feat: Add support for wasm when using in-memory-only sqlite database

Author: scottmarchant

.github/workflows/test.yml

@@ -16,6 +16,8 @@ jobs:
   unit-tests:
     uses: vapor/ci/.github/workflows/run-unit-tests.yml@main
     secrets: inherit
+    with:
+      with_wasm: true
 
   # Make sure downstream dependents still work
   dependents-check:

Package@swift-5.9.swift

@@ -1,6 +1,12 @@
 // swift-tools-version:5.9
 import PackageDescription
 
+/// This list matches the [supported platforms on the Swift 5.10 release of SPM](https://github.com/swiftlang/swift-package-manager/blob/release/5.10/Sources/PackageDescription/SupportedPlatforms.swift#L34-L71)
+/// Don't add new platforms here unless raising the swift-tools-version of this manifest.
+let allPlatforms: [Platform] = [.macOS, .macCatalyst, .iOS, .tvOS, .watchOS, .visionOS, .driverKit, .linux, .windows, .android, .wasi, .openbsd]
+let nonWASIPlatforms: [Platform] = allPlatforms.filter { $0 != .wasi }
+let wasiPlatform: [Platform] = [.wasi]
+
 let package = Package(
     name: "sqlite-kit",
     platforms: [
@@ -13,16 +19,23 @@ let package = Package(
         .library(name: "SQLiteKit", targets: ["SQLiteKit"]),
     ],
     dependencies: [
-        .package(url: "https://github.com/apple/swift-nio.git", from: "2.65.0"),
-        .package(url: "https://github.com/vapor/sqlite-nio.git", from: "1.9.0"),
-        .package(url: "https://github.com/vapor/sql-kit.git", from: "3.29.3"),
-        .package(url: "https://github.com/vapor/async-kit.git", from: "1.19.0"),
+        .package(url: "https://github.com/PassiveLogic/nio-async-runtime.git", from: "1.0.0"),
+        .package(url: "https://github.com/apple/swift-nio.git", from: "2.89.0"),
+
+        // TODO: SM: Update below once everything is merged and release to the proper repositories
+//        .package(url: "https://github.com/vapor/sqlite-nio.git", from: "1.9.0"),
+        .package(url: "https://github.com/PassiveLogic/sqlite-nio.git", branch: "feat/swift-wasm-support-v2"),
+        .package(url: "https://github.com/vapor/sql-kit.git", from: "3.33.1"),
+//        .package(url: "https://github.com/vapor/async-kit.git", from: "1.19.0"),
+        .package(url: "https://github.com/PassiveLogic/async-kit.git", branch: "feat/swift-wasm-support-v2"),
     ],
     targets: [
         .target(
             name: "SQLiteKit",
             dependencies: [
                 .product(name: "NIOFoundationCompat", package: "swift-nio"),
+                .product(name: "NIOAsyncRuntime", package: "nio-async-runtime", condition: .when(platforms: wasiPlatform)),
+                .product(name: "NIOPosix", package: "swift-nio", condition: .when(platforms: nonWASIPlatforms)),
                 .product(name: "AsyncKit", package: "async-kit"),
                 .product(name: "SQLiteNIO", package: "sqlite-nio"),
                 .product(name: "SQLKit", package: "sql-kit"),

Sources/SQLiteKit/SQLiteConnectionSource.swift

@@ -5,7 +5,11 @@ import Foundation
 #endif
 import Logging
 import AsyncKit
+#if canImport(NIOAsyncRuntime)
+import NIOAsyncRuntime
+#elseif canImport(NIOPosix)
 import NIOPosix
+#endif
 import SQLiteNIO
 import NIOCore
 
@@ -16,7 +20,13 @@ public struct SQLiteConnectionSource: ConnectionPoolSource, Sendable {
     private let threadPool: NIOThreadPool
 
     private var connectionStorage: SQLiteConnection.Storage {
+        #if os(WASI)
+        // NOTE: File urls and paths cause runtime errors currently. Currently using
+        // in-memory connection for WASI targets.
+        .memory
+        #else
         .file(path: self.actualURL.absoluteString)
+        #endif
     }
 
     /// Create a new ``SQLiteConnectionSource``.