create config for purge by days old files

Author: rtrenuela

src/Commands/DataTablesPurgeExportCommand.php

@@ -30,7 +30,7 @@ public function handle()
     {
         collect(Storage::listContents('exports'))
             ->each(function ($file) {
-                if ($file['timestamp'] < now()->subDay(1)->getTimestamp()) {
+                if ($file['timestamp'] < now()->subDay(config('datatables-export.purge.days'))->getTimestamp()) {
                     Storage::delete($file['path']);
                 }
             });

src/config/datatables-export.php

@@ -35,5 +35,12 @@
         NumberFormat::FORMAT_DATE_XLSX17,
         NumberFormat::FORMAT_DATE_YYYYMMDD2,
         NumberFormat::FORMAT_DATE_YYYYMMDDSLASH,
-    ]
+    ],
+
+    /**
+     * Purge all exported by purge.days old files.
+     */
+    'purge' => [
+        'days' => 1,
+    ],
 ];