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ua_inspector

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User agent parser library

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ua_inspector lib ua_inspector util yaml.ex
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lib/ua_inspector/util/yaml.ex 

defmodule UAInspector.Util.YAML do

  @moduledoc false



  alias UAInspector.Config



  @doc """

  Reads a yaml file and returns the contents.

  """

  @spec read_file(Path.t()) :: {:ok, term} | {:error, File.posix()}

  def read_file(file) do

    case File.stat(file) do

      {:ok, _} ->

        {reader_mod, reader_fun, reader_extra_args} = Config.yaml_file_reader()



        reader_mod

        |> apply(reader_fun, [file | reader_extra_args])

        |> maybe_hd()



      error ->

        error

    end

  end



  defp maybe_hd([]), do: {:ok, []}

  defp maybe_hd([data | _]), do: {:ok, data}

end