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@@ -33,6 +33,7 @@ class ProcessExecutor
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public function execute($command, &$output = null)
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{
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$captureOutput = count(func_get_args()) > 1;
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+ $this->errorOutput = null;
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$process = new Process($command, null, null, null, static::getTimeout());
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$process->run(function($type, $buffer) use ($captureOutput) {
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if ($captureOutput) {
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