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PhabricatorRepositoryCommitMessageParserWorker.php
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Mon, Jun 3, 19:13

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,
$committer = null) {
$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);
if ($committer) {
$data->setCommitDetail('committer', $committer);
}
$repository = $this->repository;
$detail_parser = $repository->getDetail(
'detail-parser',
'PhabricatorRepositoryDefaultCommitMessageDetailParser');
if ($detail_parser) {
$parser_obj = newv($detail_parser, array($commit, $data));
$parser_obj->parseCommitDetails();
}
$author_phid = $this->lookupUser(
$commit,
$data->getAuthorName(),
$data->getCommitDetail('authorPHID'));
$data->setCommitDetail('authorPHID', $author_phid);
$committer_phid = $this->lookupUser(
$commit,
$data->getCommitDetail('committer'),
$data->getCommitDetail('committerPHID'));
$data->setCommitDetail('committerPHID', $committer_phid);
if ($author_phid != $commit->getAuthorPHID()) {
$commit->setAuthorPHID($author_phid);
$commit->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());
$commit_is_new = $conn_w->getAffectedRows();
$committer_phid = $data->getCommitDetail('committerPHID');
if ($committer_phid) {
$handle = PhabricatorObjectHandleData::loadOneHandle($committer_phid);
$committer_name = '@'.$handle->getName();
} else {
$committer_name = $data->getCommitDetail('committer');
}
$author_phid = $data->getCommitDetail('authorPHID');
if ($author_phid) {
$handle = PhabricatorObjectHandleData::loadOneHandle($author_phid);
$author_name = '@'.$handle->getName();
} else {
$author_name = $data->getAuthorName();
}
$commit_name = $repository->formatCommitName(
$commit->getCommitIdentifier());
$info = array();
$info[] = "authored by {$author_name}";
if ($committer_name && ($committer_name != $author_name)) {
$info[] = "committed by {$committer_name}";
}
$info = implode(', ', $info);
$message = "Closed by commit {$commit_name} ({$info}).";
$actor_phid = nonempty(
$committer_phid,
$author_phid,
$revision->getAuthorPHID());
$status_closed = ArcanistDifferentialRevisionStatus::CLOSED;
$should_close = $commit_is_new &&
($revision->getStatus() != $status_closed) &&
$repository->shouldAutocloseCommit($commit, $data);
if ($should_close) {
$diff = $this->attachToRevision($revision, $actor_phid);
$revision->setDateCommitted($commit->getEpoch());
$editor = new DifferentialCommentEditor(
$revision,
$actor_phid,
DifferentialAction::ACTION_CLOSE);
$editor->setIsDaemonWorkflow(true);
$vs_diff = $this->loadChangedByCommit($diff);
if ($vs_diff) {
$data->setCommitDetail('vsDiff', $vs_diff->getID());
$changed_by_commit = PhabricatorEnv::getProductionURI(
'/D'.$revision->getID().
'?vs='.$vs_diff->getID().
'&id='.$diff->getID().
'#differential-review-toc');
$editor->setChangedByCommit($changed_by_commit);
}
$editor->setMessage($message)->save();
}
}
}
$data->save();
}
private function attachToRevision(
DifferentialRevision $revision,
$actor_phid) {
$drequest = DiffusionRequest::newFromDictionary(array(
'repository' => $this->repository,
'commit' => $this->commit->getCommitIdentifier(),
));
$raw_diff = DiffusionRawDiffQuery::newFromDiffusionRequest($drequest)
->loadRawDiff();
$changes = id(new ArcanistDiffParser())->parseDiff($raw_diff);
$diff = DifferentialDiff::newFromRawChanges($changes)
->setRevisionID($revision->getID())
->setAuthorPHID($actor_phid)
->setCreationMethod('commit')
->setSourceControlSystem($this->repository->getVersionControlSystem())
->setLintStatus(DifferentialLintStatus::LINT_SKIP)
->setUnitStatus(DifferentialUnitStatus::UNIT_SKIP)
->setDateCreated($this->commit->getEpoch())
->setDescription(
'Commit r'.
$this->repository->getCallsign().
$this->commit->getCommitIdentifier());
// TODO: This is not correct in SVN where one repository can have multiple
// Arcanist projects.
$arcanist_project = id(new PhabricatorRepositoryArcanistProject())
->loadOneWhere('repositoryID = %d LIMIT 1', $this->repository->getID());
if ($arcanist_project) {
$diff->setArcanistProjectPHID($arcanist_project->getPHID());
}
$parents = DiffusionCommitParentsQuery::newFromDiffusionRequest($drequest)
->loadParents();
if ($parents) {
$diff->setSourceControlBaseRevision(head_key($parents));
}
// TODO: Attach binary files.
return $diff->save();
}
private function loadChangedByCommit(DifferentialDiff $diff) {
$repository = $this->repository;
$vs_changesets = array();
$vs_diff = id(new DifferentialDiff())->loadOneWhere(
'revisionID = %d AND creationMethod != %s ORDER BY id DESC LIMIT 1',
$diff->getRevisionID(),
'commit');
foreach ($vs_diff->loadChangesets() as $changeset) {
$path = $changeset->getAbsoluteRepositoryPath($repository, $vs_diff);
$path = ltrim($path, '/');
$vs_changesets[$path] = $changeset;
}
$changesets = array();
foreach ($diff->getChangesets() as $changeset) {
$path = $changeset->getAbsoluteRepositoryPath($repository, $diff);
$path = ltrim($path, '/');
$changesets[$path] = $changeset;
}
if (array_fill_keys(array_keys($changesets), true) !=
array_fill_keys(array_keys($vs_changesets), true)) {
return $vs_diff;
}
$hunks = id(new DifferentialHunk())->loadAllWhere(
'changesetID IN (%Ld)',
mpull($vs_changesets, 'getID'));
$hunks = mgroup($hunks, 'getChangesetID');
foreach ($vs_changesets as $changeset) {
$changeset->attachHunks(idx($hunks, $changeset->getID(), array()));
}
$file_phids = array();
foreach ($vs_changesets as $changeset) {
$metadata = $changeset->getMetadata();
$file_phid = idx($metadata, 'new:binary-phid');
if ($file_phid) {
$file_phids[$file_phid] = $file_phid;
}
}
$files = array();
if ($file_phids) {
$files = id(new PhabricatorFile())->loadAllWhere(
'phid IN (%Ls)',
$file_phids);
$files = mpull($files, null, 'getPHID');
}
foreach ($changesets as $path => $changeset) {
$vs_changeset = $vs_changesets[$path];
$file_phid = idx($vs_changeset->getMetadata(), 'new:binary-phid');
if ($file_phid) {
if (!isset($files[$file_phid])) {
return $vs_diff;
}
$drequest = DiffusionRequest::newFromDictionary(array(
'repository' => $this->repository,
'commit' => $this->commit->getCommitIdentifier(),
'path' => $path,
));
$corpus = DiffusionFileContentQuery::newFromDiffusionRequest($drequest)
->loadFileContent()
->getCorpus();
if ($files[$file_phid]->loadFileData() != $corpus) {
return $vs_diff;
}
} else {
$context = implode("\n", $changeset->makeChangesWithContext());
$vs_context = implode("\n", $vs_changeset->makeChangesWithContext());
// We couldn't just compare $context and $vs_context because following
// diffs will be considered different:
//
// -(empty line)
// -echo 'test';
// (empty line)
//
// (empty line)
// -echo "test";
// -(empty line)
$hunk = id(new DifferentialHunk())->setChanges($context);
$vs_hunk = id(new DifferentialHunk())->setChanges($vs_context);
if ($hunk->makeOldFile() != $vs_hunk->makeOldFile() ||
$hunk->makeNewFile() != $vs_hunk->makeNewFile()) {
return $vs_diff;
}
}
}
return null;
}
/**
* 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
* closed or abandoned revision as a last resort.
*/
private function identifyBestRevision(array $revisions) {
assert_instances_of($revisions, 'DifferentialRevision');
// 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 ArcanistDifferentialRevisionStatus::ACCEPTED:
$first_choice[] = $revision;
break;
// "Open" revisions
case ArcanistDifferentialRevisionStatus::NEEDS_REVIEW:
case ArcanistDifferentialRevisionStatus::NEEDS_REVISION:
$second_choice[] = $revision;
break;
// default is a wtf? here
default:
case ArcanistDifferentialRevisionStatus::ABANDONED:
case ArcanistDifferentialRevisionStatus::CLOSED:
$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 $revisions) {
assert_instances_of($revisions, 'DifferentialRevision');
$revisions = msort($revisions, 'getDateModified');
return end($revisions);
}
/**
* Emit an event so installs can do custom lookup of commit authors who may
* not be naturally resolvable.
*/
private function lookupUser(
PhabricatorRepositoryCommit $commit,
$query,
$guess) {
$type = PhabricatorEventType::TYPE_DIFFUSION_LOOKUPUSER;
$data = array(
'commit' => $commit,
'query' => $query,
'result' => $guess,
);
$event = new PhabricatorEvent($type, $data);
PhutilEventEngine::dispatchEvent($event);
return $event->getValue('result');
}
}

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