From 4da6081786693ffe9fba76ccac87b23a4ce63976 Mon Sep 17 00:00:00 2001
From: Robin Appelman <robin@icewind.nl>
Date: Thu, 7 Aug 2025 18:51:56 +0200
Subject: [PATCH] feat: add table filter to schema:export and schema:expected

Signed-off-by: Robin Appelman <robin@icewind.nl>
---
 core/Command/Db/ExpectedSchema.php | 15 +++++++++++++++
 core/Command/Db/ExportSchema.php   | 16 ++++++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/core/Command/Db/ExpectedSchema.php b/core/Command/Db/ExpectedSchema.php
index 1f35daba089..e8635b1117d 100644
--- a/core/Command/Db/ExpectedSchema.php
+++ b/core/Command/Db/ExpectedSchema.php
@@ -14,6 +14,7 @@ use OC\DB\Connection;
 use OC\DB\MigrationService;
 use OC\DB\SchemaWrapper;
 use OC\Migration\NullOutput;
+use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Output\OutputInterface;
@@ -30,12 +31,14 @@ class ExpectedSchema extends Base {
 			->setName('db:schema:expected')
 			->setDescription('Export the expected database schema for a fresh installation')
 			->setHelp("Note that the expected schema might not exactly match the exported live schema as the expected schema doesn't take into account any database wide settings or defaults.")
+			->addArgument('table', InputArgument::OPTIONAL, 'Only show the schema for the specified table')
 			->addOption('sql', null, InputOption::VALUE_NONE, 'Dump the SQL statements for creating the expected schema');
 		parent::configure();
 	}
 
 	protected function execute(InputInterface $input, OutputInterface $output): int {
 		$schema = new Schema();
+		$onlyTable = $input->getArgument('table');
 
 		$this->applyMigrations('core', $schema);
 
@@ -44,6 +47,18 @@ class ExpectedSchema extends Base {
 			$this->applyMigrations($app, $schema);
 		}
 
+		if ($onlyTable) {
+			$tablesToDrop = [];
+			foreach ($schema->getTables() as $table) {
+				if ($table->getName() !== $onlyTable) {
+					$tablesToDrop[] = $table->getName();
+				}
+			}
+			foreach ($tablesToDrop as $table) {
+				$schema->dropTable($table);
+			}
+		}
+
 		$sql = $input->getOption('sql');
 		if ($sql) {
 			$output->writeln($schema->toSql($this->connection->getDatabasePlatform()));
diff --git a/core/Command/Db/ExportSchema.php b/core/Command/Db/ExportSchema.php
index 581824eea5f..1ea0a95d2e6 100644
--- a/core/Command/Db/ExportSchema.php
+++ b/core/Command/Db/ExportSchema.php
@@ -10,6 +10,7 @@ namespace OC\Core\Command\Db;
 
 use OC\Core\Command\Base;
 use OCP\IDBConnection;
+use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Output\OutputInterface;
@@ -25,6 +26,7 @@ class ExportSchema extends Base {
 		$this
 			->setName('db:schema:export')
 			->setDescription('Export the current database schema')
+			->addArgument('table', InputArgument::OPTIONAL, 'Only show the schema for the specified table')
 			->addOption('sql', null, InputOption::VALUE_NONE, 'Dump the SQL statements for creating a copy of the schema');
 		parent::configure();
 	}
@@ -32,6 +34,20 @@ class ExportSchema extends Base {
 	protected function execute(InputInterface $input, OutputInterface $output): int {
 		$schema = $this->connection->createSchema();
 		$sql = $input->getOption('sql');
+		$onlyTable = $input->getArgument('table');
+
+		if ($onlyTable) {
+			$tablesToDrop = [];
+			foreach ($schema->getTables() as $table) {
+				if ($table->getName() !== $onlyTable) {
+					$tablesToDrop[] = $table->getName();
+				}
+			}
+			foreach ($tablesToDrop as $table) {
+				$schema->dropTable($table);
+			}
+		}
+
 		if ($sql) {
 			$output->writeln($schema->toSql($this->connection->getDatabasePlatform()));
 		} else {