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97 lines (79 loc) · 2.44 KB
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<?php declare(strict_types = 1);
namespace PHPStan\Process;
use PHPStan\Process\Runnable\Runnable;
use PHPStan\ShouldNotHappenException;
use React\ChildProcess\Process;
use React\EventLoop\LoopInterface;
use React\Promise\CancellablePromiseInterface;
use React\Promise\Deferred;
use React\Promise\ExtendedPromiseInterface;
use function fclose;
use function rewind;
use function stream_get_contents;
use function tmpfile;
class ProcessPromise implements Runnable
{
private Deferred $deferred;
private ?Process $process = null;
private bool $canceled = false;
public function __construct(private LoopInterface $loop, private string $name, private string $command)
{
$this->deferred = new Deferred();
}
public function getName(): string
{
return $this->name;
}
/**
* @return ExtendedPromiseInterface&CancellablePromiseInterface
*/
public function run(): CancellablePromiseInterface
{
$tmpStdOutResource = tmpfile();
if ($tmpStdOutResource === false) {
throw new ShouldNotHappenException('Failed creating temp file for stdout.');
}
$tmpStdErrResource = tmpfile();
if ($tmpStdErrResource === false) {
throw new ShouldNotHappenException('Failed creating temp file for stderr.');
}
$this->process = new Process($this->command, null, null, [
1 => $tmpStdOutResource,
2 => $tmpStdErrResource,
]);
$this->process->start($this->loop);
$this->process->on('exit', function ($exitCode) use ($tmpStdOutResource, $tmpStdErrResource): void {
if ($this->canceled) {
fclose($tmpStdOutResource);
fclose($tmpStdErrResource);
return;
}
rewind($tmpStdOutResource);
$stdOut = stream_get_contents($tmpStdOutResource);
fclose($tmpStdOutResource);
rewind($tmpStdErrResource);
$stdErr = stream_get_contents($tmpStdErrResource);
fclose($tmpStdErrResource);
if ($exitCode === null) {
$this->deferred->reject(new ProcessCrashedException($stdOut . $stdErr));
return;
}
if ($exitCode === 0) {
$this->deferred->resolve($stdOut);
return;
}
$this->deferred->reject(new ProcessCrashedException($stdOut . $stdErr));
});
/** @var ExtendedPromiseInterface&CancellablePromiseInterface */
return $this->deferred->promise();
}
public function cancel(): void
{
if ($this->process === null) {
throw new ShouldNotHappenException('Cancelling process before running');
}
$this->canceled = true;
$this->process->terminate();
$this->deferred->reject(new ProcessCanceledException());
}
}