confik
This crate provides a macro for creating configuration/settings structures and functions to read them from files and the environment.
Example
Assume that config.toml
contains
host = "google.com"
username = "root"
and the environment contains
PASSWORD=hunter2
Then:
use confik::{Configuration, EnvSource, FileSource};
#[derive(Debug, PartialEq, Configuration)]
struct Config {
host: String,
username: String,
#[confik(secret)]
password: String,
}
fn main() {
let config = Config::builder()
.override_with(FileSource::new("config.toml"))
.override_with(EnvSource::new().allow_secrets())
.try_build()
.unwrap();
assert_eq!(
config,
Config {
host: "google.com".to_string(),
username: "root".to_string(),
password: "hunter2".to_string(),
}
);
}
License
This project is licensed under either of
- Apache License, Version 2.0
- MIT License
at your option.