Have a single utility app per platform. Route zip extraction and ra package install to the .net utility app under osx.

OpenRA.Game/Game.cs

@@ -229,7 +229,7 @@ namespace OpenRA
 			SupportDir = args.GetValue("SupportDir", defaultSupport);
 			FileSystem.SpecialPackageRoot = args.GetValue("SpecialPackageRoot", "");
 			
-			Utilities = new Utilities(args.GetValue("NativeUtilityPath", "."));
+			Utilities = new Utilities(args.GetValue("UtilityPath", "OpenRA.Utility.exe"));
 			
 			Settings = new Settings(SupportDir + "settings.yaml", args);
 			Settings.Save();

OpenRA.Game/Utilities.cs

@@ -16,35 +16,34 @@ namespace OpenRA
 {
 	public class Utilities
 	{
-		readonly string NativeUtility;
-		readonly string Utility = "OpenRA.Utility.exe";
+		readonly string Utility;
 		
-		public Utilities(string nativeUtility)
+		public Utilities(string utility)
 		{
-			NativeUtility = nativeUtility;
+			Utility = utility;
 		}
 	
 		public void ExtractZipAsync(string zipFile, string path, Action<string> parseOutput, Action onComplete)
 		{
-			ExecuteUtilityAsync(Utility, "\"--extract-zip={0},{1}\"".F(zipFile, path), parseOutput, onComplete);
+			ExecuteUtilityAsync("\"--extract-zip {0} {1}\"".F(zipFile, path), parseOutput, onComplete);
 		}
 		
 		public void InstallRAFilesAsync(string cdPath, Action<string> parseOutput, Action onComplete)
 		{
-			ExecuteUtilityAsync(Utility, "\"--install-ra-packages={0}\"".F(cdPath), parseOutput, onComplete);
+			ExecuteUtilityAsync("\"--install-ra-packages {0}\"".F(cdPath), parseOutput, onComplete);
 		}
 		
 		public void PromptFilepathAsync(string title, string message, bool directory, Action<string> withPath)
 		{
-			ExecuteUtility(NativeUtility,
-			               "--filepicker --title \"{0}\" --message \"{1}\" {2} --button-text \"Select\"".F(title, message, directory ? "--require-directory" : ""),
+			ExecuteUtility("--display-filepicker --title \"{0}\" --message \"{1}\" {2} --button-text \"Select\""
+			               .F(title, message, directory ? "--require-directory" : ""),
 			               withPath);
 		}
 	
-		void ExecuteUtility(string executable, string args, Action<string> onComplete)
+		void ExecuteUtility(string args, Action<string> onComplete)
 		{
 			Process p = new Process();
-			p.StartInfo.FileName = executable;
+			p.StartInfo.FileName = Utility;
 			p.StartInfo.Arguments = args;
 			p.StartInfo.UseShellExecute = false;
 			p.StartInfo.CreateNoWindow = true;
@@ -57,10 +56,10 @@ namespace OpenRA
 			p.Start();
 		}
 		
-		void ExecuteUtilityAsync(string executable, string args, Action<string> parseOutput, Action onComplete)
+		void ExecuteUtilityAsync(string args, Action<string> parseOutput, Action onComplete)
 		{
 			Process p = new Process();
-			p.StartInfo.FileName = executable;
+			p.StartInfo.FileName = Utility;
 			p.StartInfo.Arguments = args;
 			p.StartInfo.UseShellExecute = false;
 			p.StartInfo.CreateNoWindow = true;

OpenRA.Launcher.Mac/Controller.h

@@ -16,6 +16,10 @@
 	IBOutlet NSWindow *window;
 }
 - (void)launchFilePicker:(NSArray *)args;
+- (void)extractZip:(NSArray *)args;
+- (void)installRaPackages:(NSArray *)args;
 - (void)launchMod:(NSString *)mod;
 - (BOOL)initMono;
+- (void)runUtilityWithArg:(NSString *)arg;
+- (void)utilityResponded:(NSNotification *)n;
 @end

OpenRA.Launcher.Mac/Controller.m

@@ -23,7 +23,7 @@
 	NSArray *args = [[NSProcessInfo processInfo] arguments];
 	
 	// Ingame requests for native dialogs
-	if ([args containsObject:@"--filepicker"])
+	if ([args containsObject:@"--display-filepicker"])
 		[self launchFilePicker:args];
 	
 
@@ -42,10 +42,29 @@
 		[[NSApplication sharedApplication] terminate:self];
 	}
 	
+	// Extract a zip file
+	if ([args containsObject:@"--extract-zip"])
+		[self extractZip:args];
+	
+	// Install ra packages from cd
+	if ([args containsObject:@"--install-ra-packages"])
+		[self installRaPackages:args];
+	
+	
 	[self launchMod:@"cnc"];
 	[NSApp terminate: nil];
 }
 
+- (void)extractZip:(NSArray *)args
+{
+	[self runUtilityWithArg:[NSString stringWithFormat:@"--extract-zip=%@,%@",[args objectAtIndex:2],[args objectAtIndex:3]]];
+}
+
+- (void)installRaPackages:(NSArray *)args
+{
+	[self runUtilityWithArg:[NSString stringWithFormat:@"--install-ra-packages=%@",[args objectAtIndex:2]]];
+}
+
 - (void)launchFilePicker:(NSArray *)args
 {
 	[NSApp activateIgnoringOtherApps:YES];
@@ -169,6 +188,46 @@
 			(major == 2 && minor == 6 && point >= 7));
 }
 
+
+- (void)runUtilityWithArg:(NSString *)arg
+{
+	NSTask *task = [[[NSTask alloc] init] autorelease];
+	NSPipe *pipe = [NSPipe pipe];
+	
+    NSMutableArray *taskArgs = [NSMutableArray arrayWithObject:@"OpenRA.Utility.exe"];
+	[taskArgs addObject:arg];
+		
+    [task setCurrentDirectoryPath:gamePath];
+    [task setLaunchPath:monoPath];
+    [task setArguments:taskArgs];
+	[task setStandardOutput:pipe];
+	
+	NSFileHandle *readHandle = [pipe fileHandleForReading];
+	NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
+	[nc addObserver:self
+		   selector:@selector(utilityResponded:)
+			   name:NSFileHandleReadCompletionNotification
+			 object:readHandle];
+    [task launch];
+	[readHandle readInBackgroundAndNotify];
+	[task waitUntilExit];
+	
+	[nc removeObserver:self name:NSFileHandleReadCompletionNotification object:[[task standardOutput] fileHandleForReading]];
+	[nc removeObserver:self name:NSTaskDidTerminateNotification object:task];
+}
+
+- (void)utilityResponded:(NSNotification *)n
+{
+	NSData *data = [[n userInfo] valueForKey:NSFileHandleNotificationDataItem];
+	NSString *response = [[[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding] autorelease];
+	printf("%s", [response UTF8String]);
+	
+	// Keep reading
+	if ([n object] != nil)
+		[[n object] readInBackgroundAndNotify];
+}
+
+
 - (void)dealloc
 {
 	[monoPath release]; monoPath = nil;