[Enhancement] Auto-update yt-dlp (#589)

* Added a command for updating yt-dlp

* Added a yt-dlp update worker to run daily

* Added a new file that runs post-boot when the app is ready to serve requests; put yt-dlp updater in there

* Updated config to expose the current env globally; updated startup tasks to not run in test env

* Removes unneeded test code

test/pinchflat/boot/post_boot_startup_tasks_test.exs

@@ -0,0 +1,16 @@
+defmodule Pinchflat.Boot.PostBootStartupTasksTest do
+  use Pinchflat.DataCase
+
+  alias Pinchflat.YtDlp.UpdateWorker
+  alias Pinchflat.Boot.PostBootStartupTasks
+
+  describe "update_yt_dlp" do
+    test "enqueues an update job" do
+      assert [] = all_enqueued(worker: UpdateWorker)
+
+      PostBootStartupTasks.init(%{})
+
+      assert [%Oban.Job{}] = all_enqueued(worker: UpdateWorker)
+    end
+  end
+end

test/pinchflat/yt_dlp/command_runner_test.exs

@@ -154,6 +154,14 @@ defmodule Pinchflat.YtDlp.CommandRunnerTest do
     end
   end
 
+  describe "update/0" do
+    test "adds the update arg" do
+      assert {:ok, output} = Runner.update()
+
+      assert String.contains?(output, "--update")
+    end
+  end
+
   defp wrap_executable(new_executable, fun) do
     Application.put_env(:pinchflat, :yt_dlp_executable, new_executable)
     fun.()

test/pinchflat/yt_dlp/update_worker_test.exs

@@ -0,0 +1,24 @@
+defmodule Pinchflat.YtDlp.UpdateWorkerTest do
+  use Pinchflat.DataCase
+
+  alias Pinchflat.Settings
+  alias Pinchflat.YtDlp.UpdateWorker
+
+  describe "perform/1" do
+    test "calls the yt-dlp runner to update yt-dlp" do
+      expect(YtDlpRunnerMock, :update, fn -> {:ok, ""} end)
+      expect(YtDlpRunnerMock, :version, fn -> {:ok, ""} end)
+
+      perform_job(UpdateWorker, %{})
+    end
+
+    test "saves the new version to the database" do
+      expect(YtDlpRunnerMock, :update, fn -> {:ok, ""} end)
+      expect(YtDlpRunnerMock, :version, fn -> {:ok, "1.2.3"} end)
+
+      perform_job(UpdateWorker, %{})
+
+      assert {:ok, "1.2.3"} = Settings.get(:yt_dlp_version)
+    end
+  end
+end