Allow dynamic connection (#835)

* Allow dynamic connection
* Add test case.

Author: dereuromark

src/Migration/ManagerFactory.php

@@ -88,7 +88,16 @@ public function createConfig(): ConfigInterface
         $templatePath = dirname(__DIR__) . DS . 'templates' . DS;
         $connectionName = (string)$this->getOption('connection');
 
-        $connectionConfig = ConnectionManager::getConfig($connectionName);
+        if (str_contains($connectionName, '://')) {
+            /** @var array<string, mixed> $connectionConfig */
+            $connectionConfig = ConnectionManager::parseDsn($connectionName);
+            $connectionName = 'tmp';
+            if (!ConnectionManager::getConfig($connectionName)) {
+                ConnectionManager::setConfig($connectionName, $connectionConfig);
+            }
+        } else {
+            $connectionConfig = ConnectionManager::getConfig($connectionName);
+        }
         if (!$connectionConfig) {
             throw new RuntimeException("Could not find connection `{$connectionName}`");
         }

tests/TestCase/Migration/ManagerFactoryTest.php

@@ -0,0 +1,52 @@
+<?php
+declare(strict_types=1);
+
+namespace Migrations\Test\TestCase\Migration;
+
+use Cake\Console\ConsoleIo;
+use Cake\Console\TestSuite\StubConsoleInput;
+use Cake\Console\TestSuite\StubConsoleOutput;
+use Cake\Datasource\ConnectionManager;
+use Migrations\Migration\ManagerFactory;
+use PHPUnit\Framework\TestCase;
+
+class ManagerFactoryTest extends TestCase
+{
+    public function testConnection(): void
+    {
+        $this->out = new StubConsoleOutput();
+        $this->out->setOutputAs(StubConsoleOutput::PLAIN);
+        $this->in = new StubConsoleInput([]);
+
+        $io = new ConsoleIo($this->out, $this->out, $this->in);
+
+        $factory = new ManagerFactory(['connection' => 'test']);
+        $result = $factory->createManager($io);
+
+        $this->assertSame('test', $result->getConfig()->getConnection());
+    }
+
+    public function testDsnConnection(): void
+    {
+        $this->out = new StubConsoleOutput();
+        $this->out->setOutputAs(StubConsoleOutput::PLAIN);
+        $this->in = new StubConsoleInput([]);
+
+        $io = new ConsoleIo($this->out, $this->out, $this->in);
+
+        $factory = new ManagerFactory(['connection' => 'mysql://root@127.0.0.1/db_tmp']);
+        $result = $factory->createManager($io);
+
+        $this->assertSame('tmp', $result->getConfig()->getConnection());
+        $expected = [
+            'scheme' => 'mysql',
+            'username' => 'root',
+            'host' => '127.0.0.1',
+            'className' => 'Cake\Database\Connection',
+            'database' => 'db_tmp',
+            'driver' => 'Cake\Database\Driver\Mysql',
+            'name' => 'tmp',
+        ];
+        $this->assertEquals($expected, ConnectionManager::getConfig('tmp'));
+    }
+}