mkenv 1.0.2

Lightweight yet useful library to help you define the environment your app needs
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

use std::{env, time::Duration};

use mkenv::{make_config, prelude::*};

make_config! {
    struct MyConfig {
        user: { var_name: "USER" },
        timeout: {
            var_name: "REQUEST_TIMEOUT",
            layers: [
                parsed<Duration>(|input| {
                    input.parse::<u64>().map(Duration::from_millis).map_err(From::from)
                }),
            ],
        }
    }
}

fn main() {
    // SAFETY: we're in a single thread program.
    unsafe {
        env::set_var("REQUEST_TIMEOUT", "foobar");
    }

    let config = MyConfig::define();
    config.init();
    println!("everything is fine");
}