add: php composer management

vendor/composer/installers/src/Composer/Installers/MediaWikiInstaller.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace Composer\Installers;
+
+class MediaWikiInstaller extends BaseInstaller
+{
+    /** @var array<string, string> */
+    protected $locations = array(
+        'core' => 'core/',
+        'extension' => 'extensions/{$name}/',
+        'skin' => 'skins/{$name}/',
+    );
+
+    /**
+     * Format package name.
+     *
+     * For package type mediawiki-extension, cut off a trailing '-extension' if present and transform
+     * to CamelCase keeping existing uppercase chars.
+     *
+     * For package type mediawiki-skin, cut off a trailing '-skin' if present.
+     */
+    public function inflectPackageVars(array $vars): array
+    {
+        if ($vars['type'] === 'mediawiki-extension') {
+            return $this->inflectExtensionVars($vars);
+        }
+
+        if ($vars['type'] === 'mediawiki-skin') {
+            return $this->inflectSkinVars($vars);
+        }
+
+        return $vars;
+    }
+
+    /**
+     * @param array<string, string> $vars
+     * @return array<string, string>
+     */
+    protected function inflectExtensionVars(array $vars): array
+    {
+        $vars['name'] = $this->pregReplace('/-extension$/', '', $vars['name']);
+        $vars['name'] = str_replace('-', ' ', $vars['name']);
+        $vars['name'] = str_replace(' ', '', ucwords($vars['name']));
+
+        return $vars;
+    }
+
+    /**
+     * @param array<string, string> $vars
+     * @return array<string, string>
+     */
+    protected function inflectSkinVars(array $vars): array
+    {
+        $vars['name'] = $this->pregReplace('/-skin$/', '', $vars['name']);
+
+        return $vars;
+    }
+}