rust - command -demo

command.rs

use std::env::args;
use std::process::Command;

fn main() {
    // get command args
    let arg: Vec<String> = args().collect();
    // get compile filename
    let filename = &arg[1];
    println!("{}", filename);
    // compile
    let output = Command::new("rustc")
        .arg(filename)
        .output()
        .expect("rustc compile error");
    println!("{}", String::from_utf8_lossy(&output.stdout));
    // execute
    let strs: Vec<&str> = filename.split("/").collect();
    let execute = (strs[strs.len() - 1]).trim_end_matches(".rs");
    println!("{}", execute);
    let sh = vec![".", execute].join("/");
    let output = Command::new(sh)
        .output()
        .expect("failed to execute command");
    println!("{}", String::from_utf8_lossy(&output.stdout));
}