nix-config-parser

A simple parser for the Nix configuration file format.

Based off of https://github.com/NixOS/nix/blob/0079d2943702a7a7fbdd88c0f9a5ad677c334aa8/src/libutil/config.cc#L80-L138.

Usage

Read from a file

```rust use std::error::Error;

fn main() -> Result<(), Box> { std::fs::write( "nix.conf", b"experimental-features = flakes nix-command\nwarn-dirty = false\n", )?;

let nix_conf = nix_config_parser::NixConfig::parse_file(&std::path::Path::new("nix.conf"))?;

assert_eq!(
   nix_conf.settings().get("experimental-features").unwrap(),
   "flakes nix-command"
);
assert_eq!(nix_conf.settings().get("warn-dirty").unwrap(), "false");

std::fs::remove_file("nix.conf")?;

Ok(())

} ```

Read from a string

```rust use std::error::Error;

fn main() -> Result<(), Box> { let nixconfstring = String::from("experimental-features = flakes nix-command"); let nixconf = nixconfigparser::NixConfig::parsestring(nixconfstring, None)?;

assert_eq!(
    nix_conf.settings().get("experimental-features").unwrap(),
    "flakes nix-command"
);

Ok(())

} ```