philomena/lib/philomena/analyzers/svg.ex

defmodule Philomena.Analyzers.Svg do
  def analyze(file) do
    stats = stats(file)

    %{
      extension: "svg",
      mime_type: "image/svg+xml",
      animated?: false,
      duration: 0.0,
      dimensions: stats.dimensions
    }
  end

  defp stats(file) do
    case System.cmd("identify", ["-format", "%W %H\n", file]) do
      {output, 0} ->
        [width, height] =
          output
          |> String.trim()
          |> String.split(" ")
          |> Enum.map(&String.to_integer/1)

        %{dimensions: {width, height}}

      _ ->
        %{dimensions: {0, 0}}
    end
  end
end