/**
* Get any object from the repository.
*
* @param string $name Reference name or (partial) object hash
* @return Object Immutable Object of given name.
* @throws \InvalidArgumentException
* @throws \OutOfBoundsException
*/
public function get($name)
{
$hash = false;
if (ctype_xdigit($name)) {
$hash_len = strlen($name);
if ($hash_len < 4) {
throw new \InvalidArgumentException('Hash must be at least 4 characters long.');
}
if ($hash_len % 2) {
throw new \InvalidArgumentException('Hash must be divisible by two.');
}
$hash = $name;
} elseif (array_key_exists($name, $this->refs)) {
$hash = $this->refs[$name];
} else {
throw new \InvalidArgumentException('Invalid ref: ' . $name);
}
$data = false;
$objectPath = $this->path . '/objects/' . substr($hash, 0, 2) . '/' . substr($hash, 2);
if (strlen($hash) < 40) {
$hits = glob($objectPath . '*');
if (count($hits) > 0) {
$data = gzuncompress(file_get_contents($hits[0]));
}
} elseif (file_exists($objectPath)) {
$data = gzuncompress(file_get_contents($objectPath));
}
if (!$data) {
foreach ($this->packs as &$pack) {
$data = $pack->search($hash);
if ($data) {
break;
}
}
}
if (!$data) {
throw new \OutOfBoundsException($name);
}
$hash = strlen($hash) == 40 ? $hash : sha1($data);
list($prefix, $body) = explode("", $data, 2);
list($type, $size) = explode(' ', $prefix, 2);
switch ($type) {
case 'commit':
return Commit::fromRaw($body, $size, $hash);
case 'tag':
return Tag::fromRaw($body, $size, $hash);
case 'tree':
return Tree::fromRaw($body, $size, $hash);
case 'blob':
return Blob::fromRaw($body, $size, $hash);
default:
throw new InvalidArgumentException($type);
}
}
