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vendor/doctrine/migrations/lib/Doctrine/Migrations/Provider/DBALSchemaDiffProvider.php

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+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Migrations\Provider;
+
+use Doctrine\DBAL\Platforms\AbstractPlatform;
+use Doctrine\DBAL\Schema\AbstractSchemaManager;
+use Doctrine\DBAL\Schema\Schema;
+
+/**
+ * The SchemaDiffProvider class is responsible for providing a Doctrine\DBAL\Schema\Schema instance that
+ * represents the current state of your database. A clone of this Schema instance is passed to each of your migrations
+ * so that you can manipulate the Schema object. Your manipulated Schema object is then compared to the original Schema
+ * object to produce the SQL statements that need to be executed.
+ *
+ * @internal
+ *
+ * @see Doctrine\Migrations\Version\DbalExecutor
+ */
+class DBALSchemaDiffProvider implements SchemaDiffProvider
+{
+    /** @param AbstractSchemaManager<AbstractPlatform> $schemaManager- */
+    public function __construct(
+        private readonly AbstractSchemaManager $schemaManager,
+        private readonly AbstractPlatform $platform,
+    ) {
+    }
+
+    public function createFromSchema(): Schema
+    {
+        return $this->schemaManager->introspectSchema();
+    }
+
+    public function createToSchema(Schema $fromSchema): Schema
+    {
+        return clone $fromSchema;
+    }
+
+    /** @return string[] */
+    public function getSqlDiffToMigrate(Schema $fromSchema, Schema $toSchema): array
+    {
+        return $this->platform->getAlterSchemaSQL(
+            $this->schemaManager->createComparator()->compareSchemas($fromSchema, $toSchema),
+        );
+    }
+}

vendor/doctrine/migrations/lib/Doctrine/Migrations/Provider/EmptySchemaProvider.php

@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Migrations\Provider;
+
+use Doctrine\DBAL\Platforms\AbstractPlatform;
+use Doctrine\DBAL\Schema\AbstractSchemaManager;
+use Doctrine\DBAL\Schema\Schema;
+
+/**
+ * The EmptySchemaProvider class is responsible for creating a Doctrine\DBAL\Schema\Schema instance that
+ * represents the empty state of your database.
+ *
+ * @internal
+ */
+final class EmptySchemaProvider implements SchemaProvider
+{
+    /** @param AbstractSchemaManager<AbstractPlatform> $schemaManager */
+    public function __construct(private readonly AbstractSchemaManager $schemaManager)
+    {
+    }
+
+    public function createSchema(): Schema
+    {
+        return new Schema([], [], $this->schemaManager->createSchemaConfig());
+    }
+}

vendor/doctrine/migrations/lib/Doctrine/Migrations/Provider/Exception/NoMappingFound.php

@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Migrations\Provider\Exception;
+
+use UnexpectedValueException;
+
+final class NoMappingFound extends UnexpectedValueException implements ProviderException
+{
+    public static function new(): self
+    {
+        return new self('No mapping information to process');
+    }
+}

vendor/doctrine/migrations/lib/Doctrine/Migrations/Provider/Exception/ProviderException.php

@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Migrations\Provider\Exception;
+
+use Doctrine\Migrations\Exception\MigrationException;
+
+interface ProviderException extends MigrationException
+{
+}

vendor/doctrine/migrations/lib/Doctrine/Migrations/Provider/LazySchema.php

@@ -0,0 +1,14 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Migrations\Provider;
+
+use Doctrine\DBAL\Schema\Schema;
+use Symfony\Component\VarExporter\LazyProxyTrait;
+
+/** @internal */
+class LazySchema extends Schema
+{
+    use LazyProxyTrait;
+}

vendor/doctrine/migrations/lib/Doctrine/Migrations/Provider/LazySchemaDiffProvider.php

@@ -0,0 +1,52 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Migrations\Provider;
+
+use Doctrine\DBAL\Schema\Schema;
+
+/**
+ * The LazySchemaDiffProvider is responsible for lazily generating the from schema when diffing two schemas
+ * to produce a migration.
+ *
+ * @internal
+ */
+class LazySchemaDiffProvider implements SchemaDiffProvider
+{
+    public function __construct(
+        private readonly SchemaDiffProvider $originalSchemaManipulator,
+    ) {
+    }
+
+    public function createFromSchema(): Schema
+    {
+        $originalSchemaManipulator = $this->originalSchemaManipulator;
+
+        return LazySchema::createLazyProxy(static fn () => $originalSchemaManipulator->createFromSchema());
+    }
+
+    public function createToSchema(Schema $fromSchema): Schema
+    {
+        $originalSchemaManipulator = $this->originalSchemaManipulator;
+
+        if ($fromSchema instanceof LazySchema && ! $fromSchema->isLazyObjectInitialized()) {
+            return LazySchema::createLazyProxy(static fn () => $originalSchemaManipulator->createToSchema($fromSchema));
+        }
+
+        return $this->originalSchemaManipulator->createToSchema($fromSchema);
+    }
+
+    /** @return string[] */
+    public function getSqlDiffToMigrate(Schema $fromSchema, Schema $toSchema): array
+    {
+        if (
+            $toSchema instanceof LazySchema
+            && ! $toSchema->isLazyObjectInitialized()
+        ) {
+            return [];
+        }
+
+        return $this->originalSchemaManipulator->getSqlDiffToMigrate($fromSchema, $toSchema);
+    }
+}

vendor/doctrine/migrations/lib/Doctrine/Migrations/Provider/OrmSchemaProvider.php

@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Migrations\Provider;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\ORM\EntityManagerInterface;
+use Doctrine\ORM\Mapping\ClassMetadata;
+use Doctrine\ORM\Tools\SchemaTool;
+
+use function usort;
+
+/**
+ * The OrmSchemaProvider class is responsible for creating a Doctrine\DBAL\Schema\Schema instance from the mapping
+ * information provided by the Doctrine ORM. This is then used to diff against your current database schema to produce
+ * a migration to bring your database in sync with the ORM mapping information.
+ *
+ * @internal
+ */
+final class OrmSchemaProvider implements SchemaProvider
+{
+    private EntityManagerInterface $entityManager;
+
+    public function __construct(EntityManagerInterface $em)
+    {
+        $this->entityManager = $em;
+    }
+
+    public function createSchema(): Schema
+    {
+        /** @var array<int, ClassMetadata<object>> $metadata */
+        $metadata = $this->entityManager->getMetadataFactory()->getAllMetadata();
+
+        usort($metadata, static fn (ClassMetadata $a, ClassMetadata $b): int => $a->getTableName() <=> $b->getTableName());
+
+        $tool = new SchemaTool($this->entityManager);
+
+        return $tool->getSchemaFromMetadata($metadata);
+    }
+}

vendor/doctrine/migrations/lib/Doctrine/Migrations/Provider/SchemaDiffProvider.php

@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Migrations\Provider;
+
+use Doctrine\DBAL\Schema\Schema;
+
+/**
+ * The SchemaDiffProvider defines the interface used to provide the from and to schemas and to produce
+ * the SQL queries needed to migrate.
+ *
+ * @internal
+ */
+interface SchemaDiffProvider
+{
+    public function createFromSchema(): Schema;
+
+    public function createToSchema(Schema $fromSchema): Schema;
+
+    /** @return string[] */
+    public function getSqlDiffToMigrate(Schema $fromSchema, Schema $toSchema): array;
+}

vendor/doctrine/migrations/lib/Doctrine/Migrations/Provider/SchemaProvider.php

@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Migrations\Provider;
+
+use Doctrine\DBAL\Schema\Schema;
+
+/**
+ * The SchemaProvider defines the interface used to create a Doctrine\DBAL\Schema\Schema instance that
+ * represents the current state of your database.
+ */
+interface SchemaProvider
+{
+    public function createSchema(): Schema;
+}

vendor/doctrine/migrations/lib/Doctrine/Migrations/Provider/StubSchemaProvider.php

@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Migrations\Provider;
+
+use Doctrine\DBAL\Schema\Schema;
+
+/**
+ * The StubSchemaProvider takes a Doctrine\DBAL\Schema\Schema instance through the constructor and returns it
+ * from the createSchema() method.
+ */
+final class StubSchemaProvider implements SchemaProvider
+{
+    private Schema $toSchema;
+
+    public function __construct(Schema $schema)
+    {
+        $this->toSchema = $schema;
+    }
+
+    public function createSchema(): Schema
+    {
+        return $this->toSchema;
+    }
+}