/**
* Gets a file diff
*
* @param string $fromHash source hash, can also be a diff-tree info line
* @param string $toHash target hash, required if $fromHash is a hash
* @return GitPHP_FileDiff file diff object
*/
public function GetFileDiff($fromHash, $toHash = '')
{
if (preg_match('/^[0-9A-Fa-f]{4,39}$/', $fromHash) && !$this->compat) {
$fullHash = $this->project->ExpandHash($fromHash);
if ($fullHash == $fromHash) {
throw new GitPHP_InvalidHashException($fromHash);
}
$fromHash = $fullHash;
}
if (!empty($toHash) && preg_match('/^[0-9A-Fa-f]{4,39}$/', $toHash) && !$this->compat) {
$fullHash = $this->project->ExpandHash($toHash);
if ($fullHash == $toHash) {
throw new GitPHP_InvalidHashException($toHash);
}
$toHash = $fullHash;
}
$fileDiff = new GitPHP_FileDiff($this->project, $fromHash, $toHash);
$fileDiff->SetCache($this->cache);
return $fileDiff;
}
/**
* ReadHistory
*
* Reads the file history
*
* @access private
*/
private function ReadHistory()
{
$this->historyRead = true;
$exe = new GitPHP_GitExe($this->GetProject());
$args = array();
if (isset($this->commit)) {
$args[] = $this->commit->GetHash();
} else {
$args[] = 'HEAD';
}
$args[] = '|';
$args[] = $exe->GetBinary();
$args[] = '--git-dir=' . $this->GetProject()->GetPath();
$args[] = GIT_DIFF_TREE;
$args[] = '-r';
$args[] = '--stdin';
$args[] = '--';
$args[] = $this->GetPath();
$historylines = explode("\n", $exe->Execute(GIT_REV_LIST, $args));
$commit = null;
foreach ($historylines as $line) {
if (preg_match('/^([0-9a-fA-F]{40})/', $line, $regs)) {
$commit = $this->GetProject()->GetCommit($regs[1]);
} else {
if ($commit) {
try {
$history = new GitPHP_FileDiff($this->GetProject(), $line);
$history->SetCommit($commit);
$this->history[] = $history;
} catch (Exception $e) {
}
unset($commit);
}
}
}
}
