98 lines
1.9 KiB
PHP
98 lines
1.9 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Finder\Shell;
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/**
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* @author Jean-François Simon <contact@jfsimon.fr>
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*/
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class Shell
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{
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const TYPE_UNIX = 1;
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const TYPE_DARWIN = 2;
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const TYPE_CYGWIN = 3;
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const TYPE_WINDOWS = 4;
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const TYPE_BSD = 5;
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/**
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* @var string|null
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*/
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private $type;
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/**
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* Returns guessed OS type.
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*
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* @return int
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*/
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public function getType()
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{
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if (null === $this->type) {
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$this->type = $this->guessType();
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}
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return $this->type;
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}
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/**
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* Tests if a command is available.
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*
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* @param string $command
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*
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* @return bool
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*/
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public function testCommand($command)
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{
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if (!function_exists('exec')) {
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return false;
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}
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// todo: find a better way (command could not be available)
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$testCommand = 'which ';
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if (self::TYPE_WINDOWS === $this->type) {
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$testCommand = 'where ';
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}
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$command = escapeshellcmd($command);
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exec($testCommand.$command, $output, $code);
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return 0 === $code && count($output) > 0;
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}
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/**
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* Guesses OS type.
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*
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* @return int
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*/
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private function guessType()
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{
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$os = strtolower(PHP_OS);
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if (false !== strpos($os, 'cygwin')) {
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return self::TYPE_CYGWIN;
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}
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if (false !== strpos($os, 'darwin')) {
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return self::TYPE_DARWIN;
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}
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if (false !== strpos($os, 'bsd')) {
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return self::TYPE_BSD;
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}
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if (0 === strpos($os, 'win')) {
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return self::TYPE_WINDOWS;
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}
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return self::TYPE_UNIX;
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}
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}
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