Lib.rs

Cargo.toml

[build-dependencies]
sika-asset-loader = "0.1.0"

build.rs

fn main() {
    let loader = sika_asset_loader::AssetLoader::new()
        .dir("ui")
        .output("ui.rs");
    if let Err(err) = loader.load() {
        println!("cargo:warning={:?}", err);
    }
}

Use

mod ui {
    include!(concat!(env!("OUT_DIR"), "/ui.rs"));
}

let scope = web::scope("/ui");
ui::asset_handle(scope);