# File lib/heroku/command/base.rb, line 159
  def extract_app_in_dir(dir)
    return unless remotes = git_remotes(dir)

    if remote = options[:remote]
      remotes[remote]
    elsif remote = extract_app_from_git_config
      remotes[remote]
    else
      apps = remotes.values.uniq
      return apps.first if apps.size == 1
    end
  end