mobilizon/lib/mix/tasks/mobilizon/ecto.ex

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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.Mobilizon.Ecto do
@moduledoc """
Provides tools for Ecto-related tasks (such as migrations)
"""
@doc """
Ensures the given repository's migrations path exists on the file system.
"""
@spec ensure_migrations_path(Ecto.Repo.t(), Keyword.t()) :: String.t() | no_return
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(:mobilizon), 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(:mobilizon), priv)
end
@spec raise_missing_migrations(String.t(), Ecto.Repo.t()) :: no_return
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