Watching of rust files not working in Vite

[darichey]

When using this plugin in Vite, modifying rust files does not trigger a reload. Here is a minimal repro: https://github.com/darichey/rollup-plugin-rust-watch-issue-demo

Using vite --debug, I can see this in the logs when modifying lib.rs:

vite:hmr [file change] src/lib.rs +5s
vite:hmr [no modules matched] src/lib.rs +0ms

It's possible that this is a Vite issue. It seems related to vitejs/vite#7024.

[meesvermeulen]

I ran into the same issue.
As a workaround I added a handleHotUpdate hook to reload:

let rustPluginInstance = rust();
rustPluginInstance["handleHotUpdate"] = (ctx) => {
  if (ctx.file.endsWith(".rs")) {
    console.log("Rust code changed");
    ctx.server.restart();
  }
};

[Pauan]

This is definitely a Vite bug. They claim that they fixed it, but it seems that it's not fixed.