Expose as vendor module

_config.php

@@ -7,28 +7,18 @@ use SilverStripe\CMS\Controllers\CMSPageEditController;
 use SilverStripe\CMS\Controllers\CMSPageHistoryController;
 use SilverStripe\CMS\Controllers\CMSPageSettingsController;
 use SilverStripe\CMS\Model\SiteTree;
+use SilverStripe\Core\Manifest\ModuleLoader;
 use SilverStripe\Forms\HTMLEditor\TinyMCEConfig;
 use SilverStripe\View\Parsers\ShortcodeParser;
 
-/**
- * Define constants
- *
- * - CMS_DIR: Path relative to webroot, e.g. "cms"
- * - CMS_PATH: Absolute filepath, e.g. "/var/www/my-webroot/cms"
- */
 call_user_func(function () {
-    // Check if CMS is root dir, or subdir
-    if (strcasecmp(__DIR__, BASE_PATH) === 0) {
-        $clientPath = 'client';
-    } else {
-        $clientPath = basename(__DIR__) . '/client';
-    }
+    $module = ModuleLoader::inst()->getManifest()->getModule('silverstripe/cms');
 
     // Enable insert-link to internal pages
     TinyMCEConfig::get('cms')
         ->enablePlugins(array(
-            'sslinkinternal' => "{$clientPath}/dist/js/TinyMCE_sslink-internal.js",
-            'sslinkanchor' => "{$clientPath}/dist/js/TinyMCE_sslink-anchor.js",
+            'sslinkinternal' => $module->getResource('client/dist/js/TinyMCE_sslink-internal.js')->getURL(),
+            'sslinkanchor' => $module->getResource('client/dist/js/TinyMCE_sslink-anchor.js')->getURL()
         ));
 });
 

composer.json

@@ -1,6 +1,6 @@
 {
     "name": "silverstripe/cms",
-    "type": "silverstripe-module",
+    "type": "silverstripe-vendormodule",
     "description": "The SilverStripe Content Management System",
     "homepage": "http://silverstripe.org",
     "license": "BSD-3-Clause",
@@ -25,7 +25,8 @@
         "silverstripe/framework": "^4@dev",
         "silverstripe/reports": "^4@dev",
         "silverstripe/siteconfig": "^4@dev",
-        "silverstripe/versioned": "^1@dev"
+        "silverstripe/versioned": "^1@dev",
+        "silverstripe/vendor-plugin": "^1.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^5.7",
@@ -37,7 +38,11 @@
         "branch-alias": {
             "4.x-dev": "4.0.x-dev",
             "dev-master": "5.x-dev"
-        }
+        },
+        "expose": [
+            "client/dist",
+            "client/lang"
+        ]
     },
     "scripts": {
         "lint": "phpcs -s code/ tests/php/ tests/behat/src/",