public function _unserialize($data)
{
$lines = explode("\n", $data);
unset($data);
$meta = array();
while (($line = array_shift($lines)) != '') {
$parts = explode(' ', $line, 2);
if (!isset($meta[$parts[0]])) {
$meta[$parts[0]] = array($parts[1]);
} else {
$meta[$parts[0]][] = $parts[1];
}
}
if (isset($meta['object'][0])) {
$this->object = sha1_bin($meta['object'][0]);
$this->objtype = Git::getTypeID($meta['type'][0]);
}
if (isset($meta['tag'][0])) {
$this->tag = $meta['tag'][0];
}
if (isset($meta['tagger'][0])) {
$this->tagger = new GitCommitStamp();
$this->tagger->unserialize($meta['tagger'][0]);
}
$this->summary = array_shift($lines);
$this->detail = implode("\n", $lines);
}
/**
* @brief Fetch an object in its binary representation by name.
*
* Throws an exception if the object cannot be found.
*
* @param $objectName (string) name of the object (binary SHA1)
* @returns (array) an array consisting of the object type (int) and the
* binary representation of the object (string)
*/
protected function getRawObject($objectName)
{
static $cache = array();
/* FIXME allow limiting the cache to a certain size */
if (isset($cache[$objectName])) {
return $cache[$objectName];
}
$sha1 = Git::sha1Hex($objectName);
$path = sprintf('%s/objects/%s/%s', $this->dir, substr($sha1, 0, 2), substr($sha1, 2));
if (file_exists($path)) {
list($hdr, $objectData) = explode("", gzuncompress(file_get_contents($path)), 2);
sscanf($hdr, "%s %d", $type, $objectSize);
$objectType = Git::getTypeID($type);
$result = array($objectType, $objectData);
} elseif ($packedObject = $this->findPackedObject($objectName)) {
list($packName, $objectOffset) = $packedObject;
$pack = fopen(sprintf('%s/objects/pack/pack-%s.pack', $this->dir, sha1Hex($packName)), 'rb');
flock($pack, LOCK_SH);
/* check magic and version */
$magic = fread($pack, 4);
$version = Binary::fuint32($pack);
if ($magic != 'PACK' || $version != 2) {
throw new Exception('unsupported pack format');
}
$result = $this->unpackObject($pack, $objectOffset);
fclose($pack);
} else {
throw new Exception(sprintf('object not found: %s', sha1Hex($objectName)));
}
$cache[$objectName] = $result;
return $result;
}
/**
* @brief Fetch an object in its binary representation by name.
*
* Throws an exception if the object cannot be found.
*
* @param $object_name (string) name of the object (binary SHA1)
* @returns (array) an array consisting of the object type (int) and the
* binary representation of the object (string)
*/
public function getRawObject($object_name)
{
static $cache = array();
/* FIXME allow limiting the cache to a certain size */
if (isset($cache[$object_name])) {
return $cache[$object_name];
}
$sha1 = sha1_hex($object_name);
$path = sprintf('%s/objects/%s/%s', $this->dir, substr($sha1, 0, 2), substr($sha1, 2));
if (file_exists($path)) {
list($hdr, $object_data) = explode("", gzuncompress(file_get_contents($path)), 2);
sscanf($hdr, "%s %d", $type, $object_size);
$object_type = Git::getTypeID($type);
$r = array($object_type, $object_data);
} else {
if ($x = $this->findPackedObject($object_name)) {
list($pack_name, $object_offset) = $x;
$pack = fopen(sprintf('%s/objects/pack/pack-%s.pack', $this->dir, sha1_hex($pack_name)), 'rb');
flock($pack, LOCK_SH);
/* check magic and version */
$magic = fread($pack, 4);
$version = Binary::fuint32($pack);
if ($magic != 'PACK' || $version != 2) {
throw new Exception('unsupported pack format');
}
$r = $this->unpackObject($pack, $object_offset);
fclose($pack);
}
}
// Try alternate repositories.
foreach ($this->alternates as $alternate_dir) {
try {
$alternate_git = new Git($alternate_dir);
$r = $alternate_git->getRawObject($object_name);
break;
} catch (Exception $e) {
}
}
if (!isset($r)) {
throw new Exception(sprintf('object not found: %s', sha1_hex($object_name)));
}
$cache[$object_name] = $r;
return $r;
}
