daux.io/libs/Cache.php
2018-06-07 20:40:38 +02:00

120 regels
2.6 KiB
PHP

<?php namespace Todaymade\Daux;
use Symfony\Component\Console\Output\OutputInterface;
use Todaymade\Daux\Daux;
class Cache
{
static $printed = false;
public static function getDirectory()
{
$dir = sys_get_temp_dir() . DIRECTORY_SEPARATOR . "dauxio" . DIRECTORY_SEPARATOR;
if (!Cache::$printed) {
Cache::$printed = true;
Daux::writeln("Using cache dir '$dir'", OutputInterface::VERBOSITY_VERBOSE);
}
return $dir;
}
/**
* Store an item in the cache for a given number of minutes.
*
* @param string $key
* @param mixed $value
* @return void
*/
public static function put($key, $value)
{
Cache::ensureCacheDirectoryExists($path = Cache::path($key));
file_put_contents($path, $value);
}
/**
* Create the file cache directory if necessary.
*
* @param string $path
* @return void
*/
protected static function ensureCacheDirectoryExists($path)
{
$parent = dirname($path);
if (!file_exists($parent)) {
mkdir($parent, 0777, true);
}
}
/**
* Remove an item from the cache.
*
* @param string $key
* @return bool
*/
public static function forget($key)
{
$path = Cache::path($key);
if (file_exists($path)) {
return unlink($path);
}
return false;
}
/**
* Retrieve an item from the cache by key.
*
* @param string|array $key
* @return mixed
*/
public static function get($key)
{
$path = Cache::path($key);
if (file_exists($path)) {
return file_get_contents($path);
}
return null;
}
/**
* Get the full path for the given cache key.
*
* @param string $key
* @return string
*/
protected static function path($key)
{
$parts = array_slice(str_split($hash = sha1($key), 2), 0, 2);
return Cache::getDirectory() . '/' . implode('/', $parts) . '/' . $hash;
}
public static function clear()
{
Cache::rrmdir(Cache::getDirectory());
}
protected static function rrmdir($dir)
{
if (is_dir($dir)) {
$objects = scandir($dir);
foreach ($objects as $object) {
if ($object != "." && $object != "..") {
if (is_dir($dir . "/" . $object)) {
Cache::rrmdir($dir . "/" . $object);
} else {
unlink($dir . "/" . $object);
}
}
}
rmdir($dir);
}
}
}