Lithium Cron Wrapper

cron.php

<?php
/**
 * This script is meant to be executed via crontab.
 * It should help you easily set li3 commands as cron jobs.
 *
 * You should put this in the root of your application.
 * However, you don't need to, but you would then need to
 * pass a --path= option with the path to your app.
 * This is because the li3 console command must be called
 * from a specific location.
 *
 * Usage Examples:
 *
 * This would specify the development environment for some command.
 * > php /path/to/cron.php --env=development mycommand method
 *
 * This would show the li3 help command output.
 * Note the verbose flag can be useful for testing before setting cron.
 * > php /path/to/cron.php --verbose help
 *
*/

// While this script shouldn't be able to be accessed from a web browser
// because it should sit outside the webroot...This isn't a bad idea.
if (php_sapi_name() != 'cli') die('Access denied.');

// Who knows what the li3 console command was doing, this can help prevent
// issues with hitting a memory limit.
gc_collect_cycles();

// This will parse the args.
// --arg=val will be array('arg' => 'val')
// arg will be array(0 => 'arg')
// --arg will be array('arg' => true)
function parseArgs($argv) {
	array_shift($argv);
	$out = array();
	foreach ($argv as $arg) {
		if (substr($arg, 0, 2) == '--') {
			$eqPos = strpos($arg, '=');
			if ($eqPos === false) {
				$key = substr($arg, 2);
				$out[$key] = isset($out[$key]) ? $out[$key] : true;
			} else {
				$key = substr($arg, 2, $eqPos - 2);
				$out[$key] = substr($arg, $eqPos + 1);
			}
		} else if (substr($arg, 0, 1) == '-') {
			if (substr($arg, 2, 1) == '=') {
				$key = substr($arg, 1, 1);
				$out[$key] = substr($arg, 3);
			} else {
				$chars = str_split(substr($arg, 1));
				foreach ($chars as $char) {
					$key = $char;
					$out[$key] = isset($out[$key]) ? $out[$key] : true;
				}
			}
		} else {
			$out[] = $arg;
		}
	}
	return $out;
}

// Get the passed args.
$options = parseArgs($argv);

// Specify --env= in the cron, otherwise it will be set to production by default.
// Then unset the value so it doesn't get in the way of building the li3 command.
$env = (isset($options['env'])) ? $options['env'] : 'production';
if (isset($options['env'])) {
	unset($options['env']);
}

// This script is meant to be in the root of the application.
// If it is not, then --path= must be passed with the full path to the app.
$li3_app_path = (isset($options['path'])) ? $options['path'] : __DIR__;
if (isset($options['path'])) {
	unset($options['path']);
}

// This can be helpful if you want to test the call before putting it in crontab.
// Just call the same command you'd set in cron with --verbose passed and you'll see output.
$verbose = (isset($options['verbose'])) ? true : false;
if (isset($options['verbose'])) {
	unset($options['verbose']);
}

// The command is simply the remainder of the arguments passed.
// Technically, the --env and/or --path can be at the beginning or end.
$li3_command = join(' ', $options);

// Call the command(s) with a subshell. We need ensure li3 is called from the proper directory.
$command = "(cd {$li3_app_path} && exec libraries/lithium/console/li3 --env={$env} $li3_command)";

// Do something with the output.
if ($verbose) {
	echo `$command`;
	echo PHP_EOL;
} else {
	$nullResult = `$command > /dev/null &`;
}

exit();

?>

@see https://github.com/pwfisher/CommandLine.php