ConfigDB: Support blacklisting whole config groups

lib/mix/tasks/pleroma/config.ex

@@ -307,6 +307,13 @@ defmodule Mix.Tasks.Pleroma.Config do
     if blacklisted_configs in [nil, false] do
       shell_error("No unwanted settings in ConfigDB. No changes made.")
     else
+      blacklisted_groups =
+        blacklisted_configs
+        |> Enum.filter(fn
+          {_group} -> true
+          _ -> false
+        end)
+
       blacklisted_keys =
         blacklisted_configs
         |> Enum.filter(fn
@@ -317,7 +324,7 @@ defmodule Mix.Tasks.Pleroma.Config do
       filtered =
         from(c in ConfigDB)
         |> Repo.all()
-        |> Enum.filter(&blacklisted?(&1, blacklisted_keys))
+        |> Enum.filter(&blacklisted?(&1, blacklisted_groups, blacklisted_keys))
 
       if not Enum.empty?(filtered) do
         shell_info("The following settings will be removed from ConfigDB:\n")
@@ -541,7 +548,8 @@ defmodule Mix.Tasks.Pleroma.Config do
       not Enum.member?(whitelisted_keys, {group, key})
   end
 
-  defp blacklisted?(%{group: group, key: key}, blacklisted_keys) do
+  defp blacklisted?(%{group: group, key: key}, blacklisted_groups, blacklisted_keys) do
+    Enum.member?(blacklisted_groups, {group}) or
       Enum.member?(blacklisted_keys, {group, key})
   end
 end

test/mix/tasks/pleroma/config_test.exs

@@ -373,11 +373,13 @@ defmodule Mix.Tasks.Pleroma.ConfigTest do
     test "filters blacklisted settings" do
       clear_config(:database_config_whitelist, [{:pleroma}])
       clear_config(:database_config_blacklist, [
-        {:pleroma, :logger}
+        {:pleroma, :logger},
+        {:blacklisted_group}
       ])
 
       insert_config_record(:pleroma, :logger, backends: :console)
       insert_config_record(:web_push_encryption, :vapid_details, a: 1)
+      insert_config_record(:blacklisted_group, :anything, a: 1)
 
       MixTask.run(["filter_blacklisted", "--force"])