--- a/mod_storage_xmlarchive/README.markdown	Mon Nov 27 17:16:15 2023 +0100
+++ b/mod_storage_xmlarchive/README.markdown	Tue Nov 28 19:48:34 2023 +0100
@@ -63,12 +63,13 @@
 `mod_storage_xmlarchive`:
 
 ``` bash
-prosodyctl mod_storage_xmlarchive convert $DIR internal $STORE $JID
+prosodyctl mod_storage_xmlarchive convert $DIR internal $STORE [$JID]
 ```
 
 Where `$DIR` is `to` or `from`, `$STORE` is e.g. `archive` or `archive2`
-for MAM and `muc_log` for MUC logs. Finally, `$JID` is the JID of the
-user or MUC room to be migrated, which can be repeated.
+for MAM and `muc_log` for MUC logs. Finally, `$JID` is one or more JID
+of the users or MUC rooms to be migrated. If omitted, all users/rooms
+are migrated.
 
 ::: {.alert .alert-danger}
 Since this is a destructive command, don't forget to backup your data

--- a/mod_storage_xmlarchive/mod_storage_xmlarchive.lua	Mon Nov 27 17:16:15 2023 +0100
+++ b/mod_storage_xmlarchive/mod_storage_xmlarchive.lua	Tue Nov 28 19:48:34 2023 +0100
@@ -445,7 +445,7 @@
 end
 
 function archive:users()
-	return it.filter(skip_at_date, dm.users(module.host, self.store, "list"));
+	return it.filter(skip_at_date, dm.users(self.host, self.store, "list"));
 end
 
 local provider = {};
@@ -548,13 +548,19 @@
 
 		local store = arg[4];
 		if arg[3] == "internal" then
-			for i = 5, #arg do
-				local user, host = jid.prepped_split(arg[i]);
-				if not user then
-					print(string.format("Argument #%d (%q) is an invalid JID, aborting", i, arg[i]));
-					os.exit(1);
+			if arg[5] then
+				for i = 5, #arg do
+					local user, host = jid.prepped_split(arg[i]);
+					if not user then
+						print(string.format("Argument #%d (%q) is an invalid JID, aborting", i, arg[i]));
+						os.exit(1);
+					end
+					convert(user, host, store);
 				end
-				convert(user, host, store);
+			else
+				for user in archive.users({ host = host; store = store }) do
+					convert(user, host, store);
+				end
 			end
 			print("Done");
 			return 0;
@@ -563,6 +569,6 @@
 			print("Check out https://modules.prosody.im/mod_migrate");
 		end
 	end
-	print("prosodyctl mod_storage_xmlarchive convert (from|to) internal (archive|archive2|muc_log) user@host");
+	print("prosodyctl mod_storage_xmlarchive convert (from|to) internal (archive|archive2|muc_log) [user@host]");
 end