Add CLI scripts to get and set global configuration.

Fixes #2588.

cli/Commands/Config/GetConfigValue.php

+<?php
+
+namespace Studip\Cli\Commands\Config;
+
+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 Symfony\Component\Console\Helper\Table;
+
+class GetConfigValue extends Command
+{
+    protected static $defaultName = 'config:get';
+
+    protected function configure(): void
+    {
+        $this->setDescription('Get value of a Stud.IP configuration key.');
+        $this->setHelp('This command will return the value of a Stud.IP configuration key.');
+        $this->addArgument('config-key', InputArgument::REQUIRED, 'Key of the configuration.');
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $configKey = $input->getArgument('config-key');
+
+        $config = \Config::get();
+        $metadata = $config->getMetadata($configKey) ?: [
+            'field' => $configKey,
+            'type' => 'string',
+            'description' => 'missing in table `config`',
+        ];
+        if (isset($metadata['is_default'])) {
+            $metadata['is_default'] = $metadata['is_default'] ? 'true' : 'false';
+        }
+        $metadata['value'] = $config->$configKey;
+        $pairs = array_map(null, array_keys($metadata), array_values($metadata));
+
+        $table = new Table($output);
+        $table->setHeaders(['Field', 'Value'])->setRows($pairs);
+        $table->setStyle('box');
+        $table->render();
+
+        return Command::SUCCESS;
+    }
+}

cli/Commands/Config/SetConfigValue.php

+<?php
+
+namespace Studip\Cli\Commands\Config;
+
+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 Symfony\Component\Console\Helper\Table;
+
+class setConfigValue extends Command
+{
+    protected static $defaultName = 'config:set';
+
+    protected function configure(): void
+    {
+        $this->setDescription('Set value of a Stud.IP configuration key.');
+        $this->setHelp('This command will set the value of a Stud.IP configuration key.');
+        $this->addArgument('config-key', InputArgument::REQUIRED, 'Key of the configuration.');
+        $this->addArgument('config-value', InputArgument::REQUIRED, 'Value of the configuration.');
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $configKey = $input->getArgument('config-key');
+        $configValue = $input->getArgument('config-value');
+        $metadata = \Config::get()->getMetadata($configKey);
+        if (!$metadata) {
+            // TODO:
+            throw new \RuntimeException();
+        }
+
+        $result = \Config::get()->store($configKey, $configValue);
+
+        return Command::SUCCESS;
+    }
+}

cli/studip

@@ -18,6 +18,8 @@ $commands = [
     Commands\Checks\HelpTours::class,
     Commands\Checks\HelpTours::class,
     Commands\CleanupAdmissionRules::class,
+    Commands\Config\GetConfigValue::class,
+    Commands\Config\SetConfigValue::class,
     Commands\Cronjobs\CronjobExecute::class,
     Commands\Cronjobs\CronjobExecute::class,
     Commands\Cronjobs\CronjobList::class,