comments and empty files

Author: Gaetano Giunta

app/src/Command/DatabaseManagingCommand.php

@@ -40,7 +40,9 @@ protected function addCommonOptions()
             ->addOption('output-type', null, InputOption::VALUE_REQUIRED, 'The format for the output: json, php, text or yml', self::DEFAULT_OUTPUT_FORMAT)
             ->addOption('timeout', null, InputOption::VALUE_REQUIRED, 'The maximum time to wait for execution (secs)', self::DEFAULT_PROCESS_TIMEOUT)
             ->addOption('max-parallel', null, InputOption::VALUE_REQUIRED, 'The maximum number of processes to run in parallel', self::DEFAULT_PARALLEL_PROCESSES)
-            ->addOption('dont-force-enabled-sigchild', null, InputOption::VALUE_NONE, "When using a separate php process to run each sql command, do not force Symfony to believe that php was compiled with --enable-sigchild option");
+            ->addOption('dont-force-enabled-sigchild', null, InputOption::VALUE_NONE, "When using a separate php process to run each sql command, do not force Symfony to believe that php was compiled with --enable-sigchild option")
+            ->addOption('instances', null, InputOption::VALUE_REQUIRED, 'Filter the database servers to run this command against. Usage of * and ? wildcards is allowed. To see all instances available, use `db3v4l:instance:list`', null)
+        ;
     }
 
     /**

app/src/Core/SqlExecutor/Forked/PDO.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace Db3v4l\Core\SqlExecutor\Forked;
+
+use Db3v4l\API\Interfaces\ForkedCommandExecutor;
+use Db3v4l\Util\Process;
+
+class PDO extends ForkedExecutor implements ForkedCommandExecutor
+{
+    /**
+     * @param string|string[] $sql
+     * @return Process
+     */
+    public function getExecuteCommandProcess($sql)
+    {
+        throw new \RuntimeException('TO BE IMPLEMENTED');
+    }
+}

app/src/Core/SqlExecutor/InProcess/PDO.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Db3v4l\Core\SqlExecutor\InProcess;
+
+use Db3v4l\Core\SqlExecutor\BaseExecutor;
+
+class PDO extends BaseExecutor
+{
+
+}