Updated swift-transformers, do not use background url session in CLI

Package.resolved

@@ -14,8 +14,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/huggingface/swift-transformers.git",
       "state" : {
-        "revision" : "24605a8c0cc974bec5b94a6752eb687bae77db31",
-        "version" : "0.1.3"
+        "revision" : "3bd02269b7797ade67c15679a575cd5c6f203ce6",
+        "version" : "0.1.5"
       }
     }
   ],

Package.swift

@@ -20,7 +20,7 @@ let package = Package(
         ),
     ],
     dependencies: [
-        .package(url: "https://github.com/huggingface/swift-transformers.git", exact: "0.1.3"),
+        .package(url: "https://github.com/huggingface/swift-transformers.git", exact: "0.1.5"),
         .package(url: "https://github.com/apple/swift-argument-parser.git", exact: "1.3.0"),
     ],
     targets: [

Sources/WhisperKit/Core/Utils.swift

@@ -272,10 +272,11 @@ public func resolveAbsolutePath(_ inputPath: String) -> String {
 
 func loadTokenizer(
     for pretrained: ModelVariant,
-    tokenizerFolder: URL? = nil
+    tokenizerFolder: URL? = nil,
+    useBackgroundSession: Bool = false
 ) async throws -> Tokenizer {
     let tokenizerName = tokenizerNameForVariant(pretrained)
-    let hubApi = HubApi(downloadBase: tokenizerFolder)
+    let hubApi = HubApi(downloadBase: tokenizerFolder, useBackgroundSession: useBackgroundSession)
     return try await AutoTokenizer.from(pretrained: tokenizerName, hubApi: hubApi)
 }
 

Sources/WhisperKit/Core/WhisperKit.swift

@@ -21,8 +21,6 @@ public class WhisperKit: Transcriber {
     public var modelVariant: ModelVariant = .tiny
     public var modelState: ModelState = .unloaded
     public var modelCompute: ModelComputeOptions
-    public var modelFolder: URL?
-    public var tokenizerFolder: URL?
     public var tokenizer: Tokenizer?
 
     /// Protocols
@@ -48,7 +46,13 @@ public class WhisperKit: Transcriber {
     public var decoderInputs: DecodingInputs?
     public var currentTimings: TranscriptionTimings?
 
+    /// State
     public let progress = Progress()
+
+    /// Configuration
+    public var modelFolder: URL?
+    public var tokenizerFolder: URL?
+    private let useBackgroundDownloadSession: Bool
 
     public init(
         model: String? = nil,
@@ -67,7 +71,8 @@ public class WhisperKit: Transcriber {
         logLevel: Logging.LogLevel = .info,
         prewarm: Bool? = nil,
         load: Bool? = nil,
-        download: Bool = true
+        download: Bool = true,
+        useBackgroundDownloadSession: Bool = false
     ) async throws {
         self.modelCompute = computeOptions ?? ModelComputeOptions()
         self.audioProcessor = audioProcessor ?? AudioProcessor()
@@ -77,6 +82,7 @@ public class WhisperKit: Transcriber {
         self.logitsFilters = logitsFilters ?? []
         self.segmentSeeker = segmentSeeker ?? SegmentSeeker()
         self.tokenizerFolder = tokenizerFolder
+        self.useBackgroundDownloadSession = useBackgroundDownloadSession
         Logging.shared.logLevel = verbose ? logLevel : .none
         currentTimings = TranscriptionTimings()
 
@@ -170,8 +176,14 @@ public class WhisperKit: Transcriber {
         return sortedModels
     }
 
-    public static func download(variant: String, downloadBase: URL? = nil, from repo: String = "argmaxinc/whisperkit-coreml", progressCallback: ((Progress) -> Void)? = nil) async throws -> URL? {
-        let hubApi = HubApi(downloadBase: downloadBase)
+    public static func download(
+        variant: String,
+        downloadBase: URL? = nil,
+        useBackgroundSession: Bool = false,
+        from repo: String = "argmaxinc/whisperkit-coreml",
+        progressCallback: ((Progress) -> Void)? = nil
+    ) async throws -> URL? {
+        let hubApi = HubApi(downloadBase: downloadBase, useBackgroundSession: useBackgroundSession)
         let repo = Hub.Repo(id: repo, type: .models)
         do {
             let modelFolder = try await hubApi.snapshot(from: repo, matching: ["*\(variant.description)/*"]) { progress in
@@ -191,7 +203,13 @@ public class WhisperKit: Transcriber {
     }
 
     /// Sets up the model folder either from a local path or by downloading from a repository.
-    public func setupModels(model: String?, downloadBase: URL? = nil, modelRepo: String?, modelFolder: String?, download: Bool) async throws {
+    public func setupModels(
+        model: String?,
+        downloadBase: URL? = nil,
+        modelRepo: String?,
+        modelFolder: String?,
+        download: Bool
+    ) async throws {
         // Determine the model variant to use
         let modelVariant = model ?? WhisperKit.recommendedModels().default
 
@@ -201,7 +219,12 @@ public class WhisperKit: Transcriber {
         } else if download {
             let repo = modelRepo ?? "argmaxinc/whisperkit-coreml"
             do {
-                let hubModelFolder = try await Self.download(variant: modelVariant, downloadBase: downloadBase, from: repo)
+                let hubModelFolder = try await Self.download(
+                    variant: modelVariant,
+                    downloadBase: downloadBase,
+                    useBackgroundSession: useBackgroundDownloadSession,
+                    from: repo
+                )
                 self.modelFolder = hubModelFolder!
             } catch {
                 // Handle errors related to model downloading
@@ -217,7 +240,9 @@ public class WhisperKit: Transcriber {
         try await loadModels(prewarmMode: true)
     }
 
-    public func loadModels(prewarmMode: Bool = false) async throws {
+    public func loadModels(
+        prewarmMode: Bool = false
+    ) async throws {
         modelState = prewarmMode ? .prewarming : .loading
 
         let modelLoadStart = CFAbsoluteTimeGetCurrent()
@@ -292,7 +317,11 @@ public class WhisperKit: Transcriber {
         {
             modelVariant = detectVariant(logitsDim: logitsDim, encoderDim: encoderDim)
             Logging.debug("Loading tokenizer for \(modelVariant)")
-            tokenizer = try await loadTokenizer(for: modelVariant, tokenizerFolder: tokenizerFolder)
+            tokenizer = try await loadTokenizer(
+                for: modelVariant,
+                tokenizerFolder: tokenizerFolder,
+                useBackgroundSession: useBackgroundDownloadSession
+            )
             textDecoder.tokenizer = tokenizer
             Logging.debug("Loaded tokenizer")
         } else {

Sources/WhisperKitCLI/Transcribe.swift

@@ -12,7 +12,7 @@ struct Transcribe: AsyncParsableCommand {
         abstract: "Transcribe audio to text using WhisperKit"
     )
 
-    @OptionGroup 
+    @OptionGroup
     var cliArguments: CLIArguments
 
     mutating func run() async throws {
@@ -36,32 +36,39 @@ struct Transcribe: AsyncParsableCommand {
             audioEncoderCompute: cliArguments.audioEncoderComputeUnits.asMLComputeUnits,
             textDecoderCompute: cliArguments.textDecoderComputeUnits.asMLComputeUnits
         )
-        
+
         let downloadTokenizerFolder: URL? =
             if let filePath = cliArguments.downloadTokenizerPath {
                 URL(filePath: filePath)
             } else {
                 nil
             }
-        
+
         let downloadModelFolder: URL? =
             if let filePath = cliArguments.downloadModelPath {
                 URL(filePath: filePath)
             } else {
                 nil
             }
 
-        print("Initializing models...")
+        if cliArguments.verbose {
+            print("Initializing models...")
+        }
+
         let whisperKit = try await WhisperKit(
             model: cliArguments.model,
             downloadBase: downloadModelFolder,
             modelFolder: cliArguments.modelPath,
             tokenizerFolder: downloadTokenizerFolder,
             computeOptions: computeOptions,
             verbose: cliArguments.verbose,
-            logLevel: .debug
+            logLevel: .debug,
+            useBackgroundDownloadSession: false
         )
-        print("Models initialized")
+
+        if cliArguments.verbose {
+            print("Models initialized")
+        }
 
         let options = DecodingOptions(
             verbose: cliArguments.verbose,
@@ -83,7 +90,7 @@ struct Transcribe: AsyncParsableCommand {
         )
 
         let transcribeResult = try await whisperKit.transcribe(
-            audioPath: resolvedAudioPath, 
+            audioPath: resolvedAudioPath,
             decodeOptions: options
         )
 
@@ -136,26 +143,32 @@ struct Transcribe: AsyncParsableCommand {
             } else {
                 nil
             }
-        
+
         let downloadModelFolder: URL? =
             if let filePath = cliArguments.downloadModelPath {
                 URL(filePath: filePath)
             } else {
                 nil
             }
 
-        print("Initializing models...")
+        if cliArguments.verbose {
+            print("Initializing models...")
+        }
+
         let whisperKit = try await WhisperKit(
             model: cliArguments.model,
             downloadBase: downloadModelFolder,
             modelFolder: cliArguments.modelPath,
             tokenizerFolder: downloadTokenizerFolder,
             computeOptions: computeOptions,
             verbose: cliArguments.verbose,
-            logLevel: .debug
+            logLevel: .debug,
+            useBackgroundDownloadSession: false
         )
-        print("Models initialized")
 
+        if cliArguments.verbose {
+            print("Models initialized")
+        }
         let decodingOptions = DecodingOptions(
             verbose: cliArguments.verbose,
             task: .transcribe,