3

我正在尝试让 Bootstrap 的 Less 文件与Sinatra AssetPack一起使用，但我遇到了 Less 解析器错误。这些错误让我相信通过 bootstrap.less 导入的较少文件彼此不知道。

我有一个 app.rb 文件：

require 'sinatra/base'
require 'sinatra/assetpack'

class App < Sinatra::Base
  set :root, File.dirname(__FILE__)
  register Sinatra::AssetPack

  assets do
    css :bootstrap, [
      '/css/bootstrap.css'
    ]

  end

  get '/' do
    erb :index
  end

  # start the server if ruby file executed directly
  run! if app_file == $0
end

我已将所有 Bootstrap less 文件复制到/app/css目录中并修改了 bootstrap.less 以便每个 @import 语句以 .css 而不是 .less 结尾（但实际文件扩展名并未更改）。我还将所有内容都放在了 Github 上：https ://github.com/elevine/sinatra-assetpack-bootstrap

这是我遇到的一个错误的堆栈跟踪的前半部分：

  Less::ParseError - .tab-focus is undefined:
        at /users/elevine/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/less-2.2.1/lib/less/js/lib/less/parser.js:385:31
        /users/elevine/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/less-2.2.1/lib/less/parser.rb:57:in `block in to_css'
        /users/elevine/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/less-2.2.1/lib/less/java_script/v8_context.rb:90:in `block in do_lock'
        /users/elevine/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/less-2.2.1/lib/less/java_script/v8_context.rb:88:in `do_lock'
        /users/elevine/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/less-2.2.1/lib/less/java_script/v8_context.rb:60:in `lock'
        /users/elevine/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/less-2.2.1/lib/less/java_script/v8_context.rb:30:in `exec'
        /users/elevine/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/less-2.2.1/lib/less/java_script.rb:26:in `exec'
        /users/elevine/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/less-2.2.1/lib/less/parser.rb:57:in `to_css'
        /users/elevine/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/tilt-1.3.3/lib/tilt/css.rb:68:in `evaluate'
        /users/elevine/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/tilt-1.3.3/lib/tilt/template.rb:76:in `render'
        /users/elevine/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/sinatra-1.3.3/lib/sinatra/base.rb:686:in `render'
        /users/elevine/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/sinatra-assetpack-0.0.11/lib/sinatra/assetpack/class_methods.rb:71:in `block (3 levels) in add_individual_routes!'
        /users/elevine/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/tilt-1.3.3/lib/tilt.rb:127:in `fetch'
        /users/elevine/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/sinatra-assetpack-0.0.11/lib/sinatra/assetpack/class_methods.rb:70:in `block (2 levels) in add_individual_routes!'

.tab-focus在 mixins.less 中定义，此错误源自 reset.less，它是 bootstrap.less 中的第一个导入。我尝试重新排列导入的顺序，但并没有解决问题。

是否可以让 bootstrap.less 中的 @import 语句在此设置中正常工作？

4

2 回答 2

2

最近有很多关于 AssetPack gem 的工作（现在内置的支持较少）。如果您更新到最新的 gem，就很容易让 Less 工作。这个要点有一个完整的例子：https ://gist.github.com/4652773 。

于 2013-01-28T04:16:07.230 回答
0

我发现的最佳解决方案是简单地将较少文件的路径添加到Less.path数组中。无需更改任何原始的less文件。

例如：

require 'sinatra/base'
require 'sinatra/assetpack'

class App < Sinatra::Base
  set :root, File.dirname(__FILE__)
  Less.paths <<  "#{App.root}/app/css" 

  register Sinatra::AssetPack

  assets do
    css :bootstrap, [
      '/css/bootstrap.css'
    ]

  end

  get '/' do
    erb :index
  end

  # start the server if ruby file executed directly
  run! if app_file == $0
end
于 2012-08-23T20:32:02.323 回答