# 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::set_var("MY_CUSTOM_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
[MIT] © [Ice Temple](https://github.com/icetemple)
## Contributors
[pleshevskiy](https://github.com/pleshevskiy) (Dmitriy Pleshevskiy) – creator, maintainer.
[documentation]: https://docs.rs/itconfig