deprecation warnings

lib/pleroma/config/deprecation_warnings.ex

@@ -56,6 +56,7 @@ defmodule Pleroma.Config.DeprecationWarnings do
     check_old_mrf_config()
     check_media_proxy_whitelist_config()
     check_welcome_message_config()
+    check_gun_pool_options()
   end
 
   def check_welcome_message_config do
@@ -115,4 +116,46 @@ defmodule Pleroma.Config.DeprecationWarnings do
       """)
     end
   end
+
+  def check_gun_pool_options do
+    pool_config = Config.get(:connections_pool)
+
+    if timeout = pool_config[:await_up_timeout] do
+      Logger.warn("""
+      !!!DEPRECATION WARNING!!!
+      Your config is using old setting name `await_up_timeout` instead of `connect_timeout`. Setting should work for now, but you are advised to change format to scheme with port to prevent possible issues later.
+      """)
+
+      Config.put(:connections_pool, Keyword.put_new(pool_config, :connect_timeout, timeout))
+    end
+
+    pools_configs = Config.get(:pools)
+
+    warning_preface = """
+    !!!DEPRECATION WARNING!!!
+    Your config is using old setting name `timeout` instead of `recv_timeout` in pool settings. Setting should work for now, but you are advised to change format to scheme with port to prevent possible issues later.
+    """
+
+    updated_config =
+      Enum.reduce(pools_configs, [], fn {pool_name, config}, acc ->
+        if timeout = config[:timeout] do
+          Keyword.put(acc, pool_name, Keyword.put_new(config, :recv_timeout, timeout))
+        else
+          acc
+        end
+      end)
+
+    if updated_config != [] do
+      pool_warnings =
+        updated_config
+        |> Keyword.keys()
+        |> Enum.map(fn pool_name ->
+          "\n* `:timeout` options in #{pool_name} pool is now `:recv_timeout`"
+        end)
+
+      Logger.warn(Enum.join([warning_preface | pool_warnings]))
+
+      Config.put(:pools, updated_config)
+    end
+  end
 end