# File lib/heroku/commands/base.rb, line 32
    def extract_app_in_dir(dir)
      return unless remotes = git_remotes(dir)

      if remote = extract_option('--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