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quantum

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Cron-like job scheduler for Elixir.

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quantum lib quantum util.ex
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lib/quantum/util.ex 

defmodule Quantum.Util do

  @moduledoc """

  Functions that have no place to belong

  """



  @doc """

  Start a GenServer or Link if already started

  """

  @deprecated "Replaced by swarm"

  @spec start_or_link(GenServer.on_start()) :: GenServer.on_start()

  def start_or_link({:error, {:already_started, pid}}) when is_pid(pid) do

    Process.link(pid)

    {:ok, pid}

  end



  def start_or_link(other) do

    other

  end



  # credo:disable-for-next-line Credo.Check.Design.TagTODO

  # TODO: Remove when gen_stage:0.12 support is dropped

  def gen_stage_v12? do

    Application.load(:gen_stage)



    Application.loaded_applications()

    |> Enum.find_value(nil, fn

      {:gen_stage, _, version} -> version

      _ -> false

    end)

    |> to_string

    |> Version.match?("< 0.13.0")

  end

end