Assigns default option values.

Examples

iex> Options.assign_defaults(%{}) |> Map.has_key?(:depth)
true

iex> Options.assign_defaults(%{}) |> Map.get(:max_depths)
3

iex> Options.assign_defaults(%{max_depths: 4}) |> Map.get(:max_depths)
4

Takes the url argument and puts it in the opts.

The opts map gets passed around internally and eventually gets stored in the registry.

Examples

iex> Options.assign_url(%{}, "http://options/")
%{url: "http://options/"}

iex> Options.assign_url(%{url: "http://example.com/"}, "http://options/")
%{url: "http://options/"}