fix(tanstackstart-react): detect tunnel route conflicts under both tsr quote styles

Made-with: Cursor

Author: nikolovlazar

packages/tanstackstart-react/src/vite/tunnelRoute.ts

@@ -82,12 +82,13 @@ function normalizeTunnelRouteOptions(options: TunnelRouteOptions): NormalizedTun
   return { resolvedPath: resolveTunnelRoute(path || true), allowedDsns };
 }
 
+// `routeTree.gen.ts` quote style follows `tsr.config.json#quoteStyle` (`single` | `double`),
+// so we check both forms for each route-identifying key.
+const ROUTE_CONFLICT_KEYS = ['fullPath', 'path', 'id'] as const;
+
 function hasRouteConflict(source: string, resolvedTunnelRoute: string): boolean {
-  return (
-    source.includes(`fullPath: '${resolvedTunnelRoute}'`) ||
-    source.includes(`path: '${resolvedTunnelRoute}'`) ||
-    source.includes(`id: '${resolvedTunnelRoute}'`)
-  );
+  const literals = [`'${resolvedTunnelRoute}'`, `"${resolvedTunnelRoute}"`];
+  return ROUTE_CONFLICT_KEYS.some(key => literals.some(literal => source.includes(`${key}: ${literal}`)));
 }
 
 function injectAfterLastImport(source: string, statement: string): string {

packages/tanstackstart-react/test/vite/tunnelRoute.test.ts

@@ -97,6 +97,17 @@ describe('tunnelRoute vite plugin', () => {
     );
   });
 
+  it('fails on route conflict when routeTree.gen.ts uses double quotes (tsr quoteStyle: double)', () => {
+    const doubleQuotedMonitorTree = ROUTE_TREE_SOURCE.replace("path: '/'", 'path: "/monitor"').replace(
+      "id: '/'",
+      'id: "/monitor"',
+    );
+
+    expect(() => injectManagedTunnelRoute(doubleQuotedMonitorTree, '/monitor')).toThrow(
+      'Cannot register managed tunnel route "/monitor" because an existing TanStack Start route already uses that path.',
+    );
+  });
+
   it('loads a virtual managed tunnel route module for a static tunnel path', async () => {
     const plugin = makeTunnelRoutePlugin({
       allowedDsns: ['http://public@localhost:3031/1337'],