaller">'
# + " <%= t('date.minutes_abb') %>" + '</span> '
# + '<span class="bigger">%S</span><span class="smaller">'
# + " <%= t('date.seconds_abb') %>" + '</span> '
# ));
# });
# </script>
# - 2 gem's filterrific "select's" from form_for (otherfilterrific functions work):
# <%= form_for_filterrific @filterrific do |f| %>
# <div>
# <%= f.select(:with_company,
# @filterrific.select_options[:with_company],
# { include_blank: t('all_groups') }, class: 'form-control') %>
# </div>
# <%# add an automated spinner to your form when the list is refreshed %>
# <%= render_filterrific_spinner %>
# <% end %>
# ##################################################################################
config.assets.debug = true
# Suppress logger output for asset requests.
config.assets.quiet = true
end
我的3个问题均在代码中：
# ############################################################################################
# Case 1: Commented in order to see static files (pictures) when e.g. Error 404/500. Is it OK?
# ############################################################################################
# config.public_file_server.enabled = ENV['RAILS_SERVE_STATIC_FILES'].present?
# Do not fallback to assets pipeline if a precompiled asset is missed.
# ##########################################################################
# Case 2: Commented. What is a default value in production (when commented)?
# ##########################################################################
# config.assets.compile = false
# ###############################################################################
# Case 3: It's set 'true', because all functions in page work then. Is it OK?
# When it's set 'false', two types of things don't work:
config.assets.debug = true
对于这3种情况，我的问题是：生产环境是否设置正确？