[Enhancement] Add support for yt-dlp plugins + add lifecycle script event for app boot

docker/selfhosted.Dockerfile

@@ -7,7 +7,7 @@
 ARG BUILDER_IMAGE="hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}"
 ARG RUNNER_IMAGE="debian:${DEBIAN_VERSION}"
 
 FROM ${BUILDER_IMAGE} as builder
 
 ARG TARGETPLATFORM
 RUN echo "Building for ${TARGETPLATFORM:?}"
@@ -88,6 +88,7 @@
       ca-certificates \
       python3-mutagen \
       curl \
+      zip \
       openssh-client \
       nano \
       python3 \
@@ -109,14 +110,15 @@
     rm -rf /var/lib/apt/lists/*
 
 # More locale setup
 ENV LANG en_US.UTF-8
 ENV LANGUAGE en_US:en
 ENV LC_ALL en_US.UTF-8
 
 WORKDIR "/app"
 
 # Set up data volumes
-RUN mkdir /config /downloads /etc/elixir_tzdata_data && chmod ugo+rw /etc/elixir_tzdata_data
+RUN mkdir -p /config /downloads /etc/elixir_tzdata_data /etc/yt-dlp/plugins && \ 
+  chmod ugo+rw /etc/elixir_tzdata_data /etc/yt-dlp /etc/yt-dlp/plugins
 
 # set runner ENV
 ENV MIX_ENV="prod"

lib/pinchflat/boot/pre_job_startup_tasks.ex

@@ -16,6 +16,8 @@ defmodule Pinchflat.Boot.PreJobStartupTasks do
   alias Pinchflat.Settings
   alias Pinchflat.Utils.FilesystemUtils
 
+  alias Pinchflat.Lifecycle.UserScripts.CommandRunner, as: UserScriptRunner
+
   def start_link(opts \\ []) do
     GenServer.start_link(__MODULE__, %{}, opts)
   end
@@ -36,6 +38,7 @@ defmodule Pinchflat.Boot.PreJobStartupTasks do
     create_blank_yt_dlp_files()
     create_blank_user_script_file()
     apply_default_settings()
+    run_app_init_script()
 
     {:ok, state}
   end
@@ -95,6 +98,12 @@ defmodule Pinchflat.Boot.PreJobStartupTasks do
     Settings.set(apprise_version: apprise_version)
   end
 
+  defp run_app_init_script do
+    runner = Application.get_env(:pinchflat, :user_script_runner, UserScriptRunner)
+
+    runner.run(:app_init, %{})
+  end
+
   defp yt_dlp_runner do
     Application.get_env(:pinchflat, :yt_dlp_runner)
   end

lib/pinchflat/lifecycle/user_scripts/command_runner.ex

@@ -12,6 +12,7 @@ defmodule Pinchflat.Lifecycle.UserScripts.CommandRunner do
   @behaviour UserScriptCommandRunner
 
   @event_types [
+    :app_init,
     :media_pre_download,
     :media_downloaded,
     :media_deleted

lib/pinchflat/release.ex

@@ -29,6 +29,8 @@ defmodule Pinchflat.Release do
       [
         "/config",
         "/downloads",
+        "/etc/yt-dlp",
+        "/etc/yt-dlp/plugins",
         Application.get_env(:pinchflat, :media_directory),
         Application.get_env(:pinchflat, :tmpfile_directory),
         Application.get_env(:pinchflat, :extras_directory),

test/pinchflat/boot/pre_job_startup_tasks_test.exs

@@ -9,6 +9,7 @@ defmodule Pinchflat.Boot.PreJobStartupTasksTest do
   setup do
     stub(YtDlpRunnerMock, :version, fn -> {:ok, "1"} end)
     stub(AppriseRunnerMock, :version, fn -> {:ok, "2"} end)
+    stub(UserScriptRunnerMock, :run, fn _event_type, _data -> {:ok, "3", 0} end)
 
     :ok
   end
@@ -112,4 +113,16 @@ defmodule Pinchflat.Boot.PreJobStartupTasksTest do
       assert Settings.get!(:apprise_version)
     end
   end
+
+  describe "run_app_init_script" do
+    test "calls the app_init user script runner" do
+      expect(UserScriptRunnerMock, :run, fn :app_init, data ->
+        assert data == %{}
+
+        {:ok, "", 0}
+      end)
+
+      PreJobStartupTasks.init(%{})
+    end
+  end
 end