You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: destroy-scaffold.rb
    path of file: ./repos/eucalypt/lib/eucalypt/destroy/namespaces/destroy/cli
    
    the code of the file until where you have to start completion: require_relative 'destroy-con
    
    def scaffold(name = nil)
      directory = File.expand_path('.')
      if Eucalypt.app? directory
        scaffolds = Dir[File.join directory, 'app', '{controllers,models,helpers}', '*.rb'].map do |f|
          File.basename(f).split(?_).first.split(?.).first
        end

        scaffolds.reject!{|f|f == 'main'}
        scaffolds.uniq!

        if scaffolds.empty?
          Eucalypt::Error.no_scaffolds
          return
        end