Issue #3236264 - Use yaml parser

Closes #3236264

src/UnusedModulesHelperService.php

@@ -3,6 +3,7 @@
 namespace Drupal\unused_modules;
 
 use Composer\InstalledVersions;
+use Drupal\Component\Serialization\Yaml;
 use Drupal\Core\Extension\Extension;
 use Drupal\Core\Extension\ExtensionDiscovery;
 
@@ -185,18 +186,11 @@ class UnusedModulesHelperService implements UnusedModulesHelperServiceInterface
           $error_message = "No .info.yml file found for module '" . $module->getName() . "'";
           throw new UnusedModulesException($error_message);
         }
-        $info_file = file($module->getPathname(), FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
-
-        // Traverse all lines in .info and look for the line that starts with
-        // "project". When found, add the project name to the module object.
-        foreach ($info_file as $line) {
-          if (substr($line, 0, 7) === "project") {
-            // Remove "project = " prefix.
-            $project = str_replace("project: ", "", $line);
-            // Remove surrounding single-quotes.
-            $project = str_replace("'", "", $project);
-            $module->projectName = $project;
-          }
+
+        // Add the project name to the module object.
+        $info_file = Yaml::decode(file_get_contents($module->getPathname()));
+        if (!empty($info_file['project'])) {
+          $module->projectName = $info_file['project'];
         }
 
         if (!$module->projectName) {