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PhabricatorRepositoryCommitMessageParserWorker.php
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Thu, Aug 8, 04:19

PhabricatorRepositoryCommitMessageParserWorker.php
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<?php
/*
* Copyright 2012 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
abstract class PhabricatorRepositoryCommitMessageParserWorker
extends PhabricatorRepositoryCommitParserWorker {
abstract protected function getCommitHashes(
PhabricatorRepository $repository,
PhabricatorRepositoryCommit $commit);
final protected function updateCommitData($author, $message) {
$commit = $this->commit;
$data = id(new PhabricatorRepositoryCommitData())->loadOneWhere(
'commitID = %d',
$commit->getID());
if (!$data) {
$data = new PhabricatorRepositoryCommitData();
}
$data->setCommitID($commit->getID());
$data->setAuthorName($author);
$data->setCommitMessage($message);
$repository = $this->repository;
$detail_parser = $repository->getDetail(
'detail-parser',
'PhabricatorRepositoryDefaultCommitMessageDetailParser');
if ($detail_parser) {
PhutilSymbolLoader::loadClass($detail_parser);
$parser_obj = newv($detail_parser, array($commit, $data));
$parser_obj->parseCommitDetails();
}
$data->save();
$conn_w = id(new DifferentialRevision())->establishConnection('w');
// NOTE: The `differential_commit` table has a unique ID on `commitPHID`,
// preventing more than one revision from being associated with a commit.
// Generally this is good and desirable, but with the advent of hash
// tracking we may end up in a situation where we match several different
// revisions. We just kind of ignore this and pick one, we might want to
// revisit this and do something differently. (If we match several revisions
// someone probably did something very silly, though.)
$revision_id = $data->getCommitDetail('differential.revisionID');
if (!$revision_id) {
$hashes = $this->getCommitHashes(
$this->repository,
$this->commit);
if ($hashes) {
$query = new DifferentialRevisionQuery();
$query->withCommitHashes($hashes);
$revisions = $query->execute();
if (!empty($revisions)) {
$revision = $this->identifyBestRevision($revisions);
$revision_id = $revision->getID();
}
}
}
if ($revision_id) {
$revision = id(new DifferentialRevision())->load($revision_id);
if ($revision) {
queryfx(
$conn_w,
'INSERT IGNORE INTO %T (revisionID, commitPHID) VALUES (%d, %s)',
DifferentialRevision::TABLE_COMMIT,
$revision->getID(),
$commit->getPHID());
if ($revision->getStatus() != DifferentialRevisionStatus::COMMITTED) {
$message = null;
$committer = $data->getCommitDetail('authorPHID');
if (!$committer) {
$committer = $revision->getAuthorPHID();
$message = 'Change committed by '.$data->getAuthorName().'.';
}
$editor = new DifferentialCommentEditor(
$revision,
$committer,
DifferentialAction::ACTION_COMMIT);
$editor->setMessage($message)->save();
}
}
}
}
/**
* When querying for revisions by hash, more than one revision may be found.
* This function identifies the "best" revision from such a set. Typically,
* there is only one revision found. Otherwise, we try to pick an accepted
* revision first, followed by an open revision, and otherwise we go with a
* committed or abandoned revision as a last resort.
*/
private function identifyBestRevision(array $revisions) {
// get the simplest, common case out of the way
if (count($revisions) == 1) {
return reset($revisions);
}
$first_choice = array();
$second_choice = array();
$third_choice = array();
foreach ($revisions as $revision) {
switch ($revision->getStatus()) {
// "Accepted" revisions -- ostensibly what we're looking for!
case DifferentialRevisionStatus::ACCEPTED:
$first_choice[] = $revision;
break;
// "Open" revisions
case DifferentialRevisionStatus::NEEDS_REVIEW:
case DifferentialRevisionStatus::NEEDS_REVISION:
$second_choice[] = $revision;
break;
// default is a wtf? here
default:
case DifferentialRevisionStatus::ABANDONED:
case DifferentialRevisionStatus::COMMITTED:
$third_choice[] = $revision;
break;
}
}
// go down the ladder like a bro at last call
if (!empty($first_choice)) {
return $this->identifyMostRecentRevision($first_choice);
}
if (!empty($second_choice)) {
return $this->identifyMostRecentRevision($second_choice);
}
if (!empty($third_choice)) {
return $this->identifyMostRecentRevision($third_choice);
}
}
/**
* Given a set of revisions, returns the revision with the latest
* updated time. This is ostensibly the most recent revision.
*/
private function identifyMostRecentRevision(array $revisions) {
$revisions = msort($revisions, 'getDateModified');
return end($revisions);
}
}

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