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Remove Library::RebuildCache
This commit is contained in:
Mike Colagrosso
Alex Cabal
parent
f4a19a2d12
commit
ec26e7f9af
2 changed files with 2 additions and 144 deletions
138
lib/Library.php
138
lib/Library.php
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@ -1,7 +1,6 @@
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<?
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use Safe\DateTimeImmutable;
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use function Safe\apcu_fetch;
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use function Safe\exec;
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use function Safe\filemtime;
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use function Safe\filesize;
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@ -9,8 +8,6 @@ use function Safe\glob;
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use function Safe\ksort;
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use function Safe\preg_replace;
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use function Safe\preg_split;
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use function Safe\shell_exec;
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use function Safe\sleep;
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use function Safe\usort;
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class Library{
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@ -598,141 +595,6 @@ class Library{
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return $retval;
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}
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/**
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* @throws Exceptions\AppException
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*/
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public static function RebuildCache(): void{
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// We check a lockfile because this can be a long-running command.
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// We don't want to queue up a bunch of these in case someone is refreshing the index constantly.
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$lockVar = 'library-cache-rebuilding';
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try{
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$val = apcu_fetch($lockVar);
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return;
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}
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catch(Safe\Exceptions\ApcuException){
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apcu_store($lockVar, true);
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}
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$collator = Collator::create('en_US'); // Used for sorting letters with diacritics like in author names
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if($collator === null){
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throw new Exceptions\AppException('Couldn\'t create collator object when rebuilding cache.');
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}
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$ebooks = [];
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$ebooksByCollection = [];
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$ebooksByTag = [];
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$collectionsByName = [];
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$authors = [];
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$tagsByName = [];
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foreach(explode("\n", trim(shell_exec('find ' . EBOOKS_DIST_PATH . ' -name "content.opf"'))) as $filename){
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try{
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$ebookWwwFilesystemPath = preg_replace('|/content\.opf|ius', '', $filename);
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$ebook = Ebook::FromFilesystem($ebookWwwFilesystemPath);
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$ebooks[$ebookWwwFilesystemPath] = $ebook;
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// Create the collections cache
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foreach($ebook->CollectionMemberships as $collectionMembership){
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$collection = $collectionMembership->Collection;
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$sequenceNumber = $collectionMembership->SequenceNumber;
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$urlSafeCollection = Formatter::MakeUrlSafe($collection->Name);
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if(!array_key_exists($urlSafeCollection, $ebooksByCollection)){
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$ebooksByCollection[$urlSafeCollection] = [];
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$collectionsByName[$urlSafeCollection] = $collection;
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}
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// Some items may have the same position in a collection,
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// like _Some Do Not..._ and _No More Parades_ are both #57 in the Modern Library's 100 best novels.
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// To accomodate that, we create an anonymous object that holds the sequence number as a separate value,
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// then later we sort by that instead of by array index.
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$sortItem = new stdClass();
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$sortItem->Ebook = $ebook;
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if($sequenceNumber !== null){
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$sortItem->Ordinal = $sequenceNumber;
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}
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else{
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$sortItem->Ordinal = 1;
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}
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$ebooksByCollection[$urlSafeCollection][] = $sortItem;
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}
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// Create the tags cache
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foreach($ebook->Tags as $tag){
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$tagsByName[$tag->UrlName] = $tag;
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if(!array_key_exists($tag->UrlName, $ebooksByTag)){
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$ebooksByTag[$tag->UrlName] = [];
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}
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$ebooksByTag[$tag->UrlName][] = $ebook;
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}
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// Create the authors cache
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$authorPath = EBOOKS_DIST_PATH . rtrim(preg_replace('|^/ebooks/|ius', '', $ebook->AuthorsUrl), '/');
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if(!array_key_exists($authorPath, $authors)){
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$authors[$authorPath] = [];
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}
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$authors[$authorPath][] = $ebook;
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}
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catch(\Exception){
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// An error in a book isn't fatal; just carry on.
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}
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}
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apcu_delete('ebooks');
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apcu_store('ebooks', $ebooks);
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// Before we sort the list of ebooks and lose the array keys, store them by individual ebook
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apcu_delete(new APCUIterator('/^ebook-/'));
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foreach($ebooks as $ebookWwwFilesystemPath => $ebook){
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apcu_store('ebook-' . $ebookWwwFilesystemPath, $ebook);
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}
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// Now store various collections
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apcu_delete(new APCUIterator('/^collection-/'));
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foreach($ebooksByCollection as $collection => $sortItems){
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// Sort the array by the ebook's ordinal in the collection. We use this custom sort function
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// because an ebook may share the same place in a collection with another ebook; see above.
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usort($sortItems, function($a, $b){
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if($a->Ordinal == $b->Ordinal){
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return 0;
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}
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return ($a->Ordinal < $b->Ordinal) ? -1 : 1;
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});
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// Now pull the actual ebooks out of the anonymous objects we just sorted
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$ebooks = [];
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foreach($sortItems as $sortItem){
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$ebooks[] = $sortItem->Ebook;
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}
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apcu_store('collection-' . $collection, $ebooks);
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}
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apcu_delete('collections');
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usort($collectionsByName, function($a, $b) use($collator){ return $collator->compare($a->GetSortedName(), $b->GetSortedName()); });
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apcu_store('collections', $collectionsByName);
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apcu_delete(new APCUIterator('/^tag-/'));
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foreach($ebooksByTag as $tagName => $ebooks){
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apcu_store('tag-' . $tagName, $ebooks);
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}
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ksort($tagsByName);
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apcu_delete('tags');
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apcu_store('tags', $tagsByName);
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apcu_delete(new APCUIterator('/^author-/'));
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foreach($authors as $author => $ebooks){
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apcu_store('author-' . $author, $ebooks);
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}
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apcu_delete($lockVar);
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apcu_store('is-cache-fresh', true);
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}
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/**
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* @return array<Artist>
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*/
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@ -4,10 +4,10 @@ usage(){
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echo -n
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fmt <<EOF
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DESCRIPTION
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Rebuild one of three caches stored in APCu for the standardebooks.org FPM pool.
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Rebuild one of the caches stored in APCu for the standardebooks.org FPM pool.
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USAGE
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rebuild-cache {library,bulk-downloads,feeds}
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rebuild-cache {bulk-downloads,feeds}
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EOF
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exit 1
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}
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@ -27,10 +27,6 @@ fi
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type="$1"
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if [ "${type}" = "library" ]; then
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echo "<?php require_once('Core.php'); Library::RebuildCache(); ?>" > /tmp/rebuild-cache.php
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fi
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if [ "${type}" = "bulk-downloads" ]; then
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echo "<?php require_once('Core.php'); Library::RebuildBulkDownloadsCache(); ?>" > /tmp/rebuild-cache.php
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fi
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