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ruby-on-rails - 如何在开发过程中关闭 Rails 缓存

问题描述

我在 Rails 5.2.2 上，我正在构建一个 Web 应用程序，它使用我从public目录内部提供的一些静态 HTML、CSS 和 JavaScript。大多数情况下，当我更新文件时，它不会在我的浏览器中更新，但如果我进入私密浏览，它会起作用——直到它再次缓存，然后我需要打开一个新的私密窗口。

如何关闭文件public夹中文件的缓存？或者如果它更容易，我如何在开发过程中关闭所有缓存？

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

如果无法通过设置进行修复，我也愿意安装 gem 来解决这个问题。

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

标签： ruby-on-railsrubycachingstatic-files

解决方案

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，谁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。

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