Add a command to get a config value

2 files changed, 114 insertions, 2 deletions

diff --git a/core/command/base.php b/core/command/base.php
index 7dba2fde010..7e61c0cb9ab 100644
--- a/core/command/base.php
+++ b/core/command/base.php
@@ -75,13 +75,37 @@ class Base extends Command {
 		}
 	}
 
-	protected function valueToString($value) {
+	/**
+	 * @param InputInterface $input
+	 * @param OutputInterface $output
+	 * @param mixed $item
+	 */
+	protected function writeMixedInOutputFormat(InputInterface $input, OutputInterface $output, $item) {
+		if (is_array($item)) {
+			$this->writeArrayInOutputFormat($input, $output, $item, '');
+			return;
+		}
+
+		switch ($input->getOption('output')) {
+			case 'json':
+				$output->writeln(json_encode($item));
+				break;
+			case 'json_pretty':
+				$output->writeln(json_encode($item, JSON_PRETTY_PRINT));
+				break;
+			default:
+				$output->writeln($this->valueToString($item, false));
+				break;
+		}
+	}
+
+	protected function valueToString($value, $returnNull = true) {
 		if ($value === false) {
 			return 'false';
 		} else if ($value === true) {
 			return 'true';
 		} else if ($value === null) {
-			null;
+			return ($returnNull) ? null : 'null';
 		} else {
 			return $value;
 		}
diff --git a/core/command/config/system/getconfig.php b/core/command/config/system/getconfig.php
new file mode 100644
index 00000000000..a462b154339
--- /dev/null
+++ b/core/command/config/system/getconfig.php
@@ -0,0 +1,88 @@
+<?php
+/**
+ * @author Joas Schilling <nickvergessen@owncloud.com>
+ *
+ * @copyright Copyright (c) 2015, ownCloud, Inc.
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+namespace OC\Core\Command\Config\System;
+
+use OC\Core\Command\Base;
+use OC\SystemConfig;
+use OCP\IAppConfig;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class GetConfig extends Base {
+	/** * @var SystemConfig */
+	protected $systemConfig;
+
+	/**
+	 * @param SystemConfig $systemConfig
+	 */
+	public function __construct(SystemConfig $systemConfig) {
+		parent::__construct();
+		$this->systemConfig = $systemConfig;
+	}
+
+	protected function configure() {
+		parent::configure();
+
+		$this
+			->setName('config:system:get')
+			->setDescription('Set a system config value')
+			->addArgument(
+				'name',
+				InputArgument::REQUIRED,
+				'Name of the config to get'
+			)
+			->addOption(
+				'default-value',
+				null,
+				InputOption::VALUE_OPTIONAL,
+				'If no default value is set and the config does not exist, an error is thrown'
+			)
+		;
+	}
+
+	/**
+	 * Executes the current command.
+	 *
+	 * @param InputInterface  $input  An InputInterface instance
+	 * @param OutputInterface $output An OutputInterface instance
+	 * @return null|int null or 0 if everything went fine, or an error code
+	 */
+	protected function execute(InputInterface $input, OutputInterface $output) {
+		$configName = $input->getArgument('name');
+		$defaultValue = $input->getOption('default-value');
+
+		if (!in_array($configName, $this->systemConfig->getKeys()) && !$input->hasParameterOption('--default-value')) {
+			return 1;
+		}
+
+		if (!in_array($configName, $this->systemConfig->getKeys())) {
+			$configValue = $defaultValue;
+		} else {
+			$configValue = $this->systemConfig->getValue($configName);
+		}
+
+		$this->writeMixedInOutputFormat($input, $output, $configValue);
+		return 0;
+	}
+}