From fd72b0f50a355006069c5a336441f08beb7d3c50 Mon Sep 17 00:00:00 2001
From: derchris
Date: Mon, 4 Feb 2019 13:11:28 +0100
Subject: Revert "update less.php to PHP 7.x compatible fork"

This reverts commit 7ad9f272a482802da2d43fe83841adbe9bcd8cb4.
---
 lib/less.php/Cache.php | 76 ++++++++++++++++++++++++--------------------------
 1 file changed, 36 insertions(+), 40 deletions(-)

(limited to 'lib/less.php/Cache.php')

diff --git a/lib/less.php/Cache.php b/lib/less.php/Cache.php
index 40d0358..bf5bf92 100644
--- a/lib/less.php/Cache.php
+++ b/lib/less.php/Cache.php
@@ -207,7 +207,6 @@ class Less_Cache{
 
 	public static function SetCacheDir( $dir ){
 		Less_Cache::$cache_dir = $dir;
-		self::CheckCacheDir();
 	}
 
 	public static function CheckCacheDir(){
@@ -238,63 +237,60 @@ class Less_Cache{
 	public static function CleanCache(){
 		static $clean = false;
 
-
-		if( $clean || empty(Less_Cache::$cache_dir) ){
+		if( $clean ){
 			return;
 		}
 
-		$clean = true;
-
-		// only remove files with extensions created by less.php
-		// css files removed based on the list files
-		$remove_types = array('lesscache'=>1,'list'=>1,'less'=>1,'map'=>1);
-
 		$files = scandir(Less_Cache::$cache_dir);
-		if( !$files ){
-			return;
-		}
-
-		$check_time = time() - self::$gc_lifetime;
-		foreach($files as $file){
+		if( $files ){
+			$check_time = time() - self::$gc_lifetime;
+			foreach($files as $file){
 
+				// don't delete if the file wasn't created with less.php
+				if( strpos($file,Less_Cache::$prefix) !== 0 ){
+					continue;
+				}
 
-			// don't delete if the file wasn't created with less.php
-			if( strpos($file,Less_Cache::$prefix) !== 0 ){
-				continue;
-			}
+				$full_path = Less_Cache::$cache_dir . $file;
 
-			$parts = explode('.',$file);
-			$type = array_pop($parts);
+				// make sure the file still exists
+				// css files may have already been deleted
+				if( !file_exists($full_path) ){
+					continue;
+				}
+				$mtime = filemtime($full_path);
 
+				// don't delete if it's a relatively new file
+				if( $mtime > $check_time ){
+					continue;
+				}
 
-			if( !isset($remove_types[$type]) ){
-				continue;
-			}
+				$parts = explode('.',$file);
+				$type = array_pop($parts);
 
-			$full_path = Less_Cache::$cache_dir . $file;
-			$mtime = filemtime($full_path);
 
-			// don't delete if it's a relatively new file
-			if( $mtime > $check_time ){
-				continue;
-			}
+				// delete css files based on the list files
+				if( $type === 'css' ){
+					continue;
+				}
 
 
-			// delete the list file and associated css file
-			if( $type === 'list' ){
-				self::ListFiles($full_path, $list, $css_file_name);
-				if( $css_file_name ){
-					$css_file = Less_Cache::$cache_dir . $css_file_name;
-					if( file_exists($css_file) ){
-						unlink($css_file);
+				// delete the list file and associated css file
+				if( $type === 'list' ){
+					self::ListFiles($full_path, $list, $css_file_name);
+					if( $css_file_name ){
+						$css_file = Less_Cache::$cache_dir . $css_file_name;
+						if( file_exists($css_file) ){
+							unlink($css_file);
+						}
 					}
 				}
-			}
 
-			unlink($full_path);
+				unlink($full_path);
+			}
 		}
 
-
+		$clean = true;
 	}
 
 
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