Fix desktop exception

Author: abnegate

templates/swift/Sources/PackageInfo/Linux/PackageInfo+Linux.swift

@@ -6,19 +6,18 @@ extension PackageInfo {
         let version = getVersionJson()
 
         return PackageInfo(
-            appName: version["app_name"] as! String,
-            version: version["version"] as! String,
-            buildNumber: version["build_number"] as! String,
-            packageName: "",
-            buildSignature: ""
+            appName: version?["appName"] as? String ?? "",
+            version: version?["version"] as? String ?? "",
+            buildNumber: version?["buildNumber"] as? String ?? "",
+            packageName: version?["packageName"] as? String ?? "",
+            buildSignature: version?["buildSignature"] as? String ?? ""
         )
     }
 
-    private static func getVersionJson() -> [String: Any] {
+    private static func getVersionJson() -> [String: Any]? {
         let exePath = URL(fileURLWithPath: "/proc/self/exe").resolvingSymlinksInPath()
         let appPath = exePath.deletingLastPathComponent()
         let jsonPath = appPath.appendingPathComponent("version.json")
-        return try! JSONSerialization
-            .jsonObject(with: Data(contentsOf: jsonPath)) as! [String: Any]
+        return try? JSONSerialization.jsonObject(with: Data(contentsOf: jsonPath)) as? [String: Any]
     }
 }

templates/swift/Sources/PackageInfo/Windows/PackageInfo+Windows.swift

@@ -1,13 +1,22 @@
 import Foundation
 
-class WindowsPackageInfo : PackageInfo {
+extension PackageInfo {
 
     public static func getWindowsPackage() -> PackageInfo {
-        return WindowsPackageInfo(
-            appName: "",
-            version: "",
-            buildNumber: "",
-            packageName: ""
+        let version = getVersionJson()
+        return PackageInfo(
+            appName: version?["appName"] as? String ?? "",
+            version: version?["version"] as? String ?? "",
+            buildNumber: version?["buildNumber"] as? String ?? "",
+            packageName: version?["packageName"] as? String ?? "",
+            buildSignature: version?["buildSignature"] as? String ?? ""
         )
     }
+
+    private static func getVersionJson() -> [String: Any]? {
+        let exePath = URL(fileURLWithPath: "/proc/self/exe").resolvingSymlinksInPath()
+        let appPath = exePath.deletingLastPathComponent()
+        let jsonPath = appPath.appendingPathComponent("version.json")
+        return try? JSONSerialization.jsonObject(with: Data(contentsOf: jsonPath)) as? [String: Any]
+    }
 }