WireGuardKit: Add swift package scaffolding

Signed-off-by: Andrej Mihajlov <and@mullvad.net>

.gitignore

@@ -31,6 +31,10 @@ xcuserdata
 *.hmap
 *.ipa
 
+# Swift Package Manager
+.swiftpm
+.build/
+
 # Fastlane
 *.app.dSYM.zip
 *.mobileprovision

Package.swift

@@ -0,0 +1,29 @@
+// swift-tools-version:5.3
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "WireGuardKit",
+    platforms: [
+        .macOS(.v10_14),
+        .iOS(.v12)
+    ],
+    products: [
+        .library(name: "WireGuardKit", targets: ["WireGuardKit"])
+    ],
+    dependencies: [],
+    targets: [
+        .target(
+            name: "WireGuardKit",
+            dependencies: ["libwg-go"],
+            path: "WireGuardKit/Sources/WireGuardKit"
+        ),
+        .target(
+            name: "libwg-go",
+            dependencies: [],
+            path: "WireGuardKit/Sources/libwg-go",
+            linkerSettings: [.linkedLibrary("wg-go")]
+        )
+    ]
+)

WireGuardKit/Sources/WireGuardKit/WireGuardKit.swift

@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: MIT
+// Copyright © 2018-2019 WireGuard LLC. All Rights Reserved.
+
+import Foundation
+import libwg_go
+
+public func getWireGuardVersion() -> String {
+    return String(cString: wgVersion()!)
+}

WireGuardKit/Sources/libwg-go/dummy.c

@@ -0,0 +1 @@
+// Empty

WireGuardKit/Sources/libwg-go/include/libwg_go.h

@@ -0,0 +1 @@
+#include "../../../../wireguard-go-bridge/wireguard.h"

WireGuardKit/Sources/libwg-go/module.modulemap

@@ -0,0 +1,5 @@
+module libwg_go {
+    umbrella header "include/libwg_go.h"
+    link "wg-go"
+    export *
+}