From 48e8249da93e135cca356c9152744200dea7c1a1 Mon Sep 17 00:00:00 2001
From: Lars Strojny <lars@strojny.net>
Date: Sat, 10 Feb 2018 00:41:50 +0100
Subject: [PATCH] Make kernel build time optionally deterministic

---
 src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php | 3 ++-
 src/Symfony/Component/HttpKernel/Kernel.php                    | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php b/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
index 0e34dc43da..9461e1ccb5 100644
--- a/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
+++ b/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
@@ -119,6 +119,7 @@ class PhpDumper extends Dumper
             'debug' => true,
             'hot_path_tag' => 'container.hot_path',
             'inline_class_loader_parameter' => 'container.dumper.inline_class_loader',
+            'build_time' => time(),
         ), $options);
 
         $this->namespace = $options['namespace'];
@@ -216,7 +217,7 @@ EOF;
             array_pop($code);
             $code["Container{$hash}/{$options['class']}.php"] = substr_replace($files[$options['class'].'.php'], "<?php\n\nnamespace Container{$hash};\n", 0, 6);
             $namespaceLine = $this->namespace ? "\nnamespace {$this->namespace};\n" : '';
-            $time = time();
+            $time = $options['build_time'];
             $id = hash('crc32', $hash.$time);
 
             $code[$options['class'].'.php'] = <<<EOF
diff --git a/src/Symfony/Component/HttpKernel/Kernel.php b/src/Symfony/Component/HttpKernel/Kernel.php
index 7bac6edc57..cd1db6c036 100644
--- a/src/Symfony/Component/HttpKernel/Kernel.php
+++ b/src/Symfony/Component/HttpKernel/Kernel.php
@@ -855,6 +855,7 @@ abstract class Kernel implements KernelInterface, RebootableInterface, Terminabl
             'as_files' => true,
             'debug' => $this->debug,
             'inline_class_loader_parameter' => \PHP_VERSION_ID >= 70000 && !$this->loadClassCache && !class_exists(ClassCollectionLoader::class, false) ? 'container.dumper.inline_class_loader' : null,
+            'build_time' => $container->hasParameter('kernel.container_build_time') ? $container->getParameter('kernel.container_build_time') : time(),
         ));
 
         $rootCode = array_pop($content);