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我正在处理Rails 3.1.2、asset_sync 和cludfront。我已经安装了asset_sync 并预编译了所有资产。我面临的问题如下：rake编译将javascript和css文件组合成一个应用程序。[js|css]。在生产模式下，应用程序仍在引用原始名称，但使用新的 cdn 路径，我收到 404 错误。

这是生产环境文件：

Griov4::Application.configure do
  # Settings specified here will take precedence over those in config/application.rb

  # Code is not reloaded between requests
  config.cache_classes = true

  # Full error reports are disabled and caching is turned on
  config.consider_all_requests_local       = false
  config.action_controller.perform_caching = true

  # Disable Rails's static asset server (Apache or nginx will already do this)
  config.serve_static_assets = false

  # Compress JavaScripts and CSS
  config.assets.compress = true

  # Don't fallback to assets pipeline if a precompiled asset is missed
  config.assets.compile = true

  # Generate digests for assets URLs
  config.assets.digest = true

  # Defaults to Rails.root.join("public/assets")
  # config.assets.manifest = YOUR_PATH

  # 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

  # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
  # config.force_ssl = true

  # See everything in the log (default is :info)
  # config.log_level = :debug

  # Use a different logger for distributed setups
  # config.logger = SyslogLogger.new

  # Use a different cache store in production
  # config.cache_store = :mem_cache_store

  # Enable serving of images, stylesheets, and JavaScripts from an asset server
  # config.action_controller.asset_host = "http://assets.example.com"

  # Precompile additional assets (application.js, application.css, and all non-JS/CSS are already added)
  # config.assets.precompile += %w( search.js )

  # Disable delivery errors, bad email addresses will be ignored
  # config.action_mailer.raise_delivery_errors = false

  # Enable threaded mode
  # config.threadsafe!

  # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
  # the I18n.default_locale when a translation can not be found)
  config.i18n.fallbacks = true

  # Send deprecation notices to registered listeners
  config.active_support.deprecation = :notify

  config.action_controller.asset_host = "#{ENV['CDN']}"

end

这是我的 .env 文件

FOG_PROVIDER=AWS
FOG_DIRECTORY=
AWS_ACCESS_KEY_ID= 
AWS_SECRET_ACCESS_KEY=
CDN=http://d3tf1w68p27174.cloudfront.net
RACK_ENV=production

我在 js 文件夹中的清单文件：

// This is a manifest file that'll be compiled into including all the files listed below.
// Add new JavaScript/Coffee code in separate files in this directory and they'll automatically
// be included in the compiled file accessible from http://example.com/assets/application.js
// It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
// the compiled file.
//


//= require_tree .

我在 css 文件夹中的清单文件：

/*
 * This is a manifest file that'll automatically include all the stylesheets available in this directory
 * and any sub-directories. You're free to add application-wide styles to this file and they'll appear at
 * the top of the compiled file, but it's generally better to create a new file per style scope.
 *= require_self
 *= require bootstrap.min
*/

然后我输入：$bundle exec rake assets:clean assets:precompile

application.ss 和 application.js 被创建，但不幸的是，生产应用程序仍然引用具有以下路径的原始 css/js 文件：

http://d3tf1w68p27174.cloudfront.net/assets/home-24d72d1643e0016381b14c19d90d9e74.css

http://d3tf1w68p27174.cloudfront.net/assets/home-74ac0007a6e42997f8210f80b99a203b.js

我检查了我的本地文件夹和 cdn 文件夹，它们都不包含这些文件。asset_sync 工作正常，因为我可以在我的 cdn 文件夹中看到其余的资产。

我知道这可能与资产管道有关，但我不知道它是什么。

谢谢你的帮助。

4

1 回答 1

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为确保您的所有资产都引用新资产主机，请确保您使用的是 RailsAssetTagHelper方法（如image_tag、stylesheet_link_tag、favicon_link_tag等）。

如果您在 CSS 中使用背景图像引用，则可以利用多个资产预处理器支持来确保它们也引用新资产宿主。

例如，要在“home.css”上启用多个资产预处理，您可以添加.erb扩展名，将其更改为“home.css.erb”。该文件将首先由 ERB 处理，然后是 CSS，这意味着您可以引用您的资产，如下例所示：

body {
    background: url(<%= asset_path 'bg.png' %>);
}

您可以通过执行“home.css.scss.erb”之类的操作来更进一步。

有关更多信息，请参阅此和此。

于 2012-06-29T06:53:58.023 回答