/**
* @param $hash
*
* @return $this
*/
public function setHash($hash)
{
$hash = trim($hash);
$output = $this->exec('show ' . $hash . ' --quiet --format=medium');
$output = Git::parseGitLogOutput($output);
if (!$output) {
throw new \RuntimeException("{$hash} doesn't seem to be a valid revision.");
}
$this->hash = $output[0];
$this->author = $output[1];
$this->date = $output[2];
$this->message = $output[3];
return $this;
}
