[Dependency-Injection] OPcache preload-file not being generated #34897
Description
Hello :)
Symfony version(s) affected: >= 4.4.0
Description
We tried to enable opcache preloading on php 7.4 but the App_KernelProdContainer.preload.php file is not being generated. For our cache we use a custom directory outside of the project-directory. This is accomplished by overriding getCacheDir in the Kernel. If we use the default implementation of getCacheDir the generated cache contains the preload file.
How to reproduce
- Override the Kernels
getCacheDir-Function and return a custom cache-dir outside of the projects path.
public function getCacheDir(): string
{
# different from kernel.project_dir
return '/var/application/cache/'.$this->environment;
}- run
bin/console cache:clear --env=prod - no preload-file present under
/var/application/cache/prod/
Possible Solution
In the PhpDumper-Class the autoload-file for the project is determined in the getAutoloadFile-method. The autoloader-file is only returned if it's path matches the $this->targetDirRegex, which is based on the target directory for the cache. This regex would match any autoloader contained in two directories higher than the cache-dir itself. Therefore it works if your cache is stored in %PROJECT_DIR%/var/cache/prod, but not if it is stored somewhere else.
The determination of the autoloader should therefore also/only include any files found under kernel.project_dir.
If my assumptions are correct I would happily provide a pull-request and try to fix this.
Additional context
- We use
/var/application/cachefor our cache and/var/www/symfonyfor the project itself. - We use docker's bind-mount to mount the project into the container (on dev, in production the code is contained in the image) and a standard docker volume to share the cache between different services.