build.rs

use std::path::PathBuf;
use rsass::{compile_scss_path, output::{Format, Style}};
use std::fs;

fn get_input_path(filename: &str) -> PathBuf {
  let mut path = PathBuf::with_capacity(50);
    path.push(".");
    path.push("styles");
    path.push(filename);
    path.set_extension("scss");
    path
}

fn get_output_path(filename: &str) -> PathBuf {
  let mut path = PathBuf::with_capacity(50);
    path.push(".");
    path.push("static");
    path.push(filename);
    path.set_extension("css");
    path
}

fn main () {
  println!("cargo:rerun-if-changed=styles");


  let entrypoints = ["index"];
  for filename in &entrypoints {
    
    let input_path = get_input_path(filename);
    let css = compile_scss_path(
      &input_path,
      Format {
        style: Style::Expanded,
        ..Default::default()
      }
    ).unwrap();

    let output_path = get_output_path(filename);
    fs::write(output_path, css).unwrap();

  }
}