init

wp-content/mu-plugins/sqlite-database-integration/wp-includes/sqlite/db.php

@@ -0,0 +1,65 @@
+<?php
+/**
+ * Main integration file.
+ *
+ * @package wp-sqlite-integration
+ * @since 1.0.0
+ */
+
+// Require the constants file.
+require_once dirname( __DIR__, 2 ) . '/constants.php';
+
+// Bail early if DB_ENGINE is not defined as sqlite.
+if ( ! defined( 'DB_ENGINE' ) || 'sqlite' !== DB_ENGINE ) {
+	return;
+}
+
+if ( ! extension_loaded( 'pdo' ) ) {
+	wp_die(
+		new WP_Error(
+			'pdo_not_loaded',
+			sprintf(
+				'<h1>%1$s</h1><p>%2$s</p>',
+				'PHP PDO Extension is not loaded',
+				'Your PHP installation appears to be missing the PDO extension which is required for this version of WordPress and the type of database you have specified.'
+			)
+		),
+		'PHP PDO Extension is not loaded.'
+	);
+}
+
+if ( ! extension_loaded( 'pdo_sqlite' ) ) {
+	wp_die(
+		new WP_Error(
+			'pdo_driver_not_loaded',
+			sprintf(
+				'<h1>%1$s</h1><p>%2$s</p>',
+				'PDO Driver for SQLite is missing',
+				'Your PHP installation appears not to have the right PDO drivers loaded. These are required for this version of WordPress and the type of database you have specified.'
+			)
+		),
+		'PDO Driver for SQLite is missing.'
+	);
+}
+
+require_once __DIR__ . '/class-wp-sqlite-lexer.php';
+require_once __DIR__ . '/class-wp-sqlite-query-rewriter.php';
+require_once __DIR__ . '/class-wp-sqlite-translator.php';
+require_once __DIR__ . '/class-wp-sqlite-token.php';
+require_once __DIR__ . '/class-wp-sqlite-pdo-user-defined-functions.php';
+require_once __DIR__ . '/class-wp-sqlite-db.php';
+require_once __DIR__ . '/install-functions.php';
+
+/*
+ * Debug: Cross-check with MySQL.
+ * This is for debugging purpose only and requires files
+ * that are present in the GitHub repository
+ * but not the plugin published on WordPress.org.
+ */
+$crosscheck_tests_file_path = dirname( __DIR__, 2 ) . '/tests/class-wp-sqlite-crosscheck-db.php';
+if ( defined( 'SQLITE_DEBUG_CROSSCHECK' ) && SQLITE_DEBUG_CROSSCHECK && file_exists( $crosscheck_tests_file_path ) ) {
+	require_once $crosscheck_tests_file_path;
+	$GLOBALS['wpdb'] = new WP_SQLite_Crosscheck_DB();
+} else {
+	$GLOBALS['wpdb'] = new WP_SQLite_DB();
+}