Feature/increase compatibility

Package.swift

@@ -17,11 +17,20 @@ let package = Package(
         .library(name: "Transformers", targets: ["Tokenizers", "Generation", "Models"]),
     ],
     dependencies: [
-        .package(url: "https://github.com/huggingface/swift-jinja.git", from: "2.0.0")
+        .package(url: "https://github.com/huggingface/swift-jinja.git", from: "2.0.0"),
+        .package(url: "https://github.com/apple/swift-crypto.git", from: "4.1.0"),
     ],
     targets: [
         .target(name: "Generation", dependencies: ["Tokenizers"]),
-        .target(name: "Hub", dependencies: [.product(name: "Jinja", package: "swift-jinja")], resources: [.process("Resources")], swiftSettings: swiftSettings),
+        .target(
+            name: "Hub",
+            dependencies: [
+                .product(name: "Jinja", package: "swift-jinja"),
+                .product(name: "Crypto", package: "swift-crypto"),
+            ],
+            resources: [.process("Resources")],
+            swiftSettings: swiftSettings
+        ),
         .target(name: "Models", dependencies: ["Tokenizers", "Generation"]),
         .target(name: "Tokenizers", dependencies: ["Hub", .product(name: "Jinja", package: "swift-jinja")]),
         .testTarget(name: "GenerationTests", dependencies: ["Generation"]),

Sources/Hub/Downloader.swift

@@ -6,15 +6,14 @@
 //  See LICENSE at https://github.com/huggingface/swift-coreml-diffusers/LICENSE
 //
 
-import Combine
 import Foundation
 
 /// A robust file downloader with support for resumable downloads and progress reporting.
 ///
 /// The Downloader class handles file downloads from remote URLs with features including
 /// automatic resume capability, progress tracking, speed monitoring, and retry mechanisms.
 /// It supports both foreground and background download sessions for different use cases.
-final class Downloader: NSObject, Sendable, ObservableObject {
+final class Downloader: NSObject, Sendable {
     private let destination: URL
     private let incompleteDestination: URL
     private let downloadResumeState: DownloadResumeState = .init()

Sources/Hub/HubApi.swift

@@ -5,7 +5,7 @@
 //  Created by Pedro Cuenca on 20231230.
 //
 
-import CryptoKit
+import Crypto
 import Foundation
 import Network
 import os
@@ -491,9 +491,8 @@ public extension HubApi {
             }
         }
 
-        /// Note we go from Combine in Downloader to callback-based progress reporting
-        /// We'll probably need to support Combine as well to play well with Swift UI
-        /// (See for example PipelineLoader in swift-coreml-diffusers)
+        /// Downloader emits progress over AsyncStream which we bridge here to a simple callback.
+        /// A Combine wrapper can be layered on top when needed for SwiftUI-style progress reporting.
         @discardableResult
         func download(progressHandler: @escaping (Double, Double?) -> Void) async throws -> URL {
             let localMetadata = try hub.readDownloadMetadata(metadataPath: metadataDestination)

Tests/HubTests/DownloaderTests.swift

@@ -5,7 +5,6 @@
 //  Created by Arda Atahan Ibis on 1/28/25.
 //
 
-import Combine
 import XCTest
 
 @testable import Hub