composer

#!/usr/bin/env php
<?php
/**
 * Composer Wrapper
 *
 * You may use this file as you would the standard composer command line tool.
 * This script is made to wrap the composer script. It will download composer
 * and place the executable phar file in the `bin/` folder of the project if
 * it is not already available. When the executable phar is available this
 * script will forward all commands to the composer executable.
 * To change/update composer version, see the url below.
 * 
 * @copyright 2014 Maxwell Vandervelde
 * @license MIT <http://opensource.org/licenses/MIT>
 * @author Maxwell Vandervelde <Max@MaxVandervelde.com>
 */

$composerExecutable = __DIR__ . '/composer.phar';
$composerUrl = 'https://getcomposer.org/download/1.0.0-alpha9/composer.phar';

if (false === file_exists($composerExecutable)) {
    $fileName = basename($composerExecutable);
    echo "> $fileName not found, attempting to download...\r\n";
    $fh = fopen($composerExecutable, 'w');

    if (!$fh) {
        throw new \RuntimeException('Could not create file: ' . $composerExecutable);
    }
    if (false === fwrite($fh, file_get_contents($composerUrl))) {
        throw new \RuntimeException('Download failed: error');
    }

    chmod($composerExecutable, 0777);
}

require 'phar://' . $composerExecutable . '/bin/composer';