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	diff --git a/src/applications/diffusion/controller/DiffusionBrowseController.php b/src/applications/diffusion/controller/DiffusionBrowseController.php
	index ae921cd66..ade61a258 100644
	--- a/src/applications/diffusion/controller/DiffusionBrowseController.php
	+++ b/src/applications/diffusion/controller/DiffusionBrowseController.php
	@@ -1,1869 +1,1894 @@
	<?php

	final class DiffusionBrowseController extends DiffusionController {

	private $lintCommit;
	private $lintMessages;
	private $coverage;

	public function shouldAllowPublic() {
	return true;
	}

	public function handleRequest(AphrontRequest $request) {
	$response = $this->loadDiffusionContext();
	if ($response) {
	return $response;
	}

	$drequest = $this->getDiffusionRequest();

	// Figure out if we're browsing a directory, a file, or a search result
	// list.

	$grep = $request->getStr('grep');
	$find = $request->getStr('find');
	if (strlen($grep) \|\| strlen($find)) {
	return $this->browseSearch();
	}

	$pager = id(new PHUIPagerView())
	->readFromRequest($request);

	$results = DiffusionBrowseResultSet::newFromConduit(
	$this->callConduitWithDiffusionRequest(
	'diffusion.browsequery',
	array(
	'path' => $drequest->getPath(),
	'commit' => $drequest->getStableCommit(),
	'offset' => $pager->getOffset(),
	'limit' => $pager->getPageSize() + 1,
	)));

	$reason = $results->getReasonForEmptyResultSet();
	$is_file = ($reason == DiffusionBrowseResultSet::REASON_IS_FILE);

	if ($is_file) {
	return $this->browseFile($results);
	} else {
	$paths = $results->getPaths();
	$paths = $pager->sliceResults($paths);
	$results->setPaths($paths);

	return $this->browseDirectory($results, $pager);
	}
	}

	private function browseSearch() {
	$drequest = $this->getDiffusionRequest();

	$actions = $this->buildActionView($drequest);
	$properties = $this->buildPropertyView($drequest, $actions);

	$object_box = id(new PHUIObjectBoxView())
	->setHeader($this->buildHeaderView($drequest))
	->addPropertyList($properties);

	$content = array();

	$content[] = $object_box;
	$content[] = $this->renderSearchForm($collapsed = false);
	$content[] = $this->renderSearchResults();

	$crumbs = $this->buildCrumbs(
	array(
	'branch' => true,
	'path' => true,
	'view' => 'browse',
	));

	return $this->newPage()
	->setTitle(
	array(
	nonempty(basename($drequest->getPath()), '/'),
	$drequest->getRepository()->getDisplayName(),
	))
	->setCrumbs($crumbs)
	->appendChild($content);
	}

	private function browseFile() {
	$viewer = $this->getViewer();
	$request = $this->getRequest();
	$drequest = $this->getDiffusionRequest();
	$repository = $drequest->getRepository();

	$before = $request->getStr('before');
	if ($before) {
	return $this->buildBeforeResponse($before);
	}

	$path = $drequest->getPath();

	$preferences = $viewer->loadPreferences();

	$show_blame = $request->getBool(
	'blame',
	$preferences->getPreference(
	PhabricatorUserPreferences::PREFERENCE_DIFFUSION_BLAME,
	false));
	$show_color = $request->getBool(
	'color',
	$preferences->getPreference(
	PhabricatorUserPreferences::PREFERENCE_DIFFUSION_COLOR,
	true));

	$view = $request->getStr('view');
	if ($request->isFormPost() && $view != 'raw' && $viewer->isLoggedIn()) {
	$preferences->setPreference(
	PhabricatorUserPreferences::PREFERENCE_DIFFUSION_BLAME,
	$show_blame);
	$preferences->setPreference(
	PhabricatorUserPreferences::PREFERENCE_DIFFUSION_COLOR,
	$show_color);
	$preferences->save();

	$uri = $request->getRequestURI()
	->alter('blame', null)
	->alter('color', null);

	return id(new AphrontRedirectResponse())->setURI($uri);
	}

	// We need the blame information if blame is on and we're building plain
	// text, or blame is on and this is an Ajax request. If blame is on and
	// this is a colorized request, we don't show blame at first (we ajax it
	// in afterward) so we don't need to query for it.
	$needs_blame = ($show_blame && !$show_color) \|\|
	($show_blame && $request->isAjax());

	$params = array(
	'commit' => $drequest->getCommit(),
	'path' => $drequest->getPath(),
	);

	$byte_limit = null;
	if ($view !== 'raw') {
	$byte_limit = PhabricatorFileStorageEngine::getChunkThreshold();
	$time_limit = 10;

	$params += array(
	'timeout' => $time_limit,
	'byteLimit' => $byte_limit,
	);
	}

	$file_content = DiffusionFileContent::newFromConduit(
	$this->callConduitWithDiffusionRequest(
	'diffusion.filecontentquery',
	$params));
	$data = $file_content->getCorpus();

	if ($view === 'raw') {
	return $this->buildRawResponse($path, $data);
	}

	$this->loadLintMessages();
	$this->coverage = $drequest->loadCoverage();

	if ($byte_limit && (strlen($data) == $byte_limit)) {
	$corpus = $this->buildErrorCorpus(
	pht(
	'This file is larger than %s byte(s), and too large to display '.
	'in the web UI.',
	$byte_limit));
	} else if (ArcanistDiffUtils::isHeuristicBinaryFile($data)) {
	$file = $this->loadFileForData($path, $data);
	$file_uri = $file->getBestURI();

	if ($file->isViewableImage()) {
	$corpus = $this->buildImageCorpus($file_uri);
	} else {
	$corpus = $this->buildBinaryCorpus($file_uri, $data);
	}
	} else {
	// Build the content of the file.
	$corpus = $this->buildCorpus(
	$show_blame,
	$show_color,
	$file_content,
	$needs_blame,
	$drequest,
	$path,
	$data);
	}

	if ($request->isAjax()) {
	return id(new AphrontAjaxResponse())->setContent($corpus);
	}

	require_celerity_resource('diffusion-source-css');

	// Render the page.
	$view = $this->buildActionView($drequest);
	$action_list = $this->enrichActionView(
	$view,
	$drequest,
	$show_blame,
	$show_color);

	$properties = $this->buildPropertyView($drequest, $action_list);
	$object_box = id(new PHUIObjectBoxView())
	->setHeader($this->buildHeaderView($drequest))
	->addPropertyList($properties);

	$content = array();
	$content[] = $object_box;

	$follow = $request->getStr('follow');
	if ($follow) {
	$notice = new PHUIInfoView();
	$notice->setSeverity(PHUIInfoView::SEVERITY_WARNING);
	$notice->setTitle(pht('Unable to Continue'));
	switch ($follow) {
	case 'first':
	$notice->appendChild(
	pht(
	'Unable to continue tracing the history of this file because '.
	'this commit is the first commit in the repository.'));
	break;
	case 'created':
	$notice->appendChild(
	pht(
	'Unable to continue tracing the history of this file because '.
	'this commit created the file.'));
	break;
	}
	$content[] = $notice;
	}

	$renamed = $request->getStr('renamed');
	if ($renamed) {
	$notice = new PHUIInfoView();
	$notice->setSeverity(PHUIInfoView::SEVERITY_NOTICE);
	$notice->setTitle(pht('File Renamed'));
	$notice->appendChild(
	pht(
	'File history passes through a rename from "%s" to "%s".',
	$drequest->getPath(),
	$renamed));
	$content[] = $notice;
	}

	$content[] = $corpus;
	$content[] = $this->buildOpenRevisions();

	$crumbs = $this->buildCrumbs(
	array(
	'branch' => true,
	'path' => true,
	'view' => 'browse',
	));

	$basename = basename($this->getDiffusionRequest()->getPath());

	return $this->newPage()
	->setTitle(
	array(
	$basename,
	$repository->getDisplayName(),
	))
	->setCrumbs($crumbs)
	->appendChild($content);
	}

	public function browseDirectory(
	DiffusionBrowseResultSet $results,
	PHUIPagerView $pager) {

	$request = $this->getRequest();
	$drequest = $this->getDiffusionRequest();
	$repository = $drequest->getRepository();

	$reason = $results->getReasonForEmptyResultSet();

	$content = array();
	$actions = $this->buildActionView($drequest);
	$properties = $this->buildPropertyView($drequest, $actions);

	$object_box = id(new PHUIObjectBoxView())
	->setHeader($this->buildHeaderView($drequest))
	->addPropertyList($properties);

	$content[] = $object_box;
	$content[] = $this->renderSearchForm($collapsed = true);

	if (!$results->isValidResults()) {
	$empty_result = new DiffusionEmptyResultView();
	$empty_result->setDiffusionRequest($drequest);
	$empty_result->setDiffusionBrowseResultSet($results);
	$empty_result->setView($request->getStr('view'));
	$content[] = $empty_result;
	} else {
	$phids = array();
	foreach ($results->getPaths() as $result) {
	$data = $result->getLastCommitData();
	if ($data) {
	if ($data->getCommitDetail('authorPHID')) {
	$phids[$data->getCommitDetail('authorPHID')] = true;
	}
	}
	}

	$phids = array_keys($phids);
	$handles = $this->loadViewerHandles($phids);

	$browse_table = new DiffusionBrowseTableView();
	$browse_table->setDiffusionRequest($drequest);
	$browse_table->setHandles($handles);
	$browse_table->setPaths($results->getPaths());
	$browse_table->setUser($request->getUser());

	$browse_panel = new PHUIObjectBoxView();
	$browse_panel->setHeaderText($drequest->getPath(), '/');
	$browse_panel->setTable($browse_table);

	$content[] = $browse_panel;
	}

	$content[] = $this->buildOpenRevisions();


	$readme_path = $results->getReadmePath();
	if ($readme_path) {
	$readme_content = $this->callConduitWithDiffusionRequest(
	'diffusion.filecontentquery',
	array(
	'path' => $readme_path,
	'commit' => $drequest->getStableCommit(),
	));
	if ($readme_content) {
	$content[] = id(new DiffusionReadmeView())
	->setUser($this->getViewer())
	->setPath($readme_path)
	->setContent($readme_content['corpus']);
	}
	}

	$crumbs = $this->buildCrumbs(
	array(
	'branch' => true,
	'path' => true,
	'view' => 'browse',
	));

	$pager_box = $this->renderTablePagerBox($pager);

	return $this->newPage()
	->setTitle(
	array(
	nonempty(basename($drequest->getPath()), '/'),
	$repository->getDisplayName(),
	))
	->setCrumbs($crumbs)
	->appendChild(
	array(
	$content,
	$pager_box,
	));
	}

	private function renderSearchResults() {
	$request = $this->getRequest();

	$drequest = $this->getDiffusionRequest();
	$repository = $drequest->getRepository();
	$results = array();

	$pager = id(new PHUIPagerView())
	->readFromRequest($request);

	$search_mode = null;
	switch ($repository->getVersionControlSystem()) {
	case PhabricatorRepositoryType::REPOSITORY_TYPE_SVN:
	$results = array();
	break;
	default:
	if (strlen($this->getRequest()->getStr('grep'))) {
	$search_mode = 'grep';
	$query_string = $request->getStr('grep');
	$results = $this->callConduitWithDiffusionRequest(
	'diffusion.searchquery',
	array(
	'grep' => $query_string,
	'commit' => $drequest->getStableCommit(),
	'path' => $drequest->getPath(),
	'limit' => $pager->getPageSize() + 1,
	'offset' => $pager->getOffset(),
	));
	} else { // Filename search.
	$search_mode = 'find';
	$query_string = $request->getStr('find');
	$results = $this->callConduitWithDiffusionRequest(
	'diffusion.querypaths',
	array(
	'pattern' => $query_string,
	'commit' => $drequest->getStableCommit(),
	'path' => $drequest->getPath(),
	'limit' => $pager->getPageSize() + 1,
	'offset' => $pager->getOffset(),
	));
	}
	break;
	}
	$results = $pager->sliceResults($results);

	if ($search_mode == 'grep') {
	$table = $this->renderGrepResults($results, $query_string);
	$header = pht(
	'File content matching "%s" under "%s"',
	$query_string,
	nonempty($drequest->getPath(), '/'));
	} else {
	$table = $this->renderFindResults($results);
	$header = pht(
	'Paths matching "%s" under "%s"',
	$query_string,
	nonempty($drequest->getPath(), '/'));
	}

	$box = id(new PHUIObjectBoxView())
	->setHeaderText($header)
	->setTable($table);

	$pager_box = $this->renderTablePagerBox($pager);

	return array($box, $pager_box);
	}

	private function renderGrepResults(array $results, $pattern) {
	$drequest = $this->getDiffusionRequest();

	require_celerity_resource('phabricator-search-results-css');

	$rows = array();
	foreach ($results as $result) {
	list($path, $line, $string) = $result;

	$href = $drequest->generateURI(array(
	'action' => 'browse',
	'path' => $path,
	'line' => $line,
	));

	$matches = null;
	$count = @preg_match_all(
	'('.$pattern.')u',
	$string,
	$matches,
	PREG_OFFSET_CAPTURE);

	if (!$count) {
	$output = ltrim($string);
	} else {
	$output = array();
	$cursor = 0;
	$length = strlen($string);
	foreach ($matches[0] as $match) {
	$offset = $match[1];
	if ($cursor != $offset) {
	$output[] = array(
	'text' => substr($string, $cursor, $offset),
	'highlight' => false,
	);
	}
	$output[] = array(
	'text' => $match[0],
	'highlight' => true,
	);
	$cursor = $offset + strlen($match[0]);
	}
	if ($cursor != $length) {
	$output[] = array(
	'text' => substr($string, $cursor),
	'highlight' => false,
	);
	}

	if ($output) {
	$output[0]['text'] = ltrim($output[0]['text']);
	}

	foreach ($output as $key => $segment) {
	if ($segment['highlight']) {
	$output[$key] = phutil_tag('strong', array(), $segment['text']);
	} else {
	$output[$key] = $segment['text'];
	}
	}
	}

	$string = phutil_tag(
	'pre',
	array('class' => 'PhabricatorMonospaced phui-source-fragment'),
	$output);

	$path = Filesystem::readablePath($path, $drequest->getPath());

	$rows[] = array(
	phutil_tag('a', array('href' => $href), $path),
	$line,
	$string,
	);
	}

	$table = id(new AphrontTableView($rows))
	->setClassName('remarkup-code')
	->setHeaders(array(pht('Path'), pht('Line'), pht('String')))
	->setColumnClasses(array('', 'n', 'wide'))
	->setNoDataString(
	pht(
	'The pattern you searched for was not found in the content of any '.
	'files.'));

	return $table;
	}

	private function renderFindResults(array $results) {
	$drequest = $this->getDiffusionRequest();

	$rows = array();
	foreach ($results as $result) {
	$href = $drequest->generateURI(array(
	'action' => 'browse',
	'path' => $result,
	));

	$readable = Filesystem::readablePath($result, $drequest->getPath());

	$rows[] = array(
	phutil_tag('a', array('href' => $href), $readable),
	);
	}

	$table = id(new AphrontTableView($rows))
	->setHeaders(array(pht('Path')))
	->setColumnClasses(array('wide'))
	->setNoDataString(
	pht(
	'The pattern you searched for did not match the names of any '.
	'files.'));

	return $table;
	}

	private function loadLintMessages() {
	$drequest = $this->getDiffusionRequest();
	$branch = $drequest->loadBranch();

	if (!$branch \|\| !$branch->getLintCommit()) {
	return;
	}

	$this->lintCommit = $branch->getLintCommit();

	$conn = id(new PhabricatorRepository())->establishConnection('r');

	$where = '';
	if ($drequest->getLint()) {
	$where = qsprintf(
	$conn,
	'AND code = %s',
	$drequest->getLint());
	}

	$this->lintMessages = queryfx_all(
	$conn,
	'SELECT * FROM %T WHERE branchID = %d %Q AND path = %s',
	PhabricatorRepository::TABLE_LINTMESSAGE,
	$branch->getID(),
	$where,
	'/'.$drequest->getPath());
	}

	private function buildCorpus(
	$show_blame,
	$show_color,
	DiffusionFileContent $file_content,
	$needs_blame,
	DiffusionRequest $drequest,
	$path,
	$data) {

	$viewer = $this->getViewer();
	+ $blame_timeout = 15;
	+ $blame_failed = false;

	- if ($needs_blame) {
	- $blame = $this->loadBlame($path, $drequest->getCommit());
	+ $file_corpus = $file_content->getCorpus();
	+ $highlight_limit = DifferentialChangesetParser::HIGHLIGHT_BYTE_LIMIT;
	+ $blame_limit = DifferentialChangesetParser::HIGHLIGHT_BYTE_LIMIT;
	+ $can_highlight = (strlen($file_corpus) <= $highlight_limit);
	+ $can_blame = (strlen($file_corpus) <= $blame_limit);
	+
	+ if ($needs_blame && $can_blame) {
	+ $blame = $this->loadBlame($path, $drequest->getCommit(), $blame_timeout);
	list($blame_list, $blame_commits) = $blame;
	+ if ($blame_list === null) {
	+ $blame_failed = true;
	+ $blame_list = array();
	+ }
	} else {
	$blame_list = array();
	$blame_commits = array();
	}

	- $file_corpus = $file_content->getCorpus();
	- $highlight_limit = DifferentialChangesetParser::HIGHLIGHT_BYTE_LIMIT;
	- $can_highlight = (strlen($file_corpus) <= $highlight_limit);
	-
	if (!$show_color) {
	$corpus = $this->renderPlaintextCorpus(
	$file_corpus,
	$blame_list,
	$blame_commits,
	$show_blame);
	} else {
	if ($can_highlight) {
	require_celerity_resource('syntax-highlighting-css');

	$highlighted = PhabricatorSyntaxHighlighter::highlightWithFilename(
	$path,
	$file_corpus);
	$lines = phutil_split_lines($highlighted);
	} else {
	$lines = phutil_split_lines($file_corpus);
	}

	$rows = $this->buildDisplayRows(
	$lines,
	$blame_list,
	$blame_commits,
	$show_blame,
	$show_color);

	$corpus_table = javelin_tag(
	'table',
	array(
	'class' => 'diffusion-source remarkup-code PhabricatorMonospaced',
	'sigil' => 'phabricator-source',
	),
	$rows);

	if ($this->getRequest()->isAjax()) {
	return $corpus_table;
	}

	$id = celerity_generate_unique_node_id();

	$repo = $drequest->getRepository();
	$symbol_repos = nonempty($repo->getSymbolSources(), array());
	$symbol_repos[] = $repo->getPHID();

	$lang = last(explode('.', $drequest->getPath()));
	$repo_languages = $repo->getSymbolLanguages();
	$repo_languages = nonempty($repo_languages, array());
	$repo_languages = array_fill_keys($repo_languages, true);

	$needs_symbols = true;
	if ($repo_languages && $symbol_repos) {
	$have_symbols = id(new DiffusionSymbolQuery())
	->existsSymbolsInRepository($repo->getPHID());
	if (!$have_symbols) {
	$needs_symbols = false;
	}
	}

	if ($needs_symbols && $repo_languages) {
	$needs_symbols = isset($repo_languages[$lang]);
	}

	if ($needs_symbols) {
	Javelin::initBehavior(
	'repository-crossreference',
	array(
	'container' => $id,
	'lang' => $lang,
	'repositories' => $symbol_repos,
	));
	}

	$corpus = phutil_tag(
	'div',
	array(
	'id' => $id,
	),
	$corpus_table);

	Javelin::initBehavior('load-blame', array('id' => $id));
	}

	$edit = $this->renderEditButton();
	$file = $this->renderFileButton();
	$header = id(new PHUIHeaderView())
	->setHeader(pht('File Contents'))
	->addActionLink($edit)
	->addActionLink($file);

	$corpus = id(new PHUIObjectBoxView())
	->setHeader($header)
	->appendChild($corpus)
	->setCollapsed(true);

	+ $messages = array();
	+
	if (!$can_highlight) {
	- $message = pht(
	+ $messages[] = pht(
	'This file is larger than %s, so syntax highlighting is disabled '.
	'by default.',
	phutil_format_bytes($highlight_limit));
	+ }
	+
	+ if ($show_blame && !$can_blame) {
	+ $messages[] = pht(
	+ 'This file is larger than %s, so blame is disabled.',
	+ phutil_format_bytes($blame_limit));
	+ }
	+
	+ if ($blame_failed) {
	+ $messages[] = pht(
	+ 'Failed to load blame information for this file in %s second(s).',
	+ new PhutilNumber($blame_timeout));
	+ }

	+ if ($messages) {
	$corpus->setInfoView(
	id(new PHUIInfoView())
	->setSeverity(PHUIInfoView::SEVERITY_WARNING)
	- ->setErrors(array($message)));
	+ ->setErrors($messages));
	}

	return $corpus;
	}

	private function enrichActionView(
	PhabricatorActionListView $view,
	DiffusionRequest $drequest,
	$show_blame,
	$show_color) {

	$viewer = $this->getRequest()->getUser();
	$base_uri = $this->getRequest()->getRequestURI();

	$view->addAction(
	id(new PhabricatorActionView())
	->setName(pht('Show Last Change'))
	->setHref(
	$drequest->generateURI(
	array(
	'action' => 'change',
	)))
	->setIcon('fa-backward'));

	if ($show_blame) {
	$blame_text = pht('Disable Blame');
	$blame_icon = 'fa-exclamation-circle lightgreytext';
	$blame_value = 0;
	} else {
	$blame_text = pht('Enable Blame');
	$blame_icon = 'fa-exclamation-circle';
	$blame_value = 1;
	}

	$view->addAction(
	id(new PhabricatorActionView())
	->setName($blame_text)
	->setHref($base_uri->alter('blame', $blame_value))
	->setIcon($blame_icon)
	->setUser($viewer)
	->setRenderAsForm($viewer->isLoggedIn()));

	if ($show_color) {
	$highlight_text = pht('Disable Highlighting');
	$highlight_icon = 'fa-star-o grey';
	$highlight_value = 0;
	} else {
	$highlight_text = pht('Enable Highlighting');
	$highlight_icon = 'fa-star';
	$highlight_value = 1;
	}

	$view->addAction(
	id(new PhabricatorActionView())
	->setName($highlight_text)
	->setHref($base_uri->alter('color', $highlight_value))
	->setIcon($highlight_icon)
	->setUser($viewer)
	->setRenderAsForm($viewer->isLoggedIn()));

	$href = null;
	if ($this->getRequest()->getStr('lint') !== null) {
	$lint_text = pht('Hide %d Lint Message(s)', count($this->lintMessages));
	$href = $base_uri->alter('lint', null);

	} else if ($this->lintCommit === null) {
	$lint_text = pht('Lint not Available');
	} else {
	$lint_text = pht(
	'Show %d Lint Message(s)',
	count($this->lintMessages));
	$href = $this->getDiffusionRequest()->generateURI(array(
	'action' => 'browse',
	'commit' => $this->lintCommit,
	))->alter('lint', '');
	}

	$view->addAction(
	id(new PhabricatorActionView())
	->setName($lint_text)
	->setHref($href)
	->setIcon('fa-exclamation-triangle')
	->setDisabled(!$href));

	return $view;
	}

	private function renderEditButton() {
	$request = $this->getRequest();
	$user = $request->getUser();

	$drequest = $this->getDiffusionRequest();

	$repository = $drequest->getRepository();
	$path = $drequest->getPath();
	$line = nonempty((int)$drequest->getLine(), 1);

	$editor_link = $user->loadEditorLink($path, $line, $repository);
	$template = $user->loadEditorLink($path, '%l', $repository);

	$icon_edit = id(new PHUIIconView())
	->setIconFont('fa-pencil');
	$button = id(new PHUIButtonView())
	->setTag('a')
	->setText(pht('Open in Editor'))
	->setHref($editor_link)
	->setIcon($icon_edit)
	->setID('editor_link')
	->setMetadata(array('link_template' => $template))
	->setDisabled(!$editor_link);

	return $button;
	}

	private function renderFileButton($file_uri = null) {

	$base_uri = $this->getRequest()->getRequestURI();

	if ($file_uri) {
	$text = pht('Download Raw File');
	$href = $file_uri;
	$icon = 'fa-download';
	} else {
	$text = pht('View Raw File');
	$href = $base_uri->alter('view', 'raw');
	$icon = 'fa-file-text';
	}

	$iconview = id(new PHUIIconView())
	->setIconFont($icon);
	$button = id(new PHUIButtonView())
	->setTag('a')
	->setText($text)
	->setHref($href)
	->setIcon($iconview);

	return $button;
	}


	private function buildDisplayRows(
	array $lines,
	array $blame_list,
	array $blame_commits,
	$show_color,
	$show_blame) {

	$request = $this->getRequest();
	$viewer = $this->getViewer();
	$drequest = $this->getDiffusionRequest();
	$repository = $drequest->getRepository();

	$revision_map = array();
	$revisions = array();
	if ($blame_commits) {
	$commit_map = mpull($blame_commits, 'getCommitIdentifier', 'getPHID');

	$revision_ids = id(new DifferentialRevision())
	->loadIDsByCommitPHIDs(array_keys($commit_map));
	if ($revision_ids) {
	$revisions = id(new DifferentialRevisionQuery())
	->setViewer($viewer)
	->withIDs($revision_ids)
	->execute();
	$revisions = mpull($revisions, null, 'getID');
	}

	foreach ($revision_ids as $commit_phid => $revision_id) {
	$revision_map[$commit_map[$commit_phid]] = $revision_id;
	}
	}

	$phids = array();
	foreach ($blame_commits as $commit) {
	$author_phid = $commit->getAuthorPHID();
	if ($author_phid === null) {
	continue;
	}
	$phids[$author_phid] = $author_phid;
	}

	foreach ($revisions as $revision) {
	$author_phid = $revision->getAuthorPHID();
	if ($author_phid === null) {
	continue;
	}
	$phids[$author_phid] = $author_phid;
	}

	$handles = $viewer->loadHandles($phids);

	$colors = array();
	if ($blame_commits) {
	$epochs = array();

	foreach ($blame_commits as $identifier => $commit) {
	$epochs[$identifier] = $commit->getEpoch();
	}

	$epoch_list = array_filter($epochs);
	$epoch_list = array_unique($epoch_list);
	$epoch_list = array_values($epoch_list);

	$epoch_min = min($epoch_list);
	$epoch_max = max($epoch_list);
	$epoch_range = ($epoch_max - $epoch_min) + 1;

	foreach ($blame_commits as $identifier => $commit) {
	$epoch = $epochs[$identifier];
	if (!$epoch) {
	$color = '#ffffdd'; // Warning color, missing data.
	} else {
	$color_ratio = ($epoch - $epoch_min) / $epoch_range;
	$color_value = 0xE6 * (1.0 - $color_ratio);
	$color = sprintf(
	'#%02x%02x%02x',
	$color_value,
	0xF6,
	$color_value);
	}

	$colors[$identifier] = $color;
	}
	}

	$display = array();
	$last_identifier = null;
	$last_color = null;
	foreach ($lines as $line_index => $line) {
	$color = '#f6f6f6';
	$duplicate = false;
	if (isset($blame_list[$line_index])) {
	$identifier = $blame_list[$line_index];
	if (isset($colors[$identifier])) {
	$color = $colors[$identifier];
	}

	if ($identifier === $last_identifier) {
	$duplicate = true;
	} else {
	$last_identifier = $identifier;
	}
	}

	$display[$line_index] = array(
	'data' => $line,
	'target' => false,
	'highlighted' => false,
	'color' => $color,
	'duplicate' => $duplicate,
	);
	}

	$line_arr = array();
	$line_str = $drequest->getLine();
	$ranges = explode(',', $line_str);
	foreach ($ranges as $range) {
	if (strpos($range, '-') !== false) {
	list($min, $max) = explode('-', $range, 2);
	$line_arr[] = array(
	'min' => min($min, $max),
	'max' => max($min, $max),
	);
	} else if (strlen($range)) {
	$line_arr[] = array(
	'min' => $range,
	'max' => $range,
	);
	}
	}

	// Mark the first highlighted line as the target line.
	if ($line_arr) {
	$target_line = $line_arr[0]['min'];
	if (isset($display[$target_line - 1])) {
	$display[$target_line - 1]['target'] = true;
	}
	}

	// Mark all other highlighted lines as highlighted.
	foreach ($line_arr as $range) {
	for ($ii = $range['min']; $ii <= $range['max']; $ii++) {
	if (isset($display[$ii - 1])) {
	$display[$ii - 1]['highlighted'] = true;
	}
	}
	}

	$engine = null;
	$inlines = array();
	if ($this->getRequest()->getStr('lint') !== null && $this->lintMessages) {
	$engine = new PhabricatorMarkupEngine();
	$engine->setViewer($viewer);

	foreach ($this->lintMessages as $message) {
	$inline = id(new PhabricatorAuditInlineComment())
	->setSyntheticAuthor(
	ArcanistLintSeverity::getStringForSeverity($message['severity']).
	' '.$message['code'].' ('.$message['name'].')')
	->setLineNumber($message['line'])
	->setContent($message['description']);
	$inlines[$message['line']][] = $inline;

	$engine->addObject(
	$inline,
	PhabricatorInlineCommentInterface::MARKUP_FIELD_BODY);
	}

	$engine->process();
	require_celerity_resource('differential-changeset-view-css');
	}

	$rows = $this->renderInlines(
	idx($inlines, 0, array()),
	$show_blame,
	(bool)$this->coverage,
	$engine);

	// NOTE: We're doing this manually because rendering is otherwise
	// dominated by URI generation for very large files.
	$line_base = (string)$drequest->generateURI(
	array(
	'action' => 'browse',
	'stable' => true,
	));

	require_celerity_resource('aphront-tooltip-css');
	Javelin::initBehavior('phabricator-oncopy');
	Javelin::initBehavior('phabricator-tooltips');
	Javelin::initBehavior('phabricator-line-linker');

	// Render these once, since they tend to get repeated many times in large
	// blame outputs.
	$commit_links = $this->renderCommitLinks($blame_commits, $handles);
	$revision_links = $this->renderRevisionLinks($revisions, $handles);

	$skip_text = pht('Skip Past This Commit');
	foreach ($display as $line_index => $line) {
	$row = array();

	$line_number = $line_index + 1;
	$line_href = $line_base.'$'.$line_number;

	if (isset($blame_list[$line_index])) {
	$identifier = $blame_list[$line_index];
	} else {
	$identifier = null;
	}

	$revision_link = null;
	$commit_link = null;
	$before_link = null;
	$style = null;
	if ($identifier && !$line['duplicate']) {
	$style = 'background: '.$line['color'].';';

	if (isset($commit_links[$identifier])) {
	$commit_link = $commit_links[$identifier];
	}

	if (isset($revision_map[$identifier])) {
	$revision_id = $revision_map[$identifier];
	if (isset($revision_links[$revision_id])) {
	$revision_link = $revision_links[$revision_id];
	}
	}

	$skip_href = $line_href.'?before='.$identifier.'&view=blame';
	$before_link = javelin_tag(
	'a',
	array(
	'href' => $skip_href,
	'sigil' => 'has-tooltip',
	'meta' => array(
	'tip' => $skip_text,
	'align' => 'E',
	'size' => 300,
	),
	),
	"\xC2\xAB");
	}

	$row[] = phutil_tag(
	'th',
	array(
	'class' => 'diffusion-blame-link',
	),
	$before_link);

	$object_links = array();
	$object_links[] = $commit_link;
	if ($revision_link) {
	$object_links[] = phutil_tag('span', array(), '/');
	$object_links[] = $revision_link;
	}

	$row[] = phutil_tag(
	'th',
	array(
	'class' => 'diffusion-rev-link',
	),
	$object_links);

	$line_link = phutil_tag(
	'a',
	array(
	'href' => $line_href,
	'style' => $style,
	),
	$line_number);

	$row[] = javelin_tag(
	'th',
	array(
	'class' => 'diffusion-line-link',
	'sigil' => 'phabricator-source-line',
	'style' => $style,
	),
	$line_link);

	if ($line['target']) {
	Javelin::initBehavior(
	'diffusion-jump-to',
	array(
	'target' => 'scroll_target',
	));
	$anchor_text = phutil_tag(
	'a',
	array(
	'id' => 'scroll_target',
	),
	'');
	} else {
	$anchor_text = null;
	}

	$row[] = phutil_tag(
	'td',
	array(
	),
	array(
	$anchor_text,

	// NOTE: See phabricator-oncopy behavior.
	"\xE2\x80\x8B",

	// TODO: [HTML] Not ideal.
	phutil_safe_html(str_replace("\t", ' ', $line['data'])),
	));

	if ($this->coverage) {
	require_celerity_resource('differential-changeset-view-css');
	$cov_index = $line['line'] - 1;

	if (isset($this->coverage[$cov_index])) {
	$cov_class = $this->coverage[$cov_index];
	} else {
	$cov_class = 'N';
	}

	$row[] = phutil_tag(
	'td',
	array(
	'class' => 'cov cov-'.$cov_class,
	),
	'');
	}

	$rows[] = phutil_tag(
	'tr',
	array(
	'class' => ($line['highlighted'] ?
	'phabricator-source-highlight' :
	null),
	),
	$row);

	$cur_inlines = $this->renderInlines(
	idx($inlines, $line_number, array()),
	$show_blame,
	$this->coverage,
	$engine);
	foreach ($cur_inlines as $cur_inline) {
	$rows[] = $cur_inline;
	}
	}

	return $rows;
	}

	private function renderInlines(
	array $inlines,
	$show_blame,
	$has_coverage,
	$engine) {

	$rows = array();
	foreach ($inlines as $inline) {

	// TODO: This should use modern scaffolding code.

	$inline_view = id(new PHUIDiffInlineCommentDetailView())
	->setUser($this->getViewer())
	->setMarkupEngine($engine)
	->setInlineComment($inline)
	->render();

	$row = array_fill(0, ($show_blame ? 3 : 1), phutil_tag('th'));

	$row[] = phutil_tag('td', array(), $inline_view);

	if ($has_coverage) {
	$row[] = phutil_tag(
	'td',
	array(
	'class' => 'cov cov-I',
	));
	}

	$rows[] = phutil_tag('tr', array('class' => 'inline'), $row);
	}

	return $rows;
	}

	private function loadFileForData($path, $data) {
	$file = PhabricatorFile::buildFromFileDataOrHash(
	$data,
	array(
	'name' => basename($path),
	'ttl' => time() + 60 * 60 * 24,
	'viewPolicy' => PhabricatorPolicies::POLICY_NOONE,
	));

	$unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
	$file->attachToObject(
	$this->getDiffusionRequest()->getRepository()->getPHID());
	unset($unguarded);

	return $file;
	}

	private function buildRawResponse($path, $data) {
	$file = $this->loadFileForData($path, $data);
	return $file->getRedirectResponse();
	}

	private function buildImageCorpus($file_uri) {
	$properties = new PHUIPropertyListView();

	$properties->addImageContent(
	phutil_tag(
	'img',
	array(
	'src' => $file_uri,
	)));

	$file = $this->renderFileButton($file_uri);
	$header = id(new PHUIHeaderView())
	->setHeader(pht('Image'))
	->addActionLink($file);

	return id(new PHUIObjectBoxView())
	->setHeader($header)
	->addPropertyList($properties);
	}

	private function buildBinaryCorpus($file_uri, $data) {

	$size = new PhutilNumber(strlen($data));
	$text = pht('This is a binary file. It is %s byte(s) in length.', $size);
	$text = id(new PHUIBoxView())
	->addPadding(PHUI::PADDING_LARGE)
	->appendChild($text);

	$file = $this->renderFileButton($file_uri);
	$header = id(new PHUIHeaderView())
	->setHeader(pht('Details'))
	->addActionLink($file);

	$box = id(new PHUIObjectBoxView())
	->setHeader($header)
	->appendChild($text);

	return $box;
	}

	private function buildErrorCorpus($message) {
	$text = id(new PHUIBoxView())
	->addPadding(PHUI::PADDING_LARGE)
	->appendChild($message);

	$header = id(new PHUIHeaderView())
	->setHeader(pht('Details'));

	$box = id(new PHUIObjectBoxView())
	->setHeader($header)
	->appendChild($text);

	return $box;
	}

	private function buildBeforeResponse($before) {
	$request = $this->getRequest();
	$drequest = $this->getDiffusionRequest();

	// NOTE: We need to get the grandparent so we can capture filename changes
	// in the parent.

	$parent = $this->loadParentCommitOf($before);
	$old_filename = null;
	$was_created = false;
	if ($parent) {
	$grandparent = $this->loadParentCommitOf($parent);

	if ($grandparent) {
	$rename_query = new DiffusionRenameHistoryQuery();
	$rename_query->setRequest($drequest);
	$rename_query->setOldCommit($grandparent);
	$rename_query->setViewer($request->getUser());
	$old_filename = $rename_query->loadOldFilename();
	$was_created = $rename_query->getWasCreated();
	}
	}

	$follow = null;
	if ($was_created) {
	// If the file was created in history, that means older commits won't
	// have it. Since we know it existed at 'before', it must have been
	// created then; jump there.
	$target_commit = $before;
	$follow = 'created';
	} else if ($parent) {
	// If we found a parent, jump to it. This is the normal case.
	$target_commit = $parent;
	} else {
	// If there's no parent, this was probably created in the initial commit?
	// And the "was_created" check will fail because we can't identify the
	// grandparent. Keep the user at 'before'.
	$target_commit = $before;
	$follow = 'first';
	}

	$path = $drequest->getPath();
	$renamed = null;
	if ($old_filename !== null &&
	$old_filename !== '/'.$path) {
	$renamed = $path;
	$path = $old_filename;
	}

	$line = null;
	// If there's a follow error, drop the line so the user sees the message.
	if (!$follow) {
	$line = $this->getBeforeLineNumber($target_commit);
	}

	$before_uri = $drequest->generateURI(
	array(
	'action' => 'browse',
	'commit' => $target_commit,
	'line' => $line,
	'path' => $path,
	));

	$before_uri->setQueryParams($request->getRequestURI()->getQueryParams());
	$before_uri = $before_uri->alter('before', null);
	$before_uri = $before_uri->alter('renamed', $renamed);
	$before_uri = $before_uri->alter('follow', $follow);

	return id(new AphrontRedirectResponse())->setURI($before_uri);
	}

	private function getBeforeLineNumber($target_commit) {
	$drequest = $this->getDiffusionRequest();

	$line = $drequest->getLine();
	if (!$line) {
	return null;
	}

	$raw_diff = $this->callConduitWithDiffusionRequest(
	'diffusion.rawdiffquery',
	array(
	'commit' => $drequest->getCommit(),
	'path' => $drequest->getPath(),
	'againstCommit' => $target_commit,
	));
	$old_line = 0;
	$new_line = 0;

	foreach (explode("\n", $raw_diff) as $text) {
	if ($text[0] == '-' \|\| $text[0] == ' ') {
	$old_line++;
	}
	if ($text[0] == '+' \|\| $text[0] == ' ') {
	$new_line++;
	}
	if ($new_line == $line) {
	return $old_line;
	}
	}

	// We didn't find the target line.
	return $line;
	}

	private function loadParentCommitOf($commit) {
	$drequest = $this->getDiffusionRequest();
	$user = $this->getRequest()->getUser();

	$before_req = DiffusionRequest::newFromDictionary(
	array(
	'user' => $user,
	'repository' => $drequest->getRepository(),
	'commit' => $commit,
	));

	$parents = DiffusionQuery::callConduitWithDiffusionRequest(
	$user,
	$before_req,
	'diffusion.commitparentsquery',
	array(
	'commit' => $commit,
	));

	return head($parents);
	}

	private function renderRevisionTooltip(
	DifferentialRevision $revision,
	array $handles) {
	$viewer = $this->getRequest()->getUser();

	$date = phabricator_date($revision->getDateModified(), $viewer);
	$id = $revision->getID();
	$title = $revision->getTitle();
	$header = "D{$id} {$title}";

	$author = $handles[$revision->getAuthorPHID()]->getName();

	return "{$header}\n{$date} \xC2\xB7 {$author}";
	}

	private function renderCommitTooltip(
	PhabricatorRepositoryCommit $commit,
	$author) {

	$viewer = $this->getRequest()->getUser();

	$date = phabricator_date($commit->getEpoch(), $viewer);
	$summary = trim($commit->getSummary());

	return "{$summary}\n{$date} \xC2\xB7 {$author}";
	}

	protected function renderSearchForm($collapsed) {
	$drequest = $this->getDiffusionRequest();

	$forms = array();
	$form = id(new AphrontFormView())
	->setUser($this->getRequest()->getUser())
	->setMethod('GET');

	switch ($drequest->getRepository()->getVersionControlSystem()) {
	case PhabricatorRepositoryType::REPOSITORY_TYPE_SVN:
	$forms[] = id(clone $form)
	->appendChild(pht('Search is not available in Subversion.'));
	break;
	default:
	$forms[] = id(clone $form)
	->appendChild(
	id(new AphrontFormTextWithSubmitControl())
	->setLabel(pht('File Name'))
	->setSubmitLabel(pht('Search File Names'))
	->setName('find')
	->setValue($this->getRequest()->getStr('find')));
	$forms[] = id(clone $form)
	->appendChild(
	id(new AphrontFormTextWithSubmitControl())
	->setLabel(pht('Pattern'))
	->setSubmitLabel(pht('Grep File Content'))
	->setName('grep')
	->setValue($this->getRequest()->getStr('grep')));
	break;
	}

	$filter = new AphrontListFilterView();
	$filter->appendChild($forms);

	if ($collapsed) {
	$filter->setCollapsed(
	pht('Show Search'),
	pht('Hide Search'),
	pht('Search for file names or content in this directory.'),
	'#');
	}

	$filter = id(new PHUIBoxView())
	->addClass('mlt mlb')
	->appendChild($filter);

	return $filter;
	}

	protected function markupText($text) {
	$engine = PhabricatorMarkupEngine::newDiffusionMarkupEngine();
	$engine->setConfig('viewer', $this->getRequest()->getUser());
	$text = $engine->markupText($text);

	$text = phutil_tag(
	'div',
	array(
	'class' => 'phabricator-remarkup',
	),
	$text);

	return $text;
	}

	protected function buildHeaderView(DiffusionRequest $drequest) {
	$viewer = $this->getRequest()->getUser();

	$header = id(new PHUIHeaderView())
	->setUser($viewer)
	->setHeader($this->renderPathLinks($drequest, $mode = 'browse'))
	->setPolicyObject($drequest->getRepository());

	return $header;
	}

	protected function buildActionView(DiffusionRequest $drequest) {
	$viewer = $this->getRequest()->getUser();

	$view = id(new PhabricatorActionListView())
	->setUser($viewer);

	$history_uri = $drequest->generateURI(
	array(
	'action' => 'history',
	));

	$view->addAction(
	id(new PhabricatorActionView())
	->setName(pht('View History'))
	->setHref($history_uri)
	->setIcon('fa-list'));

	$behind_head = $drequest->getSymbolicCommit();
	$head_uri = $drequest->generateURI(
	array(
	'commit' => '',
	'action' => 'browse',
	));
	$view->addAction(
	id(new PhabricatorActionView())
	->setName(pht('Jump to HEAD'))
	->setHref($head_uri)
	->setIcon('fa-home')
	->setDisabled(!$behind_head));

	return $view;
	}

	protected function buildPropertyView(
	DiffusionRequest $drequest,
	PhabricatorActionListView $actions) {

	$viewer = $this->getViewer();

	$view = id(new PHUIPropertyListView())
	->setUser($viewer)
	->setActionList($actions);

	$stable_commit = $drequest->getStableCommit();

	$view->addProperty(
	pht('Commit'),
	phutil_tag(
	'a',
	array(
	'href' => $drequest->generateURI(
	array(
	'action' => 'commit',
	'commit' => $stable_commit,
	)),
	),
	$drequest->getRepository()->formatCommitName($stable_commit)));

	if ($drequest->getSymbolicType() == 'tag') {
	$symbolic = $drequest->getSymbolicCommit();
	$view->addProperty(pht('Tag'), $symbolic);

	$tags = $this->callConduitWithDiffusionRequest(
	'diffusion.tagsquery',
	array(
	'names' => array($symbolic),
	'needMessages' => true,
	));
	$tags = DiffusionRepositoryTag::newFromConduit($tags);

	$tags = mpull($tags, null, 'getName');
	$tag = idx($tags, $symbolic);

	if ($tag && strlen($tag->getMessage())) {
	$view->addSectionHeader(
	pht('Tag Content'), 'fa-tag');
	$view->addTextContent($this->markupText($tag->getMessage()));
	}
	}

	$repository = $drequest->getRepository();

	$owners = 'PhabricatorOwnersApplication';
	if (PhabricatorApplication::isClassInstalled($owners)) {
	$package_query = id(new PhabricatorOwnersPackageQuery())
	->setViewer($viewer)
	->withStatuses(array(PhabricatorOwnersPackage::STATUS_ACTIVE))
	->withControl(
	$repository->getPHID(),
	array(
	$drequest->getPath(),
	));

	$package_query->execute();

	$packages = $package_query->getControllingPackagesForPath(
	$repository->getPHID(),
	$drequest->getPath());

	if ($packages) {
	$ownership = id(new PHUIStatusListView())
	->setUser($viewer);

	foreach ($packages as $package) {
	$icon = 'fa-list-alt';
	$color = 'grey';

	$item = id(new PHUIStatusItemView())
	->setIcon($icon, $color)
	->setTarget($viewer->renderHandle($package->getPHID()));

	$ownership->addItem($item);
	}
	} else {
	$ownership = phutil_tag('em', array(), pht('None'));
	}

	$view->addProperty(pht('Packages'), $ownership);
	}

	return $view;
	}

	private function buildOpenRevisions() {
	$viewer = $this->getViewer();

	$drequest = $this->getDiffusionRequest();
	$repository = $drequest->getRepository();
	$path = $drequest->getPath();

	$path_map = id(new DiffusionPathIDQuery(array($path)))->loadPathIDs();
	$path_id = idx($path_map, $path);
	if (!$path_id) {
	return null;
	}

	$recent = (PhabricatorTime::getNow() - phutil_units('30 days in seconds'));

	$revisions = id(new DifferentialRevisionQuery())
	->setViewer($viewer)
	->withPath($repository->getID(), $path_id)
	->withStatus(DifferentialRevisionQuery::STATUS_OPEN)
	->withUpdatedEpochBetween($recent, null)
	->setOrder(DifferentialRevisionQuery::ORDER_MODIFIED)
	->setLimit(10)
	->needRelationships(true)
	->needFlags(true)
	->needDrafts(true)
	->execute();

	if (!$revisions) {
	return null;
	}

	$header = id(new PHUIHeaderView())
	->setHeader(pht('Open Revisions'))
	->setSubheader(
	pht('Recently updated open revisions affecting this file.'));

	$view = id(new DifferentialRevisionListView())
	->setHeader($header)
	->setRevisions($revisions)
	->setUser($viewer);

	$phids = $view->getRequiredHandlePHIDs();
	$handles = $this->loadViewerHandles($phids);
	$view->setHandles($handles);

	return $view;
	}

	- private function loadBlame($path, $commit) {
	+ private function loadBlame($path, $commit, $timeout) {
	$blame = $this->callConduitWithDiffusionRequest(
	'diffusion.blame',
	array(
	'commit' => $commit,
	'paths' => array($path),
	+ 'timeout' => $timeout,
	));

	- $identifiers = idx($blame, $path, array());
	+ $identifiers = idx($blame, $path, null);

	if ($identifiers) {
	$viewer = $this->getViewer();
	$drequest = $this->getDiffusionRequest();
	$repository = $drequest->getRepository();

	$commits = id(new DiffusionCommitQuery())
	->setViewer($viewer)
	->withRepository($repository)
	->withIdentifiers($identifiers)
	// TODO: We only fetch this to improve author display behavior, but
	// shouldn't really need to?
	->needCommitData(true)
	->execute();
	$commits = mpull($commits, null, 'getCommitIdentifier');
	} else {
	$commits = array();
	}

	return array($identifiers, $commits);
	}

	private function renderCommitLinks(array $commits, $handles) {
	$links = array();
	foreach ($commits as $identifier => $commit) {
	$tooltip = $this->renderCommitTooltip(
	$commit,
	$commit->renderAuthorShortName($handles));

	$commit_link = javelin_tag(
	'a',
	array(
	'href' => $commit->getURI(),
	'sigil' => 'has-tooltip',
	'meta' => array(
	'tip' => $tooltip,
	'align' => 'E',
	'size' => 600,
	),
	),
	$commit->getShortName());

	$links[$identifier] = $commit_link;
	}

	return $links;
	}

	private function renderRevisionLinks(array $revisions, $handles) {
	$links = array();

	foreach ($revisions as $revision) {
	$revision_id = $revision->getID();

	$tooltip = $this->renderRevisionTooltip($revision, $handles);

	$revision_link = javelin_tag(
	'a',
	array(
	'href' => $revision->getURI(),
	'sigil' => 'has-tooltip',
	'meta' => array(
	'tip' => $tooltip,
	'align' => 'E',
	'size' => 600,
	),
	),
	$revision->getMonogram());

	$links[$revision_id] = $revision_link;
	}

	return $links;
	}

	private function renderPlaintextCorpus(
	$file_corpus,
	array $blame_list,
	array $blame_commits,
	$show_blame) {

	$viewer = $this->getViewer();

	if (!$show_blame) {
	$corpus = $file_corpus;
	} else {
	$author_phids = array();
	foreach ($blame_commits as $commit) {
	$author_phid = $commit->getAuthorPHID();
	if ($author_phid === null) {
	continue;
	}
	$author_phids[$author_phid] = $author_phid;
	}

	if ($author_phids) {
	$handles = $viewer->loadHandles($author_phids);
	} else {
	$handles = array();
	}

	$authors = array();
	$names = array();
	foreach ($blame_commits as $identifier => $commit) {
	$author = $commit->renderAuthorShortName($handles);
	$name = $commit->getShortName();

	$authors[$identifier] = $author;
	$names[$identifier] = $name;
	}

	$lines = phutil_split_lines($file_corpus);

	$rows = array();
	foreach ($lines as $line_number => $line) {
	$commit_name = null;
	$author = null;

	if (isset($blame_list[$line_number])) {
	$identifier = $blame_list[$line_number];

	if (isset($names[$identifier])) {
	$commit_name = $names[$identifier];
	}

	if (isset($authors[$identifier])) {
	$author = $authors[$identifier];
	}
	}

	$rows[] = sprintf(
	'%-10s %-20s %s',
	$commit_name,
	$author,
	$line);
	}
	$corpus = implode('', $rows);
	}

	return phutil_tag(
	'textarea',
	array(
	'style' => 'border: none; width: 100%; height: 80em; '.
	'font-family: monospace',
	),
	$corpus);
	}

	}

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