imc

#!/usr/bin/env php
<?php 
declare(ticks = 1); 
if (!is_readable('app/Mage.php')) {
    echo "Could not find app/Mage.php\n";
    exit(1);
}
require 'app/Mage.php';
if (!Mage::isInstalled()) {
    echo "Application is not installed yet, please complete install wizard first.";
    exit(1);
}
$baseDir = getcwd();
//not sure if this is necessary, ported over from cron.php script
$_SERVER['SCRIPT_NAME'] = $baseDir.'/index.php';
$_SERVER['SCRIPT_FILENAME'] = $baseDir.'/index.php';
try {
    ini_set('display_errors', 1);
    ini_set('log_errors', 1);
    if (!empty($_SERVER['HOME'])) {
        ini_set('error_log', $_SERVER['HOME'] . '/imc.log');
    }
    error_reporting(E_ALL);
    $storeCode = '';
    if (isset($argv[1])) {
        $storeCode = $argv[1];
    }
    Mage::app($storeCode, 'store')->setUseSessionInUrl(false);
    IMC::getInstance()->read();
} catch (Exception $e) {
    Mage::printException($e);
}

class IMC {
    protected static $instance = null;
    protected $historyFile = null;
    protected $histSize    = 20;
    protected $history     = array();
    protected $readline    = true;
    protected function __construct()
    {
        if (!function_exists('readline')) {
        	echo "NOTICE: no readline support detected, command line functionaltiy will be limited\n"; 
            $this->readline = false;
        }
        if (!empty($_SERVER['HOME'])) {
            $this->historyFile = $_SERVER['HOME'].'/.imc_history';
            if (!file_exists($this->historyFile)) {
                file_put_contents($this->historyFile, '');
            }
            if ($this->readline) {
                readline_read_history($this->historyFile);
            }
            $this->history = explode(file_get_contents($this->historyFile), "\n");
            if (isset($_ENV['HISTSIZE']) && $_ENV['HISTSIZE'] > 0) {
                $this->histSize = $_ENV['HISTSIZE'];
            }
        }
        if ($this->readline) {
            readline_completion_function(array($this, 'completeCallback'));
        }
        register_shutdown_function(array($this, 'fatalErrorShutdown'));
        # // Catch Ctrl+C, kill and SIGTERM
        pcntl_signal(SIGTERM, array($this, 'sigintShutdown'));  
        pcntl_signal(SIGINT, array($this, 'sigintShutdown')); 
    }
    public function fatalErrorShutdown()
    {
        $this->quit();
    }
    public function sigintShutdown($signal)
    {
        if ($signal === SIGINT || $signal === SIGTERM) {
            $this->quit();
        }
    }
    public function __destruct()
    {
        if (!empty($this->historyFile) && is_writable($this->historyFile) && $this->readline) {
            readline_write_history($this->historyFile);
        }
    }
    public static function getInstance()
    {
        if (self::$instance == null) {
            self::$instance = new IMC();
        }
        return self::$instance;
    }
    public function read()
    {
        while (true) {
            if ($this->readline) {
                $line = readline('Mage> ');
            } else {
            	echo 'Mage> ';
                $line = stream_get_line(STDIN, 1024, PHP_EOL);
            }
            if ($line == 'exit') {
                $this->quit();
            }
            if (!empty($line)) {
                $this->addToHistory($line);
                eval($line);
                echo "\n";
            }
        }
    }
    protected function addToHistory($line)
    {
        if ($histsize = count($this->history) > $this->histSize) {
            $this->history = array_slice($this->history, $histsize - $this->histSize);
        }
        if ($this->readline) {
            readline_add_history($line);
        }
    }
    public function quit($code=0)
    {
        $this->__destruct();//just to be safe, if eval causes fatal error we have to call explicitly
        exit($code);
    }
    protected function completeCallback($line)
    {
        if (!empty($line)) {
            $line = preg_quote($line);
            $funcs = get_defined_functions();
            $constants = get_defined_constants();//use these?
            $avail = array_merge(get_declared_classes(),$funcs['user'], $funcs['internal'], array());
	    /*$classNameRegex = '[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*';
            if (substr($line, -4) == '\:\:') {
		$class = substr($line,0, -4);
		if (in_array($class, $avail)) {
                    $methods = get_class_methods($class);
                    foreach ($methods as $key => $method) {
                        $methods[$key] = $class.'::'.$method;
                    }
                    return $methods;
		}
	    }*/
            $matches =  preg_grep("/^$line/", $avail);
            if (!empty($matches)) {//will segfault if we return empty array after 3 times...
                return $matches;
            }
        }
    }
}