Function minigrep_test_package_001::run

pub fn run(config: Config) -> Result<(), Box<dyn Error>>

Given a valid config of arguments, run the minigrep application. This is the functional entry-point into the application.

Examples

use std::{env, process};
use minigrep::Config;

/// run `minigrep` CLI application
fn main() {
    // try to parse CLI arguments into minigrep config;
    let config = Config::new(env::args()).unwrap_or_else(|err| {
        // if fail: convey error and exit
        eprintln!("Problem parsing arguments: {}", err);
        process::exit(1);
    });

    // try to run minigrep; convey error and exit if fail
    if let Err(e) = minigrep::run(config) {
        eprintln!("Application error: {}", e);
        process::exit(1);
    }
}

Errors

This function will return an IO error if config.filename does not exist. Other errors may also be returned according to std::fs::read_to_string