zoi-lua 1.24.1

Advanced Package Manager & Environment Orchestrator
Documentation 
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use mlua::{self, Lua, LuaSerdeExt, Table};

/// Exposes data parsing utilities to the Lua environment.
///
/// These helpers allow package scripts to easily consume structured data
/// commonly found in upstream projects:
/// - `json`/`yaml`/`toml`: Parsers for structured configuration files.
/// - `checksumFile`: A specialized parser for standard checksum files (e.g. `sha256sums`).
///
/// These utilities return native Lua tables, allowing for idiomatic manipulation
/// of complex data within the package script.
pub fn add_parse_util(lua: &Lua) -> Result<(), mlua::Error> {
    let parse_table = lua.create_table()?;

    let json_fn = lua.create_function(|lua, json_str: String| {
        let value: serde_json::Value = serde_json::from_str(&json_str)
            .map_err(|e| mlua::Error::RuntimeError(e.to_string()))?;
        lua.to_value(&value)
    })?;
    parse_table.set("json", json_fn)?;

    let yaml_fn = lua.create_function(|lua, yaml_str: String| {
        let value: serde_yaml::Value = serde_yaml::from_str(&yaml_str)
            .map_err(|e| mlua::Error::RuntimeError(e.to_string()))?;
        lua.to_value(&value)
    })?;
    parse_table.set("yaml", yaml_fn)?;

    let toml_fn = lua.create_function(|lua, toml_str: String| {
        let value: toml::Value =
            toml::from_str(&toml_str).map_err(|e| mlua::Error::RuntimeError(e.to_string()))?;
        lua.to_value(&value)
    })?;
    parse_table.set("toml", toml_fn)?;

    let checksum_fn = lua.create_function(|_, (content, file_name): (String, String)| {
        for line in content.lines() {
            let parts: Vec<&str> = line.split_whitespace().collect();
            if parts.len() == 2 && parts[1] == file_name {
                return Ok(Some(parts[0].to_string()));
            }
        }
        Ok(None)
    })?;
    parse_table.set("checksumFile", checksum_fn)?;

    let utils_table: Table = lua.globals().get("UTILS")?;
    utils_table.set("PARSE", parse_table)?;

    Ok(())
}