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DiffusionCompareController.php
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Mon, Jul 1, 17:47

DiffusionCompareController.php
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<?php
final class DiffusionCompareController extends DiffusionController {
public function shouldAllowPublic() {
return true;
}
public function handleRequest(AphrontRequest $request) {
$response = $this->loadDiffusionContext();
if ($response) {
return $response;
}
$viewer = $this->getViewer();
$drequest = $this->getDiffusionRequest();
$repository = $drequest->getRepository();
require_celerity_resource('diffusion-css');
if (!$repository->supportsBranchComparison()) {
return $this->newDialog()
->setTitle(pht('Not Supported'))
->appendParagraph(
pht(
'Branch comparison is not supported for this version control '.
'system.'))
->addCancelButton($this->getApplicationURI(), pht('Okay'));
}
$head_ref = $request->getStr('head');
$against_ref = $request->getStr('against');
$must_prompt = false;
if (!$request->isFormPost()) {
if (!strlen($head_ref)) {
$head_ref = $drequest->getSymbolicCommit();
if (!strlen($head_ref)) {
$head_ref = $drequest->getBranch();
}
}
if (!strlen($against_ref)) {
$default_branch = $repository->getDefaultBranch();
if ($default_branch != $head_ref) {
$against_ref = $default_branch;
// If we filled this in by default, we want to prompt the user to
// confirm that this is really what they want.
$must_prompt = true;
}
}
}
$refs = $drequest->resolveRefs(
array_filter(
array(
$head_ref,
$against_ref,
)));
$identical = false;
if ($head_ref === $against_ref) {
$identical = true;
} else {
if (count($refs) == 2) {
if ($refs[$head_ref] === $refs[$against_ref]) {
$identical = true;
}
}
}
if ($must_prompt || count($refs) != 2 || $identical) {
return $this->buildCompareDialog(
$head_ref,
$against_ref,
$refs,
$identical);
}
if ($request->isFormPost()) {
// Redirect to a stable URI that can be copy/pasted.
$compare_uri = $drequest->generateURI(
array(
'action' => 'compare',
'head' => $head_ref,
'against' => $against_ref,
));
return id(new AphrontRedirectResponse())->setURI($compare_uri);
}
$crumbs = $this->buildCrumbs(
array(
'view' => 'compare',
));
$crumbs->setBorder(true);
$pager = id(new PHUIPagerView())
->readFromRequest($request);
$history = null;
try {
$history_results = $this->callConduitWithDiffusionRequest(
'diffusion.historyquery',
array(
'commit' => $head_ref,
'against' => $against_ref,
'path' => $drequest->getPath(),
'offset' => $pager->getOffset(),
'limit' => $pager->getPageSize() + 1,
));
$history = DiffusionPathChange::newFromConduit(
$history_results['pathChanges']);
$history = $pager->sliceResults($history);
$history_view = $this->newHistoryView(
$history_results,
$history,
$pager,
$head_ref,
$against_ref);
} catch (Exception $ex) {
if ($repository->isImporting()) {
$history_view = $this->renderStatusMessage(
pht('Still Importing...'),
pht(
'This repository is still importing. History is not yet '.
'available.'));
} else {
$history_view = $this->renderStatusMessage(
pht('Unable to Retrieve History'),
$ex->getMessage());
}
}
$header = id(new PHUIHeaderView())
->setHeader(
pht(
'Changes on %s but not %s',
phutil_tag('em', array(), $head_ref),
phutil_tag('em', array(), $against_ref)));
$curtain = $this->buildCurtain($head_ref, $against_ref);
$column_view = id(new PHUITwoColumnView())
->setHeader($header)
->setCurtain($curtain)
->setMainColumn(
array(
$history_view,
));
return $this->newPage()
->setTitle(
array(
$repository->getName(),
$repository->getDisplayName(),
))
->setCrumbs($crumbs)
->appendChild($column_view);
}
private function buildCompareDialog(
$head_ref,
$against_ref,
array $resolved,
$identical) {
$viewer = $this->getViewer();
$request = $this->getRequest();
$drequest = $this->getDiffusionRequest();
$repository = $drequest->getRepository();
$e_head = null;
$e_against = null;
$errors = array();
if ($request->isFormPost()) {
if (!strlen($head_ref)) {
$e_head = pht('Required');
$errors[] = pht(
'You must provide two different commits to compare.');
} else if (!isset($resolved[$head_ref])) {
$e_head = pht('Not Found');
$errors[] = pht(
'Commit "%s" is not a valid commit in this repository.',
$head_ref);
}
if (!strlen($against_ref)) {
$e_against = pht('Required');
$errors[] = pht(
'You must provide two different commits to compare.');
} else if (!isset($resolved[$against_ref])) {
$e_against = pht('Not Found');
$errors[] = pht(
'Commit "%s" is not a valid commit in this repository.',
$against_ref);
}
if ($identical) {
$e_head = pht('Identical');
$e_against = pht('Identical');
$errors[] = pht(
'Both references identify the same commit. You can not compare a '.
'commit against itself.');
}
}
$form = id(new AphrontFormView())
->setViewer($viewer)
->appendControl(
id(new AphrontFormTextControl())
->setLabel(pht('Head'))
->setName('head')
->setError($e_head)
->setValue($head_ref))
->appendControl(
id(new AphrontFormTextControl())
->setLabel(pht('Against'))
->setName('against')
->setError($e_against)
->setValue($against_ref));
$cancel_uri = $repository->generateURI(
array(
'action' => 'browse',
));
return $this->newDialog()
->setTitle(pht('Compare Against'))
->setWidth(AphrontDialogView::WIDTH_FORM)
->setErrors($errors)
->appendForm($form)
->addSubmitButton(pht('Compare'))
->addCancelButton($cancel_uri, pht('Cancel'));
}
private function buildCurtain($head_ref, $against_ref) {
$viewer = $this->getViewer();
$request = $this->getRequest();
$drequest = $this->getDiffusionRequest();
$repository = $drequest->getRepository();
$curtain = $this->newCurtainView(null);
$reverse_uri = $drequest->generateURI(
array(
'action' => 'compare',
'head' => $against_ref,
'against' => $head_ref,
));
$curtain->addAction(
id(new PhabricatorActionView())
->setName(pht('Reverse Comparison'))
->setHref($reverse_uri)
->setIcon('fa-refresh'));
$compare_uri = $drequest->generateURI(
array(
'action' => 'compare',
'head' => $head_ref,
));
$curtain->addAction(
id(new PhabricatorActionView())
->setName(pht('Compare Against...'))
->setIcon('fa-code-fork')
->setWorkflow(true)
->setHref($compare_uri));
// TODO: Provide a "Show Diff" action.
return $curtain;
}
private function newHistoryView(
array $results,
array $history,
PHUIPagerView $pager,
$head_ref,
$against_ref) {
$request = $this->getRequest();
$viewer = $this->getViewer();
$drequest = $this->getDiffusionRequest();
$repository = $drequest->getRepository();
if (!$history) {
return $this->renderStatusMessage(
pht('Up To Date'),
pht(
'There are no commits on %s that are not already on %s.',
phutil_tag('strong', array(), $head_ref),
phutil_tag('strong', array(), $against_ref)));
}
$history_table = id(new DiffusionHistoryTableView())
->setUser($viewer)
->setDiffusionRequest($drequest)
->setHistory($history);
$history_table->loadRevisions();
$history_table
->setParents($results['parents'])
->setFilterParents(true)
->setIsHead(!$pager->getOffset())
->setIsTail(!$pager->getHasMorePages());
$header = id(new PHUIHeaderView())
->setHeader(pht('Commits'));
return id(new PHUIObjectBoxView())
->setHeader($header)
->setBackground(PHUIObjectBoxView::BLUE_PROPERTY)
->setTable($history_table)
->addClass('diffusion-mobile-view')
->setPager($pager);
}
}

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