fix for windows debug support

packages/bun-debug-adapter-protocol/src/debugger/adapter.ts

@@ -2207,7 +2207,7 @@ function titleize(name: string): string {
 }
 
 function sourcePresentationHint(url?: string): DAP.Source["presentationHint"] {
-  if (!url || path.isAbsolute(url)) {
+  if (!url || !path.isAbsolute(url)) {
     return "deemphasize";
   }
   if (url.includes("/node_modules/") || url.includes("\\node_modules\\")) {
@@ -2222,7 +2222,7 @@ function sourceName(url?: string): string {
   }
   if (isJavaScript(url)) {
     if (process.platform === "win32") {
-      return url.split("\\").pop() || url;
+      url = url.replaceAll("\\", "/");
     }
     return url.split("/").pop() || url;
   }
@@ -2633,6 +2633,10 @@ export function getRandomId() {
   return Math.random().toString(36).slice(2);
 }
 
-export function normalizeWindowsPath(path: string): string {
-  return (path.charAt(0).toUpperCase() + path.slice(1)).replaceAll("\\\\", "\\");
+export function normalizeWindowsPath(winPath: string): string {
+  winPath = path.normalize(winPath);
+  if (winPath[1] === ":" && (winPath[2] === "\\" || winPath[2] === "/")) {
+    return (winPath.charAt(0).toUpperCase() + winPath.slice(1)).replaceAll("\\\\", "\\");
+  }
+  return winPath;
 }

packages/bun-vscode/src/features/debug.ts

@@ -176,19 +176,23 @@ class FileDebugSession extends DebugSession {
   constructor(sessionId?: string) {
     super();
     const uniqueId = sessionId ?? Math.random().toString(36).slice(2);
-    // the signal is only first used well after this resolves
-    getAvailablePort().then(port => {
-      const url = process.platform === "win32" ? `ws://127.0.0.1:${port}/${getRandomId()}` : `ws+unix://${tmpdir()}/${uniqueId}.sock`;
-
-      this.adapter = new DebugAdapter(url);
-      this.adapter.on("Adapter.response", response => this.sendResponse(response));
-      this.adapter.on("Adapter.event", event => this.sendEvent(event));
-      this.adapter.on("Adapter.reverseRequest", ({ command, arguments: args }) =>
-        this.sendRequest(command, args, 5000, () => {}),
-      );
-
-      adapters.set(url, this);
-    });
+    let url;
+    if (process.platform === "win32") {
+      getAvailablePort().then(port => {
+        // the signal is only first used well after this resolves
+        url = `ws://127.0.0.1:${port}/${getRandomId()}`;
+      });
+    } else {
+      url = `ws+unix://${tmpdir()}/${uniqueId}.sock`;
+    }
+    this.adapter = new DebugAdapter(url);
+    this.adapter.on("Adapter.response", response => this.sendResponse(response));
+    this.adapter.on("Adapter.event", event => this.sendEvent(event));
+    this.adapter.on("Adapter.reverseRequest", ({ command, arguments: args }) =>
+      this.sendRequest(command, args, 5000, () => {}),
+    );
+
+    adapters.set(url, this);
   }
 
   handleMessage(message: DAP.Event | DAP.Request | DAP.Response): void {
@@ -211,18 +215,18 @@ class TerminalDebugSession extends FileDebugSession {
 
   constructor() {
     super();
-    // the signal is only first used well after this resolves
-    getAvailablePort().then(port => {
-      if (process.platform === "win32") {
+    if (process.platform === "win32") {
+      getAvailablePort().then(port => {
+        // the signal is only first used well after this resolves
         this.signal = new TCPSocketSignal(port);
-      } else {
-        this.signal = new UnixSignal();
-      }
-      this.signal.on("Signal.received", () => {
-        vscode.debug.startDebugging(undefined, {
-          ...ATTACH_CONFIGURATION,
-          url: this.adapter.url,
-        });
+      });
+    } else {
+      this.signal = new UnixSignal();
+    }
+    this.signal.on("Signal.received", () => {
+      vscode.debug.startDebugging(undefined, {
+        ...ATTACH_CONFIGURATION,
+        url: this.adapter.url,
       });
     });
   }