X-Git-Url: https://git.heureux-cyclage.org/?p=lhc%2Fweb%2Fwiklou.git;a=blobdiff_plain;f=includes%2Fregistration%2FExtensionProcessor.php;h=5dc0b400fb9f763f7faff7797326dcabb46e917f;hp=ffc7a7e08e3b5605d26f8e7672e70e3f67d78e96;hb=5fa4cdf860c79b32ab6ef034c6d9420c2727f695;hpb=e73b63dd3b977eb3a1606d88f374a47ac0ae102c;ds=sidebyside

diff --git a/includes/registration/ExtensionProcessor.php b/includes/registration/ExtensionProcessor.php
index ffc7a7e08e..5dc0b400fb 100644
--- a/includes/registration/ExtensionProcessor.php
+++ b/includes/registration/ExtensionProcessor.php
@@ -450,7 +450,7 @@ class ExtensionProcessor implements Processor {
 			}
 			foreach ( $info['config'] as $key => $val ) {
 				if ( $key[0] !== '@' ) {
-					$this->globals["$prefix$key"] = $val;
+					$this->addConfigGlobal( "$prefix$key", $val );
 				}
 			}
 		}
@@ -478,11 +478,26 @@ class ExtensionProcessor implements Processor {
 				if ( isset( $data['path'] ) && $data['path'] ) {
 					$value = "$dir/$value";
 				}
-				$this->globals["$prefix$key"] = $value;
+				$this->addConfigGlobal( "$prefix$key", $value );
 			}
 		}
 	}
 
+	/**
+	 * Helper function to set a value to a specific global, if it isn't set already.
+	 *
+	 * @param string $key The config key with the prefix and anything
+	 * @param mixed $value The value of the config
+	 */
+	private function addConfigGlobal( $key, $value ) {
+		if ( array_key_exists( $key, $this->globals ) ) {
+			throw new RuntimeException(
+				"The configuration setting '$key' was already set by another extension,"
+				. " and cannot be set again." );
+		}
+		$this->globals[$key] = $value;
+	}
+
 	protected function extractServiceWiringFiles( $dir, array $info ) {
 		if ( isset( $info['ServiceWiringFiles'] ) ) {
 			foreach ( $info['ServiceWiringFiles'] as $path ) {