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gyro/core/behaviour/commands/generics/execute.shell.cmd.php

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<?php
/**
 * Run a shell command
 *  
 * @author Gerd Riesselmann
 * @ingroup Behaviour
 */
class ExecuteShellCommand extends CommandBase {
        /*
         * Constructor takes command to execute, which can be either a string  or an aray
         * 
         * @param string|array $shellcmd
         */
        public function __construct($shellcmd) {
                parent::__construct(null, $shellcmd);
        }
        
        
        /**
         * Executes commands
         * 
         * @return Status
         */
        public function execute() {
                $ret = new Status();
                $cmds = Arr::force($this->get_params(), false);
                foreach ($cmds as $cmd) {
                        $ret->merge($this->invoke($cmd));
                        if ($ret->is_error()) {
                                break;
                        }
                }
                return $ret;
        } 

        /**
         * Run shell with given command
         * 
         * @param string $call
         * @return Status
         */
        protected function invoke($call) {
                $ret = new Status();
                $output = array();
                $result = 0;
                $call = escapeshellcmd($call);
                exec($call, $output, $result);
                if ($result > 0) {
                        if (count($output) > 0) {
                                foreach($output as $err_line) {
                                        $ret->append($err_line);
                                }
                        }
                        else {
                                $ret->append(tr('Error while invoking %call: %e', 'core', array('%call' => $call, '%e' => $result)));
                        }
                }
                return $ret;
        }
        
}

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