bundles/openhab: clean up old backups before doing new ones

bundles/openhab/files/backup-pre-hook

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+find /var/lib/openhab/backups -type f -mtime +3 -delete
+
+/usr/share/openhab/runtime/bin/backup --full

bundles/openhab/items.py

@@ -16,6 +16,10 @@ files = {
             'svc_systemd:openhab:restart',
         },
     },
+    '/etc/backup-pre-hooks.d/40-openhab': {
+        'source': 'backup-pre-hook',
+        'mode': '0755',
+    }
 }
 
 svc_systemd = {

bundles/openhab/metadata.py

@@ -27,11 +27,6 @@ defaults = {
             '/var/lib/openhab',
         },
     },
-    'backup-client': {
-        'pre-hooks': {
-            'openhab': '/usr/share/openhab/runtime/bin/backup --full\n',
-        },
-    },
 }