Added console commands for enabling and disabling query logging

Author: federivo

app/code/Magento/Developer/Console/Command/QueryLogDisableCommand.php

@@ -0,0 +1,64 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\Developer\Console\Command;
+
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Magento\Framework\App\DeploymentConfig\Writer;
+use Magento\Framework\Config\File\ConfigFilePool;
+
+class QueryLogDisableCommand extends Command
+{
+    /**
+     * command name
+     */
+    const COMMAND_NAME = 'dev:query-log:disable';
+
+    /**
+     * File logger alias
+     */
+    const QUIET_LOGGER_ALIAS = 'quiet';
+
+    /**
+     * @var Writer
+     */
+    private $deploymentConfigWriter;
+
+    public function __construct(
+        Writer $deploymentConfigWriter,
+        $name = null
+    )
+    {
+        parent::__construct($name);
+        $this->deploymentConfigWriter = $deploymentConfigWriter;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function configure()
+    {
+        $this->setName(self::COMMAND_NAME)
+            ->setDescription('Disable DB query logging');
+
+        parent::configure();
+    }
+
+    /**
+     * {@inheritdoc}
+     * @throws \InvalidArgumentException
+     */
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $data = ['db_logger_alias' => 'quiet'];
+        $this->deploymentConfigWriter->saveConfig([ConfigFilePool::APP_ENV => $data]);
+
+        $output->writeln("<info>DB query logging disabled.</info>");
+    }
+}

app/code/Magento/Developer/Console/Command/QueryLogEnableCommand.php

@@ -0,0 +1,111 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\Developer\Console\Command;
+
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Magento\Framework\App\DeploymentConfig\Writer;
+use Magento\Framework\Config\File\ConfigFilePool;
+
+class QueryLogEnableCommand extends Command
+{
+    /**
+     * input parameter log-all-queries
+     */
+    const INPUT_ARG_LOG_ALL_QUERIES = 'log-all-queries';
+
+    /**
+     * input parameter log-query-time
+     */
+    const INPUT_ARG_LOG_QUERY_TIME = 'log-query-time';
+
+    /**
+     * input parameter log-call-stack
+     */
+    const INPUT_ARG_LOG_CALL_STACK = 'log-call-stack';
+
+    /**
+     * command name
+     */
+    const COMMAND_NAME = 'dev:query-log:enable';
+
+    /**
+     * File logger alias
+     */
+    const FILE_LOGGER_ALIAS = 'file';
+
+    /**
+     * @var Writer
+     */
+    private $deploymentConfigWriter;
+
+    public function __construct(
+        Writer $deploymentConfigWriter,
+        $name = null
+    )
+    {
+        parent::__construct($name);
+        $this->deploymentConfigWriter = $deploymentConfigWriter;
+    }
+
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function configure()
+    {
+        $this->setName(self::COMMAND_NAME)
+            ->setDescription('Enable DB query logging');
+
+        $this->addArgument(
+            self::INPUT_ARG_LOG_ALL_QUERIES,
+            InputArgument::OPTIONAL,
+            'Log all queries.',
+            'false'
+        );
+
+        $this->addArgument(
+            self::INPUT_ARG_LOG_QUERY_TIME,
+            InputArgument::OPTIONAL,
+            'Query time.',
+            '0.05'
+        );
+
+        $this->addArgument(
+            self::INPUT_ARG_LOG_CALL_STACK,
+            InputArgument::OPTIONAL,
+            'Log call stack.',
+            'false'
+        );
+
+        parent::configure();
+    }
+
+    /**
+     * {@inheritdoc}
+     * @throws \InvalidArgumentException
+     */
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $data = ['db_logger_alias' => 'file'];
+        $this->deploymentConfigWriter->saveConfig([ConfigFilePool::APP_ENV => $data]);
+
+//        $data = [
+//            'db_logger' => [
+//                'logger_alias' => 'file',
+//                'log_all_queries' => false,
+//                'log_query_time' => '0.05',
+//                'log_call_stack' => false,
+//            ]
+//        ];
+//        $this->deploymentConfigWriter->saveConfig([ConfigFilePool::APP_ENV => $data]);
+
+        $output->writeln("<info>DB query logging enabled.</info>");
+    }
+}

app/code/Magento/Developer/etc/di.xml

@@ -98,6 +98,8 @@
                 <item name="xml_converter" xsi:type="object">Magento\Developer\Console\Command\XmlConverterCommand</item>
                 <item name="xml_catalog_generator" xsi:type="object">Magento\Developer\Console\Command\XmlCatalogGenerateCommand</item>
                 <item name="dev_di_info" xsi:type="object">Magento\Developer\Console\Command\DiInfoCommand</item>
+                <item name="dev_query_log_enable" xsi:type="object">Magento\Developer\Console\Command\QueryLogEnableCommand</item>
+                <item name="dev_query_log_disable" xsi:type="object">Magento\Developer\Console\Command\QueryLogDisableCommand</item>
             </argument>
         </arguments>
     </type>