From 737140d4cb718b1d6b8f2330f4e86e9943c5ec4f Mon Sep 17 00:00:00 2001
From: Luke Durrant <contact@lukedurrant.com>
Date: Wed, 20 May 2015 17:28:06 +1000
Subject: [PATCH] Added support for custom disk cache folder with fall back for
 caches directory

---
 SDWebImage/SDImageCache.h |  8 ++++++++
 SDWebImage/SDImageCache.m | 15 ++++++++++++++-
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/SDWebImage/SDImageCache.h b/SDWebImage/SDImageCache.h
index 0dd05d10c..e1009e56c 100644
--- a/SDWebImage/SDImageCache.h
+++ b/SDWebImage/SDImageCache.h
@@ -76,6 +76,14 @@ typedef void(^SDWebImageCalculateSizeBlock)(NSUInteger fileCount, NSUInteger tot
  */
 - (id)initWithNamespace:(NSString *)ns;
 
+/**
+ * Init a new cache store with a specific namespace and directory
+ *
+ * @param ns The namespace to use for this cache store
+ * @param directory Directory to cache disk images in
+ */
+- (id)initWithNamespace:(NSString *)ns diskCacheDirectory:(NSString *)directory;
+
 -(NSString *)makeDiskCachePath:(NSString*)fullNamespace;
 
 /**
diff --git a/SDWebImage/SDImageCache.m b/SDWebImage/SDImageCache.m
index c8dddf0f7..af7bcd28d 100644
--- a/SDWebImage/SDImageCache.m
+++ b/SDWebImage/SDImageCache.m
@@ -84,6 +84,11 @@ - (id)init {
 }
 
 - (id)initWithNamespace:(NSString *)ns {
+    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);
+    return [self initWithNamespace:ns diskCacheDirectory:paths[0]];
+}
+
+- (id)initWithNamespace:(NSString *)ns diskCacheDirectory:(NSString *)directory {
     if ((self = [super init])) {
         NSString *fullNamespace = [@"com.hackemist.SDWebImageCache." stringByAppendingString:ns];
 
@@ -101,7 +106,15 @@ - (id)initWithNamespace:(NSString *)ns {
         _memCache.name = fullNamespace;
 
         // Init the disk cache
-        _diskCachePath = [self makeDiskCachePath:fullNamespace];
+        if(directory!=nil)
+        {
+            _diskCachePath = [directory stringByAppendingPathComponent:fullNamespace];
+        }
+        else
+        {
+            NSArray *paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);
+            _diskCachePath = [paths[0] stringByAppendingString:fullNamespace];
+        }
 
         // Set decompression to YES
         _shouldDecompressImages = YES;