public function testDiffChangesets()
 {
     $hunk = new DifferentialHunkModern();
     $hunk->setChanges("+a\n b\n-c");
     $hunk->setNewOffset(1);
     $hunk->setNewLen(2);
     $left = new DifferentialChangeset();
     $left->attachHunks(array($hunk));
     $tests = array("+a\n b\n-c" => array(array(), array()), "+a\n x\n-c" => array(array(), array()), "+aa\n b\n-c" => array(array(1), array(11)), " b\n-c" => array(array(1), array()), "+a\n b\n c" => array(array(), array(13)), "+a\n x\n c" => array(array(), array(13)));
     foreach ($tests as $changes => $expected) {
         $hunk = new DifferentialHunkModern();
         $hunk->setChanges($changes);
         $hunk->setNewOffset(11);
         $hunk->setNewLen(3);
         $right = new DifferentialChangeset();
         $right->attachHunks(array($hunk));
         $parser = new DifferentialChangesetParser();
         $parser->setOriginals($left, $right);
         $this->assertEqual($expected, $parser->diffOriginals(), $changes);
     }
 }
 public function processRequest()
 {
     $request = $this->getRequest();
     $author_phid = $request->getUser()->getPHID();
     $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;
     $changeset = id(new DifferentialChangeset())->load($id);
     if (!$changeset) {
         return new Aphront404Response();
     }
     $view = $request->getStr('view');
     if ($view) {
         $changeset->attachHunks($changeset->loadHunks());
         $phid = idx($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 && $vs != -1) {
                     $vs_changeset = id(new DifferentialChangeset())->load($vs);
                     if ($vs_changeset) {
                         $vs_changeset->attachHunks($vs_changeset->loadHunks());
                         return $this->buildRawFileResponse($vs_changeset, $is_new = true);
                     }
                 }
                 return $this->buildRawFileResponse($changeset, $is_new = false);
             default:
                 return new Aphront400Response();
         }
     }
     if ($vs && $vs != -1) {
         $vs_changeset = id(new DifferentialChangeset())->load($vs);
         if (!$vs_changeset) {
             return new Aphront404Response();
         }
     }
     if (!$vs) {
         $right = $changeset;
         $left = null;
         $right_source = $right->getID();
         $right_new = true;
         $left_source = $right->getID();
         $left_new = false;
         $render_cache_key = $right->getID();
     } else {
         if ($vs == -1) {
             $right = null;
             $left = $changeset;
             $right_source = $left->getID();
             $right_new = false;
             $left_source = $left->getID();
             $left_new = true;
             $render_cache_key = null;
         } else {
             $right = $changeset;
             $left = $vs_changeset;
             $right_source = $right->getID();
             $right_new = true;
             $left_source = $left->getID();
             $left_new = true;
             $render_cache_key = null;
         }
     }
     if ($left) {
         $left->attachHunks($left->loadHunks());
     }
     if ($right) {
         $right->attachHunks($right->loadHunks());
     }
     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;
     }
     $coverage = null;
     if ($right && $right->getDiffID()) {
         $unit = id(new DifferentialDiffProperty())->loadOneWhere('diffID = %d AND name = %s', $right->getDiffID(), 'arc:unit');
         if ($unit) {
             $coverage = array();
             foreach ($unit->getData() as $result) {
                 $result_coverage = idx($result, 'coverage');
                 if (!$result_coverage) {
                     continue;
                 }
                 $file_coverage = idx($result_coverage, $right->getFileName());
                 if (!$file_coverage) {
                     continue;
                 }
                 $coverage[] = $file_coverage;
             }
             $coverage = ArcanistUnitTestResult::mergeCoverage($coverage);
         }
     }
     $spec = $request->getStr('range');
     list($range_s, $range_e, $mask) = DifferentialChangesetParser::parseRangeSpecification($spec);
     $parser = new DifferentialChangesetParser();
     $parser->setCoverage($coverage);
     $parser->setChangeset($changeset);
     $parser->setRenderingReference($rendering_reference);
     $parser->setRenderCacheKey($render_cache_key);
     $parser->setRightSideCommentMapping($right_source, $right_new);
     $parser->setLeftSideCommentMapping($left_source, $left_new);
     $parser->setWhitespaceMode($request->getStr('whitespace'));
     if ($left && $right) {
         $parser->setOriginals($left, $right);
     }
     // Load both left-side and right-side inline comments.
     $inlines = $this->loadInlineComments(array($left_source, $right_source), $author_phid);
     if ($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);
     $handles = id(new PhabricatorObjectHandleData($phids))->loadHandles();
     $parser->setHandles($handles);
     $engine = PhabricatorMarkupEngine::newDifferentialMarkupEngine();
     $parser->setMarkupEngine($engine);
     if ($request->isAjax()) {
         // TODO: This is sort of lazy, the effect is just to not render "Edit"
         // and "Reply" links on the "standalone view".
         $parser->setUser($request->getUser());
     }
     $output = $parser->render($range_s, $range_e, $mask);
     $mcov = $parser->renderModifiedCoverage();
     if ($request->isAjax()) {
         $coverage = array('differential-mcoverage-' . md5($changeset->getFilename()) => $mcov);
         return id(new PhabricatorChangesetResponse())->setRenderedChangeset($output)->setCoverage($coverage);
     }
     Javelin::initBehavior('differential-show-more', array('uri' => '/differential/changeset/', 'whitespace' => $request->getStr('whitespace')));
     Javelin::initBehavior('differential-comment-jump', array());
     $detail = new DifferentialChangesetDetailView();
     $detail->setChangeset($changeset);
     $detail->appendChild($output);
     $detail->setVsChangesetID($left_source);
     $output = id(new DifferentialPrimaryPaneView())->setLineWidthFromChangesets(array($changeset))->appendChild('<div class="differential-review-stage" ' . 'id="differential-review-stage">' . $detail->render() . '</div>');
     return $this->buildStandardPageResponse(array($output), array('title' => 'Changeset View'));
 }
 public function processRequest()
 {
     $request = $this->getRequest();
     $author_phid = $request->getUser()->getPHID();
     $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;
     }
     $changesets = id(new DifferentialChangesetQuery())->setViewer($request->getUser())->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, $is_new = false);
             default:
                 return new Aphront400Response();
         }
     }
     if (!$vs) {
         $right = $changeset;
         $left = null;
         $right_source = $right->getID();
         $right_new = true;
         $left_source = $right->getID();
         $left_new = false;
         $render_cache_key = $right->getID();
     } else {
         if ($vs == -1) {
             $right = null;
             $left = $changeset;
             $right_source = $left->getID();
             $right_new = false;
             $left_source = $left->getID();
             $left_new = true;
             $render_cache_key = null;
         } else {
             $right = $changeset;
             $left = $vs_changeset;
             $right_source = $right->getID();
             $right_new = true;
             $left_source = $left->getID();
             $left_new = true;
             $render_cache_key = null;
         }
     }
     if ($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;
     }
     $coverage = null;
     if ($right && $right->getDiffID()) {
         $unit = id(new DifferentialDiffProperty())->loadOneWhere('diffID = %d AND name = %s', $right->getDiffID(), 'arc:unit');
         if ($unit) {
             $coverage = array();
             foreach ($unit->getData() as $result) {
                 $result_coverage = idx($result, 'coverage');
                 if (!$result_coverage) {
                     continue;
                 }
                 $file_coverage = idx($result_coverage, $right->getFileName());
                 if (!$file_coverage) {
                     continue;
                 }
                 $coverage[] = $file_coverage;
             }
             $coverage = ArcanistUnitTestResult::mergeCoverage($coverage);
         }
     }
     $spec = $request->getStr('range');
     list($range_s, $range_e, $mask) = DifferentialChangesetParser::parseRangeSpecification($spec);
     $parser = new DifferentialChangesetParser();
     $parser->setCoverage($coverage);
     $parser->setChangeset($changeset);
     $parser->setRenderingReference($rendering_reference);
     $parser->setRenderCacheKey($render_cache_key);
     $parser->setRightSideCommentMapping($right_source, $right_new);
     $parser->setLeftSideCommentMapping($left_source, $left_new);
     $parser->setWhitespaceMode($request->getStr('whitespace'));
     $parser->setCharacterEncoding($request->getStr('encoding'));
     $parser->setHighlightAs($request->getStr('highlight'));
     if ($request->getStr('renderer') == '1up') {
         $parser->setRenderer(new DifferentialChangesetOneUpRenderer());
     }
     if ($left && $right) {
         $parser->setOriginals($left, $right);
     }
     // Load both left-side and right-side inline comments.
     $inlines = $this->loadInlineComments(array($left_source, $right_source), $author_phid);
     if ($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();
     $engine->setViewer($request->getUser());
     foreach ($inlines as $inline) {
         $engine->addObject($inline, PhabricatorInlineCommentInterface::MARKUP_FIELD_BODY);
     }
     $engine->process();
     $parser->setMarkupEngine($engine);
     if ($request->isAjax()) {
         // TODO: This is sort of lazy, the effect is just to not render "Edit"
         // and "Reply" links on the "standalone view".
         $parser->setUser($request->getUser());
     }
     $output = $parser->render($range_s, $range_e, $mask);
     $mcov = $parser->renderModifiedCoverage();
     if ($request->isAjax()) {
         $coverage = array('differential-mcoverage-' . md5($changeset->getFilename()) => $mcov);
         return id(new PhabricatorChangesetResponse())->setRenderedChangeset($output)->setCoverage($coverage);
     }
     Javelin::initBehavior('differential-show-more', array('uri' => '/differential/changeset/', 'whitespace' => $request->getStr('whitespace')));
     Javelin::initBehavior('differential-comment-jump', array());
     // TODO: [HTML] Clean up DifferentialChangesetParser output, but it's
     // undergoing like six kinds of refactoring anyway.
     $output = phutil_safe_html($output);
     $detail = new DifferentialChangesetDetailView();
     $detail->setChangeset($changeset);
     $detail->appendChild($output);
     $detail->setVsChangesetID($left_source);
     $panel = new DifferentialPrimaryPaneView();
     $panel->appendChild(phutil_tag('div', array('class' => 'differential-review-stage', 'id' => 'differential-review-stage'), $detail->render()));
     $crumbs = $this->buildApplicationCrumbs();
     $revision_id = $changeset->getDiff()->getRevisionID();
     if ($revision_id) {
         $crumbs->addTextCrumb('D' . $revision_id, '/D' . $revision_id);
     }
     $diff_id = $changeset->getDiff()->getID();
     if ($diff_id) {
         $crumbs->addTextCrumb(pht('Diff %d', $diff_id), $this->getApplicationURI('diff/' . $diff_id));
     }
     $crumbs->addTextCrumb($changeset->getDisplayFilename());
     $box = id(new PHUIObjectBoxView())->setHeaderText(pht('Standalone View'))->appendChild($panel);
     return $this->buildApplicationPage(array($crumbs, $box), array('title' => pht('Changeset View'), 'device' => false));
 }