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# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Config.Loader do
@reject_groups [
:postgrex,
:tesla,
:phoenix,
:tzdata,
:http_signatures,
:web_push_encryption,
:floki,
:pbkdf2_elixir
]
@reject_keys [
Pleroma.Repo,
Pleroma.Web.Endpoint,
:env,
:configurable_from_database,
:database,
:ecto_repos,
Pleroma.Gun,
Pleroma.ReverseProxy.Client,
Pleroma.Web.Auth.Authenticator
]
if Code.ensure_loaded?(Config.Reader) do
@reader Config.Reader
@config_header "import Config\r\n\r\n"
else
# support for Elixir less than 1.9
@reader Mix.Config
@config_header "use Mix.Config\r\n\r\n"
end
@spec read!(Path.t()) :: keyword()
def read!(path), do: @reader.read!(path)
@spec merge(keyword(), keyword()) :: keyword()
def merge(c1, c2), do: @reader.merge(c1, c2)
@spec config_header() :: String.t()
def config_header, do: @config_header
@spec default_config() :: keyword()
def default_config do
config =
"config/config.exs"
|> read!()
|> filter()
logger_config =
:logger
|> Application.get_all_env()
|> Enum.filter(fn {key, _} -> key in [:backends, :console, :ex_syslogger] end)
merge(config, logger: logger_config)
end
@spec filter(keyword()) :: keyword()
def filter(configs) do
Enum.reduce(configs, [], fn
{group, _settings}, group_acc when group in @reject_groups ->
group_acc
{group, settings}, group_acc ->
Enum.reduce(settings, group_acc, fn
{key, _value}, acc when key in @reject_keys -> acc
setting, acc -> Keyword.update(acc, group, [setting], &Keyword.merge(&1, [setting]))
end)
end)
end
end
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