Rebuilding / build.rs

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I found this library by following some links from rustwasm/wasm-pack#916.

I left a comment at rustwasm/wasm-pack#916 (comment). We were originally hoping to build the wasm project with build.rs which, IIUC, would avoid rebuilding without code changes. There's a very WIP draft at PRQL/prql#2881.

IIUC this project doesn't use build.rs (though with xtask integrates into the ecosystem nicely...). Is avoiding rebuilding something that's considered here at all?

Thanks!

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rustwasm/wasm-bindgen#3494 (reply in thread) suggests this isn't possible with standard approaches, so I'll close.

I think that https://crates.io/crates/substrate-wasm-builder is doing this by creating a new crate, compiling it, and then using the artifact as the .wasm files. So it's possible, but not easy.