Add in some cache stats for the about box

indra/llfilesystem/lldiskcache.cpp

@@ -187,8 +187,6 @@ const std::string LLDiskCache::metaDataToFilepath(const std::string id,
     file_path << assetTypeToString(at);
     file_path << ".asset";
 
-    LL_INFOS() << "filepath.str() = " << file_path.str() << LL_ENDL;
-
     return file_path.str();
 }
 
@@ -203,6 +201,24 @@ void LLDiskCache::updateFileAccessTime(const std::string file_path)
     boost::filesystem::last_write_time(file_path, file_time);
 }
 
+/**
+ * 
+ */
+const std::string LLDiskCache::getCacheInfo()
+{
+    std::ostringstream cache_info;
+
+    F32 max_in_mb = (F32)mMaxSizeBytes / (1024.0 * 1024.0);
+    F32 percent_used = ((F32)dirFileSize(mCacheDir) / (F32)mMaxSizeBytes) * 100.0;
+
+    cache_info << std::fixed;
+    cache_info << std::setprecision(1);
+    cache_info << "Max size " << max_in_mb << " MB ";
+    cache_info << "(" << percent_used << "% used)";
+
+    return cache_info.str();
+}
+
 /**
  * Clear the cache by removing all the files in the cache directory
  * individually. It's important to maintain control of which directory

indra/llfilesystem/lldiskcache.h

@@ -40,23 +40,6 @@ class LLDiskCache :
         virtual ~LLDiskCache() = default;
 
     public:
-        ///**
-        // * The location of the cache dir is set in llappviewer at startup via the
-        // * saved settings parameters.  We do not have access to those saved settings
-        // * here in LLCommon so we must provide an accessor for other classes to use
-        // * when they need it - e.g. LLFilesystem needs the path so it can write files
-        // * to it.
-        // */
-        //const std::string getCacheDirName() { return mCacheDir; }
-
-        ///**
-        // * Each cache filename has a prefix inserted (see definition of the
-        // * mCacheFilenamePrefix variable below for why) but the LLFileSystem
-        // * component needs access to it to in order to create the file so we
-        // * expose it by a getter here.
-        // */
-        //const std::string getCacheFilenamePrefix() { return mCacheFilenamePrefix; }
-
         /**
          * Construct a filename and path to it based on the file meta data
          * (id, asset type, additional 'extra' info like discard level perhaps)
@@ -86,6 +69,11 @@ class LLDiskCache :
          */
         void clearCache(const std::string cache_dir);
 
+        /**
+         * Return some information about the cache for use in About Box etc.
+         */
+        const std::string getCacheInfo();
+
     private:
         /**
          * Utility function to gather the total size the files in a given

indra/newview/llappviewer.cpp

@@ -3196,6 +3196,9 @@ LLSD LLAppViewer::getViewerInfo() const
 		info["SERVER_RELEASE_NOTES_URL"] = mServerReleaseNotesURL;
 	}
 
+    // populate field for new local disk cache with some details
+    info["DISK_CACHE_INFO"] = LLDiskCache::getInstance()->getCacheInfo();
+
 	return info;
 }
 

indra/newview/skins/default/xui/en/strings.xml

@@ -55,8 +55,9 @@ LOD factor: [LOD_FACTOR]
 Render quality: [RENDER_QUALITY]
 Advanced Lighting Model: [GPU_SHADERS]
 Texture memory: [TEXTURE_MEMORY]MB
+Disk cache: [DISK_CACHE_INFO]
 	</string>
-	<string name="AboutOSXHiDPI">
+  <string name="AboutOSXHiDPI">
 HiDPI display mode: [HIDPI]
 	</string>
 	<string name="AboutLibs">