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import { fromFileUrl } from "std/path/mod.ts";import dev, { createWatchFsEmitter } from "aleph/dev";
const emitter = createWatchFsEmitter();emitter.on("modify", ({ specifier }) => {  if (specifier.endsWith(".rs")) {    // rebuild the yew app then restart the dev server    start();  }});
let buildProc: Deno.Process | null = null;
// build the yew app then start the dev serverasync function start() {  const cwd = fromFileUrl(new URL(".", import.meta.url));  if (buildProc) {    buildProc.kill("SIGTERM");    buildProc.close();  }  buildProc = Deno.run({    cmd: ["wasm-pack", "build", "--target", "web"],    stdout: "inherit",    stderr: "inherit",    cwd,  });  try {    await buildProc.status();    buildProc.close();    await Deno.remove(`${cwd}/pkg/.gitignore`);    // start aleph dev server    dev({ baseUrl: import.meta.url });  } finally {    buildProc = null;  }}
start();