build.rs

use anyhow::Result;
use std::process::Command;

fn main() -> Result<()> {
    build_ui_files();

    vergen::EmitBuilder::builder()
        .all_cargo()
        .all_build()
        .all_git()
        .all_rustc()
        .git_describe(true, false, Some("v*"))
        .emit()?;

    Ok(())
}

fn build_ui_files() {
    if std::env::var("BUILD_UI").is_err() {
        return;
    }

    let ui_dir = match std::env::current_dir() {
        Ok(mut d) => {
            d.push("ui");
            d
        }
        Err(e) => panic!("Could not get current directory: {}", e),
    };

    let yarn_command = match std::env::var("YARN_PATH") {
        Ok(c) => c,
        _ => "yarn".to_string(),
    };
    println!("yarn command: {}", &yarn_command);
    let ui_build_status = Command::new(yarn_command)
        .arg("build")
        .current_dir(ui_dir)
        .status()
        .expect("Failed to build UI");
    if !ui_build_status.success() {
        panic!("Could not build UI");
    }
}