rust - Getting the absolute path from a PathBuf

Question

Given a relative path:

PathBuf::from("./cargo_home")

Is there a way to get the absolute path?

question from:https://stackoverflow.com/questions/30511331/getting-the-absolute-path-from-a-pathbuf

Answer 1

Rust 1.5.0 added std::fs::canonicalize, which sounds pretty close to what you want:

Returns the canonical form of a path with all intermediate components normalized and symbolic links resolved.

Note that, unlike the accepted answer, this removes the ./ from the returned path.

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A simple example from my machine:

use std::fs;
use std::path::PathBuf;

fn main() {
    let srcdir = PathBuf::from("./src");
    println!("{:?}", fs::canonicalize(&srcdir));

    let solardir = PathBuf::from("./../solarized/.");
    println!("{:?}", fs::canonicalize(&solardir));
}

Ok("/Users/alexwlchan/Developer/so-example/src")
Ok("/Users/alexwlchan/Developer/solarized")