add tenant:tinker command

src/Commands/Tinker.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace Stancl\Tenancy\Commands;
+
+use Laravel\Tinker\Console\TinkerCommand as BaseTinker;
+use Symfony\Component\Console\Input\InputArgument;
+
+class Tinker extends BaseTinker
+{
+    public $name = 'tenant:tinker';
+
+    protected function getArguments()
+    {
+        return array_merge([
+            ['tenant', InputArgument::OPTIONAL, 'The tenant to run Tinker for. Pass the tenant key or leave null to default to the first tenant.'],
+        ], parent::getArguments());
+    }
+
+    public function handle()
+    {
+        // ?: to support empty strings so that the original argument (`include`) can be reached even with a falsy tenant argument
+        tenancy()->initialize($this->argument('tenant') ?: tenancy()->model()::first());
+
+        parent::handle();
+    }
+}