Allow increased memory limits to be set via config

config/excel-to-google-sheet.php

@@ -14,4 +14,9 @@
      * instead of a file path.
      */
     'service_account_credentials_json' => storage_path('secrets/google-service-account.json'),
+
+    /**
+     * When set, the given memory limit will be used for the duration of the export.
+     */
+    'memory_limit' => null,
 ];

src/Commands/PushAllExportsToGoogleSheets.php

@@ -4,6 +4,7 @@
 
 use Enflow\LaravelExcelToGoogleSheet\GoogleSheetPusher;
 use Illuminate\Console\Command;
+use Illuminate\Database\Eloquent\Model;
 use Throwable;
 
 class PushAllExportsToGoogleSheets extends Command

src/Commands/PushExportToGoogleSheets.php

@@ -32,6 +32,8 @@ public function handle(GoogleSheetPusher $googleSheetPusher): int
 
         $this->warn("Pushing {$export} to Google Sheets...");
 
+        $this->increaseMemoryLimitIfRequired();
+
         /** @var \Enflow\LaravelExcelToGoogleSheet\ExportableToGoogleSheet $exporter */
         $exporter = new $export();
 
@@ -58,4 +60,17 @@ private function askExport(): ?string
 
         return $exports[$exportName] ?? null;
     }
+
+    private function increaseMemoryLimitIfRequired(): void
+    {
+        $memoryLimit = config('excel-to-google-sheet.memory_limit');
+        if ($memoryLimit === null) {
+            return;
+        }
+
+        // `phpoffice/phpspreadsheet` uses a lot of memory while processing the export.
+        // We'll allow the memory limit to be configured in the config.
+        // TODO: search for a more long term solution.
+        ini_set('memory_limit', $memoryLimit);
+    }
 }