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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,177 @@ | ||
| <?php | ||
|
|
||
| /* | ||
| * This file is a temporary fork of part of the Symfony package to work around a regression. | ||
| * @see https://github.com/symfony/symfony/pull/57317 | ||
| * | ||
| * (c) Fabien Potencier <fabien@symfony.com> | ||
| * | ||
| * For the full copyright and license information, see | ||
| * https://github.com/symfony/symfony/blob/6.4/LICENSE | ||
| */ | ||
|
|
||
| namespace PhpTuf\ComposerStager\Internal\SymfonyProcess\Value; | ||
|
|
||
| use Symfony\Component\Process\Exception\InvalidArgumentException; | ||
|
|
||
| /** | ||
| * @author Romain Neutron <imprec@gmail.com> | ||
| * | ||
| * @internal | ||
| */ | ||
| abstract class AbstractPipes implements PipesInterface | ||
| { | ||
| public array $pipes = []; | ||
|
|
||
| private string $inputBuffer = ''; | ||
| /** @var resource|string|\Iterator */ | ||
| private $input; | ||
| private bool $blocked = true; | ||
| private ?string $lastError = null; | ||
|
|
||
| /** | ||
| * @param resource|string|\Iterator $input | ||
| */ | ||
| public function __construct($input) | ||
| { | ||
| if (\is_resource($input) || $input instanceof \Iterator) { | ||
| $this->input = $input; | ||
| } else { | ||
| $this->inputBuffer = (string) $input; | ||
| } | ||
| } | ||
|
|
||
| public function close(): void | ||
| { | ||
| foreach ($this->pipes as $pipe) { | ||
| if (\is_resource($pipe)) { | ||
| fclose($pipe); | ||
| } | ||
| } | ||
| $this->pipes = []; | ||
| } | ||
|
|
||
| /** | ||
| * Returns true if a system call has been interrupted. | ||
| */ | ||
| protected function hasSystemCallBeenInterrupted(): bool | ||
| { | ||
| $lastError = $this->lastError; | ||
| $this->lastError = null; | ||
|
|
||
| // stream_select returns false when the `select` system call is interrupted by an incoming signal | ||
| return null !== $lastError && false !== stripos($lastError, 'interrupted system call'); | ||
| } | ||
|
|
||
| /** | ||
| * Unblocks streams. | ||
| */ | ||
| protected function unblock(): void | ||
| { | ||
| if (!$this->blocked) { | ||
| return; | ||
| } | ||
|
|
||
| foreach ($this->pipes as $pipe) { | ||
| stream_set_blocking($pipe, 0); | ||
| } | ||
| if (\is_resource($this->input)) { | ||
| stream_set_blocking($this->input, 0); | ||
| } | ||
|
|
||
| $this->blocked = false; | ||
| } | ||
|
|
||
| /** | ||
| * Writes input to stdin. | ||
| * | ||
| * @throws InvalidArgumentException When an input iterator yields a non supported value | ||
| */ | ||
| protected function write(): ?array | ||
| { | ||
| if (!isset($this->pipes[0])) { | ||
| return null; | ||
| } | ||
| $input = $this->input; | ||
|
|
||
| if ($input instanceof \Iterator) { | ||
| if (!$input->valid()) { | ||
| $input = null; | ||
| } elseif (\is_resource($input = $input->current())) { | ||
| stream_set_blocking($input, 0); | ||
| } elseif (!isset($this->inputBuffer[0])) { | ||
| if (!\is_string($input)) { | ||
| if (!\is_scalar($input)) { | ||
| throw new InvalidArgumentException(sprintf('"%s" yielded a value of type "%s", but only scalars and stream resources are supported.', get_debug_type($this->input), get_debug_type($input))); | ||
| } | ||
| $input = (string) $input; | ||
| } | ||
| $this->inputBuffer = $input; | ||
| $this->input->next(); | ||
| $input = null; | ||
| } else { | ||
| $input = null; | ||
| } | ||
| } | ||
|
|
||
| $r = $e = []; | ||
| $w = [$this->pipes[0]]; | ||
|
|
||
| // let's have a look if something changed in streams | ||
| if (false === @stream_select($r, $w, $e, 0, 0)) { | ||
| return null; | ||
| } | ||
|
|
||
| foreach ($w as $stdin) { | ||
| if (isset($this->inputBuffer[0])) { | ||
| $written = fwrite($stdin, $this->inputBuffer); | ||
| $this->inputBuffer = substr($this->inputBuffer, $written); | ||
| if (isset($this->inputBuffer[0])) { | ||
| return [$this->pipes[0]]; | ||
| } | ||
| } | ||
|
|
||
| if ($input) { | ||
| while (true) { | ||
| $data = fread($input, self::CHUNK_SIZE); | ||
| if (!isset($data[0])) { | ||
| break; | ||
| } | ||
| $written = fwrite($stdin, $data); | ||
| $data = substr($data, $written); | ||
| if (isset($data[0])) { | ||
| $this->inputBuffer = $data; | ||
|
|
||
| return [$this->pipes[0]]; | ||
| } | ||
| } | ||
| if (feof($input)) { | ||
| if ($this->input instanceof \Iterator) { | ||
| $this->input->next(); | ||
| } else { | ||
| $this->input = null; | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // no input to read on resource, buffer is empty | ||
| if (!isset($this->inputBuffer[0]) && !($this->input instanceof \Iterator ? $this->input->valid() : $this->input)) { | ||
| $this->input = null; | ||
| fclose($this->pipes[0]); | ||
| unset($this->pipes[0]); | ||
| } elseif (!$w) { | ||
| return [$this->pipes[0]]; | ||
| } | ||
|
|
||
| return null; | ||
| } | ||
|
|
||
| /** | ||
| * @internal | ||
| */ | ||
| public function handleError(int $type, string $msg): void | ||
| { | ||
| $this->lastError = $msg; | ||
| } | ||
| } |
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