Makes the mu-plugin src directory configurable

README.md

@@ -114,3 +114,13 @@ If you work on Windows but use a Linux VM to run your development server, you ma
 	"force-unix-separator": true
 }
 ```
+
+## Modifying the src directory of the mu plugins
+
+You may wish to change the src directory you want the mu plugins to be loaded from. For example, on WordPress VIP projects 
+you may wish to load mu plugins from client-mu-plugins using this loader. To do this you can set a constant to tell the 
+mu plugin loader where your mu plugins are kept:
+
+```php
+define('MU_PLUGIN_LOADER_SRC_DIR', WPCOM_VIP_CLIENT_MU_PLUGIN_DIR . '/');
+```

src/lkwdwrd/mu-loader.php

@@ -31,7 +31,7 @@
  */
 if (! defined('WP_INSTALLING') || ! WP_INSTALLING ) {
 	// Run the loader unless installing
-	Loader\mu_loader();
+	Loader\mu_loader(false, Loader\PS, defined('MU_PLUGIN_LOADER_SRC_DIR') ? MU_PLUGIN_LOADER_SRC_DIR : Loader\MUDIR);
 }
 
 /**

src/lkwdwrd/util/loader.php

@@ -33,7 +33,7 @@
  */
 function mu_loader( $plugins = false, $ps = PS, $mudir = MUDIR ): void {
 	if ( ! $plugins ) {
-		$plugins = get_muplugins();
+		$plugins = get_muplugins(ABSPATH, WP_PLUGIN_DIR, $mudir);
 	}
 	foreach( $plugins as $plugin ) {
 		// Conditionally register the MU plugin in WordPress 3.9 or newer.