Adopt Async APIs (#98)

* Bump dependencies and drop 5.8

* Adopt new APIs

* Fix Swift 6 warning

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:5.8
+// swift-tools-version:5.9
 import PackageDescription
 
 let package = Package(
@@ -13,7 +13,7 @@ let package = Package(
         .library(name: "FluentSQLiteDriver", targets: ["FluentSQLiteDriver"]),
     ],
     dependencies: [
-        .package(url: "https://github.com/vapor/fluent-kit.git", from: "1.48.4"),
+        .package(url: "https://github.com/vapor/fluent-kit.git", from: "1.49.0"),
         .package(url: "https://github.com/vapor/sqlite-kit.git", from: "4.5.1"),
         .package(url: "https://github.com/apple/swift-log.git", from: "1.5.4"),
     ],
@@ -40,6 +40,9 @@ let package = Package(
 )
 
 var swiftSettings: [SwiftSetting] { [
+    .enableUpcomingFeature("ExistentialAny"),
     .enableUpcomingFeature("ConciseMagicFile"),
     .enableUpcomingFeature("ForwardTrailingClosures"),
+    .enableUpcomingFeature("DisableOutwardActorInference"),
+    .enableExperimentalFeature("StrictConcurrency=complete"),
 ] }

Sources/FluentSQLiteDriver/FluentSQLiteDriver.swift

@@ -29,6 +29,10 @@ struct FluentSQLiteDriver: DatabaseDriver {
     func shutdown() {
         try? self.pool.syncShutdownGracefully()
     }
+
+    func shutdownAsync() async {
+        try? await self.pool.shutdownAsync()
+    }
 }
 
 struct ConnectionPoolSQLiteDatabase: SQLiteDatabase {

Sources/FluentSQLiteDriver/SQLiteError+Database.swift

@@ -1,7 +1,8 @@
 import SQLiteNIO
 import FluentKit
 
-extension SQLiteError: DatabaseError {
+// Required for Database Error
+extension SQLiteError {
     public var isSyntaxError: Bool {
         switch self.reason {
         case .error, .schema:
@@ -32,3 +33,9 @@ extension SQLiteError: DatabaseError {
         }
     }
 }
+
+#if compiler(<6)
+extension SQLiteError: DatabaseError { }
+#else
+extension SQLiteError: @retroactive DatabaseError { }
+#endif

Tests/FluentSQLiteDriverTests/FluentSQLiteDriverTests.swift

@@ -218,11 +218,11 @@ final class FluentSQLiteDriverTests: XCTestCase {
         self.dbs.use(.sqlite(.file(self.benchmarkPath)), as: .init(string: "benchmark"))
         self.database = self.dbs.database(.sqlite, logger: .init(label: "test.fluent.sqlite"), on: MultiThreadedEventLoopGroup.singleton.any())
     }
-
-    override func tearDownWithError() throws {
-        self.dbs.shutdown()
+    
+    override func tearDown() async throws {
+        await self.dbs.shutdownAsync()
         self.dbs = nil
-        try super.tearDownWithError()
+        try await super.tearDown()
     }
 }