Update README for 2.0 (#45)

Also remove some unnecessary code

Package.swift

@@ -31,11 +31,20 @@ let package = Package(
         .package(url: "https://github.com/apple/swift-log.git", from: "1.4.0")
     ],
     targets: [
-        .target(name: "SotoS3FileTransfer", dependencies: [
-            .product(name: "SotoS3", package: "soto"),
-            .product(name: "Atomics", package: "swift-atomics"),
-            .product(name: "Logging", package: "swift-log"),
-        ], swiftSettings: swiftSettings),
-        .testTarget(name: "SotoS3FileTransferTests", dependencies: ["SotoS3FileTransfer"]),
+        .target(
+            name: "SotoS3FileTransfer",
+            dependencies: [
+                .product(name: "SotoS3", package: "soto"),
+                .product(name: "Logging", package: "swift-log"),
+            ],
+            swiftSettings: swiftSettings
+        ),
+        .testTarget(
+            name: "SotoS3FileTransferTests",
+            dependencies: [
+                "SotoS3FileTransfer",
+                .product(name: "Atomics", package: "swift-atomics"),
+            ]
+        ),
     ]
 )

README.md

@@ -7,27 +7,23 @@ Make uploading and downloading of files to AWS S3 easy.
 Soto S3 Transfer uses the Soto Swift SDK for AWS. You need to create a Soto S3 service object before you can use the S3 transfer manager. See Soto [documentation](https://github.com/soto-project/soto) for more guidance. You also need to supply the `threadPoolProvider` parameter which indicates where Soto S3 Transfer will get threads from to run the file loading and saving. 
 
 ```swift
-let client = AWSClient(httpClientProvider: .createNew)
+let client = AWSClient()
 let s3 = S3(client: client, region: .euwest1)
-let s3FileTransfer = S3FileTransferManager(s3: s3, threadPoolProvider: .singleton)
+let s3FileTransfer = S3FileTransferManager(s3: s3)
 ```
 
-## Shutdown
-
-Because `S3FileTransferManager` can hold a thread pool that requires explicit shutdown, it also requires explicit shutdown. Before the manager is deleted you need to call `S3FileTransferManager.syncShutdown` to ensure the thread pool has been shutdown correctly.
-
 ## Upload to S3
 
-Uploading files to S3 is done with one call. The call returns a [NIO](https://github.com/apple/swift-nio) EventLoopFuture which will be fulfilled with the response when the operation is finished.
+Uploading files to S3 is done with one call. 
 ```swift
-let uploadFuture = s3FileTransfer.copy(
+try await s3FileTransfer.copy(
     from: "/Users/me/images/test.jpg", 
     to: S3File(url: "s3://my-bucket/test.jpg")!
 )
 ```
 You can also upload a folder as follows
 ```swift
-let uploadFuture = s3FileTransfer.copy(
+try await s3FileTransfer.copy(
     from: "/Users/me/images/", 
     to: S3Folder(url: "s3://my-bucket/images/")!
 )
@@ -36,19 +32,18 @@ If you are uploading a folder multiple files will be uploaded in parallel. The n
 ```swift
 let s3Transfer = S3FileTransferManager(
     s3: s3, 
-    threadPoolProvider: .singleton,
     configuration: .init(maxConcurrentTasks: 8)
 )
 ```
 ## Download from S3
 
 Download is as simple as upload just swap the parameters around
 ```swift
-let downloadFuture = s3FileTransfer.copy(
+try await s3FileTransfer.copy(
     from: S3File(url: "s3://my-bucket/test.jpg")!, 
     to: "/Users/me/images/test.jpg"
 )
-let downloadFolderFuture = s3FileTransfer.copy(
+try await s3FileTransfer.copy(
     from: S3Folder(url: "s3://my-bucket/images/")!, 
     to: "/Users/me/downloads/images/"
 )
@@ -58,27 +53,27 @@ let downloadFolderFuture = s3FileTransfer.copy(
 
 You can also copy from one S3 bucket to another by supplying two `S3Files` or two `S3Folders`
 ```swift
-let copyFuture = s3FileTransfer.copy(
+try await s3FileTransfer.copy(
     from: S3File(url: "s3://my-bucket/test2.jpg")!, 
     to: S3File(url: "s3://my-bucket/test.jpg")!
 )
-let copyFolderFuture = s3FileTransfer.copy(
+try await s3FileTransfer.copy(
     from: S3Folder(url: "s3://my-bucket/images/")!, 
     to: S3Folder(url: "s3://my-other-bucket/images/")!)
 )
 ```
 
 ## Sync operations
 
-There are `sync` versions of these operations as well. This will only copy files across if they are newer than the existing files. You can also have it delete files  in the target folder if they don't exist in the source folder.
+There are `sync` versions of these operations as well. This will only copy files across if they are newer than the existing files. You can also have it delete files in the target folder if they don't exist in the source folder.
 
 ```swift
-let uploadSyncFuture = s3FileTransfer.sync(
+try await s3FileTransfer.sync(
     from: "/Users/me/images/", 
     to: S3Folder(url: "s3://my-bucket/images")!,
     delete: true
 )
-let downloadFuture = s3FileTransfer.copy(
+try await s3FileTransfer.sync(
     from: S3Folder(url: "s3://my-bucket/images")!, 
     to: "/Users/me/downloads/images/",
     delete: false
@@ -91,7 +86,6 @@ If uploads are above a certain size then the transfer manager will use multipart
 ```swift
 let s3Transfer = S3FileTransferManager(
     s3: s3, 
-    threadPoolProvider: .singleton,
     configuration: .init(multipartThreshold: 16*1024*1024, multipartPartSize: 16*1024*1024)
 )
 ```

Sources/SotoS3FileTransfer/S3FileTransferManager.swift

@@ -12,7 +12,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-import Atomics
 import Foundation
 import Logging
 import NIOConcurrencyHelpers
@@ -94,8 +93,6 @@ public final class S3FileTransferManager: Sendable {
     public let configuration: Configuration
     /// Logger
     public let logger: Logger
-    /// Have we shutdown the Manager
-    let isShutdown = ManagedAtomic(false) // <Bool>.makeAtomic(value: false)
 
     /// Initialize S3 Transfer manager.
     /// - Parameters: