Fred Wu

<?php

if ( ! fopen('application/config/config.php', 'r'))
{
    die("Please place this script at the same level as your application directory.\n\n");
}

fwrite(STDOUT, "Are you sure you want to migrate the current application from pre 3.0 to 2.3? (Type 'y' to continue)\n");

$continue = fgetc(STDIN);

if ($continue != strtolower('y'))
{
    fwrite(STDOUT, "Bye!\n\n");
}
else
{
    define('DOCROOT', getcwd().DIRECTORY_SEPARATOR);
    define('APPPATH', str_replace('\\', '/', realpath('application')).'/');
    // include_once 'application/config/config.php';

    // ----------------------------------------

    fwrite(STDOUT, "Starting migration, please wait ...\n\n");

    // ----------------------------------------
    // Backup
    // ----------------------------------------

    fwrite(STDOUT, "Backing up your application folder ...\n\n");

    exec('mkdir application.pre30');
    exec('cp -R application/* application.pre30');

    // ----------------------------------------
    // Migration - File structure
    // ----------------------------------------

    fwrite(STDOUT, "Creating new file structure ...\n\n");

    exec('mkdir application/controllers');
    exec('mkdir application/helpers');
    exec('mkdir application/libraries');
    exec('mkdir application/models');

    // ----------------------------------------
    // Migration - Moving files
    // ----------------------------------------

    fwrite(STDOUT, "Moving files ...\n\n");

    exec('mv application/classes/controller/* application/controllers');
    exec('mv application/classes/model/* application/models');

    if ($handle = opendir(APPPATH.'classes/'))
    {
        while (false !== ($file = readdir($handle)))
        {
            if ($file != "." && $file != ".." && $file != '.DS_Store' && substr($file, -3) == 'php')
            {
                $filename = $file;
                if (substr($file, 0, 3) == 'MY_')
                {
                    $filename = substr($file, 3);
                }

                $type = ($filename[0] < 'a') ? 'helpers' : 'libraries';

                rename("application/classes/$file", "application/$type/$file");
            }
        }
        closedir($handle);
    }

    exec('rm -rf application/classes');

    // ----------------------------------------
    // Migration - Controllers
    // ----------------------------------------

    fwrite(STDOUT, "Renaming controllers ...\n\n");

    if ($handle = opendir(APPPATH.'controllers/'))
    {
        while (false !== ($file = readdir($handle)))
        {
            if ($file != "." && $file != ".." && $file != '.DS_Store' && substr($file, -3) == 'php')
            {
                $data = file_get_contents(APPPATH.'controllers/'.$file);

                $data = preg_replace('/Controller_(\w*)/m', '$1_Controller', $data);
                $data = preg_replace('/Model_(\w*)/m', '$1', $data);

                file_put_contents(APPPATH.'controllers/'.$file, $data);
            }
        }
        closedir($handle);
    }

    // ----------------------------------------
    // Migration - Models
    // ----------------------------------------

    fwrite(STDOUT, "Renaming models ...\n\n");

    if ($handle = opendir(APPPATH.'models/'))
    {
        while (false !== ($file = readdir($handle)))
        {
            if ($file != "." && $file != ".." && $file != '.DS_Store' && substr($file, -3) == 'php')
            {
                $data = file_get_contents(APPPATH.'models/'.$file);

                $data = preg_replace('/Model_(\w*)/m', '$1_Model', $data);

                file_put_contents(APPPATH.'models/'.$file, $data);
            }
        }
        closedir($handle);
    }

    // ----------------------------------------

    fwrite(STDOUT, "Migration completed!\n\n");
}

exit(0);

?>