gistfile1.ex

  def run(args, generator \\ &ExDoc.generate_docs/3) do
    {opts, args, _} = OptionParser.parse(args,
               aliases: [o: :output, f: :formatter, u: :source_url, r: :source_root,
                         m: :main, p: :homepage_url, c: :config])

    [project, version, source_beam] = parse_args(args)

    Code.prepend_path(source_beam)
    opts =
      opts
      |> Keyword.put(:source_beam, source_beam)
      |> merge_config()

    generator.(project, version, opts)
  end

  defp merge_config(opts) do
    IO.puts "MERGE CONFIG"
    case Keyword.fetch(opts, :config) do
      {:ok, config} ->
        opts
        |> Keyword.delete(:config)
        |> Keyword.put(:formatter_opts, read_config(config))
      _ -> opts
    end
  end