Return an optional url with discardable result

Sources/Disk+Codable.swift

@@ -31,7 +31,8 @@ public extension Disk {
     ///   - path: file location to store the data (i.e. "Folder/file.json")
     ///   - encoder: custom JSONEncoder to encode value
     /// - Throws: Error if there were any issues encoding the struct or writing it to disk
-    static func save<T: Encodable>(_ value: T, to directory: Directory, as path: String, encoder: JSONEncoder = JSONEncoder()) throws {
+    @discardableResult
+    static func save<T: Encodable>(_ value: T, to directory: Directory, as path: String, encoder: JSONEncoder = JSONEncoder()) throws -> URL {
         if path.hasSuffix("/") {
             throw createInvalidFileNameForStructsError()
         }
@@ -40,6 +41,7 @@ public extension Disk {
             let data = try encoder.encode(value)
             try createSubfoldersBeforeCreatingFile(at: url)
             try data.write(to: url, options: .atomic)
+            return url
         } catch {
             throw error
         }

Sources/Disk+Data.swift

@@ -30,11 +30,13 @@ public extension Disk {
     ///   - directory: user directory to store the file in
     ///   - path: file location to store the data (i.e. "Folder/file.mp4")
     /// - Throws: Error if there were any issues writing the given data to disk
-    static func save(_ value: Data, to directory: Directory, as path: String) throws {
+    @discardableResult
+    static func save(_ value: Data, to directory: Directory, as path: String) throws -> URL {
         do {
             let url = try createURL(for: path, in: directory)
             try createSubfoldersBeforeCreatingFile(at: url)
             try value.write(to: url, options: .atomic)
+            return url
         } catch {
             throw error
         }

Sources/Disk+UIImage.swift

@@ -31,7 +31,8 @@ public extension Disk {
     ///   - directory: user directory to store the image file in
     ///   - path: file location to store the data (i.e. "Folder/file.png")
     /// - Throws: Error if there were any issues writing the image to disk
-    static func save(_ value: UIImage, to directory: Directory, as path: String) throws {
+    @discardableResult
+    static func save(_ value: UIImage, to directory: Directory, as path: String) throws -> URL {
         do {
             var imageData: Data
             if path.suffix(4).lowercased() == ".png" {
@@ -97,6 +98,7 @@ public extension Disk {
             let url = try createURL(for: path, in: directory)
             try createSubfoldersBeforeCreatingFile(at: url)
             try imageData.write(to: url, options: .atomic)
+            return url
         } catch {
             throw error
         }

Sources/Disk+[Data].swift

@@ -30,17 +30,21 @@ public extension Disk {
     ///   - directory: user directory to store the files in
     ///   - path: folder location to store the data files (i.e. "Folder/")
     /// - Throws: Error if there were any issues creating a folder and writing the given [Data] to files in it
-    static func save(_ value: [Data], to directory: Directory, as path: String) throws {
+    @discardableResult
+    static func save(_ value: [Data], to directory: Directory, as path: String) throws -> [URL] {
         do {
             let folderUrl = try createURL(for: path, in: directory)
             try createSubfoldersBeforeCreatingFile(at: folderUrl)
             try FileManager.default.createDirectory(at: folderUrl, withIntermediateDirectories: false, attributes: nil)
+            var urls: [URL] = []
             for i in 0..<value.count {
                 let data = value[i]
                 let dataName = "\(i)"
                 let dataUrl = folderUrl.appendingPathComponent(dataName, isDirectory: false)
                 try data.write(to: dataUrl, options: .atomic)
+                urls.append(dataUrl)
             }
+            return urls
         } catch {
             throw error
         }

Sources/Disk+[UIImage].swift

@@ -31,11 +31,13 @@ public extension Disk {
     ///   - directory: user directory to store the images in
     ///   - path: folder location to store the images (i.e. "Folder/")
     /// - Throws: Error if there were any issues creating a folder and writing the given images to it
-    static func save(_ value: [UIImage], to directory: Directory, as path: String) throws {
+    @discardableResult
+    static func save(_ value: [UIImage], to directory: Directory, as path: String) throws -> [URL] {
         do {
             let folderUrl = try createURL(for: path, in: directory)
             try createSubfoldersBeforeCreatingFile(at: folderUrl)
             try FileManager.default.createDirectory(at: folderUrl, withIntermediateDirectories: false, attributes: nil)
+            var urls: [URL] = []
             for i in 0..<value.count {
                 let image = value[i]
                 var imageData: Data
@@ -71,7 +73,9 @@ public extension Disk {
                 }
                 let imageUrl = folderUrl.appendingPathComponent(imageName, isDirectory: false)
                 try imageData.write(to: imageUrl, options: .atomic)
+                urls.append(imageUrl)
             }
+            return urls
         } catch {
             throw error
         }