github_event.ex

defmodule SetGithubEvents do
  import Plug.Conn

  def init(opts), do: opts

  def call(conn, _) do
    event = List.keyfind(conn.req_headers, signature_header(), 0)

    conn
    |> handle_event(event)
  end

  defp handle_event(%{params: params} = conn, {_, "status"}) do
    conn
  end

  defp handle_event(conn, _) do
    conn
  end

  defp signature_header, do: Application.get_env(:forge, :github_event_header, "x-github-event")
end