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A fleet of Raft consensus groups

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raft_fleet lib raft_fleet consensus_member_sup.ex
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lib/raft_fleet/consensus_member_sup.ex 

use Croma



defmodule RaftFleet.ConsensusMemberSup do

  alias RaftFleet.Config



  defmodule RaftedValueWrapper do

    defun start_link(group_info :: RaftedValue.consensus_group_info, name :: atom) :: GenServer.on_start do

      options = [

        {:name, name},

        case Config.persistence_dir_parent() do

          nil -> nil

          dir -> {:persistence_dir, Path.join(dir, Atom.to_string(name))}

        end,

        case Config.rafted_value_test_inject_fault_after_add_follower() do

          nil  -> nil

          atom -> {:test_inject_fault_after_add_follower, atom}

        end

      ] |> Enum.reject(&is_nil/1)

      RaftedValue.start_link(group_info, options)

    end

  end



  defun start_link() :: {:ok, pid} do

    spec = Supervisor.Spec.worker(RaftedValueWrapper, [], [restart: :temporary])

    Supervisor.start_link([spec], [strategy: :simple_one_for_one, name: __MODULE__])

  end

end