Move `ArgParser.ParseArguments` call to Program, replacing config hack

src/BizHawk.Client.Common/ArgParser.cs

@@ -21,7 +21,6 @@ namespace BizHawk.Client.Common
 		{
 			string? cmdLoadSlot = null;
 			string? cmdLoadState = null;
-			string? cmdConfigPath = null;
 			string? cmdConfigFile = null;
 			string? cmdMovie = null;
 			string? cmdDumpType = null;
@@ -182,7 +181,6 @@ namespace BizHawk.Client.Common
 			parsed = new ParsedCLIFlags(
 				cmdLoadSlot: cmdLoadSlot,
 				cmdLoadState: cmdLoadState,
-				cmdConfigPath: cmdConfigPath,
 				cmdConfigFile: cmdConfigFile,
 				cmdMovie: cmdMovie,
 				cmdDumpType: cmdDumpType,
@@ -204,11 +202,6 @@ namespace BizHawk.Client.Common
 			);
 		}
 
-		public static string? GetCmdConfigFile(string[] args)
-		{
-			return args.FirstOrDefault(arg => arg.StartsWith("--config=", StringComparison.InvariantCultureIgnoreCase))?.Substring(9);
-		}
-
 		public sealed class ArgParserException : Exception
 		{
 			public ArgParserException(string message) : base(message) {}

src/BizHawk.Client.Common/ParsedCLIFlags.cs

@@ -10,8 +10,6 @@ namespace BizHawk.Client.Common
 
 		public readonly string? cmdLoadState;
 
-		public readonly string? cmdConfigPath;
-
 		public readonly string? cmdConfigFile;
 
 		public readonly string? cmdMovie;
@@ -50,7 +48,6 @@ namespace BizHawk.Client.Common
 
 		public ParsedCLIFlags(string? cmdLoadSlot,
 			string? cmdLoadState,
-			string? cmdConfigPath,
 			string? cmdConfigFile,
 			string? cmdMovie,
 			string? cmdDumpType,
@@ -72,7 +69,6 @@ namespace BizHawk.Client.Common
 		{
 			this.cmdLoadSlot = cmdLoadSlot;
 			this.cmdLoadState = cmdLoadState;
-			this.cmdConfigPath = cmdConfigPath;
 			this.cmdConfigFile = cmdConfigFile;
 			this.cmdMovie = cmdMovie;
 			this.cmdDumpType = cmdDumpType;

src/BizHawk.Client.EmuHawk/MainForm.cs

@@ -281,7 +281,13 @@ namespace BizHawk.Client.EmuHawk
 			CloseRomContextMenuItem.Image = Properties.Resources.Close;
 		}
 
-		public MainForm(Config config, IGL gl, Action<Sound> updateGlobalSound, string[] args, out IMovieSession movieSession)
+		public MainForm(
+			ParsedCLIFlags cliFlags,
+			Config config,
+			IGL gl,
+			Action<Sound> updateGlobalSound,
+			string[] args,
+			out IMovieSession movieSession)
 		{
 			movieSession = null;
 
@@ -298,6 +304,7 @@ namespace BizHawk.Client.EmuHawk
 			Database.InitializeDatabase(Path.Combine(PathUtils.ExeDirectoryPath, "gamedb", "gamedb.txt"), silent: true);
 			BootGodDb.Initialize(Path.Combine(PathUtils.ExeDirectoryPath, "gamedb"));
 
+			_argParser = cliFlags;
 			Config = config;
 			GL = gl;
 			_updateGlobalSound = updateGlobalSound;
@@ -361,15 +368,6 @@ namespace BizHawk.Client.EmuHawk
 			UpdateStatusSlots();
 			UpdateKeyPriorityIcon();
 
-			try
-			{
-				ArgParser.ParseArguments(out _argParser, args);
-			}
-			catch (ArgParser.ArgParserException e)
-			{
-				ShowMessageBox(owner: null, e.Message);
-			}
-
 			// TODO GL - a lot of disorganized wiring-up here
 			// installed separately on Unix (via package manager or from https://developer.nvidia.com/cg-toolkit-download), look in $PATH
 			_presentationPanel = new PresentationPanel(

src/BizHawk.Client.EmuHawk/Program.cs

@@ -120,8 +120,17 @@ namespace BizHawk.Client.EmuHawk
 
 			HawkFile.DearchivalMethod = SharpCompressDearchivalMethod.Instance;
 
-			string cmdConfigFile = ArgParser.GetCmdConfigFile(args);
-			if (cmdConfigFile != null) Config.SetDefaultIniPath(cmdConfigFile);
+			ParsedCLIFlags cliFlags = default;
+			try
+			{
+				ArgParser.ParseArguments(out cliFlags, args);
+			}
+			catch (ArgParser.ArgParserException e)
+			{
+				new ExceptionBox(e.Message).ShowDialog();
+			}
+
+			if (cliFlags.cmdConfigFile != null) Config.SetDefaultIniPath(cliFlags.cmdConfigFile);
 
 			Config initialConfig;
 			try
@@ -224,7 +233,13 @@ namespace BizHawk.Client.EmuHawk
 			var exitCode = 0;
 			try
 			{
-				var mf = new MainForm(initialConfig, workingGL, newSound => globalSound = newSound, args, out var movieSession);
+				MainForm mf = new(
+					cliFlags,
+					initialConfig,
+					workingGL,
+					newSound => globalSound = newSound,
+					args,
+					out var movieSession);
 //				var title = mf.Text;
 				mf.Show();
 //				mf.Text = title;