Fixed bug #1591 : Autoloader failing to load arbitrary files when ins…

…talled_paths only set via a custom ruleset

package.xml

@@ -56,6 +56,7 @@ http://pear.php.net/dtd/package-2.0.xsd">
   - PHP_CodeSniffer\Files\File::findExtendedClassName() now supports extended interfaces
     -- Thanks to Martin Hujer for the patch
   - Fixed bug #1577 : Generic.InlineControlStructureSniff breaks with a comment between body and condition in do while loops
+  - Fixed bug #1591 : Autoloader failing to load arbitrary files when installed_paths only set via a custom ruleset
   - Fixed bug #1605 : Squiz.WhiteSpace.OperatorSpacing false positive on unary minus after comment
     -- Thanks to Juliette Reinders Folmer for the patch
  </notes>

src/Config.php

@@ -1561,6 +1561,15 @@ public static function setConfigData($key, $value, $temp=false)
 
         self::$configData = $phpCodeSnifferConfig;
 
+        // If the installed paths are being set, make sure all known
+        // standards paths are added to the autoloader.
+        if ($key === 'installed_paths') {
+            $installedStandards = Util\Standards::getInstalledStandardDetails();
+            foreach ($installedStandards as $name => $details) {
+                Autoload::addSearchPath($details['path'], $details['namespace']);
+            }
+        }
+
         return true;
 
     }//end setConfigData()