Make app groups work on both iOS and macOS

WireGuard/Shared/FileManager+Extension.swift

@@ -6,7 +6,12 @@ import os.log
 
 extension FileManager {
     private static var sharedFolderURL: URL? {
-        guard let appGroupId = Bundle.main.object(forInfoDictionaryKey: "com.wireguard.ios.app_group_id") as? String else {
+        #if os(iOS)
+        let appGroupIdInfoDictionaryKey = "com.wireguard.ios.app_group_id"
+        #elseif os(OSX)
+        let appGroupIdInfoDictionaryKey = "com.wireguard.macos.app_group_id"
+        #endif
+        guard let appGroupId = Bundle.main.object(forInfoDictionaryKey: appGroupIdInfoDictionaryKey) as? String else {
             os_log("Cannot obtain app group ID from bundle", log: OSLog.default, type: .error)
             return nil
         }

WireGuard/WireGuard.xcodeproj/project.pbxproj

@@ -689,6 +689,9 @@
 					6FB1BD5C21D2607A00A991BF = {
 						CreatedOnToolsVersion = 10.1;
 						SystemCapabilities = {
+							com.apple.ApplicationGroups.Mac = {
+								enabled = 1;
+							};
 							com.apple.NetworkExtensions = {
 								enabled = 1;
 							};
@@ -696,6 +699,11 @@
 					};
 					6FB1BD9021D4BFE600A991BF = {
 						CreatedOnToolsVersion = 10.1;
+						SystemCapabilities = {
+							com.apple.ApplicationGroups.Mac = {
+								enabled = 1;
+							};
+						};
 					};
 					6FDEF7DD21846BC100D8FBF6 = {
 						CreatedOnToolsVersion = 10.0;

WireGuard/WireGuard/UI/iOS/Info.plist

@@ -123,6 +123,6 @@
 		</dict>
 	</array>
 	<key>com.wireguard.ios.app_group_id</key>
-    <string>group.$(APP_ID_IOS)</string>
+	<string>group.$(APP_ID_IOS)</string>
 </dict>
 </plist>

WireGuard/WireGuard/UI/macOS/Info.plist

@@ -28,5 +28,7 @@
 	<string>MainMenu</string>
 	<key>NSPrincipalClass</key>
 	<string>NSApplication</string>
+	<key>com.wireguard.macos.app_group_id</key>
+	<string>$(DEVELOPMENT_TEAM).group.$(APP_ID_MACOS)</string>
 </dict>
 </plist>

WireGuard/WireGuard/UI/macOS/WireGuard.entitlements

@@ -8,6 +8,10 @@
 	</array>
 	<key>com.apple.security.app-sandbox</key>
 	<true/>
+	<key>com.apple.security.application-groups</key>
+	<array>
+		<string>$(DEVELOPMENT_TEAM).group.$(APP_ID_MACOS)</string>
+	</array>
 	<key>com.apple.security.files.user-selected.read-only</key>
 	<true/>
 </dict>

WireGuard/WireGuardNetworkExtension/Info.plist

@@ -30,6 +30,8 @@
 		<string>$(PRODUCT_MODULE_NAME).PacketTunnelProvider</string>
 	</dict>
 	<key>com.wireguard.ios.app_group_id</key>
-    <string>group.$(APP_ID_IOS)</string>
+	<string>group.$(APP_ID_IOS)</string>
+	<key>com.wireguard.macos.app_group_id</key>
+	<string>$(DEVELOPMENT_TEAM).group.$(APP_ID_MACOS)</string>
 </dict>
 </plist>

WireGuard/WireGuardNetworkExtension/WireGuardNetworkExtension_macOS.entitlements

@@ -2,11 +2,15 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
-    <key>com.apple.security.app-sandbox</key>
-    <true/>
 	<key>com.apple.developer.networking.networkextension</key>
 	<array>
 		<string>packet-tunnel-provider</string>
 	</array>
+	<key>com.apple.security.app-sandbox</key>
+	<true/>
+	<key>com.apple.security.application-groups</key>
+	<array>
+		<string>$(DEVELOPMENT_TEAM).group.$(APP_ID_MACOS)</string>
+	</array>
 </dict>
 </plist>