Merge "Add CollationFa"

[lhc/web/wiklou.git] / includes / registration / ExtensionRegistry.php

diff --git a/includes/registration/ExtensionRegistry.php b/includes/registration/ExtensionRegistry.php
index 35044e1..70dc624 100644 (file)
--- a/includes/registration/ExtensionRegistry.php
+++ b/includes/registration/ExtensionRegistry.php
@@ -31,7 +31,7 @@ class ExtensionRegistry {
        /**
         * Bump whenever the registration cache needs resetting
         */
-       const CACHE_VERSION = 3;
+       const CACHE_VERSION = 4;
 
        /**
         * Special key that defines the merge strategy
@@ -59,6 +59,13 @@ class ExtensionRegistry {
         */
        protected $queued = [];
 
+       /**
+        * Whether we are done loading things
+        *
+        * @var bool
+        */
+       private $finished = false;
+
        /**
         * Items in the JSON file that aren't being
         * set as globals
@@ -84,9 +91,8 @@ class ExtensionRegistry {
        }
 
        public function __construct() {
-               // We use a try/catch instead of the $fallback parameter because
-               // we don't want to fail here if $wgObjectCaches is not configured
-               // properly for APC setup
+               // We use a try/catch because we don't want to fail here
+               // if $wgObjectCaches is not configured properly for APC setup
                try {
                        $this->cache = MediaWikiServices::getInstance()->getLocalServerObjectCache();
                } catch ( MWException $e ) {
@@ -115,12 +121,23 @@ class ExtensionRegistry {
                $this->queued[$path] = $mtime;
        }
 
+       /**
+        * @throws MWException If the queue is already marked as finished (no further things should
+        *  be loaded then).
+        */
        public function loadFromQueue() {
                global $wgVersion;
                if ( !$this->queued ) {
                        return;
                }
 
+               if ( $this->finished ) {
+                       throw new MWException(
+                               "The following paths tried to load late: "
+                               . implode( ', ', array_keys( $this->queued ) )
+                       );
+               }
+
                // A few more things to vary the cache on
                $versions = [
                        'registration' => self::CACHE_VERSION,
@@ -165,6 +182,15 @@ class ExtensionRegistry {
                $this->queued = [];
        }
 
+       /**
+        * After this is called, no more extensions can be loaded
+        *
+        * @since 1.29
+        */
+       public function finish() {
+               $this->finished = true;
+       }
+
        /**
         * Process a queue of extensions and return their extracted data
         *
@@ -188,6 +214,19 @@ class ExtensionRegistry {
                        if ( !is_array( $info ) ) {
                                throw new Exception( "$path is not a valid JSON file." );
                        }
+
+                       // Check any constraints against MediaWiki core
+                       $requires = $processor->getRequirements( $info );
+                       if ( isset( $requires[self::MEDIAWIKI_CORE] )
+                               && !$coreVersionParser->check( $requires[self::MEDIAWIKI_CORE] )
+                       ) {
+                               // Doesn't match, mark it as incompatible.
+                               $incompatible[] = "{$info['name']} is not compatible with the current "
+                                       . "MediaWiki core (version {$wgVersion}), it requires: " . $requires[self::MEDIAWIKI_CORE]
+                                       . '.';
+                               continue;
+                       }
+
                        if ( !isset( $info['manifest_version'] ) ) {
                                // For backwards-compatability, assume a version of 1
                                $info['manifest_version'] = 1;
@@ -196,21 +235,12 @@ class ExtensionRegistry {
                        if ( $version < self::OLDEST_MANIFEST_VERSION || $version > self::MANIFEST_VERSION ) {
                                throw new Exception( "$path: unsupported manifest_version: {$version}" );
                        }
+
                        $autoload = $this->processAutoLoader( dirname( $path ), $info );
                        // Set up the autoloader now so custom processors will work
                        $GLOBALS['wgAutoloadClasses'] += $autoload;
                        $autoloadClasses += $autoload;
-                       // Check any constraints against MediaWiki core
-                       $requires = $processor->getRequirements( $info );
-                       if ( isset( $requires[self::MEDIAWIKI_CORE] )
-                               && !$coreVersionParser->check( $requires[self::MEDIAWIKI_CORE] )
-                       ) {
-                               // Doesn't match, mark it as incompatible.
-                               $incompatible[] = "{$info['name']} is not compatible with the current "
-                                       . "MediaWiki core (version {$wgVersion}), it requires: " . $requires[self::MEDIAWIKI_CORE]
-                                       . '.';
-                               continue;
-                       }
+
                        // Get extra paths for later inclusion
                        $autoloaderPaths = array_merge( $autoloaderPaths,
                                $processor->getExtraAutoloaderPaths( dirname( $path ), $info ) );
@@ -259,6 +289,9 @@ class ExtensionRegistry {
                                case 'array_merge_recursive':
                                        $GLOBALS[$key] = array_merge_recursive( $GLOBALS[$key], $val );
                                        break;
+                               case 'array_replace_recursive':
+                                       $GLOBALS[$key] = array_replace_recursive( $GLOBALS[$key], $val );
+                                       break;
                                case 'array_plus_2d':
                                        $GLOBALS[$key] = wfArrayPlus2d( $GLOBALS[$key], $val );
                                        break;
@@ -279,9 +312,6 @@ class ExtensionRegistry {
                foreach ( $info['autoloaderPaths'] as $path ) {
                        require_once $path;
                }
-               foreach ( $info['callbacks'] as $cb ) {
-                       call_user_func( $cb );
-               }
 
                $this->loaded += $info['credits'];
                if ( $info['attributes'] ) {
@@ -291,6 +321,10 @@ class ExtensionRegistry {
                                $this->attributes = array_merge_recursive( $this->attributes, $info['attributes'] );
                        }
                }
+
+               foreach ( $info['callbacks'] as $name => $cb ) {
+                       call_user_func( $cb, $info['credits'][$name] );
+               }
        }
 
        /**