Crate rhai_env 

About rhai-env

This crate provides inspection and manipulation utilties of the process’s environment for the Rhai scripting language.

This crate is heavily inspired by rhai-fs.

Usage

Cargo.toml

[dependencies]
rhai-env = "0.1.0"

Rhai script

let foo = read_env("FOO");
set_env("BAR", "blah");

Rust source

use rhai::{Engine, EvalAltResult};
use rhai::packages::Package;
use rhai_env::EnvironmentPackage;

fn main() -> Result<(), Box<EvalAltResult>> {
    // Create Rhai scripting engine
    let mut engine = Engine::new();

    // Create environment package and add the package into the engine
    let package = EnvironmentPackage::new();
    package.register_into_engine(&mut engine);

    // Print the value of the environment variable `PATH`.
    let value = engine.eval::<String>(r#"env("PATH")"#)?;
    println!("{}", value);

    Ok(())
}

Features

Feature	Default	Description
no_index	disabled	Enables support for no_index builds of Rhai
sync	disabled	Enables support for sync builds of Rhai
metadata	disabled	Enables support for generating package documentation

API

The following functions are defined in this package:

env(key: &str) -> String

Fetches the environment variable key from the current process.

envs() -> Map

Fetches all environment variables.

set_env(key: &str, value: &str)

Sets the environment variable key to the value value for the currently running process.

Structs

EnvironmentPackage

Package for filesystem manipulation operations.