lightweight-memoize.ex

defmodule Common.MixTools do

  # WE 
  def get_version do
    try do
      :ets.new(:version_cache, [:named_table, :set, :public])
    rescue 
      [ArgumentError] -> nil
    end
    case :ets.lookup(:version_cache, 'version') do
      [] ->
        val = get_version_int()
        :ets.insert(:version_cache, { 'version', val })
        val
      [{ 'version', val }] ->
        val
    end
  end

  defp get_version_int do