Auto-assign a port

To properly test the project I’m working on, I need two separate apps running at the same time. I’ve got similar rollup configs for each.

Both are using firebase serve for their static assets. It has the handy feature of finding its own port if the default one is taken:

[1] ⚠  hosting: Port 5000 is not available. Trying another port...
[1] i  hosting: Serving hosting files from: packages/ui/site
[1] ✔  hosting: Local server: http://0.0.0.0:5005

Would you be amenable to a PR that added this feature to rollup-plugin-livereload?

This passage from the upstream changelog leads me to believe that the plugin is the correct place to fix this:

You can now use server.on ‘error’ in your code to catch the “port in use” message gracefully. The CLI now handles this nicely as well.

[thgh]

If this doesn’t add much dependencies, then yes! Could you build the feature with https://github.com/Rich-Harris/port-authority ?

If you just want to solve your problem => assign a random port once per project For example: livereload({ port: 51823 }).

[thgh]

Checkout out rollup-plugin-livereload@2.0.0 🎉