nested_dir.rs

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

fn main() {
    let dir = env!("DIR").to_string();
    println!("Looking in {}", dir);
    let _ = loop_dir_contents(&dir);
}

fn loop_dir_contents(dir: &String) -> io::Result<()> {
    for entry in try!(fs::read_dir(dir)) {
        let app = try!(entry);
        if app.path().is_dir() {
            let _ = create_config_map(dir, app.path());
        }
    }
    Ok(())
}

fn create_config_map(root: &String, app_path: PathBuf) -> io::Result<()> {
    match app_path.file_name() {
        Some(app_os_str) => {
            let app = app_os_str.to_str().unwrap();
            println!("Create ConfigMap for {}/{}", root, app);
            for entry in try!(fs::read_dir(format!("{}/{}", root, app))) {
                let file = try!(entry);
                println!("{:?}", file.path());
            }
        }
        None => {
            println!("No path for {} {:?}", root, app_path);
        }
    }
    Ok(())
}