step_01.php

<?php
ini_set('memory_limit', -1);
error_reporting(E_ALL);
$SYSTEM_ROOT = '';

if ((php_sapi_name() == 'cli')) {
    if (isset($_SERVER['argv'][1])) {
        $SYSTEM_ROOT = $_SERVER['argv'][1];
    }

    $err_msg = "ERROR: You need to supply the path to the System Root as the first argument.\n";

} else {
    if (isset($_GET['SYSTEM_ROOT'])) {
        $SYSTEM_ROOT = $_GET['SYSTEM_ROOT'];
    }

    $err_msg = '
    <div style="background-color: red; color: white; font-weight: bold;">
        You need to supply the path to the System Root as a query string variable called SYSTEM_ROOT
    </div>
    ';
}

if (empty($SYSTEM_ROOT)) {
    $err_msg .= "Usage: php install/step_01.php <PATH_TO_MATRIX>\n";
    echo $err_msg;
    exit();
}

if (!is_dir($SYSTEM_ROOT) || !is_readable($SYSTEM_ROOT.'/core/include/init.inc')) {
    $err_msg = "ERROR: Path provided doesn't point to a Matrix installation's System Root. Please provide correct path and try again.\n";
    $err_msg .= "Usage: php install/step_01.php <PATH_TO_MATRIX>\n";
    echo $err_msg;
    exit();
}

define('SQ_SYSTEM_ROOT',  $SYSTEM_ROOT);
define('SQ_INCLUDE_PATH', SQ_SYSTEM_ROOT.'/core/include');
define('SQ_LIB_PATH',     SQ_SYSTEM_ROOT.'/core/lib');
define('SQ_DATA_PATH',    SQ_SYSTEM_ROOT.'/data');
define('SQ_FUDGE_PATH',   SQ_SYSTEM_ROOT.'/fudge');
define('SQ_PHP_CLI',      (php_sapi_name() == 'cli'));

require_once SQ_INCLUDE_PATH.'/mysource_object.inc';
require_once SQ_INCLUDE_PATH.'/system_config.inc';

// override some of the default config values
define('SQ_CONF_PEAR_PATH', SQ_SYSTEM_ROOT.'/php_includes');

$cfg = new System_Config();
$cfg->save(Array(), TRUE);

// Copy the DB config sample to the data directory
// Only overwrite the file if there is no file exists already
if (!file_exists(SQ_DATA_PATH.'/private/conf/db.inc')) {
    copy(dirname(__FILE__).'/db-inc.sample', SQ_DATA_PATH.'/private/conf/db.inc');
}

// Do the same with the memcache config file
if (!file_exists(SQ_DATA_PATH.'/private/conf/memcache.inc')) {
    copy(dirname(__FILE__).'/memcache-inc.sample', SQ_DATA_PATH.'/private/conf/memcache.inc');
}

// reminder for chmod
echo 'Remember to give your system\'s Apache user write access to'."\n";
echo 'the cache and data directories of your Matrix install...'."\n";

?>