Open OAuth login URLs during setup

src/system/open-url.ts

@@ -0,0 +1,51 @@
+import { spawn } from "node:child_process";
+
+import { resolveExecutable } from "./executables.js";
+
+type ResolveExecutableFn = (name: string, fallbackPaths?: string[]) => string | undefined;
+
+type OpenUrlCommand = {
+	command: string;
+	args: string[];
+};
+
+export function getOpenUrlCommand(
+	url: string,
+	platform = process.platform,
+	resolveCommand: ResolveExecutableFn = resolveExecutable,
+): OpenUrlCommand | undefined {
+	if (platform === "win32") {
+		return {
+			command: "cmd",
+			args: ["/c", "start", "", url],
+		};
+	}
+
+	if (platform === "darwin") {
+		const command = resolveCommand("open");
+		return command ? { command, args: [url] } : undefined;
+	}
+
+	const command = resolveCommand("xdg-open");
+	return command ? { command, args: [url] } : undefined;
+}
+
+export function openUrl(url: string): boolean {
+	const command = getOpenUrlCommand(url);
+	if (!command) {
+		return false;
+	}
+
+	try {
+		const child = spawn(command.command, command.args, {
+			detached: true,
+			stdio: "ignore",
+			windowsHide: true,
+		});
+		child.on("error", () => {});
+		child.unref();
+		return true;
+	} catch {
+		return false;
+	}
+}