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kaguya

0.5.2
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A small, powerful, and modular IRC bot framework. Using a flexible macro based routing system, modules can be easily created and used.

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kaguya lib kaguya module_supervisor.ex
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lib/kaguya/module_supervisor.ex 

defmodule Kaguya.ModuleSupervisor do

  use Supervisor

  require Logger



  @moduledoc """

  Module supervisor. It runs all modules specified in the :modules

  configuration option for :kaguya.

  """



  def start_link(opts \\ []) do

    Supervisor.start_link(__MODULE__, :ok, opts)

  end



  def init(:ok) do

    Logger.log :debug, "Starting modules!"

    load_modules()

    |> Enum.reverse

    |> Enum.map(fn module -> worker(module, []) end)

    |> supervise(strategy: :one_for_one)

  end



  defp load_modules do

    :code.get_path

    |> Enum.reduce([], fn path, modules ->

      {:ok, files} = :erl_prim_loader.list_dir(path |> to_char_list)

      [Enum.reduce(files, [], &match_module/2)|modules]

    end)

    |> List.flatten

  end



  @module_re ~r/(?<module>.*).Kaguya_Module.beam$/



  defp match_module(file, modules) do

    captures = Regex.named_captures(@module_re,  List.to_string(file))

    case captures do

      %{"module" => mod_name} ->

        mod = String.to_atom(mod_name)

        [mod|modules]

      nil -> modules

    end

  end

end