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<?php |
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namespace phpbu\App\Cli; |
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use phpbu\App\Exception; |
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use phpbu\App\Util\Cli; |
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/** |
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* Cli Process Runner |
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* |
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* @package phpbu |
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* @subpackage Backup |
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* @author Sebastian Feldmann <[email protected]> |
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* @copyright Sebastian Feldmann <[email protected]> |
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* @license https://opensource.org/licenses/MIT The MIT License (MIT) |
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* @link http://phpbu.de/ |
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* @since Class available since Release 2.1.0 |
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*/ |
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class Process |
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{ |
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/** |
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* List of system commands to execute. |
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* |
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* @var \phpbu\App\Cli\Cmd[] |
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*/ |
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private $commands = []; |
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/** |
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* Redirect the output |
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* |
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* @var string |
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*/ |
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private $redirectOutput; |
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/** |
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* Output pipeline |
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* |
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* @var \phpbu\App\Cli\Cmd[] |
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*/ |
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private $pipeline = []; |
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/** |
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* Redirect the stdOut. |
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* |
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* @param string $path |
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*/ |
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public function redirectOutputTo($path) |
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{ |
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$this->redirectOutput = $path; |
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} |
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/** |
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* Should the output be redirected. |
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* |
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* @return boolean |
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*/ |
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public function isOutputRedirected() |
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{ |
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return !empty($this->redirectOutput); |
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} |
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/** |
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* Redirect getter. |
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* |
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* @return string |
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*/ |
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public function getRedirectPath() |
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{ |
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return $this->redirectOutput; |
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} |
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/** |
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* Pipe the command into given command. |
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* |
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* @param \phpbu\App\Cli\Cmd $cmd |
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* @throws \phpbu\App\Exception |
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*/ |
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public function pipeOutputTo(Cmd $cmd) |
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{ |
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if (!Cli::canPipe()) { |
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throw new Exception('Can\'t pipe output'); |
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} |
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$this->pipeline[] = $cmd; |
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} |
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/** |
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* Is there a command pipeline. |
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* |
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* @return bool |
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*/ |
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public function isPiped() |
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{ |
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return !empty($this->pipeline); |
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} |
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/** |
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* Return command pipeline. |
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* |
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* @return string |
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*/ |
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public function getPipeline() |
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{ |
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return $this->isPiped() ? ' | ' . implode(' | ', $this->pipeline) : ''; |
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} |
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1 |
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/** |
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* Adds a cli command to the command list. |
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* |
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* @param \phpbu\App\Cli\Cmd $cmd |
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*/ |
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public function addCommand(Cmd $cmd) |
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{ |
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$this->commands[] = $cmd; |
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} |
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/** |
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* Generates the system command. |
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* |
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* @return string |
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* @throws \phpbu\App\Exception |
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*/ |
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public function getCommandLine() |
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{ |
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$amount = count($this->commands); |
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if ($amount < 1) { |
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throw new Exception('no command to execute'); |
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} |
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$cmd = ($amount > 1 ? '(' . implode(' && ', $this->commands) . ')' : $this->commands[0]) |
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. $this->getPipeline() |
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. (!empty($this->redirectOutput) ? ' > ' . $this->redirectOutput : ''); |
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return $cmd; |
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} |
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/** |
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* Executes the commands. |
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* |
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* @return \phpbu\App\Cli\Result |
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* @throws \phpbu\App\Exception |
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*/ |
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public function run() |
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{ |
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$cmd = $this->getCommandLine(); |
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$old = error_reporting(0); |
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$descriptorSpec = [ |
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['pipe', 'r'], |
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['pipe', 'w'], |
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['pipe', 'w'], |
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]; |
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$process = proc_open($cmd, $descriptorSpec, $pipes); |
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if (!is_resource($process)) { |
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throw new Exception('can\'t execute \'proc_open\''); |
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} |
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$stdOut = stream_get_contents($pipes[1]); |
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fclose($pipes[1]); |
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$stdErr = stream_get_contents($pipes[2]); |
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fclose($pipes[2]); |
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$code = proc_close($process); |
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error_reporting($old); |
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return new Result($cmd, $code, $stdOut, $stdErr); |
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} |
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} |
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sebastianfeldmann /
phpbu
