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<?php |
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namespace Ballen\Executioner; |
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/** |
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* Executioner Process Execution Library |
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* Executioner is a PHP library for executing system processes |
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* and applications with the ability to pass extra arguments and read |
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* CLI output results. |
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* |
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* @author Bobby Allen <[email protected]> |
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* @package Ballen\Executioner |
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* @license http://opensource.org/licenses/MIT |
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* @link https://github.com/allebb/executioner |
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*/ |
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use Ballen\Collection\Collection; |
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class Executioner |
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{ |
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/** |
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* The full system path to the application/process you want to exectute. |
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* |
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* @var string |
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*/ |
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private $applicationPath; |
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/** |
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* Stores application arguments to be parsed with the application. |
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* |
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* @var Collection |
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*/ |
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private $applicationArguments; |
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/** |
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* Stores the CLI response. |
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* |
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* @var Collection |
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*/ |
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private $executionResponse; |
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/** |
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* Stores the CLI execution errors. |
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* |
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* @var Collection |
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*/ |
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private $executionErrors; |
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/** |
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* Execute the command using sudo? |
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* |
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* @var boolean |
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*/ |
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private $sudo = false; |
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/** |
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* Redirect stderr to stdout? |
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* |
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* @var boolean |
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*/ |
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private $stdError = false; |
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/** |
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* Executioner constructor. |
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*/ |
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public function __construct() |
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{ |
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$this->applicationArguments = new Collection(); |
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$this->executionResponse = new Collection(); |
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$this->executionErrors = new Collection(); |
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} |
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/** |
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* Optional way to create new instance |
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* |
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* @param string $application The command to run. |
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* @return Executioner |
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*/ |
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public static function make($application) |
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{ |
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return (new Executioner())->setApplication($application); |
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} |
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/** |
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* Adds an argument to be added to the execution string. |
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* |
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* @param string $argument |
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* @return Executioner |
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*/ |
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public function addArgument($argument) |
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{ |
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$this->applicationArguments->push($argument); |
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return $this; |
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} |
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/** |
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* Sets the application and path of which to be executed. |
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* |
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* @param string $application The full system path to the application to execute. |
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* @return Executioner |
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*/ |
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public function setApplication($application) |
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{ |
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$this->applicationPath = $application; |
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return $this; |
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} |
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/** |
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* Retrieves the compiled command. |
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* |
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* @return string |
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*/ |
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public function getCommand() |
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{ |
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return $this->compileCommand(); |
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} |
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/** |
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* Compiles the command that will be executed |
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* |
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* @return string |
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*/ |
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private function compileCommand() |
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{ |
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$command = ''; |
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if ($this->sudo) { |
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$command = 'sudo '; |
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} |
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$command .= escapeshellcmd($this->applicationPath) . $this->generateArguments(); |
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if ($this->stdError) { |
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$command .= ' 2>&1'; |
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} |
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return $command; |
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} |
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/** |
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* Generates a list of arguments to be appended onto the executed path. |
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* |
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* @return string The generated list of arguments. |
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*/ |
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protected function generateArguments() |
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{ |
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$arguments = ''; |
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if (!$this->applicationArguments->isEmpty()) { |
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$arguments = ' ' . $this->applicationArguments->implode(); |
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} |
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return $arguments; |
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} |
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/** |
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* Ensure that the process is called with 'sudo' (*NIX systems only) |
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* |
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* @param bool $enabled Enable (or disable) sudo. |
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* @return Executioner |
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*/ |
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public function sudo($enabled = true) |
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{ |
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$this->sudo = $enabled; |
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return $this; |
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} |
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/** |
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* Enable stderr redirection to stdout. |
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* |
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* @param boolean $enabled Enable (or disable) redirection to std. |
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* @return Executioner |
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*/ |
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public function stderr($enabled = true) |
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{ |
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$this->stdError = $enabled; |
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return $this; |
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} |
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/** |
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* Executes the process. |
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* |
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* @return array |
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* @throws Exceptions\ExecutionException |
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*/ |
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private function executeProcess() |
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{ |
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$command = $this->compileCommand(); |
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exec($command, $result, $status); |
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if ($status > 0) { |
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throw new Exceptions\ExecutionException( |
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'Unknown error occurred when attempting to execute: ' . $command . PHP_EOL |
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); |
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} |
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return $result; |
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} |
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/** |
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* Executes the application with configured arguments. |
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* |
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* @return Executioner |
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* @throws Exceptions\ExecutionException |
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*/ |
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public function execute() |
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{ |
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$this->executionResponse->reset()->push($this->executeProcess()); |
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return $this; |
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} |
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/** |
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* Checks if the application/process is executable. |
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* |
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* @return boolean |
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*/ |
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public function isExecutable() |
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{ |
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return is_executable($this->applicationPath); |
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} |
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/** |
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* Returns an array of class error messages. |
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* |
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* @return Collection Collection of error messages. |
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*/ |
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public function getErrors() |
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{ |
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return $this->executionErrors; |
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} |
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/** |
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* Returns the result (STDOUT) as an array. |
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* |
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* @return array Result text (STDOUT). |
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*/ |
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public function resultAsArray() |
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{ |
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return $this->executionResponse->all()->toArray(); |
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} |
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/** |
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* Returns the result (STDOUT) as a JSON string. |
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* |
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* @return string Result text (STDOUT). |
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*/ |
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public function resultAsJSON() |
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{ |
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return $this->executionResponse->all()->toJson(); |
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} |
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/** |
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* Returns the result (STDOUT) as seralized data. |
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* |
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* @return string Result text (STDOUT). |
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*/ |
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public function resultAsSerialized() |
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{ |
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return serialize($this->executionResponse->all()->toArray()); |
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} |
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/** |
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* Returns the result (stdout) as a raw text string. |
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* |
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* @return string Result text (STDOUT). |
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*/ |
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public function resultAsText() |
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{ |
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$buffer = ''; |
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foreach ($this->executionResponse->all()->toArray() as $stdout) { |
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$buffer .= $stdout . PHP_EOL; |
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} |
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return $buffer; |
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} |
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} |
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