Use a different path for the Kernel cache if possible

CHANGELOG.md

@@ -11,6 +11,12 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
   There are no needs to dump it for every config change. Also, this patch
   removes `Config::$changed` variable that is no longer needed
   [#2035](https://github.com/phalcon/zephir/pull/2035)
+- Use a different path for the Kernel cache if possible.
+  This patch fixes a cache collision issue. The issue is after creating the
+  cache and filling it with a project-specific configuration, there is no
+  way to invalidate it. Any next project will use the same Kernel cache and
+  the same Kernel configuration (if any).
+  [#2036](https://github.com/phalcon/zephir/pull/2036)
 
 ### Changed
 - Improved type hint for arrays when generating stubs

Library/DependencyInjection/ZephirKernel.php

@@ -12,12 +12,15 @@
 namespace Zephir\DependencyInjection;
 
 use const DIRECTORY_SEPARATOR;
+use Exception;
 use Oneup\FlysystemBundle\OneupFlysystemBundle;
+use RuntimeException;
 use Symfony\Bundle\MonologBundle\MonologBundle;
 use Symfony\Component\Config\Loader\LoaderInterface;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\HttpKernel\Bundle\BundleInterface;
 use Symfony\Component\HttpKernel\Kernel;
+use Throwable;
 use Zephir\DependencyInjection\CompilerPass\CollectCommandsToApplicationCompilerPass;
 use function Zephir\is_macos;
 use function Zephir\is_windows;
@@ -61,7 +64,7 @@ public function registerBundles()
      *
      * @param LoaderInterface $loader
      *
-     * @throws \Exception|\Throwable
+     * @throws Exception|Throwable
      */
     public function registerContainerConfiguration(LoaderInterface $loader)
     {
@@ -77,10 +80,8 @@ public function registerContainerConfiguration(LoaderInterface $loader)
      *
      * @return string
      */
-    public function getCacheDir()
+    public function getCacheDir(): string
     {
-        // allows container rebuild when config or version changes
-        $hash = Zephir::VERSION.$this->environment.serialize($this->extraConfigFiles);
         $home = getenv('HOME') ?: (getenv('HOMEDRIVE').DIRECTORY_SEPARATOR.getenv('HOMEPATH'));
 
         if (is_macos()) {
@@ -94,20 +95,44 @@ public function getCacheDir()
             $cacheDir .= '/zephir';
         }
 
-        $path = $cacheDir.DIRECTORY_SEPARATOR.substr(md5($hash), 0, 16);
-        if (!is_dir($path) && !mkdir($path, 0777, true) && !is_dir($path)) {
-            throw new \RuntimeException(sprintf('Directory "%s" was not created', $path));
+        $path = $cacheDir.DIRECTORY_SEPARATOR.$this->getPathSalt();
+        if (!is_dir($path) && !mkdir($path, 0755, true) && !is_dir($path)) {
+            throw new RuntimeException(
+                sprintf('Unable to create cache directory: "%s"', $path)
+            );
         }
 
         return $path;
     }
 
+    /**
+     * Allows container rebuild when config or version changes.
+     * This also used to get unique path to kernel logs.
+     *
+     * @return string
+     */
+    private function getPathSalt(): string
+    {
+        $prefix =
+            Zephir::VERSION.
+            $this->environment.
+            serialize($this->extraConfigFiles);
+
+        $localConfig = $this->startedDir.DIRECTORY_SEPARATOR.'config.json';
+        $suffix = $this->startedDir;
+        if (file_exists($localConfig)) {
+            $suffix = md5_file($localConfig);
+        }
+
+        return substr(md5("{$prefix}{$suffix}"), 0, 16);
+    }
+
     /**
      * {@inheritdoc}
      *
      * @return string
      */
-    public function getLogDir()
+    public function getLogDir(): string
     {
         $home = getenv('HOME') ?: (getenv('HOMEDRIVE').DIRECTORY_SEPARATOR.getenv('HOMEPATH'));
 
@@ -123,9 +148,11 @@ public function getLogDir()
             $stateDir .= '/zephir';
         }
 
-        $path = $stateDir.DIRECTORY_SEPARATOR.Zephir::VERSION;
-        if (!is_dir($path) && !mkdir($path, 0777, true) && !is_dir($path)) {
-            throw new \RuntimeException(sprintf('Directory "%s" was not created', $path));
+        $path = $stateDir.DIRECTORY_SEPARATOR.$this->getPathSalt();
+        if (!is_dir($path) && !mkdir($path, 0755, true) && !is_dir($path)) {
+            throw new RuntimeException(
+                sprintf('Unable to create logs directory: "%s"', $path)
+            );
         }
 
         return $path;
@@ -136,15 +163,17 @@ public function getLogDir()
      *
      * @return string The project root dir
      */
-    public function getProjectDir()
+    public function getProjectDir(): string
     {
-        return \dirname(\dirname(__DIR__));
+        return \dirname(__DIR__, 2);
     }
 
     /**
      * {@inheritdoc}
+     *
+     * @return string
      */
-    public function getRootDir()
+    public function getRootDir(): string
     {
         return \dirname(__DIR__);
     }
@@ -154,7 +183,7 @@ public function getRootDir()
      *
      * @return string The local cache dir
      */
-    public function getStartedDir()
+    public function getStartedDir(): string
     {
         return $this->startedDir.'/.zephir';
     }
@@ -174,7 +203,7 @@ protected function build(ContainerBuilder $containerBuilder)
      *
      * @return array An array of kernel parameters
      */
-    protected function getKernelParameters()
+    protected function getKernelParameters(): array
     {
         $parameters = parent::getKernelParameters();
         $parameters['kernel.local_cache_dir'] = $this->getStartedDir();

Library/FileSystem/FileSystemInterface.php

@@ -18,7 +18,7 @@ interface FileSystemInterface
      *
      * @return bool
      */
-    public function isInitialized();
+    public function isInitialized(): bool;
 
     /**
      * Initialize the filesystem.
@@ -32,7 +32,7 @@ public function initialize();
      *
      * @return bool
      */
-    public function exists($path);
+    public function exists(string $path): bool;
 
     /**
      * Creates a directory inside the temporary container.
@@ -41,7 +41,7 @@ public function exists($path);
      *
      * @return bool
      */
-    public function makeDirectory($path);
+    public function makeDirectory(string $path): bool;
 
     /**
      * Returns a temporary entry as an array.
@@ -50,7 +50,7 @@ public function makeDirectory($path);
      *
      * @return array
      */
-    public function file($path);
+    public function file(string $path): array;
 
     /**
      * Requires a file from the temporary directory.
@@ -59,7 +59,7 @@ public function file($path);
      *
      * @return mixed
      */
-    public function requireFile($path);
+    public function requireFile(string $path);
 
     /**
      * Attempts to remove recursively the temporary directory with all subdirectories and files.
@@ -72,7 +72,7 @@ public function clean();
      * @param string $path
      * @param string $data
      */
-    public function write($path, $data);
+    public function write(string $path, string $data);
 
     /**
      * Writes data from a temporary entry.
@@ -81,14 +81,14 @@ public function write($path, $data);
      *
      * @return string
      */
-    public function read($path);
+    public function read(string $path): string;
 
     /**
      * Deletes a temporary entry.
      *
      * @param string $path
      */
-    public function delete($path);
+    public function delete(string $path);
 
     /**
      * Generate a hash value using the contents of a given file.
@@ -99,7 +99,7 @@ public function delete($path);
      *
      * @return string
      */
-    public function getHashFile($algorithm, $sourceFile, $useCache = false);
+    public function getHashFile(string $algorithm, string $sourceFile, $useCache = false): string;
 
     /**
      * Returns the modification time of a temporary entry.
@@ -108,7 +108,7 @@ public function getHashFile($algorithm, $sourceFile, $useCache = false);
      *
      * @return int
      */
-    public function modificationTime($path);
+    public function modificationTime(string $path): int;
 
     /**
      * Executes a command and saves the result into a temporary entry.
@@ -117,7 +117,7 @@ public function modificationTime($path);
      * @param string $descriptor
      * @param string $destination
      */
-    public function system($command, $descriptor, $destination);
+    public function system(string $command, string $descriptor, string $destination);
 
     /**
      * Normalizes path to be used as a temporary entry.
@@ -126,5 +126,5 @@ public function system($command, $descriptor, $destination);
      *
      * @return string
      */
-    public function normalizePath($path);
+    public function normalizePath(string $path): string;
 }