mix task for prune_task

changelog.d/prune-deletes.add

@@ -0,0 +1 @@
+Cron + mix task to prune transient activities

docs/administration/CLI_tasks/database.md

@@ -159,3 +159,23 @@ Change `default_text_search_config` for database and (if necessary) text_search_
     ```
 
 See [PostgreSQL documentation](https://www.postgresql.org/docs/current/textsearch-configuration.html) and `docs/configuration/howto_search_cjk.md` for more detail.
+
+## Pruning old activities
+
+Over time, transient `Delete` activities and `Tombstone` objects
+can accumulate in your database, inflating its size. This is not ideal.
+There is a periodic task to prune these transient objects,
+but on first run this may take a while on older instances to catch up
+to the current day.
+
+=== "OTP"
+
+    ```sh
+    ./bin/pleroma_ctl database prune_task
+    ```
+
+=== "From Source"
+
+    ```sh
+    mix pleroma.database prune_task
+    ```

lib/mix/tasks/pleroma/database.ex

@@ -110,6 +110,14 @@ defmodule Mix.Tasks.Pleroma.Database do
     end
   end
 
+  def run(["prune_task"]) do
+    start_pleroma()
+
+    nil
+    |> Pleroma.Workers.Cron.PruneDatabaseWorker.perform()
+    |> IO.inspect()
+  end
+
   def run(["fix_likes_collections"]) do
     start_pleroma()