将Sass-rails gem升级到5.0会提供弃用警告 [英] upgrade sass-rails gem to 5.0 gives deprecation warning

问题描述

我们已升级到sass-rails版本5.0.0，并收到此弃用警告:

We upgraded to sass-rails version 5.0.0 and are getting this deprecation warning:

DEPRECATION WARNING: Extra .css in SCSS file is unnecessary. Rename /Users/foo/Projects/foo/app/assets/stylesheets/foo.css.scss to /Users/foo/Projects/foo/app/assets/stylesheets/foo.scss. (called from _app_views_layouts_application_html_erb__1560597815210891605_70190441246060 at /Users/foo/Projects/foo/app/views/layouts/application.html.erb:13)

有人知道这是怎么回事吗?宝石真的要我从以下位置重命名所有样式表资源吗?

Anyone know whats going on with this? Does the gem really want me to rename all of my stylesheet assets from:

app/assets/stylesheets/foo.css.scss

收件人:

app/assets/stylesheets/foo.scss

?

在我看来似乎违反了多年的Rails惯例.也许有一种方法可以抑制过时警告?

Seems to run against years of Rails convention to me. Perhaps there is a way to suppress the deprecation warning?

推荐答案

是的，您需要将.css.scss重命名为.scss，因为链轮4不支持.css.scss.

Yes you need to rename your .css.scss to just .scss, as .css.scss will not be supported in sprockets 4.

如果您想暂时取消弃用，则可以在config/initializer/deprecations.rb

If you want to suppress the deprecation temporary you can the following to config/initializer/deprecations.rb

Rails.application.config.after_initialize do
  old_behaviour = ActiveSupport::Deprecation.behavior
  ActiveSupport::Deprecation.behavior = ->(message, callstack) {
    unless message.starts_with?('DEPRECATION WARNING: Extra .css in SCSS file is unnecessary.',
                                'DEPRECATION WARNING: Extra .css in SASS file is unnecessary.')
      old_behaviour.each { |behavior| behavior[message,callstack] }
    end
  }
end

或者您可以猴子打补丁以免生成如下消息:

Or you can monkey patch to not to generate the message like this:

module DisableCssDeprecation
  def deprecate_extra_css_extension(engine)
    if engine && filename = engine.options[:filename]
      if filename.end_with?('.css.scss','.css.sass')
        engine
      else
        super
      end 
    end
  end
end

module Sass ; module Rails ; class SassImporter
  prepend DisableCssDeprecation
end ; end ; end

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