Cache to speedup consecutive runs (Proof of Concept)

.gitignore

@@ -4,6 +4,7 @@
 !/bin/phpcca.bat
 /.phive/
 /.phpunit.cache/
+/.phpcca.cache/
 /tmp/
 /tools/
 /benchmarks/storage/

composer.json

@@ -5,6 +5,7 @@
     "require": {
         "php": "^8.1",
         "nikic/php-parser": "^5.1",
+        "psr/cache": "^3.0",
         "symfony/console": "^6.0||^7.0",
         "symfony/config": "^6.0||^7.0",
         "symfony/yaml": "^6.0||^7.0",

config.yml

@@ -40,6 +40,9 @@ cognitive:
       threshold: 1
       scale: 1.0
       enabled: true
+  cache:
+    enabled: false
+    directory: './.phpcca.cache'
   # Example of custom reporters:
   # customReporters:
   #   cognitive:

src/Application.php

@@ -21,6 +21,7 @@
 use Phauthentic\CognitiveCodeAnalysis\Business\Cognitive\ScoreCalculator;
 use Phauthentic\CognitiveCodeAnalysis\Business\MetricsFacade;
 use Phauthentic\CognitiveCodeAnalysis\Business\Utility\DirectoryScanner;
+use Phauthentic\CognitiveCodeAnalysis\Cache\FileCache;
 use Phauthentic\CognitiveCodeAnalysis\Command\ChurnCommand;
 use Phauthentic\CognitiveCodeAnalysis\Command\ChurnSpecifications\ChurnValidationSpecificationFactory;
 use Phauthentic\CognitiveCodeAnalysis\Command\CognitiveMetricsCommand;
@@ -42,6 +43,7 @@
 use PhpParser\NodeTraverser;
 use PhpParser\NodeTraverserInterface;
 use PhpParser\ParserFactory;
+use Psr\Cache\CacheItemPoolInterface;
 use Symfony\Component\Config\Definition\Processor;
 use Symfony\Component\Console\Application as SymfonyApplication;
 use Symfony\Component\Console\Input\ArgvInput;
@@ -99,6 +101,12 @@ private function registerCoreServices(): void
         $this->containerBuilder->register(ConfigService::class, ConfigService::class)
             ->setPublic(true);
 
+        $this->containerBuilder->register(CacheItemPoolInterface::class, FileCache::class)
+            ->setArguments([
+                './.phpcca.cache' // Default cache directory, can be overridden by config
+            ])
+            ->setPublic(true);
+
         $this->containerBuilder->register(Baseline::class, Baseline::class)
             ->setPublic(true);
 
@@ -242,7 +250,8 @@ private function bootstrapMetricsCollectors(): void
                 new Reference(Parser::class),
                 new Reference(DirectoryScanner::class),
                 new Reference(ConfigService::class),
-                new Reference(MessageBusInterface::class)
+                new Reference(MessageBusInterface::class),
+                new Reference(CacheItemPoolInterface::class)
             ])
             ->setPublic(true);
     }

src/Business/Cognitive/CognitiveMetricsCollection.php

@@ -130,6 +130,8 @@ public function groupBy(string $property): array
             $grouped[$key]->add($metric);
         }
 
+        ksort($grouped);
+
         return $grouped;
     }