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<?php |
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/* this file is part of pipelines */ |
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namespace Ktomk\Pipelines\Cli; |
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use RuntimeException; |
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/** |
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* Run command non-interactively and capture standard output and error |
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*/ |
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class Proc |
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{ |
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/** |
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* @var string |
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*/ |
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private $command; |
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/** |
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* @var null|int |
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*/ |
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private $status; |
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/** |
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* @var null|string[] |
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*/ |
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private $buffers; |
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/** |
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* Proc constructor. |
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* |
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* @param string $command |
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*/ |
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public function __construct($command) |
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{ |
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$this->command = $command; |
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} |
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/** |
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* @throws RuntimeException |
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* |
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* @return int |
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*/ |
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public function run() |
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{ |
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$command = $this->command; |
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# do nothing placeholder |
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if (':' === $command) { |
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$this->buffers['stdout'] = $this->buffers['stderr'] = ''; |
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return $this->status = 0; |
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} |
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$descriptors = array( |
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1 |
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0 => array('file', '/dev/null', 'r'), // non-interactive running |
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1 => array('pipe', 'w'), |
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2 => array('pipe', 'w'), |
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); |
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$process = proc_open($command, $descriptors, $pipes); |
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if (!is_resource($process)) { |
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throw new RuntimeException(sprintf('Failed to open: %s', $command)); // @codeCoverageIgnore |
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} |
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$this->buffers['stdout'] = stream_get_contents($pipes[1]); |
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$this->buffers['stderr'] = stream_get_contents($pipes[2]); |
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# consume pipes |
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foreach ($descriptors as $number => $descriptor) { |
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if ('pipe' === $descriptor[0]) { |
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$result = fclose($pipes[$number]); |
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unset($result); # intentionally ignore errors (fail safe) |
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} |
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} |
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1 |
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$status = proc_close($process); |
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return $this->status = $status; |
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} |
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/** |
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* @return null|int exit status, null if not yet executed |
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*/ |
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public function getStatus() |
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{ |
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return $this->status; |
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} |
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/** |
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* @return string |
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*/ |
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public function getStandardOutput() |
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{ |
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return $this->buffers ? $this->buffers['stdout'] : ''; |
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} |
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/** |
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* @return string |
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*/ |
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public function getStandardError() |
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{ |
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return $this->buffers ? $this->buffers['stderr'] : ''; |
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} |
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/** |
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* @param null|int $status |
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* |
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* @return void |
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*/ |
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public function setStatus($status) |
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{ |
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$this->status = $status; |
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1 |
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} |
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} |
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ktomk /
pipelines
