début implémentation cache
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							| @ -0,0 +1,7 @@ | ||||
| #!/usr/bin/php
 | ||||
| <?php | ||||
| require $_composer_autoload_path?? __DIR__.'/../vendor/autoload.php'; | ||||
| 
 | ||||
| use nulib\tools\NucacheApp; | ||||
| 
 | ||||
| NucacheApp::run(); | ||||
							
								
								
									
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								src/file/cache/CacheData.php
									
									
									
									
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								src/file/cache/CacheData.php
									
									
									
									
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							| @ -0,0 +1,49 @@ | ||||
| <?php | ||||
| namespace nulib\file\cache; | ||||
| 
 | ||||
| use nulib\cl; | ||||
| use nulib\php\func; | ||||
| use Traversable; | ||||
| 
 | ||||
| class CacheData { | ||||
|   /** @var string identifiant de cette donnée */ | ||||
|   const NAME = null; | ||||
| 
 | ||||
|   /** @var callable une fonction permettant de calculer la donnée */ | ||||
|   const COMPUTE = null; | ||||
| 
 | ||||
|   function __construct(?array $params=null) { | ||||
|     $this->name = $params["name"] ?? static::NAME; | ||||
|     $this->name ??= bin2hex(random_bytes(8)); | ||||
|     $this->compute = func::withn($params["compute"] ?? static::COMPUTE); | ||||
|   } | ||||
| 
 | ||||
|   protected string $name; | ||||
| 
 | ||||
|   protected ?func $compute; | ||||
| 
 | ||||
|   protected function compute() { | ||||
|     $compute = $this->compute; | ||||
|     return $compute !== null? $compute->invoke(): null; | ||||
|   } | ||||
| 
 | ||||
|   /** obtenir la donnée, en l'itérant au préalable si elle est traversable */ | ||||
|   function get(?string &$name, $compute=null) { | ||||
|     $name = $this->name; | ||||
|     $this->compute ??= func::withn($compute); | ||||
|     $data = $this->compute(); | ||||
|     if ($data instanceof Traversable) { | ||||
|       $data = cl::all($data); | ||||
|     } | ||||
|     return $data; | ||||
|   } | ||||
| 
 | ||||
|   /** obtenir un itérateur sur la donnée ou null s'il n'y a pas de données */ | ||||
|   function all(?string &$name, $compute=null): ?iterable { | ||||
|     $name = $this->name; | ||||
|     $this->compute ??= func::withn($compute); | ||||
|     $data = $this->compute(); | ||||
|     if ($data !== null && !is_iterable($data)) $data = [$data]; | ||||
|     return $data; | ||||
|   } | ||||
| } | ||||
							
								
								
									
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								src/file/cache/CacheFile.php
									
									
									
									
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								src/file/cache/CacheFile.php
									
									
									
									
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							| @ -0,0 +1,178 @@ | ||||
| <?php | ||||
| namespace nulib\file\cache; | ||||
| 
 | ||||
| use nulib\file\SharedFile; | ||||
| use nulib\os\path; | ||||
| use nulib\php\time\DateTime; | ||||
| use nulib\php\time\Delay; | ||||
| use nulib\str; | ||||
| 
 | ||||
| class CacheFile extends SharedFile { | ||||
|   /** @var string|int durée de vie par défaut des données mises en cache  */ | ||||
|   const DURATION = "1D"; // jusqu'au lendemain
 | ||||
| 
 | ||||
|   function __construct($file, ?array $params=null) { | ||||
|     if ($file === null) { | ||||
|       $rand = bin2hex(random_bytes(8)); | ||||
|       $file = sys_get_temp_dir()."/$rand"; | ||||
|     } | ||||
|     $file = path::ensure_ext($file, ".metadata.cache", ".cache"); | ||||
|     $this->basedir = path::dirname($file); | ||||
|     $basename = path::filename($file); | ||||
|     $this->basename = str::without_suffix(path::ext($basename), $basename); | ||||
|     $this->duration = Delay::with($params["duration"] ?? static::DURATION); | ||||
|     $this->overrideDuration = $params["override_duration"] ?? false; | ||||
|     $this->cacheNull = $params["cache_null"] ?? false; | ||||
|     $this->datafiles = []; | ||||
|     parent::__construct($file); | ||||
|   } | ||||
| 
 | ||||
|   /** @var string répertoire de base des fichiers de cache */ | ||||
|   protected string $basedir; | ||||
| 
 | ||||
|   /** @var string nom de base des fichiers de cache */ | ||||
|   protected string $basename; | ||||
| 
 | ||||
|   protected Delay $duration; | ||||
| 
 | ||||
|   protected bool $overrideDuration; | ||||
| 
 | ||||
|   protected bool $cacheNull; | ||||
| 
 | ||||
|   protected array $datafiles; | ||||
| 
 | ||||
|   /** | ||||
|    * vérifier si le fichier est valide. s'il est invalide, il faut le recréer. | ||||
|    * | ||||
|    * on assume que le fichier existe, vu qu'il a été ouvert en c+b | ||||
|    */ | ||||
|   protected function isValid(): bool { | ||||
|     # considèrer que le fichier est invalide s'il est de taille nulle
 | ||||
|     return $this->getSize() > 0; | ||||
|   } | ||||
| 
 | ||||
|   /** charger les données. le fichier a déjà été verrouillé en lecture */ | ||||
|   protected function loadData(): ?array { | ||||
|     $this->rewind(); | ||||
|     [ | ||||
|       "start" => $start, | ||||
|       "duration" => $duration, | ||||
|       "datafiles" => $datafiles, | ||||
|     ] = $this->unserialize(null, false, true); | ||||
|     if ($this->overrideDuration) { | ||||
|       $duration = Delay::with($this->duration, $start); | ||||
|     } | ||||
|     return [ | ||||
|       "start" => $start, | ||||
|       "duration" => $duration, | ||||
|       "datafiles" => $datafiles, | ||||
|     ]; | ||||
|   } | ||||
| 
 | ||||
|   /** tester s'il faut mettre les données à jour. le fichier a déjà été verrouillé en lecture */ | ||||
|   protected function shouldUpdate(bool $noCache=false): bool { | ||||
|     if ($this->isValid()) { | ||||
|       /** @var Delay $duration */ | ||||
|       ["duration" => $duration, | ||||
|       ] = $this->loadData(); | ||||
|       $expired = $duration->isElapsed(); | ||||
|     } else { | ||||
|       $expired = false; | ||||
|       $noCache = true; | ||||
|     } | ||||
|     return $noCache || $expired; | ||||
|   } | ||||
| 
 | ||||
|   /** sauvegarder les données. le fichier a déjà été verrouillé en écriture */ | ||||
|   protected function saveData(?DateTime $start=null, ?Delay $duration=null): void { | ||||
|     $duration ??= $this->duration; | ||||
|     if ($start === null) { | ||||
|       $start = new DateTime(); | ||||
|       $duration = Delay::with($duration, $start); | ||||
|     } | ||||
|     $this->ftruncate(); | ||||
|     $this->serialize([ | ||||
|       "start" => $start, | ||||
|       "duration" => $duration, | ||||
|       "datafiles" => $this->datafiles, | ||||
|     ], false, true); | ||||
|   } | ||||
| 
 | ||||
|   /** tester si $value peut être mis en cache */ | ||||
|   function shouldCache($value): bool { | ||||
|     return $this->cacheNull || $value !== null; | ||||
|   } | ||||
| 
 | ||||
|   /** obtenir les informations sur le fichier */ | ||||
|   function getInfos(): array { | ||||
|     $this->lockRead(); | ||||
|     try { | ||||
|       if (!$this->isValid()) { | ||||
|         return ["valid" => false]; | ||||
|       } | ||||
|       /** | ||||
|        * @var DateTime $start | ||||
|        * @var Delay $duration | ||||
|        */ | ||||
|       [ | ||||
|         "start" => $start, | ||||
|         "duration" => $duration, | ||||
|         "datafiles" => $datafiles, | ||||
|       ] = $this->loadData(); | ||||
|       return [ | ||||
|         "valid" => true, | ||||
|         "size" => $this->getSize(), | ||||
|         "start" => $start, | ||||
|         "duration" => strval($duration), | ||||
|         "date_start" => $start->format(), | ||||
|         "date_end" => $duration->getDest()->format(), | ||||
|         "datafiles" => $datafiles, | ||||
|       ]; | ||||
|     } finally { | ||||
|       $this->unlock(); | ||||
|     } | ||||
|   } | ||||
| 
 | ||||
|   const UPDATE_SUB = -1, UPDATE_SET = 0, UPDATE_ADD = 1; | ||||
| 
 | ||||
|   /** mettre à jour la durée de validité du fichier */ | ||||
|   function updateDuration($nduration, int $action=1): void { | ||||
|     $this->lockRead(); | ||||
|     try { | ||||
|       if (!$this->isValid()) return; | ||||
|       $this->lockWrite(); | ||||
|       /** | ||||
|        * @var DateTime $tstart | ||||
|        * @var Delay $duration | ||||
|        */ | ||||
|       [ | ||||
|         "start" => $start, | ||||
|         "duration" => $duration, | ||||
|       ] = $this->loadData(); | ||||
|       if ($action < 0) $duration->subDuration($nduration); | ||||
|       elseif ($action > 0) $duration->addDuration($nduration); | ||||
|       $this->saveData($start, $duration); | ||||
|     } finally { | ||||
|       $this->unlock(); | ||||
|     } | ||||
|   } | ||||
| 
 | ||||
|   /** supprimer les fichiers s'ils ont expiré */ | ||||
|   function deleteExpired(bool $force=false): bool { | ||||
|     $this->lockRead(); | ||||
|     try { | ||||
|       if ($force || $this->shouldUpdate()) { | ||||
|         $this->lockWrite(); | ||||
|         @unlink($this->file); | ||||
|         $basedir = $this->basedir; | ||||
|         foreach ($this->datafiles as $datafile) { | ||||
|           @unlink(path::join($basedir, $datafile)); | ||||
|         } | ||||
|         return true; | ||||
|       } | ||||
|     } finally { | ||||
|       $this->unlock(); | ||||
|     } | ||||
|     return false; | ||||
|   } | ||||
| } | ||||
							
								
								
									
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								src/tools/NucacheApp.php
									
									
									
									
									
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								src/tools/NucacheApp.php
									
									
									
									
									
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							| @ -0,0 +1,119 @@ | ||||
| <?php | ||||
| namespace nulib\tools; | ||||
| 
 | ||||
| use Exception; | ||||
| use nulib\app\cli\Application; | ||||
| use nulib\ext\yaml; | ||||
| use nulib\file\cache\CacheFile; | ||||
| use nulib\os\path; | ||||
| use nulib\output\msg; | ||||
| 
 | ||||
| class NucacheApp extends Application { | ||||
|   const ACTION_READ = 10, ACTION_INFOS = 20, ACTION_CLEAN = 30; | ||||
|   const ACTION_UPDATE = 40, ACTION_UPDATE_ADD = 41, ACTION_UPDATE_SUB = 42, ACTION_UPDATE_SET = 43; | ||||
| 
 | ||||
|   const ARGS = [ | ||||
|     "merge" => parent::ARGS, | ||||
|     "purpose" => "gestion de fichiers cache", | ||||
|     ["-r", "--read", "name" => "action", "value" => self::ACTION_READ, | ||||
|       "help" => "Afficher le contenu d'un fichier cache", | ||||
|     ], | ||||
|     ["-i", "--infos", "name" => "action", "value" => self::ACTION_INFOS, | ||||
|       "help" => "Afficher des informations sur le fichier cache", | ||||
|     ], | ||||
|     ["-k", "--clean", "name" => "action", "value" => self::ACTION_CLEAN, | ||||
|       "help" => "Supprimer le fichier cache s'il a expiré", | ||||
|     ], | ||||
|     ["-a", "--add-duration", "args" => 1, | ||||
|       "action" => [null, "->setActionUpdate", self::ACTION_UPDATE_ADD], | ||||
|       "help" => "Ajouter le nombre de secondes spécifié à la durée du cache", | ||||
|     ], | ||||
|     ["-b", "--sub-duration", "args" => 1, | ||||
|       "action" => [null, "->setActionUpdate", self::ACTION_UPDATE_SUB], | ||||
|       "help" => "Enlever le nombre de secondes spécifié à la durée du cache", | ||||
|     ], | ||||
|     ["-s", "--set-duration", "args" => 1, | ||||
|       "action" => [null, "->setActionUpdate", self::ACTION_UPDATE_SET], | ||||
|       "help" => "Mettre à jour la durée du cache à la valeur spécifiée", | ||||
|     ], | ||||
|   ]; | ||||
| 
 | ||||
|   protected $action = self::ACTION_READ; | ||||
| 
 | ||||
|   protected $updateAction, $updateDuration; | ||||
| 
 | ||||
|   protected $args; | ||||
| 
 | ||||
|   function setActionUpdate(int $action, $updateDuration): void { | ||||
|     $this->action = self::ACTION_UPDATE; | ||||
|     switch ($action) { | ||||
|     case self::ACTION_UPDATE_SUB: $this->updateAction = CacheFile::UPDATE_SUB; break; | ||||
|     case self::ACTION_UPDATE_SET: $this->updateAction = CacheFile::UPDATE_SET; break; | ||||
|     case self::ACTION_UPDATE_ADD: $this->updateAction = CacheFile::UPDATE_ADD; break; | ||||
|     } | ||||
|     $this->updateDuration = $updateDuration; | ||||
|   } | ||||
| 
 | ||||
|   protected function findCaches(string $dir, ?array &$files): void { | ||||
|     foreach (glob("$dir/*") as $file) { | ||||
|       if (is_dir($file)) { | ||||
|         $this->findCaches($file, $files); | ||||
|       } elseif (is_file($file) && fnmatch("*.cache", $file)) { | ||||
|         $files[] = $file; | ||||
|       } | ||||
|     } | ||||
|   } | ||||
| 
 | ||||
|   function main() { | ||||
|     $files = []; | ||||
|     foreach ($this->args as $arg) { | ||||
|       if (is_dir($arg)) { | ||||
|         $this->findCaches($arg, $files); | ||||
|       } elseif (is_file($arg)) { | ||||
|         $files[] = $arg; | ||||
|       } else { | ||||
|         msg::warning("$arg: fichier invalide ou introuvable"); | ||||
|       } | ||||
|     } | ||||
|     $showSection = count($files) > 1; | ||||
|     foreach ($files as $file) { | ||||
|       switch ($this->action) { | ||||
|       case self::ACTION_READ: | ||||
|         if ($showSection) msg::section($file); | ||||
|         $cache = new CacheFile($file, [ | ||||
|           "duration" => "INF", | ||||
|           "override_duration" => true, | ||||
|         ]); | ||||
|         //yaml::dump($cache->get());
 | ||||
|         break; | ||||
|       case self::ACTION_INFOS: | ||||
|         if ($showSection) msg::section($file); | ||||
|         $cache = new CacheFile($file); | ||||
|         yaml::dump($cache->getInfos()); | ||||
|         break; | ||||
|       case self::ACTION_CLEAN: | ||||
|         msg::action(path::ppath($file)); | ||||
|         $cache = new CacheFile($file); | ||||
|         try { | ||||
|           if ($cache->deleteExpired()) msg::asuccess("fichier supprimé"); | ||||
|           else msg::astep("fichier non expiré"); | ||||
|         } catch (Exception $e) { | ||||
|           msg::afailure($e); | ||||
|         } | ||||
|         break; | ||||
|       case self::ACTION_UPDATE: | ||||
|         msg::action(path::ppath($file)); | ||||
|         $cache = new CacheFile($file); | ||||
|         try { | ||||
|           $cache->updateDuration($this->updateDuration, $this->updateAction); | ||||
|           msg::asuccess("fichier mis à jour"); | ||||
|         } catch (Exception $e) { | ||||
|           msg::afailure($e); | ||||
|         } | ||||
|         break; | ||||
|       default: | ||||
|         self::die("$this->action: action non implémentée"); | ||||
|       } | ||||
|     } | ||||
|   } | ||||
| } | ||||
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