From 4229c5953c7953e67519729cea0b4834c8a4a601 Mon Sep 17 00:00:00 2001
From: Claudio Ortolina <cloud8421@gmail.com>
Date: Tue, 15 Oct 2024 17:19:27 +0100
Subject: [PATCH] Add mix task to vacuum the production database

---
 lib/mix/tasks/music_library/prod/db_vacuum.ex | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 lib/mix/tasks/music_library/prod/db_vacuum.ex

diff --git a/lib/mix/tasks/music_library/prod/db_vacuum.ex b/lib/mix/tasks/music_library/prod/db_vacuum.ex
new file mode 100644
index 00000000..4c385a13
--- /dev/null
+++ b/lib/mix/tasks/music_library/prod/db_vacuum.ex
@@ -0,0 +1,19 @@
+defmodule Mix.Tasks.MusicLibrary.Prod.DbVacuum do
+  use Mix.Task
+  @shortdoc "Force VACUUM the production database"
+  @moduledoc """
+  Force VACUUM the production database. This is necessary to make sure that all
+  changes currently in the WAL are persisted to the sqlite database file.
+
+  Requires the `flyctl` CLI to be installed and authenticated.
+  """
+
+  @impl Mix.Task
+  def run(_args) do
+    IO.puts("Running VACUUM on the production database")
+
+    command = ~s(bin/music_library rpc 'MusicLibrary.Repo.query\("VACUUM"\)')
+
+    System.cmd("flyctl", ["ssh", "console", "--command", command], into: IO.stream())
+  end
+end