From a36de5a9693db6efc4a35f030c27ca45b0090620 Mon Sep 17 00:00:00 2001
From: "Jonathan H. Wage" <jonwage@gmail.com>
Date: Thu, 3 Jan 2019 01:16:16 +0000
Subject: [PATCH] Use DateTimeImmutable instead of DateTime.

---
 lib/Doctrine/Migrations/Configuration/Configuration.php | 8 ++++----
 lib/Doctrine/Migrations/FileQueryWriter.php             | 4 ++--
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/lib/Doctrine/Migrations/Configuration/Configuration.php b/lib/Doctrine/Migrations/Configuration/Configuration.php
index e6555b4de5..f3d8efae0c 100644
--- a/lib/Doctrine/Migrations/Configuration/Configuration.php
+++ b/lib/Doctrine/Migrations/Configuration/Configuration.php
@@ -4,7 +4,7 @@
 
 namespace Doctrine\Migrations\Configuration;
 
-use DateTime;
+use DateTimeImmutable;
 use DateTimeInterface;
 use DateTimeZone;
 use Doctrine\Common\EventArgs;
@@ -97,7 +97,7 @@ public function __construct(
         $this->migrationFinder        = $migrationFinder;
         $this->queryWriter            = $queryWriter;
         $this->dependencyFactory      = $dependencyFactory;
-        $this->migrationsColumnLength = strlen((new DateTime())->format(self::VERSION_FORMAT));
+        $this->migrationsColumnLength = strlen((new DateTimeImmutable())->format(self::VERSION_FORMAT));
     }
 
     public function setName(string $name) : void
@@ -320,7 +320,7 @@ public function createMigrationTable() : bool
     public function getDateTime(string $version) : string
     {
         $datetime = str_replace('Version', '', $version);
-        $datetime = DateTime::createFromFormat(self::VERSION_FORMAT, $datetime);
+        $datetime = DateTimeImmutable::createFromFormat(self::VERSION_FORMAT, $datetime);
 
         if ($datetime === false) {
             return '';
@@ -331,7 +331,7 @@ public function getDateTime(string $version) : string
 
     public function generateVersionNumber(?DateTimeInterface $now = null) : string
     {
-        $now = $now ?: new DateTime('now', new DateTimeZone('UTC'));
+        $now = $now ?: new DateTimeImmutable('now', new DateTimeZone('UTC'));
 
         return $now->format(self::VERSION_FORMAT);
     }
diff --git a/lib/Doctrine/Migrations/FileQueryWriter.php b/lib/Doctrine/Migrations/FileQueryWriter.php
index 9bb74144d8..8a2b47205e 100644
--- a/lib/Doctrine/Migrations/FileQueryWriter.php
+++ b/lib/Doctrine/Migrations/FileQueryWriter.php
@@ -4,7 +4,7 @@
 
 namespace Doctrine\Migrations;
 
-use DateTime;
+use DateTimeImmutable;
 use DateTimeInterface;
 use Doctrine\Migrations\Generator\FileBuilder;
 use function file_put_contents;
@@ -41,7 +41,7 @@ public function write(
         array $queriesByVersion,
         ?DateTimeInterface $now = null
     ) : bool {
-        $now = $now ?? new DateTime();
+        $now = $now ?? new DateTimeImmutable();
 
         $string = $this->migrationFileBuilder
             ->buildMigrationFile($queriesByVersion, $direction, $now);