ruby-on-rails – Rails资产管道中的动态CSS,即时编译

>我最终切换到bootstrap-sass而不是https://github.com/thomas-mcdonald/bootstrap-sass
>对我的application.rb文件进行了以下更改,以确保尽管环境中始终包含：asset组：

if defined?(Bundler)
    # If you precompile assets before deploying to production,use this line
    # Bundler.require(*Rails.groups(:assets => %w(development test)))
    # If you want your assets lazily compiled in production,use this line
    Bundler.require(:default,:assets,Rails.env)
end

>使用了Kuraut Computing的Manuel Meure(谢谢Manuel！)提供的概念,发现于http://www.krautcomputing.com/blog/2012/03/27/how-to-compile-custom-sass-stylesheets-dynamically-during-runtime/.

>我做了一些调整以适应我自己的需要,但Manuel所说明的核心概念是我编译过程的基础.

>在我的模型中(我们称之为“网站”),我有一段代码如下：

# .../app/models/site.rb
...

BASE_STYLE = "
  @import "compass/css3";

  <ADDITIONAL_STYLES>

  @import "bootstrap";
  @import "bootstrap-responsive";
".freeze

# Provides the SASS/CSS content that would 
# be included into your base SASS content before compilation
def sass_content
  "
  $bodyBackground: #{self.body_background};
  $textColor: #{self.text_color};
  " + self.css # Any additional CSS/SASS you would want to add
end

def compile_css(test_only = false,force_recompile = false)

  # SassCompiler is a modification of the information made available at the Kraut Computing link
  compiler = SassCompiler.new("#{self.id}/site.css",{:syntax => :scss,:output_dir => Rails.root.join('app','assets','sites')})

  # Bail if we're already compiled and we're not forcing recompile
  return if compiler.compiled? && !force_recompile && !test_only

  # The block here yields the content that will be rendered
  compiler.compile(test_only) {
    # take our base styles,slap in there some vars that we make available to be customized by the user
    # and then finally add in our css/scss that the user updated... concat those and use it as
    # our raw sass to compile
    BASE_STYLE.gsub(/<ADDITIONAL_STYLES>/,self.sass_content)
  }
end

我希望这有帮助.我知道它偏离了原来的帖子,但是它的偏离是因为这似乎是解决问题最容易解决的问题.

如果我没有回答您的具体问题,请随时发表评论,以便尽可能扩展.

谢谢！