Reproduction link or steps

• Follow the your first bundle guide
• Create a watcher.js with the following content (as specified in the docs)

import { watch } from "rolldown";

const watcher = watch({
  input: "src/main.js",
});

watcher.on("event", console.log);

await watcher.close();

What is expected?

A new log / build should start after each save.

• Run node watcher.js
• Save your src/main.js
• You should see a new log appear in stdout
• Save again n times
• You should see n new logs appear in stdout

What is actually happening?

There's only a new log / build after the first save - then nothing happens.

• Run node watcher.js
• Save your src/main.js
• You should see a new log appear in stdout
• Save again
• Nothing happens
• Save another file
• Another log appears in stdout
• Save again
• Nothing happens

System Info

System:
    OS: Linux 6.17 Arch Linux
    CPU: (8) x64 Intel(R) Core(TM) i7-1065G7 CPU @ 1.30GHz
    Memory: 12.84 GB / 15.20 GB
    Container: Yes
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 23.9.0
    npm: 10.9.2
    pnpm: 10.20.0
  Browsers:
    Brave Browser: 134.1.76.73
  Editor:
    NVIM v0.11.2
    Build type: RelWithDebInfo
    LuaJIT 2.1.1741730670

Any additional comments?

I'm creating a Chrome Extension and wanted to use vite build --watch - but it only triggered once on the initial build, and once again when saving each file.

Did some trial and error - and it works when using rollup.

The same issue did not appear when testing rolldown on Windows.