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+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-onl
+
+defmodule Mix.Tasks.Pleroma.Ecto do
+ @doc """
+ Ensures the given repository's migrations path exists on the file system.
+ """
+ @spec ensure_migrations_path(Ecto.Repo.t(), Keyword.t()) :: String.t()
+ def ensure_migrations_path(repo, opts) do
+ path = opts[:migrations_path] || Path.join(source_repo_priv(repo), "migrations")
+
+ path =
+ case Path.type(path) do
+ :relative ->
+ Path.join(Application.app_dir(:pleroma), path)
+
+ :absolute ->
+ path
+ end
+
+ if not File.dir?(path) do
+ raise_missing_migrations(Path.relative_to_cwd(path), repo)
+ end
+
+ path
+ end
+
+ @doc """
+ Returns the private repository path relative to the source.
+ """
+ def source_repo_priv(repo) do
+ config = repo.config()
+ priv = config[:priv] || "priv/#{repo |> Module.split() |> List.last() |> Macro.underscore()}"
+ Path.join(Application.app_dir(:pleroma), priv)
+ end
+
+ defp raise_missing_migrations(path, repo) do
+ raise("""
+ Could not find migrations directory #{inspect(path)}
+ for repo #{inspect(repo)}.
+ This may be because you are in a new project and the
+ migration directory has not been created yet. Creating an
+ empty directory at the path above will fix this error.
+ If you expected existing migrations to be found, please
+ make sure your repository has been properly configured
+ and the configured path exists.
+ """)
+ end
+end