Fix compatibility with Loggers in Elixir 1.15+

config/config.exs

@@ -132,6 +132,8 @@ config :pleroma, Pleroma.Web.Endpoint,
   ]
 
 # Configures Elixir's Logger
+config :logger, backends: [:console]
+
 config :logger, :console,
   level: :debug,
   format: "\n$time $metadata[$level] $message\n",

config/description.exs

@@ -1237,8 +1237,8 @@ config :pleroma, :config_description, [
         key: :backends,
         type: [:atom, :tuple, :module],
         description:
-          "Where logs will be sent, :console - send logs to stdout, { ExSyslogger, :ex_syslogger } - to syslog, Quack.Logger - to Slack.",
-        suggestions: [:console, {ExSyslogger, :ex_syslogger}]
+          "Where logs will be sent, Logger.Backends.Console - send logs to stdout, { ExSyslogger, :ex_syslogger } - to syslog.",
+        suggestions: [Logger.Backends.Console, {ExSyslogger, :ex_syslogger}]
       }
     ]
   },
@@ -1278,7 +1278,7 @@ config :pleroma, :config_description, [
   %{
     group: :logger,
     type: :group,
-    key: :console,
+    key: Logger.Backends.Console,
     label: "Console Logger",
     description: "Console logger settings",
     children: [

config/dev.exs

@@ -36,7 +36,7 @@ config :pleroma, Pleroma.Emails.Mailer, adapter: Swoosh.Adapters.Local
 # different ports.
 
 # Do not include timestamps in development logs
-config :logger, :console, format: "$metadata[$level] $message\n"
+config :logger, Logger.Backends.Console, format: "$metadata[$level] $message\n"
 
 # Set a higher stacktrace during development. Avoid configuring such
 # in production as building large stacktraces may be expensive.

config/prod.exs

@@ -20,7 +20,7 @@ config :pleroma, Pleroma.Web.Endpoint,
 config :phoenix, serve_endpoints: true
 
 # Do not print debug messages in production
-config :logger, :console, level: :info
+config :logger, Logger.Backends.Console, level: :info
 config :logger, :ex_syslogger, level: :info
 
 # ## SSL Support

lib/pleroma/config/transfer_task.ex

@@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2023 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Config.TransferTask do
@@ -13,6 +13,13 @@ defmodule Pleroma.Config.TransferTask do
 
   @type env() :: :test | :benchmark | :dev | :prod
 
+  @add_backend if Version.match?(System.version(), "< 1.15.0-rc.0"),
+                 do: &Logger.add_backend/1,
+                 else: &LoggerBackends.add/1
+  @remove_backend if Version.match?(System.version(), "< 1.15.0-rc.0"),
+                    do: &Logger.remove_backend/1,
+                    else: &LoggerBackends.remove/1
+
   defp reboot_time_keys,
     do: [
       {:pleroma, :hackney_pools},
@@ -105,26 +112,30 @@ defmodule Pleroma.Config.TransferTask do
   # change logger configuration in runtime, without restart
   defp configure({_, :backends, _, merged}) do
     # removing current backends
-    Enum.each(Application.get_env(:logger, :backends), &Logger.remove_backend/1)
+    Enum.each(Application.get_env(:logger, :backends), @remove_backend)
 
-    Enum.each(merged, &Logger.add_backend/1)
+    Enum.each(merged, @add_backend)
 
     :ok = update_env(:logger, :backends, merged)
   end
 
-  defp configure({_, key, _, merged}) when key in [:console, :ex_syslogger] do
+  defp configure({_, key, _, merged})
+       when key in [:console, Logger.Backends.Console, :ex_syslogger] do
+    backend =
+      case key do
+        :ex_syslogger -> {ExSyslogger, :ex_syslogger}
+        :console -> Logger.Backends.Console
+        Logger.Backends.Console -> Logger.Backends.Console
+        key -> key
+      end
+
     merged =
-      if key == :console do
+      if backend == Logger.Backends.Console do
         put_in(merged[:format], merged[:format] <> "\n")
       else
         merged
       end
 
-    backend =
-      if key == :ex_syslogger,
-        do: {ExSyslogger, :ex_syslogger},
-        else: key
-
     Logger.configure_backend(backend, merged)
     :ok = update_env(:logger, key, merged)
   end

lib/pleroma/config_db.ex

@@ -385,7 +385,12 @@ defmodule Pleroma.ConfigDB do
 
   @spec module_name?(String.t()) :: boolean()
   def module_name?(string) do
-    Regex.match?(~r/^(Pleroma|Phoenix|Tesla|Ueberauth|Swoosh)\./, string) or
-      string in ["Oban", "Ueberauth", "ExSyslogger", "ConcurrentLimiter"]
+    if String.contains?(string, ".") do
+      [name | _] = String.split(string, ".", parts: 2)
+
+      name in ~w[Pleroma Phoenix Tesla Ueberauth Swoosh Logger LoggerBackends]
+    else
+      string in ~w[Oban Ueberauth ExSyslogger ConcurrentLimiter]
+    end
   end
 end

mix.exs

@@ -109,6 +109,14 @@ defmodule Pleroma.Mixfile do
     for s <- oauth_strategy_packages, do: {String.to_atom(s), ">= 0.0.0"}
   end
 
+  defp logger_deps do
+    if Version.match?(System.version(), "<1.15.0-rc.0") do
+      []
+    else
+      [{:logger_backends, "~> 1.0"}]
+    end
+  end
+
   # Specifies your project dependencies.
   #
   # Type `mix help deps` for examples and options.
@@ -197,7 +205,7 @@ defmodule Pleroma.Mixfile do
       {:websockex, "~> 0.4.3", only: :test},
       {:benchee, "~> 1.0", only: :benchmark},
       {:dialyxir, "~> 1.4", only: [:dev, :test], runtime: false}
-    ] ++ oauth_deps()
+    ] ++ oauth_deps() ++ logger_deps()
   end
 
   # Aliases are shortcuts or tasks specific to the current project.