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phab/src/applications/diviner/publisher/DivinerStaticPublisher.php
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DivinerStaticPublisher.php
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<?php
final class DivinerStaticPublisher extends DivinerPublisher {
private $publishCache;
private $atomNameMap;
private function getPublishCache() {
if (!$this->publishCache) {
$dir = implode(
DIRECTORY_SEPARATOR,
array(
$this->getConfig('root'),
'.divinercache',
$this->getConfig('name'),
'static',
));
$this->publishCache = new DivinerPublishCache($dir);
}
return $this->publishCache;
}
protected function loadAllPublishedHashes() {
return array_keys($this->getPublishCache()->getPathMap());
}
protected function deleteDocumentsByHash(array $hashes) {
$root = $this->getConfig('root');
$cache = $this->getPublishCache();
foreach ($hashes as $hash) {
$paths = $cache->getAtomPathsFromCache($hash);
foreach ($paths as $path) {
$abs = $root.DIRECTORY_SEPARATOR.$path;
Filesystem::remove($abs);
// If the parent directory is now empty, clean it up.
$dir = dirname($abs);
while (true) {
if (!Filesystem::isDescendant($dir, $root)) {
// Directory is outside of the root.
break;
}
if (Filesystem::listDirectory($dir)) {
// Directory is not empty.
break;
}
Filesystem::remove($dir);
$dir = dirname($dir);
}
}
$cache->removeAtomPathsFromCache($hash);
$cache->deleteAtomFromIndex($hash);
}
}
protected function createDocumentsByHash(array $hashes) {
$indexes = array();
$cache = $this->getPublishCache();
foreach ($hashes as $hash) {
$atom = $this->getAtomFromGraphHash($hash);
$paths = array();
if ($this->shouldGenerateDocumentForAtom($atom)) {
$content = $this->getRenderer()->renderAtom($atom);
$this->writeDocument($atom, $content);
$paths[] = $this->getAtomRelativePath($atom);
if ($this->getAtomSimilarIndex($atom) !== null) {
$index = dirname($this->getAtomRelativePath($atom)).'index.html';
$indexes[$index] = $atom;
$paths[] = $index;
}
$this->addAtomToIndex($hash, $atom);
}
$cache->addAtomPathsToCache($hash, $paths);
}
foreach ($indexes as $index => $atoms) {
// TODO: Publish disambiguation pages.
}
$this->publishIndex();
$cache->writePathMap();
$cache->writeIndex();
}
private function publishIndex() {
$index = $this->getPublishCache()->getIndex();
$refs = array();
foreach ($index as $hash => $dictionary) {
$refs[$hash] = DivinerAtomRef::newFromDictionary($dictionary);
}
$content = $this->getRenderer()->renderAtomIndex($refs);
$path = implode(
DIRECTORY_SEPARATOR,
array(
$this->getConfig('root'),
'docs',
$this->getConfig('name'),
'index.html',
));
Filesystem::writeFile($path, $content);
}
public function findAtomByRef(DivinerAtomRef $ref) {
if ($ref->getBook() != $this->getConfig('name')) {
return null;
}
if ($this->atomNameMap === null) {
$name_map = array();
foreach ($this->getPublishCache()->getIndex() as $hash => $dict) {
$name_map[$dict['name']][$hash] = $dict;
}
$this->atomNameMap = $name_map;
}
$name = $ref->getName();
if (empty($this->atomNameMap[$name])) {
return null;
}
$candidates = $this->atomNameMap[$name];
foreach ($candidates as $key => $dict) {
$candidates[$key] = DivinerAtomRef::newFromDict($dict);
if ($ref->getType()) {
if ($candidates[$key]->getType() != $ref->getType()) {
unset($candidates[$key]);
}
}
if ($ref->getContext()) {
if ($candidates[$key]->getContext() != $ref->getContext()) {
unset($candidates[$key]);
}
}
}
// If we have exactly one uniquely identifiable atom, return it.
if (count($candidates) == 1) {
return $this->getAtomFromNodeHash(last_key($candidates));
}
return null;
}
private function addAtomToIndex($hash, DivinerAtom $atom) {
$ref = $atom->getRef();
$ref->setIndex($this->getAtomSimilarIndex($atom));
$ref->setSummary($this->getRenderer()->renderAtomSummary($atom));
$this->getPublishCache()->addAtomToIndex($hash, $ref->toDictionary());
}
private function writeDocument(DivinerAtom $atom, $content) {
$root = $this->getConfig('root');
$path = $root.DIRECTORY_SEPARATOR.$this->getAtomRelativePath($atom);
if (!Filesystem::pathExists($path)) {
Filesystem::createDirectory($path, $umask = 0755, $recursive = true);
}
Filesystem::writeFile($path.'index.html', $content);
return $this;
}
private function getAtomRelativePath(DivinerAtom $atom) {
$ref = $atom->getRef();
$book = $ref->getBook();
$type = $ref->getType();
$context = $ref->getContext();
$name = $ref->getName();
$path = array(
'docs',
$book,
$type,
);
if ($context !== null) {
$path[] = $context;
}
$path[] = $name;
$index = $this->getAtomSimilarIndex($atom);
if ($index !== null) {
$path[] = '@'.$index;
}
$path[] = null;
return implode(DIRECTORY_SEPARATOR, $path);
}
}
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