librenms-librenms/includes/sql-schema/update.php

<?php

// MYSQL Check - FIXME
// 1 UNKNOWN

/*
 * LibreNMS Network Management and Monitoring System
 * Copyright (C) 2006-2012, Observium Developers - http://www.observium.org
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * See COPYING for more details.
 */

if (!isset($init_modules)  && php_sapi_name() == 'cli') {
    // Not called from within discovery, let's load up the necessary stuff.
    $init_modules = array();
    require realpath(__DIR__ . '/../..') . '/includes/init.php';
}

set_lock('schema');

$return = 0;

// only import build.sql to an empty database
$tables = dbFetchRows("SHOW TABLES FROM {$config['db_name']}");
if (empty($tables)) {
    echo "-- Creating base database structure\n";
    $step = 0;
    $sql_fh = fopen('build.sql', 'r');
    if ($sql_fh === false) {
        echo 'ERROR: Cannot open SQL build script '.$sql_file.PHP_EOL;
        $return = 1;
    }

    while (!feof($sql_fh)) {
        $line = fgetss($sql_fh);
        echo 'Step #'.$step++.' ...'.PHP_EOL;

        if (!empty($line)) {
            $creation = dbQuery($line);
            if (!$creation) {
                echo 'WARNING: Cannot execute query ('.$line.'): '.mysqli_error($database_link)."\n";
                $return = 1;
            }
        }
    }

    fclose($sql_fh);
}


d_echo("DB Schema update started....\n");

if (db_schema_is_current()) {
    d_echo("DB Schema already up to date.\n");
} else {
    // Set Database Character set and Collation
    dbQuery('ALTER DATABASE ? CHARACTER SET utf8 COLLATE utf8_unicode_ci;', array(array($config['db_name'])));

    $db_rev = get_db_schema();
    $insert = ($db_rev == 0); // if $db_rev == 0, insert the first update

    $updating = 0;
    foreach (get_schema_list() as $file_rev => $file) {
        if ($file_rev > $db_rev) {
            if (!$updating) {
                echo "-- Updating database schema\n";
            }

            printf('%03d -> %03d ...', $db_rev, $file_rev);

            $err = 0;
            if ($data = file_get_contents($file)) {
                foreach (explode("\n", $data) as $line) {
                    if (trim($line)) {
                        d_echo("$line \n");

                        if ($line[0] != '#') {
                            if (!mysqli_query($database_link, $line)) {
                                $err++;
                                d_echo(mysqli_error($database_link) . PHP_EOL);
                            }
                        }
                    }
                }

                echo " done ($err errors).\n";
            } else {
                echo " Could not open file! $file\n";
                $return = 1;
            }//end if

            $updating++;
            $db_rev = $file_rev;
            if ($insert) {
                dbInsert(array('version' => $db_rev), 'dbSchema');
                $insert = false;
            } else {
                dbUpdate(array('version' => $db_rev), 'dbSchema');
            }
        }//end if
    }//end foreach

    if ($updating) {
        echo "-- Done\n";
    }
}

release_lock('schema');