From 521438c2fbbaaf4b6a04eba7caf6c8436b47faae Mon Sep 17 00:00:00 2001
From: Till Backhaus <backhaus@traum-ferienwohnungen.de>
Date: Fri, 15 Jun 2018 10:09:50 +0200
Subject: [PATCH] Throw an exception if apc middleware is registered but apc is
 not enabled on cli.

---
 src/LumenServiceProvider.php | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/LumenServiceProvider.php b/src/LumenServiceProvider.php
index a115ca5..8381709 100644
--- a/src/LumenServiceProvider.php
+++ b/src/LumenServiceProvider.php
@@ -40,6 +40,12 @@ public function register()
 
         switch (config('prometheus_exporter.adapter')) {
             case 'apc':
+                if ('cli' == php_sapi_name()) {
+                    if (!ini_get('apc.enable_cli') || !extension_loaded('apc')) {
+                        throw new \ErrorException(
+                            'Registered apc adapter, but apc is disabled. Set apc.enable_cli=1 to fix this');
+                    }
+                }
                 $this->app->bind('Prometheus\Storage\Adapter', 'Prometheus\Storage\APC');
                 break;
             case 'redis':