defmodule Demo.Release do @app :demo def migrate do load_app() for repo <- repos() do {:ok, _, _} = Ecto.Migrator.with_repo(repo, &Ecto.Migrator.run(&1, :up, all: true)) end end def rollback(repo, version) do load_app() {:ok, _, _} = Ecto.Migrator.with_repo(repo, &Ecto.Migrator.run(&1, :down, to: version)) end defp repos do Application.fetch_env!(@app, :ecto_repos) end defp load_app do Application.load(@app) end end