rustchdir

how to make `cd` call in Rust?

I'm writing a command-line tool using Rust. I want to cd to the wanted dictionary when I execute my Rust command-line tool.

I use env::set_current_dir(path), but it does not work. After that, I use nix, call nix::unistd::chdir(path), but it does not work either.

So how can I archieve the goal of chaging command dictionary? How to make cd call in Rust.

Solution

  • This is not directly possible - the Rust program can only affect its own environment, not your shell. You can define a shell function which uses the output of your Rust program to perform some action, for example

    # bash
mycd() {
    cd "$(command myrustprogram)"
}

    // main.rs
fn main() {
    println!("/some/path")
}