//https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=1532a4ff9c699e1ed33cda47e81593b7

use std::error::Error;
use tokio::runtime::Runtime;
use tokio::process::{Command, Child};
use std::process::Output;

pub fn main() -> Result<(), Box<dyn Error>> {
    let mut rt = Runtime::new().unwrap();
    let answer = rt.block_on(is_mount_point_mounted("/mnt/lustre1"))?;
    println!("answer = {:?}", answer);
    Ok(())
}

pub async fn is_mount_point_mounted(mount_point: &str) -> std::io::Result<bool> {
    let process: Child = Command::new("mountpoint")
        .arg("-q")
        .arg(mount_point)
        .spawn()?;
    let output: Output = process.wait_with_output().await?;
    Ok(output.status.success())
}