module Jeweler::Specification

def self.filelist_attribute(name)
  code = %{
    def #{name}
      @#{name} ||= FileList[]
    end
    def #{name}=(value)
      @#{name} = FileList[value]
    end
  }
  module_eval code, __FILE__, __LINE__ - 9
end

def blank?(value)
  value.nil? || value.empty?
end

def ruby_code(obj)
  case obj
  when Rake::FileList then obj.to_a.inspect
  else super
  end
end

def set_jeweler_defaults(base_dir)
  Dir.chdir(base_dir) do
    if blank?(files) && File.directory?(File.join(base_dir, '.git'))
      repo = Git.open(base_dir)
      self.files = repo.ls_files.keys - repo.lib.ignored_files
    end
    if blank?(test_files) && File.directory?(File.join(base_dir, '.git'))
      repo = Git.open(base_dir)
      self.test_files = FileList['{spec,test,examples}/**/*.rb'] - repo.lib.ignored_files
    end
    if blank?(executables)
      self.executables = Dir["bin/*"].map { |f| File.basename(f) }
    end
    self.has_rdoc = true
    rdoc_options << '--charset=UTF-8'
    if blank?(extra_rdoc_files)
      self.extra_rdoc_files = FileList["README*", "ChangeLog*", "LICENSE*"]
    end
  end
end