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<?php |
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|
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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 <[email protected]> |
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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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|
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namespace Symfony\Component\Process; |
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|
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/** |
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* Generic executable finder. |
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* |
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* @author Fabien Potencier <[email protected]> |
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* @author Johannes M. Schmitt <[email protected]> |
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*/ |
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class ExecutableFinder |
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{ |
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private const CMD_BUILTINS = [ |
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'assoc', 'break', 'call', 'cd', 'chdir', 'cls', 'color', 'copy', 'date', |
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'del', 'dir', 'echo', 'endlocal', 'erase', 'exit', 'for', 'ftype', 'goto', |
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'help', 'if', 'label', 'md', 'mkdir', 'mklink', 'move', 'path', 'pause', |
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'popd', 'prompt', 'pushd', 'rd', 'rem', 'ren', 'rename', 'rmdir', 'set', |
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'setlocal', 'shift', 'start', 'time', 'title', 'type', 'ver', 'vol', |
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]; |
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|
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private $suffixes = []; |
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|
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/** |
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* Replaces default suffixes of executable. |
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*/ |
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public function setSuffixes(array $suffixes) |
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{ |
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$this->suffixes = $suffixes; |
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} |
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|
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/** |
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* Adds new possible suffix to check for executable. |
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*/ |
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public function addSuffix(string $suffix) |
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{ |
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$this->suffixes[] = $suffix; |
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} |
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|
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/** |
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* Finds an executable by name. |
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* |
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* @param string $name The executable name (without the extension) |
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* @param string|null $default The default to return if no executable is found |
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* @param array $extraDirs Additional dirs to check into |
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* |
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* @return string|null |
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*/ |
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public function find(string $name, ?string $default = null, array $extraDirs = []) |
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{ |
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// windows built-in commands that are present in cmd.exe should not be resolved using PATH as they do not exist as exes |
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if ('\\' === \DIRECTORY_SEPARATOR && \in_array(strtolower($name), self::CMD_BUILTINS, true)) { |
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return $name; |
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} |
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|
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$dirs = array_merge( |
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explode(\PATH_SEPARATOR, getenv('PATH') ?: getenv('Path')), |
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$extraDirs |
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); |
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|
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$suffixes = []; |
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if ('\\' === \DIRECTORY_SEPARATOR) { |
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$pathExt = getenv('PATHEXT'); |
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$suffixes = $this->suffixes; |
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$suffixes = array_merge($suffixes, $pathExt ? explode(\PATH_SEPARATOR, $pathExt) : ['.exe', '.bat', '.cmd', '.com']); |
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} |
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$suffixes = '' !== pathinfo($name, PATHINFO_EXTENSION) ? array_merge([''], $suffixes) : array_merge($suffixes, ['']); |
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foreach ($suffixes as $suffix) { |
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foreach ($dirs as $dir) { |
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if ('' === $dir) { |
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$dir = '.'; |
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} |
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if (@is_file($file = $dir.\DIRECTORY_SEPARATOR.$name.$suffix) && ('\\' === \DIRECTORY_SEPARATOR || @is_executable($file))) { |
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return $file; |
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} |
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|
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if (!@is_dir($dir) && basename($dir) === $name.$suffix && @is_executable($dir)) { |
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return $dir; |
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} |
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} |
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} |
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|
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if ('\\' === \DIRECTORY_SEPARATOR || !\function_exists('exec') || \strlen($name) !== strcspn($name, '/'.\DIRECTORY_SEPARATOR)) { |
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return $default; |
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} |
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|
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$execResult = exec('command -v -- '.escapeshellarg($name)); |
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|
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if (($executablePath = substr($execResult, 0, strpos($execResult, \PHP_EOL) ?: null)) && @is_executable($executablePath)) { |
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return $executablePath; |
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} |
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|
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return $default; |
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} |
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} |
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|
