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Composable Igniter tasks for bootstrapping Phoenix applications

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project lib mix tasks project add uuidv7.ex
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lib/mix/tasks/project/add/uuidv7.ex 

defmodule Mix.Tasks.Project.Add.Uuidv7 do

  @shortdoc "Adds UUIDv7 support"

  @moduledoc "Adds `uuidv7` for time-sortable UUIDs."

  use Igniter.Mix.Task



  @impl Igniter.Mix.Task

  def igniter(igniter) do

    igniter

    |> add_dep()

    |> update_schema()

  end



  defp add_dep(igniter) do

    {package, version} = Igniter.Project.Deps.determine_dep_type_and_version!("uuidv7")

    Igniter.Project.Deps.add_dep(igniter, {package, version})

  end



  defp update_schema(igniter) do

    app_name = Igniter.Project.Application.app_name(igniter)

    schema_path = "lib/#{app_name}/schema.ex"



    if Igniter.exists?(igniter, schema_path) do

      Igniter.update_file(igniter, schema_path, fn source ->

        content = Rewrite.Source.get(source, :content)

        updated = String.replace(content, ":binary_id", "UUIDv7")

        Rewrite.Source.update(source, :content, updated)

      end)

    else

      igniter

    end

  end

end