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DifferentialChangesetViewController.php
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Fri, May 3, 07:25

DifferentialChangesetViewController.php
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<?php
final class DifferentialChangesetViewController extends DifferentialController {
public function shouldAllowPublic() {
return true;
}
public function handleRequest(AphrontRequest $request) {
$viewer = $this->getViewer();
$rendering_reference = $request->getStr('ref');
$parts = explode('/', $rendering_reference);
if (count($parts) == 2) {
list($id, $vs) = $parts;
} else {
$id = $parts[0];
$vs = 0;
}
$id = (int)$id;
$vs = (int)$vs;
$load_ids = array($id);
if ($vs && ($vs != -1)) {
$load_ids[] = $vs;
}
$changesets = id(new DifferentialChangesetQuery())
->setViewer($viewer)
->withIDs($load_ids)
->needHunks(true)
->execute();
$changesets = mpull($changesets, null, 'getID');
$changeset = idx($changesets, $id);
if (!$changeset) {
return new Aphront404Response();
}
$vs_changeset = null;
if ($vs && ($vs != -1)) {
$vs_changeset = idx($changesets, $vs);
if (!$vs_changeset) {
return new Aphront404Response();
}
}
$view = $request->getStr('view');
if ($view) {
$phid = idx($changeset->getMetadata(), "$view:binary-phid");
if ($phid) {
return id(new AphrontRedirectResponse())->setURI("/file/info/$phid/");
}
switch ($view) {
case 'new':
return $this->buildRawFileResponse($changeset, $is_new = true);
case 'old':
if ($vs_changeset) {
return $this->buildRawFileResponse($vs_changeset, $is_new = true);
}
return $this->buildRawFileResponse($changeset, $is_new = false);
default:
return new Aphront400Response();
}
}
$old = array();
$new = array();
if (!$vs) {
$right = $changeset;
$left = null;
$right_source = $right->getID();
$right_new = true;
$left_source = $right->getID();
$left_new = false;
$render_cache_key = $right->getID();
$old[] = $changeset;
$new[] = $changeset;
} else if ($vs == -1) {
$right = null;
$left = $changeset;
$right_source = $left->getID();
$right_new = false;
$left_source = $left->getID();
$left_new = true;
$render_cache_key = null;
$old[] = $changeset;
$new[] = $changeset;
} else {
$right = $changeset;
$left = $vs_changeset;
$right_source = $right->getID();
$right_new = true;
$left_source = $left->getID();
$left_new = true;
$render_cache_key = null;
$new[] = $left;
$new[] = $right;
}
if ($left) {
$left_data = $left->makeNewFile();
if ($right) {
$right_data = $right->makeNewFile();
} else {
$right_data = $left->makeOldFile();
}
$engine = new PhabricatorDifferenceEngine();
$synthetic = $engine->generateChangesetFromFileContent(
$left_data,
$right_data);
$choice = clone nonempty($left, $right);
$choice->attachHunks($synthetic->getHunks());
$changeset = $choice;
}
if ($left_new || $right_new) {
$diff_map = array();
if ($left) {
$diff_map[] = $left->getDiff();
}
if ($right) {
$diff_map[] = $right->getDiff();
}
$diff_map = mpull($diff_map, null, 'getPHID');
$buildables = id(new HarbormasterBuildableQuery())
->setViewer($viewer)
->withBuildablePHIDs(array_keys($diff_map))
->withManualBuildables(false)
->needBuilds(true)
->needTargets(true)
->execute();
$buildables = mpull($buildables, null, 'getBuildablePHID');
foreach ($diff_map as $diff_phid => $changeset_diff) {
$changeset_diff->attachBuildable(idx($buildables, $diff_phid));
}
}
$coverage = null;
if ($right_new) {
$coverage = $this->loadCoverage($right);
}
$spec = $request->getStr('range');
list($range_s, $range_e, $mask) =
DifferentialChangesetParser::parseRangeSpecification($spec);
$parser = id(new DifferentialChangesetParser())
->setCoverage($coverage)
->setChangeset($changeset)
->setRenderingReference($rendering_reference)
->setRenderCacheKey($render_cache_key)
->setRightSideCommentMapping($right_source, $right_new)
->setLeftSideCommentMapping($left_source, $left_new);
$parser->readParametersFromRequest($request);
if ($left && $right) {
$parser->setOriginals($left, $right);
}
$diff = $changeset->getDiff();
$revision_id = $diff->getRevisionID();
$can_mark = false;
$object_owner_phid = null;
$revision = null;
if ($revision_id) {
$revision = id(new DifferentialRevisionQuery())
->setViewer($viewer)
->withIDs(array($revision_id))
->executeOne();
if ($revision) {
$can_mark = ($revision->getAuthorPHID() == $viewer->getPHID());
$object_owner_phid = $revision->getAuthorPHID();
}
}
// Load both left-side and right-side inline comments.
if ($revision) {
$query = id(new DifferentialInlineCommentQuery())
->setViewer($viewer)
->needHidden(true)
->withRevisionPHIDs(array($revision->getPHID()));
$inlines = $query->execute();
$inlines = $query->adjustInlinesForChangesets(
$inlines,
$old,
$new,
$revision);
} else {
$inlines = array();
}
if ($left_new) {
$inlines = array_merge(
$inlines,
$this->buildLintInlineComments($left));
}
if ($right_new) {
$inlines = array_merge(
$inlines,
$this->buildLintInlineComments($right));
}
$phids = array();
foreach ($inlines as $inline) {
$parser->parseInlineComment($inline);
if ($inline->getAuthorPHID()) {
$phids[$inline->getAuthorPHID()] = true;
}
}
$phids = array_keys($phids);
$handles = $this->loadViewerHandles($phids);
$parser->setHandles($handles);
$engine = new PhabricatorMarkupEngine();
$engine->setViewer($viewer);
foreach ($inlines as $inline) {
$engine->addObject(
$inline,
PhabricatorInlineCommentInterface::MARKUP_FIELD_BODY);
}
$engine->process();
$parser
->setUser($viewer)
->setMarkupEngine($engine)
->setShowEditAndReplyLinks(true)
->setCanMarkDone($can_mark)
->setObjectOwnerPHID($object_owner_phid)
->setRange($range_s, $range_e)
->setMask($mask);
if ($request->isAjax()) {
// NOTE: We must render the changeset before we render coverage
// information, since it builds some caches.
$rendered_changeset = $parser->renderChangeset();
$mcov = $parser->renderModifiedCoverage();
$coverage_data = array(
'differential-mcoverage-'.md5($changeset->getFilename()) => $mcov,
);
return id(new PhabricatorChangesetResponse())
->setRenderedChangeset($rendered_changeset)
->setCoverage($coverage_data)
->setUndoTemplates($parser->getRenderer()->renderUndoTemplates());
}
$detail = id(new DifferentialChangesetListView())
->setUser($this->getViewer())
->setChangesets(array($changeset))
->setVisibleChangesets(array($changeset))
->setRenderingReferences(array($rendering_reference))
->setRenderURI('/differential/changeset/')
->setDiff($diff)
->setTitle(pht('Standalone View'))
->setBackground(PHUIObjectBoxView::BLUE_PROPERTY)
->setIsStandalone(true)
->setParser($parser);
if ($revision_id) {
$detail->setInlineCommentControllerURI(
'/differential/comment/inline/edit/'.$revision_id.'/');
}
$crumbs = $this->buildApplicationCrumbs();
if ($revision_id) {
$crumbs->addTextCrumb('D'.$revision_id, '/D'.$revision_id);
}
$diff_id = $diff->getID();
if ($diff_id) {
$crumbs->addTextCrumb(
pht('Diff %d', $diff_id),
$this->getApplicationURI('diff/'.$diff_id));
}
$crumbs->addTextCrumb($changeset->getDisplayFilename());
$crumbs->setBorder(true);
$header = id(new PHUIHeaderView())
->setHeader(pht('Changeset View'))
->setHeaderIcon('fa-gear');
$view = id(new PHUITwoColumnView())
->setHeader($header)
->setFooter($detail);
return $this->newPage()
->setTitle(pht('Changeset View'))
->setCrumbs($crumbs)
->appendChild($view);
}
private function buildRawFileResponse(
DifferentialChangeset $changeset,
$is_new) {
$viewer = $this->getViewer();
if ($is_new) {
$key = 'raw:new:phid';
} else {
$key = 'raw:old:phid';
}
$metadata = $changeset->getMetadata();
$file = null;
$phid = idx($metadata, $key);
if ($phid) {
$file = id(new PhabricatorFileQuery())
->setViewer($viewer)
->withPHIDs(array($phid))
->execute();
if ($file) {
$file = head($file);
}
}
if (!$file) {
// This is just building a cache of the changeset content in the file
// tool, and is safe to run on a read pathway.
$unguard = AphrontWriteGuard::beginScopedUnguardedWrites();
if ($is_new) {
$data = $changeset->makeNewFile();
} else {
$data = $changeset->makeOldFile();
}
$diff = $changeset->getDiff();
$file = PhabricatorFile::newFromFileData(
$data,
array(
'name' => $changeset->getFilename(),
'mime-type' => 'text/plain',
'ttl.relative' => phutil_units('24 hours in seconds'),
'viewPolicy' => PhabricatorPolicies::POLICY_NOONE,
));
$file->attachToObject($diff->getPHID());
$metadata[$key] = $file->getPHID();
$changeset->setMetadata($metadata);
$changeset->save();
unset($unguard);
}
return $file->getRedirectResponse();
}
private function buildLintInlineComments($changeset) {
$diff = $changeset->getDiff();
$target_phids = $diff->getBuildTargetPHIDs();
if (!$target_phids) {
return array();
}
$messages = id(new HarbormasterBuildLintMessage())->loadAllWhere(
'buildTargetPHID IN (%Ls) AND path = %s',
$target_phids,
$changeset->getFilename());
if (!$messages) {
return array();
}
$change_type = $changeset->getChangeType();
if (DifferentialChangeType::isDeleteChangeType($change_type)) {
// If this is a lint message on a deleted file, show it on the left
// side of the UI because there are no source code lines on the right
// side of the UI so inlines don't have anywhere to render. See PHI416.
$is_new = 0;
} else {
$is_new = 1;
}
$template = id(new DifferentialInlineComment())
->setChangesetID($changeset->getID())
->setIsNewFile($is_new)
->setLineLength(0);
$inlines = array();
foreach ($messages as $message) {
$description = $message->getProperty('description');
$inlines[] = id(clone $template)
->setSyntheticAuthor(pht('Lint: %s', $message->getName()))
->setLineNumber($message->getLine())
->setContent($description);
}
return $inlines;
}
private function loadCoverage(DifferentialChangeset $changeset) {
$viewer = $this->getViewer();
$target_phids = $changeset->getDiff()->getBuildTargetPHIDs();
if (!$target_phids) {
return null;
}
$unit = id(new HarbormasterBuildUnitMessageQuery())
->setViewer($viewer)
->withBuildTargetPHIDs($target_phids)
->execute();
if (!$unit) {
return null;
}
$coverage = array();
foreach ($unit as $message) {
$test_coverage = $message->getProperty('coverage');
if ($test_coverage === null) {
continue;
}
$coverage_data = idx($test_coverage, $changeset->getFileName());
if (!strlen($coverage_data)) {
continue;
}
$coverage[] = $coverage_data;
}
if (!$coverage) {
return null;
}
return ArcanistUnitTestResult::mergeCoverage($coverage);
}
}

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