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ex_open_api_utils

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Elixir utilities for OpenAPI 3.1 schema generation from Ecto schemas

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ex_open_api_utils lib mix tasks ex_open_api_utils.spec.yaml.ex
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lib/mix/tasks/ex_open_api_utils.spec.yaml.ex 

defmodule Mix.Tasks.ExOpenApiUtils.Spec.Yaml do

  use Mix.Task

  require Mix.Generator



  @default_filename "openapi.yaml"

  @dialyzer {:nowarn_function, encoder: 0}



  @impl Mix.Task

  def run(argv) do

    {opts, _, _} = OptionParser.parse(argv, strict: [start_app: :boolean])



    Keyword.get(opts, :start_app, true) |> maybe_start_app()

    OpenApiSpex.ExportSpec.call(argv, &encode/2, @default_filename)

  end



  defp maybe_start_app(true), do: Mix.Task.run("app.start")

  defp maybe_start_app(_), do: Mix.Task.run("app.config", preload_modules: true)



  defp encode(spec, opts) do

    spec

    |> encoder().encode(opts)

    |> case do

      {:ok, yaml} ->

        yaml



      {:error, error} ->

        Mix.raise("could not encode #{inspect(spec)}, error: #{inspect(error)}.")

    end

  end



  defp encoder do

    OpenApiSpex.OpenApi.yaml_encoder() ||

      Mix.raise(

        "could not load YAML encoder, please add one of supported encoders to dependencies."

      )

  end

end