Easier/safer access to filePath in processed file struct

Zip/Zip.swift

@@ -207,23 +207,20 @@ public class Zip {
         // Get totalSize for progress handler
         for path in processedPaths {
             do {
-                if let filePath = path.filePathURL.path {
+                let filePath = path.filePath()
                 let fileAttributes = try fileManager.attributesOfItemAtPath(filePath)
                 let fileSize = fileAttributes[NSFileSize] as? Double
                 if let fileSize = fileSize {
                     totalSize += fileSize
                 }
             }
-            }
             catch {}
         }
         
         // Begin Zipping
         let zip = zipOpen(destinationPath, APPEND_STATUS_CREATE)
         for path in processedPaths {
-            guard let filePath = path.filePathURL.path else {
-                throw ZipError.ZipFail
-            }
+            let filePath = path.filePath()
             var isDirectory: ObjCBool = false
             fileManager.fileExistsAtPath(filePath, isDirectory: &isDirectory)
             if !isDirectory {

Zip/ZipUtilities.swift

@@ -19,6 +19,15 @@ internal class ZipUtilities {
     internal struct ProcessedFilePath {
         let filePathURL: NSURL
         let fileName: String?
+        
+        func filePath() -> String {
+            if let filePath = filePathURL.path {
+                return filePath
+            }
+            else {
+                return String()
+            }
+        }
     }
     
     //MARK: Path processing