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<?php
/**
* CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
* @link https://cakephp.org CakePHP(tm) Project
* @since 3.3.0
* @license https://opensource.org/licenses/mit-license.php MIT License
*/
namespace Cake\Shell;
use Cake\Cache\Cache;
use Cake\Cache\Engine\ApcuEngine;
use Cake\Cache\Engine\WincacheEngine;
use Cake\Console\Shell;
use InvalidArgumentException;
/**
* Cache Shell.
*
* Provides a CLI interface to clear caches.
* This tool can be used in development or by deployment scripts when changes
* are made that require cached data to be removed.
*/
class CacheShell extends Shell
{
/**
* Get the option parser for this shell.
*
* @return \Cake\Console\ConsoleOptionParser
*/
public function getOptionParser()
{
$parser = parent::getOptionParser();
$parser->addSubcommand('list_prefixes', [
'help' => 'Show a list of all defined cache prefixes.',
]);
$parser->addSubcommand('clear_all', [
'help' => 'Clear all caches.',
]);
$parser->addSubcommand('clear', [
'help' => 'Clear the cache for a specified prefix.',
'parser' => [
'description' => [
'Clear the cache for a particular prefix.',
'For example, `cake cache clear _cake_model_` will clear the model cache',
'Use `cake cache list_prefixes` to list available prefixes'
],
'arguments' => [
'prefix' => [
'help' => 'The cache prefix to be cleared.',
'required' => true
]
]
]
]);
return $parser;
}
/**
* Clear metadata.
*
* @param string|null $prefix The cache prefix to be cleared.
* @throws \Cake\Console\Exception\StopException
* @return void
*/
public function clear($prefix = null)
{
try {
$engine = Cache::engine($prefix);
Cache::clear(false, $prefix);
if ($engine instanceof ApcuEngine) {
$this->warn("ApcuEngine detected: Cleared $prefix CLI cache successfully " .
"but $prefix web cache must be cleared separately.");
} elseif ($engine instanceof WincacheEngine) {
$this->warn("WincacheEngine detected: Cleared $prefix CLI cache successfully " .
"but $prefix web cache must be cleared separately.");
} else {
$this->out("<success>Cleared $prefix cache</success>");
}
} catch (InvalidArgumentException $e) {
$this->abort($e->getMessage());
}
}
/**
* Clear metadata.
*
* @return void
*/
public function clearAll()
{
$prefixes = Cache::configured();
foreach ($prefixes as $prefix) {
$this->clear($prefix);
}
}
/**
* Show a list of all defined cache prefixes.
*
* @return void
*/
public function listPrefixes()
{
$prefixes = Cache::configured();
foreach ($prefixes as $prefix) {
$this->out($prefix);
}
}
}