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workshop

0.4.3
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Mix tasks for creating and running interactive workshops for teaching people how to program in Elixir, and other things.

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workshop lib workshop info.ex
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lib/workshop/info.ex 

defmodule Workshop.Info do

  @doc false

  defmacro __using__(_opts) do

    quote do

      Enum.each [:title, :version, :generator_version, :home, :description, :shortdesc, :introduction, :debriefing],

        &Module.register_attribute(__MODULE__, &1, persist: true)

    end

  end



  @spec get(atom, atom) :: String.t | nil

  def get(module, subject) when is_atom(module) and is_atom(subject) do

    case List.keyfind module.__info__(:attributes), subject, 0 do

      {:shortdesc, [false]} ->

        false

      {^subject, [content|_]} ->

        content

      _ ->

        nil

    end

  end

end