Add upstream plugins

Signed-off-by: Adrian Nöthlich <git@promasu.tech>

wp-content/plugins/all-in-one-event-calendar/lib/twig/cache.php

@@ -0,0 +1,43 @@
+<?php
+
+/**
+ * The class which handles Twig cache rescan process.
+ *
+ * @author     Time.ly Network Inc.
+ * @since      2.0
+ *
+ * @package    AI1EC
+ * @subpackage AI1EC.Twig
+ */
+class Ai1ec_Twig_Cache extends Ai1ec_Base {
+
+    /**
+     * Rescan cache for writable directory.
+     *
+     * @return void
+     */
+    public function rescan() {
+        $cache_dir = $this->_registry->get( 'theme.loader' )
+                ->get_cache_dir( true );
+        $render_json    = $this->_registry->get(
+                'http.response.render.strategy.json'
+        );
+        $output['data'] = array(
+            'state' => (int)(false !== $cache_dir),
+        );
+        $render_json->render( $output );
+    }
+
+    /**
+     * Sets Twig cache as unavailable and notifies admin.
+     *
+     * @param string $cache_dir Cache dir.
+     *
+     * @throws Ai1ec_Bootstrap_Exception
+     */
+    public function set_unavailable( $cache_dir = AI1EC_TWIG_CACHE_PATH ) {
+        $this->_registry->get( 'model.settings' )
+            ->set( 'twig_cache', AI1EC_CACHE_UNAVAILABLE );
+    }
+
+}