pinchflat/lib/pinchflat/boot/pre_job_startup_tasks.ex
Kieran b1a6a6a81f
[Bugfix] Fix yt-dlp illegal write issue that causes failure to fetch source details (#247)
* Bandaid fix for yt-dlp write issue

* Ensured tempfile directory on app boot
2024-05-15 17:32:56 -07:00

105 lines
3 KiB
Elixir

defmodule Pinchflat.Boot.PreJobStartupTasks do
@moduledoc """
This module is responsible for running startup tasks on app boot
BEFORE the job runner has initiallized.
It's a GenServer because that plays REALLY nicely with the existing
Phoenix supervision tree.
"""
# restart: :temporary means that this process will never be restarted (ie: will run once and then die)
use GenServer, restart: :temporary
import Ecto.Query, warn: false
require Logger
alias Pinchflat.Repo
alias Pinchflat.Settings
alias Pinchflat.Utils.FilesystemUtils
def start_link(opts \\ []) do
GenServer.start_link(__MODULE__, %{}, opts)
end
@doc """
Runs application startup tasks.
Any code defined here will run every time the application starts. You must
make sure that the code is idempotent and safe to run multiple times.
This is a good place to set up default settings, create initial records, stuff like that.
Should be fast - anything with the potential to be slow should be kicked off as a job instead.
"""
@impl true
def init(state) do
ensure_tmpfile_directory()
reset_executing_jobs()
create_blank_yt_dlp_files()
create_blank_user_script_file()
apply_default_settings()
{:ok, state}
end
defp ensure_tmpfile_directory do
tmpfile_dir = Application.get_env(:pinchflat, :tmpfile_directory)
if !File.exists?(tmpfile_dir) do
File.mkdir_p!(tmpfile_dir)
end
end
# If a node cannot gracefully shut down, the currently executing jobs get stuck
# in the "executing" state. This is a problem because the job runner will not
# pick them up again
defp reset_executing_jobs do
{count, _} =
Oban.Job
|> where(state: "executing")
|> Repo.update_all(set: [state: "retryable"])
Logger.info("Reset #{count} executing jobs")
end
defp create_blank_yt_dlp_files do
files = ["cookies.txt", "yt-dlp-configs/base-config.txt"]
base_dir = Application.get_env(:pinchflat, :extras_directory)
Enum.each(files, fn file ->
filepath = Path.join(base_dir, file)
if !File.exists?(filepath) do
Logger.info("Creating blank file: #{filepath}")
FilesystemUtils.write_p!(filepath, "")
end
end)
end
defp create_blank_user_script_file do
base_dir = Application.get_env(:pinchflat, :extras_directory)
filepath = Path.join([base_dir, "user-scripts", "lifecycle"])
if !File.exists?(filepath) do
Logger.info("Creating blank file and making it executable: #{filepath}")
FilesystemUtils.write_p!(filepath, "")
File.chmod(filepath, 0o755)
end
end
defp apply_default_settings do
{:ok, yt_dlp_version} = yt_dlp_runner().version()
{:ok, apprise_version} = apprise_runner().version()
Settings.set(yt_dlp_version: yt_dlp_version)
Settings.set(apprise_version: apprise_version)
end
defp yt_dlp_runner do
Application.get_env(:pinchflat, :yt_dlp_runner)
end
defp apprise_runner do
Application.get_env(:pinchflat, :apprise_runner)
end
end