add debug server port as an optional launch parameter

Author: frals

extension/src/debug.ts

@@ -21,6 +21,7 @@ const { Subject } = require('await-notify');
 interface LaunchRequestArguments extends DebugProtocol.LaunchRequestArguments {
 	stopOnEntry?: boolean;
 	trace?: boolean;
+	port?: number;
 }
 
 interface ASBreakpoint
@@ -41,6 +42,8 @@ export class ASDebugSession extends LoggingDebugSession
 
 	private _configurationDone = new Subject();
 
+	port = 27099;
+
 	/**
 	 * Creates a new debug adapter that is used for one debug session.
 	 * We configure the default implementation of a debug adapter here.
@@ -104,7 +107,7 @@ export class ASDebugSession extends LoggingDebugSession
 		response.body.supportsEvaluateForHovers = true;
 		response.body.supportsExceptionInfoRequest = true;
 
-		unreal.connect();
+		unreal.connect(this.port);
 		unreal.sendRequestBreakFilters();
 
 		this.waitingInitializeResponse = response;
@@ -155,7 +158,7 @@ export class ASDebugSession extends LoggingDebugSession
 		// make sure to 'Stop' the buffered logging if 'trace' is not set
 		logger.setup(args.trace ? Logger.LogLevel.Verbose : Logger.LogLevel.Stop, false);
 
-		unreal.connect();
+		unreal.connect(args.port !== undefined ? args.port : this.port);
 		unreal.sendStartDebugging();
 
 		for (let clientPath of this.breakpoints.keys())

extension/src/extension.ts

@@ -140,6 +140,7 @@ export function activate(context: ExtensionContext) {
 class ASConfigurationProvider implements vscode.DebugConfigurationProvider {
 
 	private _server?: Net.Server;
+	private _config?: DebugConfiguration;
 
 	/**
 	 * Massage a debug configuration just before a debug session is being launched,
@@ -159,22 +160,25 @@ class ASConfigurationProvider implements vscode.DebugConfigurationProvider {
 			}
 		}
 
+		let port = config.port;
 		if (EMBED_DEBUG_ADAPTER) {
 			// start port listener on launch of first debug session
-			if (!this._server) {
-
+			// or if the port changed
+			if (!this._server || (this._server && port != this._config.port)) {
 				// start listening on a random port
 				this._server = Net.createServer(socket => {
 					const session = new ASDebugSession();
 					session.setRunAsServer(true);
+					if (port !== undefined)
+						session.port = port;
 					session.start(<NodeJS.ReadableStream>socket, socket);
 				}).listen(0);
 			}
 
 			// make VS Code connect to debug server instead of launching debug adapter
 			config.debugServer = this._server.address().port;
 		}
-
+		this._config = config;
 		return config;
 	}
 

extension/src/unreal-debugclient.ts

@@ -156,7 +156,7 @@ let unreal : Socket | null = null;
 export let connected = false;
 export let events = new EventEmitter();
 
-export function connect()
+export function connect(port : number)
 {
     if (unreal != null)
     {
@@ -166,7 +166,7 @@ export function connect()
     unreal = new Socket;
     connected = true;
 	//connection.console.log('Connecting to unreal editor...');
-	unreal.connect(28099, "localhost", function()
+	unreal.connect(port, "localhost", function()
 	{
 		//connection.console.log('Connection to unreal editor established.');
 	});

package.json

@@ -65,6 +65,11 @@
                                 "type": "boolean",
                                 "description": "Enable logging of the Debug Adapter Protocol.",
                                 "default": true
+                            },
+                            "port": {
+                                "type": "number",
+                                "description": "Port to AS debug server",
+                                "default:": 28099
                             }
                         }
                     }