Refactor HMR server-side watcher. Move to fs.watch instead of the inbuild esbuild.watch

src/functions/server/handle-routes.ts

@@ -3,6 +3,7 @@ import type { BunextServerRouteConfig, BunxRouteParams } from "../../types";
 import grabRouteParams from "../../utils/grab-route-params";
 import grabConstants from "../../utils/grab-constants";
 import grabRouter from "../../utils/grab-router";
+import isDevelopment from "../../utils/is-development";
 
 type Params = {
     req: Request;
@@ -11,6 +12,7 @@ type Params = {
 
 export default async function ({ req, server }: Params): Promise<Response> {
     const url = new URL(req.url);
+    const is_dev = isDevelopment();
 
     const { MBInBytes, ServerDefaultRequestBodyLimitBytes } = grabConstants();
 
@@ -37,7 +39,10 @@ export default async function ({ req, server }: Params): Promise<Response> {
 
     const routeParams: BunxRouteParams = await grabRouteParams({ req });
 
-    const module = await import(match.filePath);
+    const now = Date.now();
+    const import_path = is_dev ? `${match.filePath}?t=${now}` : match.filePath;
+
+    const module = await import(import_path);
     const config = module.config as BunextServerRouteConfig | undefined;
 
     const contentLength = req.headers.get("content-length");
@@ -70,5 +75,9 @@ export default async function ({ req, server }: Params): Promise<Response> {
         server,
     } as BunxRouteParams);
 
+    if (is_dev) {
+        res.headers.set("Cache-Control", "no-cache, no-store, must-revalidate");
+    }
+
     return res;
 }