1 files changed, 63 insertions, 0 deletions
diff --git a/mod/garbagecollector/start.php b/mod/garbagecollector/start.php
new file mode 100644
index 000000000..c7bd20053
--- /dev/null
+++ b/mod/garbagecollector/start.php
@@ -0,0 +1,63 @@
+<?php
+/**
+ * Elgg garbage collector.
+ *
+ * @package ElggGarbageCollector
+ */
+
+elgg_register_event_handler('init', 'system', 'garbagecollector_init');
+
+function garbagecollector_init() {
+	$period = elgg_get_plugin_setting('period', 'garbagecollector');
+	switch ($period) {
+		case 'weekly':
+		case 'monthly':
+		case 'yearly':
+			break;
+		default:
+			$period = 'monthly';
+	}
+
+	// Register cron hook
+	elgg_register_plugin_hook_handler('cron', $period, 'garbagecollector_cron');
+}
+
+/**
+ * Cron job
+ */
+function garbagecollector_cron($hook, $entity_type, $returnvalue, $params) {
+
+	echo elgg_echo('garbagecollector');
+
+	// Garbage collect metastrings
+	echo elgg_echo('garbagecollector:gc:metastrings');
+
+	if (delete_orphaned_metastrings() !== false) {
+		echo elgg_echo('garbagecollector:ok');
+	} else {
+		echo elgg_echo('garbagecollector:error');
+	}
+
+	echo "\n";
+
+	// Now, because we are nice, trigger a plugin hook to let other plugins do some GC
+	$rv = true;
+	$period = elgg_get_plugin_setting('period','garbagecollector');
+	elgg_trigger_plugin_hook('gc', 'system', array('period' => $period));
+
+	// Now we optimize all tables
+	$tables = get_db_tables();
+	foreach ($tables as $table) {
+		echo elgg_echo('garbagecollector:optimize', array($table));
+
+		if (optimize_table($table) !== false) {
+			echo elgg_echo('garbagecollector:ok');
+		} else {
+			echo elgg_echo('garbagecollector:error');
+		}
+
+		echo "\n";
+	}
+
+	echo elgg_echo('garbagecollector:done');
+}