From 3e33c8e6f9320d64649692d70dbebc618df0588d Mon Sep 17 00:00:00 2001
From: Shadowfacts <me@shadowfacts.net>
Date: Thu, 17 Sep 2020 19:50:53 -0400
Subject: [PATCH] Minimize file system requests during image cache lookup

---
 Tusker/Caching/Cache.swift      | 1 +
 Tusker/Caching/ImageCache.swift | 3 +--
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Tusker/Caching/Cache.swift b/Tusker/Caching/Cache.swift
index efa0c02c..5a38e9e8 100644
--- a/Tusker/Caching/Cache.swift
+++ b/Tusker/Caching/Cache.swift
@@ -15,6 +15,7 @@ enum Cache<T> {
     case disk(DiskStorage<T>)
     case hybrid(HybridStorage<T>)
     
+    @available(*, deprecated, message: "disk-based caches synchronously interact with the file system. Avoid using if possible.")
     func existsObject(forKey key: String) throws -> Bool {
         switch self {
         case let .memory(memory):
diff --git a/Tusker/Caching/ImageCache.swift b/Tusker/Caching/ImageCache.swift
index fcd4052c..792fda47 100644
--- a/Tusker/Caching/ImageCache.swift
+++ b/Tusker/Caching/ImageCache.swift
@@ -38,8 +38,7 @@ class ImageCache {
     
     func get(_ url: URL, completion: ((Data?) -> Void)?) -> Request? {
         let key = url.absoluteString
-        if (try? cache.existsObject(forKey: key)) ?? false,
-            let data = try? cache.object(forKey: key) {
+        if let data = try? cache.object(forKey: key) {
             completion?(data)
             return nil
         } else {