87 lines
2.1 KiB
PHP
87 lines
2.1 KiB
PHP
<?php
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namespace Gregwar\Cache;
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/**
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* Garbage collect a directory, this will crawl a directory, lookng
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* for files older than X days and destroy them
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*
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* @author Gregwar <g.passault@gmail.com>
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*/
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class GarbageCollect
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{
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/**
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* Drops old files of a directory
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*
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* @param string $directory the name of the target directory
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* @param int $days the number of days to consider a file old
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* @param bool $verbose enable verbose output
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*
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* @return bool true if all the files/directories of a directory was wiped
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*/
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public static function dropOldFiles($directory, $days = 30, $verbose = false)
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{
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$allDropped = true;
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$now = time();
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$dir = opendir($directory);
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if (!$dir) {
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if ($verbose) {
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echo "! Unable to open $directory\n";
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}
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return false;
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}
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while ($file = readdir($dir)) {
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if ($file == '.' || $file == '..') {
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continue;
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}
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$fullName = $directory.'/'.$file;
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$old = $now-filemtime($fullName);
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if (is_dir($fullName)) {
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// Directories are recursively crawled
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if (static::dropOldFiles($fullName, $days, $verbose)) {
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self::drop($fullName, $verbose);
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} else {
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$allDropped = false;
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}
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} else {
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if ($old > (24*60*60*$days)) {
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self::drop($fullName, $verbose);
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} else {
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$allDropped = false;
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}
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}
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}
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closedir($dir);
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return $allDropped;
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}
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/**
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* Drops a file or an empty directory
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*
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* @param string $file the file to be removed
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* @param bool $verbose the verbosity
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*/
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public static function drop($file, $verbose = false)
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{
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if (is_dir($file)) {
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@rmdir($file);
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} else {
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@unlink($file);
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}
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if ($verbose) {
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echo "> Dropping $file...\n";
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}
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}
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}
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