Migrate to official WordPress SQLite plugin that uses SQL parser (#152)

Migrates Playground from regexp-based [wp-sqlite-db](aaemnnosttv/wp-sqlite-db#55) to the official [sqlite-database-integration](https://github.com/WordPress/sqlite-database-integration) plugin which [translates queries using SQL parser](WordPress/sqlite-database-integration#9) instead of regular expressions. 

This makes for a more reliable SQLite integration that passes almost all WordPress unit tests.

[Learn more](aaemnnosttv/wp-sqlite-db#55) about the problem with regular expressions.

packages/playground/compile-wordpress/Dockerfile

@@ -29,10 +29,11 @@ RUN git clone https://github.com/WordPress/sqlite-database-integration.git \
     --branch main   \
     --single-branch \
     --depth 1 &&    \
+    rm -rf wordpress/wp-content/plugins/sqlite-database-integration/.git && \
     cat wordpress/wp-content/plugins/sqlite-database-integration/db.copy \
-        | sed 's#{SQLITE_IMPLEMENTATION_FOLDER_PATH}#'`pwd`'/wordpress/wp-content/plugins/sqlite-database-integration#g' \
-        | sed 's#{SQLITE_PLUGIN}#sqlite-database-integration#g' \
-        > wordpress/wp-content/db.php && \
+    | sed "s#{SQLITE_IMPLEMENTATION_FOLDER_PATH}#' . __DIR__ . '/plugins/sqlite-database-integration#g" \
+    | sed 's#{SQLITE_PLUGIN}#sqlite-database-integration#g' \
+    > wordpress/wp-content/db.php && \
     # Required by the SQLite integration plugin:
     cp wordpress/wp-config-sample.php wordpress/wp-config.php
 

packages/playground/remote/public/wp-5.9/wp-content/plugins/sqlite-database-integration/.editorconfig

@@ -0,0 +1,24 @@
+# This file is for unifying the coding style for different editors and IDEs
+# editorconfig.org
+
+# WordPress Coding Standards
+# https://make.wordpress.org/core/handbook/coding-standards/
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+indent_style = tab
+
+[*.yml]
+indent_style = space
+indent_size = 2
+
+[*.md]
+trim_trailing_whitespace = false
+
+[{*.txt,wp-config-sample.php}]
+end_of_line = crlf

packages/playground/remote/public/wp-5.9/wp-content/plugins/sqlite-database-integration/.gitattributes

@@ -0,0 +1,7 @@
+# Omit during export.
+.editorconfig export-ignore
+.gitattributes export-ignore
+.gitignore export-ignore
+composer.json export-ignore
+phpcs.xml.dist export-ignore
+tests/*.php export-ignore

packages/playground/remote/public/wp-5.9/wp-content/plugins/sqlite-database-integration/.gitignore

@@ -0,0 +1,2 @@
+vendor/
+composer.lock

packages/playground/remote/public/wp-5.9/wp-content/plugins/sqlite-database-integration/composer.json

@@ -0,0 +1,25 @@
+{
+	"name": "wordpress/sqlite-database-integration",
+	"license": "GPL-2.0-or-later",
+	"description": "SQLite integration plugin for WordPress.",
+	"homepage": "https://github.com/wordpress/sqlite-database-integration",
+	"keywords": [ "wordpress", "plugin", "database", "sqlite" ],
+	"support": {
+		"issues": "https://github.com/wordpress/sqlite-database-integration/issues"
+	},
+	"require": {
+		"php": ">=5.6"
+	},
+	"require-dev": {
+		"dealerdirect/phpcodesniffer-composer-installer": "^0.7.0",
+		"squizlabs/php_codesniffer": "3.7.0",
+		"wp-coding-standards/wpcs": "~2.3.0",
+		"phpcompatibility/phpcompatibility-wp": "~2.1.3",
+		"yoast/phpunit-polyfills": "^1.0.1"
+	},
+	"config": {
+		"allow-plugins": {
+			"dealerdirect/phpcodesniffer-composer-installer": true
+		}
+	}
+}

packages/playground/remote/public/wp-5.9/wp-content/plugins/sqlite-database-integration/db.copy

@@ -0,0 +1,47 @@
+<?php
+/**
+ * Plugin Name: SQLite integration (Drop-in)
+ * Version: 1.0.0
+ * Author: WordPress Performance Team
+ * Author URI: https://make.wordpress.org/performance/
+ *
+ * This file is auto-generated and copied from the sqlite plugin.
+ * Please don't edit this file directly.
+ *
+ * @package wp-sqlite-integration
+ */
+
+define( 'SQLITE_DB_DROPIN_VERSION', '1.8.0' );
+
+// Bail early if the SQLite implementation was not located in the plugin.
+if ( ! file_exists( '{SQLITE_IMPLEMENTATION_FOLDER_PATH}/wp-includes/sqlite/db.php' ) ) {
+	return;
+}
+
+// Constant for backward compatibility.
+if ( ! defined( 'DATABASE_TYPE' ) ) {
+	define( 'DATABASE_TYPE', 'sqlite' );
+}
+// Define SQLite constant.
+if ( ! defined( 'DB_ENGINE' ) ) {
+	define( 'DB_ENGINE', 'sqlite' );
+}
+
+// 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(
+	'admin_footer',
+	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}' );
+		}
+	}
+);

packages/playground/remote/public/wp-5.9/wp-content/plugins/sqlite-database-integration/phpcs.xml.dist

@@ -0,0 +1,39 @@
+<?xml version="1.0"?>
+<ruleset name="WordPress Coding Standards">
+	<description>Apply WordPress Coding Standards</description>
+
+	<!-- Only scan PHP files. -->
+	<arg name="extensions" value="php"/>
+
+	<!-- Set the memory limit to 256M.
+		 For most standard PHP configurations, this means the memory limit will temporarily be raised.
+		 Ref: https://github.com/squizlabs/PHP_CodeSniffer/wiki/Advanced-Usage#specifying-phpini-settings
+	-->
+	<ini name="memory_limit" value="256M"/>
+
+	<!-- Strip the filepaths down to the relevant bit. -->
+	<arg name="basepath" value="./"/>
+
+	<!-- Check up to 20 files simultaneously. -->
+	<arg name="parallel" value="20"/>
+
+	<!-- Show sniff codes in all reports. -->
+	<arg value="ps"/>
+
+	<file>.</file>
+
+	<rule ref="WordPress-Core"/>
+	<rule ref="WordPress-Docs"/>
+	<rule ref="WordPress.CodeAnalysis.EmptyStatement"/>
+
+	<!-- Directories and third party library exclusions. -->
+	<exclude-pattern>/vendor/*</exclude-pattern>
+
+	<!-- Allow the WP DB Class and related tests for usage of direct database access functions. -->
+	<rule ref="WordPress.DB.RestrictedClasses.mysql__PDO">
+		<exclude-pattern>/wp-includes/*.php</exclude-pattern>
+	</rule>
+	<rule ref="WordPress.DB.RestrictedFunctions">
+		<exclude-pattern>/wp-includes/*.php</exclude-pattern>
+	</rule>
+</ruleset>

packages/playground/remote/public/wp-5.9/wp-content/plugins/sqlite-database-integration/phpunit.xml.dist

@@ -0,0 +1,20 @@
+<phpunit
+		xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+		xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/9.2/phpunit.xsd"
+		bootstrap="tests/bootstrap.php"
+		backupGlobals="false"
+		colors="true"
+		beStrictAboutTestsThatDoNotTestAnything="true"
+		beStrictAboutOutputDuringTests="true"
+		convertErrorsToExceptions="true"
+		convertWarningsToExceptions="true"
+		convertNoticesToExceptions="true"
+		convertDeprecationsToExceptions="true"
+		>
+	<testsuites>
+		<!-- Default test suite to run all tests. -->
+		<testsuite name="default">
+			<directory suffix=".php">tests/</directory>
+		</testsuite>
+	</testsuites>
+</phpunit>

packages/playground/remote/public/wp-5.9/wp-content/plugins/sqlite-database-integration/readme.txt

@@ -0,0 +1,40 @@
+=== SQLite Database Integration ===
+
+Contributors:      wordpressdotorg, aristath
+Requires at least: 6.0
+Tested up to:      6.1
+Requires PHP:      5.6
+Stable tag:        2.0
+License:           GPLv2 or later
+License URI:       https://www.gnu.org/licenses/gpl-2.0.html
+Tags:              performance, database
+
+SQLite-integration plugin from the WordPress Performance Team.
+
+== Description ==
+
+The SQLite plugin is a community, feature plugin. The intent is to allow testing an SQLite integration with WordPress and gather feedback, with the goal of eventually landing it in WordPress core.
+
+This project is based on the original work of Kojima Toshiyasu and his SQLite Integration plugin, and the work of Evan Mattson and his WP SQLite DB plugin - See https://github.com/aaemnnosttv/wp-sqlite-db.
+
+It also includes code from the PHPMyAdmin project (specifically parts of the PHPMyAdmin/sql-parser library), licensed under the GPL v2 or later. More info on the PHPMyAdmin/sql-parser library can be found on [GitHub](https://github.com/phpmyadmin/sql-parser).
+
+== Frequently Asked Questions ==
+
+= What is the purpose of this plugin? =
+
+The primary purpose of the SQLite plugin is to allow testing the use of an SQLite database, with the goal to eventually land in WordPress core.
+
+You can read the original proposal on the [Make blog](https://make.wordpress.org/core/2022/09/12/lets-make-wordpress-officially-support-sqlite/), as well as the [call for testing](https://make.wordpress.org/core/2022/12/20/help-us-test-the-sqlite-implementation/) for more context and useful information.
+
+= Can I use this plugin on my production site? =
+
+Per the primary purpose of the plugin (see above), it can mostly be considered a beta testing plugin. To a degree, it should be okay to use it in production. However, as with every plugin, you are doing so at your own risk.
+
+= Where can I submit my plugin feedback? =
+
+Feedback is encouraged and much appreciated, especially since this plugin is a future WordPress core feature. If you need help with troubleshooting or have a question, suggestions, or requests, you can [submit them as an issue in the SQLite GitHub repository](https://github.com/wordpress/sqlite-database-integration/issues/new).
+
+= How can I contribute to the plugin? =
+
+Contributions are always welcome! Learn more about how to get involved in the [Core Performance Team Handbook](https://make.wordpress.org/performance/handbook/get-involved/).

packages/playground/remote/public/wp-6.0/wp-content/plugins/sqlite-database-integration/.editorconfig

@@ -0,0 +1,24 @@
+# This file is for unifying the coding style for different editors and IDEs
+# editorconfig.org
+
+# WordPress Coding Standards
+# https://make.wordpress.org/core/handbook/coding-standards/
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+indent_style = tab
+
+[*.yml]
+indent_style = space
+indent_size = 2
+
+[*.md]
+trim_trailing_whitespace = false
+
+[{*.txt,wp-config-sample.php}]
+end_of_line = crlf

packages/playground/remote/public/wp-6.0/wp-content/plugins/sqlite-database-integration/.gitattributes

@@ -0,0 +1,7 @@
+# Omit during export.
+.editorconfig export-ignore
+.gitattributes export-ignore
+.gitignore export-ignore
+composer.json export-ignore
+phpcs.xml.dist export-ignore
+tests/*.php export-ignore

packages/playground/remote/public/wp-6.0/wp-content/plugins/sqlite-database-integration/.gitignore

@@ -0,0 +1,2 @@
+vendor/
+composer.lock