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Merge pull request #19 from nextcloud/bump_symfony_process
Bump symfony/process
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| <?php | ||
|
|
||
| /* | ||
| * This file is part of the Symfony package. | ||
| * | ||
| * (c) Fabien Potencier <fabien@symfony.com> | ||
| * | ||
| * For the full copyright and license information, please view the LICENSE | ||
| * file that was distributed with this source code. | ||
| */ | ||
|
|
||
| namespace Symfony\Component\Process; | ||
|
|
||
| use Symfony\Component\Process\Exception\RuntimeException; | ||
|
|
||
| /** | ||
| * Provides a way to continuously write to the input of a Process until the InputStream is closed. | ||
| * | ||
| * @author Nicolas Grekas <p@tchwork.com> | ||
| */ | ||
| class InputStream implements \IteratorAggregate | ||
| { | ||
| private $onEmpty = null; | ||
| private $input = array(); | ||
| private $open = true; | ||
|
|
||
| /** | ||
| * Sets a callback that is called when the write buffer becomes empty. | ||
| */ | ||
| public function onEmpty(callable $onEmpty = null) | ||
| { | ||
| $this->onEmpty = $onEmpty; | ||
| } | ||
|
|
||
| /** | ||
| * Appends an input to the write buffer. | ||
| * | ||
| * @param resource|scalar|\Traversable|null The input to append as stream resource, scalar or \Traversable | ||
| */ | ||
| public function write($input) | ||
| { | ||
| if (null === $input) { | ||
| return; | ||
| } | ||
| if ($this->isClosed()) { | ||
| throw new RuntimeException(sprintf('%s is closed', static::class)); | ||
| } | ||
| $this->input[] = ProcessUtils::validateInput(__METHOD__, $input); | ||
| } | ||
|
|
||
| /** | ||
| * Closes the write buffer. | ||
| */ | ||
| public function close() | ||
| { | ||
| $this->open = false; | ||
| } | ||
|
|
||
| /** | ||
| * Tells whether the write buffer is closed or not. | ||
| */ | ||
| public function isClosed() | ||
| { | ||
| return !$this->open; | ||
| } | ||
|
|
||
| public function getIterator() | ||
| { | ||
| $this->open = true; | ||
|
|
||
| while ($this->open || $this->input) { | ||
| if (!$this->input) { | ||
| yield ''; | ||
| continue; | ||
| } | ||
| $current = array_shift($this->input); | ||
|
|
||
| if ($current instanceof \Iterator) { | ||
| foreach ($current as $cur) { | ||
| yield $cur; | ||
| } | ||
| } else { | ||
| yield $current; | ||
| } | ||
| if (!$this->input && $this->open && null !== $onEmpty = $this->onEmpty) { | ||
| $this->write($onEmpty($this)); | ||
| } | ||
| } | ||
| } | ||
| } |
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