user-svc/build.rs

extern crate dotenv;

use std::{env, collections::HashMap};

use sqlx::Connection;
use dotenv::dotenv;

#[tokio::main]
async fn main(){
    println!("cargo:rerun-if-changed=migrations");
    dotenv().ok();
    let mut dotenv_vars: HashMap<String, String> = HashMap::new();
    for (key, val) in env::vars() {
        dotenv_vars.insert(key, val);
    }
    let db_url = match dotenv_vars.get("DATABASE_URL") {
        Some(var) => {var},
        None => {panic!("DATABASE_URL env var not found, set it!")}
    };
    let mut conn = match sqlx::MySqlConnection::connect(&db_url).await {
        Ok(res) => {res},
        Err(e) => {panic!("{}", e)}
    };
    match sqlx::migrate!("./migrations").run(&mut conn).await {
        Ok(()) => {println!("{}", "Successfully ran migrations.")},
        Err(error) => {panic!("{error}")}
    };
}