From d7b5d4cb58f75e4598d3d537c743905c301d7952 Mon Sep 17 00:00:00 2001
From: Joas Schilling <213943+nickvergessen@users.noreply.github.com>
Date: Wed, 11 Nov 2020 20:12:13 +0100
Subject: Revert "Revert "Installation goes brrrr""

---
 lib/private/DB/MigrationService.php | 46 +++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

(limited to 'lib/private/DB')

diff --git a/lib/private/DB/MigrationService.php b/lib/private/DB/MigrationService.php
index cd0280162d3..9c94cbc61fa 100644
--- a/lib/private/DB/MigrationService.php
+++ b/lib/private/DB/MigrationService.php
@@ -124,6 +124,11 @@ class MigrationService {
 			return false;
 		}
 
+		if ($this->connection->tableExists('migrations')) {
+			$this->migrationTableCreated = true;
+			return false;
+		}
+
 		$schema = new SchemaWrapper($this->connection);
 
 		/**
@@ -408,6 +413,11 @@ class MigrationService {
 	 * @throws \InvalidArgumentException
 	 */
 	public function migrate($to = 'latest', $schemaOnly = false) {
+		if ($schemaOnly) {
+			$this->migrateSchemaOnly($to);
+			return;
+		}
+
 		// read known migrations
 		$toBeExecuted = $this->getMigrationsToExecute($to);
 		foreach ($toBeExecuted as $version) {
@@ -415,6 +425,42 @@ class MigrationService {
 		}
 	}
 
+	/**
+	 * Applies all not yet applied versions up to $to
+	 *
+	 * @param string $to
+	 * @throws \InvalidArgumentException
+	 */
+	public function migrateSchemaOnly($to = 'latest') {
+		// read known migrations
+		$toBeExecuted = $this->getMigrationsToExecute($to);
+
+		if (empty($toBeExecuted)) {
+			return;
+		}
+
+		$toSchema = null;
+		foreach ($toBeExecuted as $version) {
+			$instance = $this->createInstance($version);
+
+			$toSchema = $instance->changeSchema($this->output, function () use ($toSchema) {
+				return $toSchema ?: new SchemaWrapper($this->connection);
+			}, ['tablePrefix' => $this->connection->getPrefix()]) ?: $toSchema;
+
+			$this->markAsExecuted($version);
+		}
+
+		if ($toSchema instanceof SchemaWrapper) {
+			$targetSchema = $toSchema->getWrappedSchema();
+			if ($this->checkOracle) {
+				$beforeSchema = $this->connection->createSchema();
+				$this->ensureOracleIdentifierLengthLimit($beforeSchema, $targetSchema, strlen($this->connection->getPrefix()));
+			}
+			$this->connection->migrateToSchema($targetSchema);
+			$toSchema->performDropTableCalls();
+		}
+	}
+
 	/**
 	 * Get the human readable descriptions for the migration steps to run
 	 *
-- 
cgit v1.2.3


From 9a3ce2f71fffc166cf9676ee9231eb167d8954a4 Mon Sep 17 00:00:00 2001
From: Joas Schilling <coding@schilljs.com>
Date: Mon, 16 Nov 2020 19:34:38 +0100
Subject: Don't drop the table anymore when we create it again

Signed-off-by: Joas Schilling <coding@schilljs.com>
---
 lib/private/DB/SchemaWrapper.php | 1 +
 1 file changed, 1 insertion(+)

(limited to 'lib/private/DB')

diff --git a/lib/private/DB/SchemaWrapper.php b/lib/private/DB/SchemaWrapper.php
index e42535d64ab..440008d35b3 100644
--- a/lib/private/DB/SchemaWrapper.php
+++ b/lib/private/DB/SchemaWrapper.php
@@ -111,6 +111,7 @@ class SchemaWrapper implements ISchemaWrapper {
 	 * @return \Doctrine\DBAL\Schema\Table
 	 */
 	public function createTable($tableName) {
+		unset($this->tablesToDelete[$tableName]);
 		return $this->schema->createTable($this->connection->getPrefix() . $tableName);
 	}
 
-- 
cgit v1.2.3