NiceUI Build JS

Helpers for NiceUI framework.

Install

npm i -D niceui-build

Usage

Use Case 1: PostCSS stylesheet in Rust WASM Component. Stylesheet supports CSS Modules

In your Rust project create package.json, postcss.config.js, css/styles.module.css and build.rs and modify lib.rs.

package.json

{
  "scripts": {
    "build": "postcss css --dir $OUT_DIR"
  },
  "devDependencies": {
    "niceui-build": "^1.0.0",
    "autoprefixer": "^9.8.0",
    "cssnano": "^4.1.10",
    "lost": "^8.3.1",
    "postcss-cli": "^7.1.1",
    "postcss-modules": "^2.0.0",
    "postcss-preset-env": "^6.7.0"
  }
}

postcss.config.js

module.exports = (ctx) => ({
  plugins: [
    require("autoprefixer")({ grid: false }),
    require("postcss-preset-env")({ stage: 1 }),
    require("lost")({}),
    require("postcss-modules")({
      getJSON: require('niceui-build').postCssPluginJsonToRustStruct,
    }),
    require("cssnano")({}),
  ],
});

css/styles.module.css

.example {
    border: 1px solid green;
}

build.rs

use std::process::Command;

fn main() {
    Command::new("npm").args(&["run", "build"]).status().unwrap();
    println!("cargo:rerun-if-changed=css/styles.module.css");
    println!("cargo:rerun-if-changed=package-lock.json");
    println!("cargo:rerun-if-changed=package.json");
    println!("cargo:rerun-if-changed=postcss.config.js");
    println!("cargo:rerun-if-changed=build.rs");
}

lib.rs

include!(concat!(env!("OUT_DIR"), "/styles.module.rs"));

pub(crate) const STYLES_MODULE_CSS: &str =
    include_str!(concat!(env!("OUT_DIR"), "/styles.module.css"));

pub(crate) fn test() {
    eprintln!("{:?}", STYLES_MODULE_DEFAULT);
    eprintln!("{}", STYLES_MODULE_DEFAULT.example);
    eprintln!("{}", STYLES_MODULE_CSS);
}

Now you have type safe and modular css in Rust, congratulations!