First commit

developer/vendor/gregwar/image/Gregwar/Image/GarbageCollect.php

@@ -0,0 +1,83 @@
+<?php
+
+namespace Gregwar\Image;
+
+/**
+ * Garbage collect a directory, this will crawl a directory, lookng
+ * for files older than X days and destroy them
+ *
+ * @author Gregwar <g.passault@gmail.com>
+ */
+class GarbageCollect
+{
+    /**
+     * Drops old files of a directory
+     *
+     * @param string $directory the name of the target directory
+     * @param int $days the number of days to consider a file old
+     * @param bool $verbose enable verbose output
+     *
+     * @return true if all the files/directories of a directory was wiped
+     */
+    public static function dropOldFiles($directory, $days = 30, $verbose = false)
+    {
+        $allDropped = true;
+        $now = time();
+
+        $dir = opendir($directory);
+
+        if (!$dir) {
+            if ($verbose) {
+                echo "! Unable to open $directory\n";
+            }
+
+            return false;
+        }
+
+        while ($file = readdir($dir)) {
+            if ($file == '.' || $file == '..') {
+                continue;
+            }
+
+            $fullName = $directory.'/'.$file;
+
+            $old = $now-filemtime($fullName);
+
+            if (is_dir($fullName)) {
+                // Directories are recursively crawled
+                if (static::dropOldFiles($fullName, $days, $verbose)) {
+                    self::drop($fullName, $verbose);
+                } else {
+                    $allDropped = false;
+                }
+            } else {
+                if ($old > (24*60*60*$days)) {
+                    self::drop($fullName, $verbose);
+                } else {
+                    $allDropped = false;
+                }
+            }
+        }
+
+        closedir($dir);
+
+        return $allDropped;
+    }
+
+    /**
+     * Drops a file or an empty directory
+     */
+    public static function drop($file, $verbose = false)
+    {
+        if (is_dir($file)) {
+            @rmdir($file);
+        } else {
+            @unlink($file);
+        }
+
+        if ($verbose) {
+            echo "> Dropping $file...\n";
+        }
+    }
+
+}