--- /dev/null
+<?php
+
+namespace Drush\Config\Loader;
+
+use Drush\Internal\Config\Yaml\Yaml;
+use Consolidation\Config\Loader\ConfigLoader;
+
+/**
+ * Load configuration files, and fill in any property values that
+ * need to be expanded.
+ */
+class YamlConfigLoader extends ConfigLoader
+{
+ public function load($path)
+ {
+ $this->setSourceName($path);
+
+ // We silently skip any nonexistent config files, so that
+ // clients may simply `load` all of their candidates.
+ if (!file_exists($path)) {
+ $this->config = [];
+ return $this;
+ }
+ $this->config = (array) Yaml::parse(file_get_contents($path));
+ return $this;
+ }
+}