Convert rocketchat-retention-policy to main module structure (#12797)

packages/rocketchat-retention-policy/package.js

@@ -17,9 +17,5 @@ Package.onUse(function(api) {
 		'templating',
 		'rocketchat:lib',
 	]);
-
-	api.addFiles([
-		'server/startup/settings.js',
-		'server/cronPruneMessages.js',
-	], 'server');
+	api.mainModule('server/index.js', 'server');
 });

packages/rocketchat-retention-policy/server/cronPruneMessages.js

@@ -1,5 +1,6 @@
-/* globals SyncedCron */
 import { Meteor } from 'meteor/meteor';
+import { RocketChat } from 'meteor/rocketchat:lib';
+import { SyncedCron } from 'meteor/littledata:synced-cron';
 
 let types = [];
 

packages/rocketchat-retention-policy/server/index.js

@@ -0,0 +1,2 @@
+import './startup/settings';
+import './cronPruneMessages';

packages/rocketchat-retention-policy/server/startup/settings.js

@@ -1,3 +1,5 @@
+import { RocketChat } from 'meteor/rocketchat:lib';
+
 RocketChat.settings.addGroup('RetentionPolicy', function() {
 
 	this.add('RetentionPolicy_Enabled', false, {