module Middleman::CoreExtensions::Builder::ClassMethods

def after_build(&block)
  @run_after_build ||= []
  @run_after_build << block
end

def after_build_callbacks
  @run_after_build ||= []
  @run_after_build
end

def build_reroute(&block)
  @build_rerouters ||= []
  @build_rerouters << block
end

def reroute_builder(desination, request_path)
  @build_rerouters ||= []
  
  result = [desination, request_path]
  
  @build_rerouters.each do |block|
    output = block.call(desination, request_path)
    if output
      result = output
      break
    end
  end
  
  result
end