ruby - 如何让 Twitter Bootstrap 的 Less 文件与 Sinatra AssetPack 一起使用？

Question

我正在尝试让 Bootstrap 的 Less 文件与 Sinatra AssetPack 一起工作，但我收到的解析器错误较少。这些错误让我相信通过 bootstrap.less 导入的 less 文件是相互不知道的。

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 目录并修改 bootstrap.less 以便每个 @import 语句以 .css 而不是 .less 结尾(实际文件虽然扩展名没有改变)。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 是在mixins.less 中定义的，这个错误来源于reset.less，这是bootstrap.less 中的第一个import。我试过重新排列导入的顺序，但没有解决问题。

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

Answer 1

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，则很容易让 Less 工作。这个要点有一个完整的例子:https://gist.github.com/4652773 .