tasks: relay: add list task

CHANGELOG.md

@@ -69,6 +69,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - ActivityPub: Optional signing of ActivityPub object fetches.
 - Admin API: Endpoint for fetching latest user's statuses
 - Pleroma API: Add `/api/v1/pleroma/accounts/confirmation_resend?email=<email>` for resending account confirmation.
+- Relays: Added a task to list relay subscriptions.
 
 ### Changed
 - Configuration: Filter.AnonymizeFilename added ability to retain file extension with custom text

lib/mix/tasks/pleroma/relay.ex

@@ -5,6 +5,7 @@
 defmodule Mix.Tasks.Pleroma.Relay do
   use Mix.Task
   import Mix.Pleroma
+  alias Pleroma.User
   alias Pleroma.Web.ActivityPub.Relay
 
   @shortdoc "Manages remote relays"
@@ -22,6 +23,10 @@ defmodule Mix.Tasks.Pleroma.Relay do
   ``mix pleroma.relay unfollow <relay_url>``
 
   Example: ``mix pleroma.relay unfollow https://example.org/relay``
+
+  ## List relay subscriptions
+
+  ``mix pleroma.relay list``
   """
   def run(["follow", target]) do
     start_pleroma()
@@ -44,4 +49,19 @@ def run(["unfollow", target]) do
       {:error, e} -> shell_error("Error while following #{target}: #{inspect(e)}")
     end
   end
+
+  def run(["list"]) do
+    start_pleroma()
+
+    with %User{} = user <- Relay.get_actor() do
+      user.following
+      |> Enum.each(fn entry ->
+        URI.parse(entry)
+        |> Map.get(:host)
+        |> shell_info()
+      end)
+    else
+      e -> shell_error("Error while fetching relay subscription list: #{inspect(e)}")
+    end
+  end
 end