restarting pleroma from outside application

lib/pleroma/web/admin_api/admin_api_controller.ex

@@ -890,17 +890,36 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
           Ecto.get_meta(config, :state) == :deleted
         end)
 
-      Pleroma.Config.TransferTask.load_and_update_env(deleted)
+      Pleroma.Config.TransferTask.load_and_update_env(deleted, false)
 
-      Mix.Tasks.Pleroma.Config.run([
-        "migrate_from_db",
-        "--env",
-        to_string(Pleroma.Config.get(:env))
-      ])
+      need_reboot? =
+        Enum.any?(updated, fn config ->
+          group = ConfigDB.from_string(config.group)
+          key = ConfigDB.from_string(config.key)
+          value = ConfigDB.from_binary(config.value)
+          Pleroma.Config.TransferTask.pleroma_need_restart?(group, key, value)
+        end)
+
+      response = %{configs: updated}
+
+      response =
+        if need_reboot?, do: Map.put(response, :need_reboot, need_reboot?), else: response
 
       conn
       |> put_view(ConfigView)
-      |> render("index.json", %{configs: updated})
+      |> render("index.json", response)
+    end
+  end
+
+  def restart(conn, _params) do
+    with :ok <- configurable_from_database(conn) do
+      if Pleroma.Config.get(:env) == :test do
+        Logger.warn("pleroma restarted")
+      else
+        send(Restarter.Pleroma, {:restart, 50})
+      end
+
+      json(conn, %{})
     end
   end
 

lib/pleroma/web/admin_api/views/config_view.ex

@@ -5,10 +5,16 @@
 defmodule Pleroma.Web.AdminAPI.ConfigView do
   use Pleroma.Web, :view
 
-  def render("index.json", %{configs: configs}) do
-    %{
+  def render("index.json", %{configs: configs} = params) do
+    map = %{
       configs: render_many(configs, __MODULE__, "show.json", as: :config)
     }
+
+    if params[:need_reboot] do
+      Map.put(map, :need_reboot, true)
+    else
+      map
+    end
   end
 
   def render("show.json", %{config: config}) do

lib/pleroma/web/router.ex

@@ -197,6 +197,7 @@ defmodule Pleroma.Web.Router do
     post("/config", AdminAPIController, :config_update)
     get("/config/descriptions", AdminAPIController, :config_descriptions)
     get("/config/migrate_from_db", AdminAPIController, :migrate_from_db)
+    get("/restart", AdminAPIController, :restart)
 
     get("/moderation_log", AdminAPIController, :list_log)