activate plugin in SQLite db

Author: aristath

activate.php

@@ -70,8 +70,14 @@ function sqlite_plugin_copy_db_file() {
 
 			// Get the db.copy.php file contents, replace placeholders and write it to the destination.
 			$file_contents = str_replace(
-				'{SQLITE_IMPLEMENTATION_FOLDER_PATH}',
-				__DIR__,
+				array(
+					'{SQLITE_IMPLEMENTATION_FOLDER_PATH}',
+					'{SQLITE_PLUGIN}',
+				),
+				array(
+					__DIR__,
+					str_replace( WP_PLUGIN_DIR . '/', '', SQLITE_MAIN_FILE ),
+				),
 				file_get_contents( __DIR__ . '/db.copy' )
 			);
 

db.copy

@@ -25,3 +25,19 @@ if ( ! defined( 'DATABASE_TYPE' ) ) {
 
 // Require the implementation from the plugin.
 require_once '{SQLITE_IMPLEMENTATION_FOLDER_PATH}/wp-includes/sqlite/db.php';
+
+// Activate the performance-lab plugin if it is not already activated.
+add_action(
+	'init',
+	function() {
+		if ( defined( 'SQLITE_MAIN_FILE' ) ) {
+			return;
+		}
+		if ( ! function_exists( 'activate_plugin' ) ) {
+			require_once ABSPATH . 'wp-admin/includes/plugin.php';
+		}
+		if ( is_plugin_inactive( '{SQLITE_PLUGIN}' ) ) {
+			activate_plugin( '{SQLITE_PLUGIN}' );
+		}
+	}
+);