public function loadChangesetsForCommit($identifier) { $byte_limit = HeraldCommitAdapter::getEnormousByteLimit(); $time_limit = HeraldCommitAdapter::getEnormousTimeLimit(); $vcs = $this->getRepository()->getVersionControlSystem(); switch ($vcs) { case PhabricatorRepositoryType::REPOSITORY_TYPE_GIT: case PhabricatorRepositoryType::REPOSITORY_TYPE_MERCURIAL: // For git and hg, we can use normal commands. $drequest = DiffusionRequest::newFromDictionary(array('repository' => $this->getRepository(), 'user' => $this->getViewer(), 'commit' => $identifier)); $raw_diff = DiffusionRawDiffQuery::newFromDiffusionRequest($drequest)->setTimeout($time_limit)->setByteLimit($byte_limit)->setLinesOfContext(0)->loadRawDiff(); break; case PhabricatorRepositoryType::REPOSITORY_TYPE_SVN: // TODO: This diff has 3 lines of context, which produces slightly // incorrect "added file content" and "removed file content" results. // This may also choke on binaries, but "svnlook diff" does not support // the "--diff-cmd" flag. // For subversion, we need to use `svnlook`. $future = new ExecFuture('svnlook diff -t %s %s', $this->subversionTransaction, $this->subversionRepository); $future->setTimeout($time_limit); $future->setStdoutSizeLimit($byte_limit); $future->setStderrSizeLimit($byte_limit); list($raw_diff) = $future->resolvex(); break; default: throw new Exception(pht("Unknown VCS '%s!'", $vcs)); } if (strlen($raw_diff) >= $byte_limit) { throw new Exception(pht('The raw text of this change is enormous (larger than %d ' . 'bytes). Herald can not process it.', $byte_limit)); } if (!strlen($raw_diff)) { // If the commit is actually empty, just return no changesets. return array(); } $parser = new ArcanistDiffParser(); $changes = $parser->parseDiff($raw_diff); $diff = DifferentialDiff::newEphemeralFromRawChanges($changes); return $diff->getChangesets(); }