feat: basic manifest loading with caching

.gitignore

@@ -4,6 +4,7 @@ tmp/
 *.bak
 *.swp
 *~.nib
+example/cache
 data/
 local.properties
 .settings/

example/example.php

@@ -19,13 +19,19 @@
 $arrayRepository = new ArrayResourceRepository($context);
 $context->addRepository($arrayRepository);
 
+$loader = new ResourceLoader();
+
+$yaml = file_get_contents(__DIR__ . '/xillion.manifest.yaml');
+$manifestConfig = Yaml::parse($yaml);
+
+$loader->loadManifest($arrayRepository, $manifestConfig, __DIR__ . '/cache');
 
+/*
 $filenames = [
     __DIR__ . '/../assets/xacml-10.xillion.cloud.yaml',
     __DIR__ . '/../assets/core.xillion.cloud.yaml',
     __DIR__ . '/example.linkorb.com.yaml',
 ];
-$loader = new ResourceLoader();
 
 foreach ($filenames as $filename) {
     if (!file_exists($filename)) {
@@ -36,6 +42,9 @@
     $config = Yaml::parse($yaml);
     $loader->load($arrayRepository, $config['resources']);
 }
+*/
+
+
 
 foreach ($context->getResources() as $resource) {
     echo "\e[32m" . $resource->getId() . "\e[0m";

example/xillion.manifest.yaml

@@ -0,0 +1,8 @@
+dependencies:
+  xacml-10.xillion.cloud:
+    url: https://raw.githubusercontent.com/linkorb/xillion/master/assets/xacml-10.xillion.cloud.yaml
+  core.xillion.cloud:
+    url: https://raw.githubusercontent.com/linkorb/xillion/master/assets/core.xillion.cloud.yaml
+  example.linkorb.com:
+    url: https://raw.githubusercontent.com/linkorb/xillion/master/example/example.linkorb.com.yaml
+

src/Core/Resource/ResourceLoader.php

@@ -3,6 +3,7 @@
 namespace Xillion\Core\Resource;
 
 use Xillion\Core\ResourceRepository\ResourceRepositoryInterface;
+use Symfony\Component\Yaml\Yaml;
 use RuntimeException;
 
 class ResourceLoader
@@ -16,4 +17,42 @@ public function load(ResourceRepositoryInterface $repository, array $config): vo
         }
     }
 
+    public function loadManifest(ResourceRepositoryInterface $repository, array $manifest, ?string $cachePath): void
+    {
+        foreach (($manifest['dependencies'] ?? []) as $packageName => $packageConfig) {
+            $yaml = null;
+            $filename = null;
+            if ($cachePath) {
+                if (!file_exists($cachePath)) {
+                    mkdir($cachePath, 0777, true);
+                }
+
+                $filename = $cachePath  . '/' . $packageName . '.yaml';
+                if (file_exists($filename)) {
+                    $yaml = file_get_contents($filename);
+                }
+            }
+
+            if (!$yaml) {
+                $url = $packageConfig['url'] ?? null;
+                if (!$url) {
+                    throw new RuntimeException("Package $packageName does not have a source URL specified");
+                }
+
+                $yaml = file_get_contents($url);
+            }
+
+            if (!$yaml) {
+                throw new RuntimeException("Could not load yaml definition for package " . $packageName);
+            }
+
+            if ($cachePath) {
+                file_put_contents($filename, $yaml);
+            }
+
+            $config = Yaml::parse($yaml);
+            $this->load($repository, $config['resources'] ?? []);
+        }
+    }
+
 }