itconfig

Easy build a configs from environment variables and use it in globally.

We recommend you start with the [documentation].

Example usage

```rust

[macro_use] extern crate itconfig;

use std::env; //use dotenv::dotenv;

config! { DEBUG: bool => true, HOST: String => "127.0.0.1",

DATABASE_URL < (
    "postgres://",
    POSTGRES_USERNAME => "user",
    ":",
    POSTGRES_PASSWORD => "pass",
    "@",
    POSTGRES_HOST => "localhost:5432",
    "/",
    POSTGRES_DB => "test",
),

NAMESPACE {
    #[env_name = "MY_CUSTOM_NAME"]
    FOO: bool,

    BAR: i32 => 10,

    #[cfg(feature = "feature")]
    #[env_name = "POSTGRES_CONNECTION_STRING"]
    DATABASE_URL: String
}

}

fn main () { // dotenv().ok(); env::setvar("MYCUSTOM_NAME", "t");

cfg::init();
assert_eq!(cfg::HOST(), String::from("127.0.0.1"));
assert_eq!(cfg::DATABASE_URL(), String::from("postgres://user:pass@localhost:5432/test"));
assert_eq!(cfg::NAMESPACE::FOO(), true);

} ```

Roadmap

[x] Add namespace for variables
[x] Custom env name
[x] Support feature config and other meta directives
[x] Add default value to env if env is not found
[x] Concat env variables to one variable
[ ] Add nested namespaces
[ ] Support array type
[ ] Support hashmap type
[ ] Support custom env type

License

Contributors

pleshevskiy (Dmitriy Pleshevskiy) – creator, maintainer.