CmsExtension: Add custom homepage option (#68)

Author: filipjakub

src/CmsExtension.php

@@ -61,6 +61,7 @@ public function getConfigSchema(): Schema
 					'url' => Expect::string()->required(),
 				])->castTo('array'),
 			)),
+			'homepage' => Expect::string()->nullable(),
 		]);
 	}
 
@@ -157,13 +158,28 @@ public function beforeCompile(): void
 
 		/** @var ServiceDefinition $pluginManager */
 		$pluginManager = $this->getContainerBuilder()->getDefinitionByType(PluginManager::class);
+
+		// Homepage
+		$homepageSource = $this->config->homepage !== null
+			? $this->config->homepage : __DIR__ . '/../template/vue/homepage-default.js';
+
+		if (is_file($homepageSource) === false) {
+			if ($this->config->homepage !== null) {
+				throw new \RuntimeException(
+					'Custom homepage file "' . $this->config->homepage . '" does not exist. ' .
+					'Please check the path in your configuration or remove the homepage setting to use the default.'
+				);
+			}
+			throw new \RuntimeException('Default homepage file "' . $homepageSource . '" does not exist.');
+		}
+
 		$pluginManager->addSetup('?->addComponent(?)', ['@self', [
 			'key' => 'homepageDashboardDefault',
 			'name' => 'homepage-default',
 			'implements' => HomepagePlugin::class,
 			'componentClass' => VueComponent::class,
 			'view' => 'default',
-			'source' => __DIR__ . '/../template/vue/homepage-default.js',
+			'source' => $homepageSource,
 			'position' => 100,
 			'tab' => 'Dashboard',
 			'params' => [],