lib/omnibus/fetchers/git_fetcher.rb
def dir_empty?(dir)
      Dir.entries(dir).reject { |d| [".", ".."].include?(d) }.empty?
    end
def dir_empty?(dir)
      Dir.entries(dir).reject { |d| [".", ".."].include?(d) }.empty?
    end
Determine if a directory is empty

 @return [true, false]