Rollup Support

[wtcross]

💡 Feature request

Overview and problem statement

It would be great for Wrangler to support Rollup for module bundling in addition to Webpack. The wasm module for Rollup enables importing and bundling wasm modules. With my limited understanding of Wrangler internals I think this would enable supporting Rollup as well.

Basic example

The svelte-ssr-worker project by @lukeed is a great example of a project that could benefit from this.

[xtuc]

Similar report #1274. To echo what I said, I think it's certainly possible to support mutliple bundlers, it's just not on our TODO list at the moment.

[wtcross]

Thanks for the quick response. Webpack accomplishes all the same things so I would also categorize this as low priority. This would be more of a refinement down the road I suppose.

[wtcross]

I created an example similar to the svelte-ssr-worker project I previously linked to that uses Webpack instead of Rollup to accomplish the same goal.

https://github.com/wtcross/svelte-ssr-cloudflare-worker-site

Note the need to wrap wrangler with NPM scripts since it's a multi-phased build (client → ssr → worker).

[PierBover]

Is it not possible to bundle a Worker project to a single .js file with Rollup and then in wrangler.toml just use type = "javascript"?

Am I missing something?

[wtcross]

@PierBover as far as I can tell it forces a webpack build even if type = "javascript" is used. That's probably a separate issue.

[EverlastingBugstopper]

mmmmm - definitely should not be running webpack at all if you set type = "javascript". if it is, that's a bug.

[PierBover]

I haven't seen that either. And I even used Rollup to bundle a worker (or at least I tested it).