use std::error::Error; use std::fs; pub struct Config { pub query: String, pub file_path: String, } impl Config { pub fn build(args: &[String]) -> Result { if args.len() < 3 { return Err("not enough arguments"); } let query = args[1].clone(); let file_path = args[2].clone(); Ok(Config { query, file_path }) } } pub fn run(config: Config) -> Result<(), Box> { let contents = fs::read_to_string(config.file_path)?; println!("With text:\n{contents}"); Ok(()) }