Sass :: Engine.render不會導入藍圖庫...爲什麼？

Question

我試圖使用Sass::Engine.new以編程方式將一些sass呈現到CSS中。我遇到了一個問題，我無法弄清楚如何讓它允許@import GEMMIFIED_SASS_MODULE。舉例來說，這就是我想：

?> sass = "@import \"blueprint/reset\"\nh1\n width: 100%" 
=> "@import \"blueprint/reset\"\nh1\n width: 100%" 
>> puts sass # For readable version 
@import "blueprint/reset" 
h1 
    width: 100% 
=> nil 
>> Sass::Engine.new(sass, :syntax => :sass).render 
Sass::SyntaxError: File to import not found or unreadable: blueprint/reset. 
Load path: /Users/username/projects/my_app 
     from (sass):1 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/tree/import_node.rb:64:in `rescue in import' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/tree/import_node.rb:42:in `import' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/tree/import_node.rb:25:in `imported_file' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/tree/visitors/perform.rb:149:in `rescue in visit_import' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/tree/visitors/perform.rb:154:in `visit_import' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/tree/visitors/base.rb:37:in `visit' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/tree/visitors/perform.rb:18:in `visit' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/tree/visitors/base.rb:53:in `block in visit_children' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/tree/visitors/base.rb:53:in `map' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/tree/visitors/base.rb:53:in `visit_children' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/tree/visitors/perform.rb:27:in `block in visit_children' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/tree/visitors/perform.rb:39:in `with_environment' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/tree/visitors/perform.rb:26:in `visit_children' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/tree/visitors/base.rb:37:in `block in visit' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/tree/visitors/perform.rb:47:in `visit_root' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/tree/visitors/base.rb:37:in `visit' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/tree/visitors/perform.rb:18:in `visit' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/tree/visitors/perform.rb:7:in `visit' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/tree/root_node.rb:20:in `render' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/engine.rb:299:in `_render' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/sass-3.1.15/lib/sass/engine.rb:246:in `render' 
     from (irb):30 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/railties-3.2.3/lib/rails/commands/console.rb:47:in `start' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/railties-3.2.3/lib/rails/commands/console.rb:8:in `start' 
     from /Users/username/.rvm/gems/ruby-1.9.2-p290@my_app/gems/railties-3.2.3/lib/rails/commands.rb:41:in `<top (required)>' 
     from script/rails:6:in `require' 
     from script/rails:6:in `<main>' 

我沒有問題，這樣做時，我把一些青菜到一個文件中，並在頂部使用@import blueprint/reset，它是能夠編譯到CSS就好了導通飛行在開發模式並通過rake assets:precompile。但是我有一個新的用例，我需要渲染一些自己並且遇到這個問題。在嘗試渲染它之前，我已嘗試添加require 'compass'，require 'compass-rails'和require 'compass/rails'，但它不起作用。需要的工作（在需要文件後說true或false），但它仍然不會在我的Sass::Engine.new().render調用中可用。

在我的Gemfile我：

gem 'haml-rails' 
gem 'sass-rails' 
gem 'compass-rails' 

任何人有什麼我可以做，使可見圖書館的想法用無禮的話::引擎是什麼時候？我在Reference或Documentation或Documentation

Answer 1

中找不到任何內容。您不提供Blueprint路徑，SASS找不到它。

指南針是爲解決此問題而創建的工具。它提供了一個可直接導入而不提供路徑的擴展生態系統。

你試圖用普通的SASS來做到這一點。要解決該問題，您必須讓SASS熟悉Compass擴展存儲位置：

# Allowing vanilla SASS use Compass extensions 
Compass.sass_engine_options[:load_paths].each do |path| 
    Sass.load_paths << path 
end