in src/ade.rs [23:33]
fn is_mountpoint(mountdir: &str) -> Result<Mountpoint> {
let res = Command::new("mountpoint")
.arg("-q")
.arg(mountdir)
.status()?;
match res.success() {
true => Ok(Mountpoint::Mounted),
false => Ok(Mountpoint::NotMounted),
}
}