pleroma_ctl: Properly handle user arguments with whitespace

When user supplied arguments to pleroma_ctl include whitespace
that has been properly quoted, all arguments were sent to
ReleaseTasks in one string, which then String.split/1 the input on any
whitespace. This broke Mix tasks that accept certain user input like
instance gen and user management.

To fix this, pleroma_ctl now sends the arguments in list
form. Additionally pleroma_ctl arguments now need to be pre-processed.

Fixes pleroma/pleroma#7874

lib/pleroma/release_tasks.ex

@@ -5,7 +5,10 @@
 defmodule Pleroma.ReleaseTasks do
   @repo Pleroma.Repo
 
-  def run(args) do
+  # TODO: Kept for some backwards compatibility with buggy pleroma_ctl,
+  # if a mismatch between pleroma_ctl and Pleroma accidentaly happens.
+  # Remove in the future.
+  def run(args) when is_binary(args) do
     [task | args] = String.split(args)
 
     case task do
@@ -16,6 +19,20 @@ defmodule Pleroma.ReleaseTasks do
     end
   end
 
+  # HACK: Script arguments need to be received as a list, otherwise (quoted) arguments with
+  # whitespace will be broken. Previously the broken string form above was used,
+  # escaping in the shell does not help.
+  def run(args) when is_list(args) do
+    [task | args] = args
+
+    case task do
+      "migrate" -> migrate(args)
+      "create" -> create()
+      "rollback" -> rollback(args)
+      task -> mix_task(task, args)
+    end
+  end
+
   def find_module(task) do
     module_name =
       task