Bun vscode extension breaks "javascript debug terminal" for node

[ulugbekna]

What version of Bun is running?

1.1.18

What platform is your computer?

Darwin 24.1.0 arm64 arm

What steps can reproduce the bug?

0. Have Bun vscode extension installed
1. Open command palette (cmd+shift+p or F1) and invoke command "debug: javascript debug terminal"
2. In the newly opened javascript debug terminal, run node and see how debugger cannot attach to the process

What is the expected behavior?

Javascript debug terminal can attach to a new node process

What do you see instead?

Javascript debug terminal cannot attach to a new node process

Additional information

This's the cause of the problem -

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

Lines 95 to 132 in d5a118e

	async function injectDebugTerminal(terminal: vscode.Terminal): Promise<void> {
	if (!getConfig("debugTerminal.enabled")) return;
	const { name, creationOptions } = terminal;
	if (name !== "JavaScript Debug Terminal") {
	return;
	}
	const { env } = creationOptions as vscode.TerminalOptions;
	if (env["BUN_INSPECT"]) {
	return;
	}
	const stopOnEntry = getConfig("debugTerminal.stopOnEntry") === true;
	const query = stopOnEntry ? "break=1" : "wait=1";
	const debugSession = new TerminalDebugSession();
	await debugSession.initialize();
	const { adapter, signal } = debugSession;
	const debug = vscode.window.createTerminal({
	...creationOptions,
	name: "JavaScript Debug Terminal",
	env: {
	...env,
	"BUN_INSPECT": `${adapter.url}?${query}`,
	"BUN_INSPECT_NOTIFY": signal.url,
	},
	});
	debug.show();
	// If the terminal is disposed too early, it will show a
	// "Terminal has already been disposed" error prompt in the UI.
	// Until a proper fix is found, we can just wait a bit before
	// disposing the terminal.
	setTimeout(() => terminal.dispose(), 100);
	}

.

@connor4312 (from the vscode team, who works on debugging experience) would be happy to add some simple metadata to JS debug terminal environment to make Bun debugging work well.

[connor4312]

This happens because js-debug creates a unix socket / named pipe server that will listen until the associated terminal is closed, and Bun closing the terminal make the server shut down.

[Electroid]

We'd love so that both Node and Bun work in the JavaScript debugger, are there any suggestions from the VSCode team on the canonical way to make this work?