federator/maintenance.php

<?php
/**
 * SPDX-FileCopyrightText: 2024 Sascha Nitsch (grumpydeveloper) https://contentnation.net/@grumpydevelop
 * SPDX-License-Identifier: GPL-3.0-or-later
 *
 * @author Sascha Nitsch (grumpydeveloper)
 **/

function dbupgrade(\Federator\Main $main)
{
    $config = $main->getConfig();
    $maintenance = $config['maintenance'];
    $main->openDatabase($maintenance['username'], $maintenance['password']);
    $dbh = $main->getDatabase();
    if ($dbh === false) {
        die();
    }
    $sql = 'select `value` from settings where `key`="database_version"';
    try {
        $sth = $dbh->query($sql);
    } catch (mysqli_sql_exception) {
        $sth = false;
    }
    $version = '0';
    if ($sth instanceof mysqli_result) {
        $row = $sth->fetch_row();
        if (is_array($row)) {
            $version = $row[0];
        }
    }
    echo "current version: $version\n";
    $updateFolder = opendir("sql");
    if ($updateFolder === false) {
        die();
    }
    $updates = [];
    while (($file = readdir($updateFolder)) !== false) {
        $matches = [];
        if (preg_match('/^(\d{4}-\d{2}-\d{2}).sql$/', $file, $matches) == 1) {
            if (strcmp($matches[1], $version) > 0) { // file is newer than our version
                $updates[] = $file;
            }
        }
    }
    closedir($updateFolder);
    sort($updates);
    foreach ($updates as $update) {
        echo "applying update $update\n";
        $u = fopen('sql/' . $update, 'r');
        if ($u !== false) {
            try {
                $dbh->begin_transaction();
                // apply updates line by line
                while (($line = fgets($u)) !== false) {
                    $line = trim($line);
                    $dbh->query($line);
                }
                $dbh->commit();
            } catch (mysqli_sql_exception $e) {
                //print_r($e);
                echo "error while applying update $update: " . $e->getMessage() . "\n";
            }
            fclose($u);
        }
    }
}

function printUsage()
{
    echo "usage php maintenance.php <command>\n";
    echo "command can be one of:\n";
    echo " dbupgrade - this upgrades the db to the most recent version. Run this after you updated the program files\n";
    exit();
}

date_default_timezone_set("Europe/Berlin");
spl_autoload_register(static function (string $className) {
    $root = array_key_exists('DOCUMENT_ROOT', $_SERVER) ? $_SERVER['DOCUMENT_ROOT'] : '';
    // strip Federator from class path
    $className = str_replace('Federator\\', '', $className);
    include $root . 'php/' . str_replace("\\", "/", strtolower($className)) . '.php';
});

if ($argc < 2) {
    printUsage();
}

$main = new \Federator\Main('');
switch ($argv[1]) {
    case 'dbupgrade':
        dbupgrade($main);
        break;
    default:
        printUsage();
}