Enhance debugger attachment requests (#2431)

* Allow specifying debugSocketPath for attach requests

* Support attaching to debugger with host and port

Author: st0012

vscode/package.json

@@ -486,7 +486,22 @@
               }
             }
           },
-          "attach": {}
+          "attach": {
+            "properties": {
+              "debugSocketPath": {
+                "type": "string",
+                "description": "The path to the debug socket. This is used to connect to the debugger"
+              },
+              "debugPort": {
+                "type": "number",
+                "description": "The port to use to connect to the debugger"
+              },
+              "debugHost": {
+                "type": "string",
+                "description": "The host to use to connect to the debugger"
+              }
+            }
+          }
         },
         "configurationSnippets": [
           {

vscode/src/debugger.ts

@@ -161,6 +161,13 @@ export class Debugger
 
   private async getSockets(session: vscode.DebugSession) {
     const configuration = session.configuration;
+
+    const debugSocketPath = session.configuration.debugSocketPath;
+
+    if (debugSocketPath) {
+      return [debugSocketPath];
+    }
+
     let sockets: string[] = [];
 
     try {
@@ -182,6 +189,18 @@ export class Debugger
   private async attachDebuggee(
     session: vscode.DebugSession,
   ): Promise<vscode.DebugAdapterDescriptor> {
+    const debugPort = session.configuration.debugPort;
+
+    if (debugPort) {
+      const debugHost = session.configuration.debugHost;
+
+      if (debugHost) {
+        return new vscode.DebugAdapterServer(debugPort, debugHost);
+      }
+
+      return new vscode.DebugAdapterServer(debugPort);
+    }
+
     // When using attach, a process will be launched using Ruby debug and it will create a socket automatically. We have
     // to find the available sockets and ask the user which one they want to attach to
     const sockets = await this.getSockets(session);