Add custom task to update tz_world data

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

lib/mix/tasks/mobilizon/tz_world/update.ex

@@ -0,0 +1,34 @@
+# Portions of this file are derived from Pleroma:
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Mix.Tasks.Mobilizon.TzWorld.Update do
+  use Mix.Task
+  alias Mix.Tasks.TzWorld.Update, as: TzWorldUpdate
+  import Mix.Tasks.Mobilizon.Common
+  require Logger
+
+  @shortdoc "Wrapper on `tz_world.update` task."
+
+  @moduledoc """
+  Changes `Logger` level to `:info` before downloading.
+  Changes level back when downloads ends.
+
+  ## Update TzWorld data
+
+      mix mobilizon.tz_world.update
+  """
+
+  @impl true
+  def run(_args) do
+    start_mobilizon()
+
+    level = Logger.level()
+    Logger.configure(level: :info)
+
+    TzWorldUpdate.run(nil)
+
+    Logger.configure(level: level)
+  end
+end