ruby-on-rails - 如何在开发过程中关闭 Rails 缓存

Question

我正在使用 Rails 5.2.2，我正在构建一个 Web 应用程序，它使用我从 public 目录中提供的一些静态 HTML、CSS 和 JavaScript。大多数情况下，当我更新文件时，它不会在我刷新时在我的浏览器中更新，但如果我进入隐私浏览，它会起作用——直到它再次缓存，然后我需要打开一个新的隐私窗口。

如何关闭 public 文件夹中文件的缓存？或者，如果更简单，我如何在开发过程中关闭所有缓存？

这就是我的 development.rb 的样子。我尝试注释掉整个 if Rails.root.join('tmp', 'caching-dev.txt').exist? block ，但这没有做任何事情。

如果无法通过设置修复此问题，我也愿意安装 gem 来解决此问题。

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 = false

  # Do not eager load code on boot.
  config.eager_load = false

  # Show full error reports.
  config.consider_all_requests_local = true

  config.file_watcher = ActiveSupport::FileUpdateChecker

  # Enable/disable caching. By default caching is disabled.
  # Run rails dev:cache to toggle caching.
  if Rails.root.join('tmp', 'caching-dev.txt').exist?
    config.action_controller.perform_caching = true

    config.cache_store = :memory_store
    config.public_file_server.headers = {
      'Cache-Control' => "public, max-age=#{2.days.to_i}"
    }
  else
    config.action_controller.perform_caching = false

    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

  # Don't care if the mailer can't send.
  config.action_mailer.raise_delivery_errors = false

  config.action_mailer.perform_caching = false

  # Print deprecation notices to the Rails logger.
  config.active_support.deprecation = :log

  # Raise an error on page load if there are pending migrations.
  config.active_record.migration_error = :page_load

  # Highlight code that triggered database queries in logs.
  config.active_record.verbose_query_logs = true

  # Add devide default mailer url
  config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }


  # 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,
  # routes, locales, etc. This feature depends on the listen gem.
  config.file_watcher = ActiveSupport::EventedFileUpdateChecker
end

Answer 1

缓存的不是 Rails，而是您的浏览器。

要么你明确设置

config.public_file_server.headers = {
  'Cache-Control' => "no-cache"
}

(并清理您的浏览器缓存，它拥有您文件的所有旧版本和有效版本)，或者您完全禁用浏览器缓存。