Magallanes/Mage/Command/BuiltIn/InstallCommand.php

<?php
/*
 * This file is part of the Magallanes package.
*
* (c) Andrés Montañez <andres@andresmontanez.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/

namespace Mage\Command\BuiltIn;

use Mage\Command\AbstractCommand;
use Mage\Console;

use Exception;

/**
 * Installs Magallanes in the Local System
 *
 * @author Andrés Montañez <andres@andresmontanez.com>
 */
class InstallCommand extends AbstractCommand
{
	/**
	 * Installs Magallanes
	 * @see \Mage\Command\AbstractCommand::run()
	 */
    public function run()
    {
    	Console::output('Installing <dark_gray>Magallanes</dark_gray>... ', 1, 0);

    	// Vars
    	$installDir = $this->getConfig()->getParameter('installDir', '/opt/magallanes');
    	$systemWide = $this->getConfig()->getParameter('systemWide', false);

    	// Clean vars
    	$baseDir = realpath(dirname($installDir));
    	$installDir = basename($installDir);

    	// Check if install dir is available
    	if (!is_dir($baseDir) || !is_writable($baseDir)) {
    		Console::output('<red>Failure: install directory is invalid.</red>', 0, 2);

		// Chck if it is a system wide install the user is root
    	} else if ($systemWide && (getenv('LOGNAME') != 'root')) {
    			Console::output('<red>Failure: you have to be root to perform a system wide install.</red>', 0, 2);

    	} else {
    		$destinationDir = $baseDir . '/' . $installDir;
    		if (!is_dir($destinationDir)) {
    			mkdir($destinationDir);
    		}

    		// Copy
    		$this->recursiveCopy('./', $destinationDir . '/' . MAGALLANES_VERSION);

    		// Check if there is already a symlink
    		if (file_exists($destinationDir . '/' . 'latest')
				    && is_link($destinationDir . '/' . 'latest')) {
    			unlink($destinationDir . '/' . 'latest');
    		}

    		// Create "latest" symlink
    		symlink(
    		    $destinationDir . '/' . MAGALLANES_VERSION,
    		    $destinationDir . '/' . 'latest'
    		);
    		chmod($destinationDir . '/' . MAGALLANES_VERSION . '/bin/mage', 0755);

    		if ($systemWide) {
    			if (!file_exists('/usr/bin/mage')) {
    				symlink($destinationDir . '/latest/bin/mage', '/usr/bin/mage');
    			}
    		}

    		Console::output('<light_green>Success!</light_green>', 0, 2);
    	}
    }

    /**
     * Copy Files
     * @param string $from
     * @param string $to
     * @return boolean
     */
    protected function recursiveCopy($from, $to)
    {
        if (is_dir($from)) {
            mkdir($to);
            $files = scandir($from);

            if (count($files) > 0) {
                foreach ($files as $file) {
                    if (strpos($file, '.') === 0) {
                        continue;
                    }

                    if (is_dir($from . DIRECTORY_SEPARATOR . $file)) {
                        $this->recursiveCopy(
                            $from . DIRECTORY_SEPARATOR . $file,
                            $to . DIRECTORY_SEPARATOR . $file
                        );

                    } else {
                        copy(
                            $from . DIRECTORY_SEPARATOR . $file,
                            $to . DIRECTORY_SEPARATOR . $file
                        );
                    }
                }
            }
            return true;

        } elseif (is_file($from)) {
            return copy($from, $to);

        } else {
            return false;
        }
    }
}