From 7ad9f272a482802da2d43fe83841adbe9bcd8cb4 Mon Sep 17 00:00:00 2001
From: derchris
Date: Sat, 2 Feb 2019 15:35:30 +0100
Subject: update less.php to PHP 7.x compatible fork

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

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

diff --git a/lib/less.php/Cache.php b/lib/less.php/Cache.php
index bf5bf92..40d0358 100644
--- a/lib/less.php/Cache.php
+++ b/lib/less.php/Cache.php
@@ -207,6 +207,7 @@ class Less_Cache{
 
 	public static function SetCacheDir( $dir ){
 		Less_Cache::$cache_dir = $dir;
+		self::CheckCacheDir();
 	}
 
 	public static function CheckCacheDir(){
@@ -237,60 +238,63 @@ class Less_Cache{
 	public static function CleanCache(){
 		static $clean = false;
 
-		if( $clean ){
+
+		if( $clean || empty(Less_Cache::$cache_dir) ){
 			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 ){
-			$check_time = time() - self::$gc_lifetime;
-			foreach($files as $file){
+		if( !$files ){
+			return;
+		}
 
-				// don't delete if the file wasn't created with less.php
-				if( strpos($file,Less_Cache::$prefix) !== 0 ){
-					continue;
-				}
+		$check_time = time() - self::$gc_lifetime;
+		foreach($files as $file){
 
-				$full_path = Less_Cache::$cache_dir . $file;
 
-				// 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 the file wasn't created with less.php
+			if( strpos($file,Less_Cache::$prefix) !== 0 ){
+				continue;
+			}
 
-				// don't delete if it's a relatively new file
-				if( $mtime > $check_time ){
-					continue;
-				}
+			$parts = explode('.',$file);
+			$type = array_pop($parts);
 
-				$parts = explode('.',$file);
-				$type = array_pop($parts);
 
+			if( !isset($remove_types[$type]) ){
+				continue;
+			}
 
-				// delete css files based on the list files
-				if( $type === 'css' ){
-					continue;
-				}
+			$full_path = Less_Cache::$cache_dir . $file;
+			$mtime = filemtime($full_path);
 
+			// don't delete if it's a relatively new file
+			if( $mtime > $check_time ){
+				continue;
+			}
 
-				// delete 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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