tree (print file list recursively)

tree.swift

import Foundation
import Cocoa

var fm = NSFileManager()
var err:NSError?
var err2:NSError?

var indent_cnt = 0

func indent(depth:Int) -> String {
    var result = ""
    for i in 1...depth {
        result += " "
    }
    return result
}

func tree(basePath:String) {
    let indent_str = indent(indent_cnt)
    var lst = fm.contentsOfDirectoryAtPath(basePath, error: &err)
    for v in lst {
        let pth = basePath + "/" + (v as String)
        let d = fm.attributesOfItemAtPath(pth, error: &err2)
        if (d["NSFileType"] as NSString == "NSFileTypeDirectory") {
            indent_cnt += 1
            tree(pth)
            indent_cnt -= 1
        }
        println(indent_str + pth)
        println(d["NSFileType"])
    }
}

// let _basePath = "~".stringByExpandingTildeInPath
// tree(_basePath)