EnsureDatabaseIs.php

<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;

class EnsureDatabaseIs extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'ensure:database:is {name}';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Assert that the database matches the provided name';

    /**
     * Execute the console command.
     *
     * @return int
     */
    public function handle()
    {
        $this->info('Ensuring the right database is being used');

        $configured = config('database.connections.mysql.database');
        $expected = $this->argument('name');

        if ($configured === $expected) {
            return 0; // OK
        }

        $message = 'Configured database "' . $configured
                    . '" does not match expected value "' . $expected . '"';

        $this->error($message);

        return 1; // Not OK
    }
}