emulate mkdir -p in Rust (create directories recursivly and ignore an existing directory)

mkdir_p.rs

use std::io;
use std::path::Path;
use std::fs::create_dir_all;

fn mkdir_p<P: AsRef<Path>>(path: &P) -> io::Result<()> {
     if let Err(e) = create_dir_all(path) {
         if e.kind() != io::ErrorKind::AlreadyExists {
             return Err(e)
         }
     }
     Ok(())
}

Update: use fs::create_dir_all instead.
When path is a exists file, the AlreadyExists will be ignored.

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