디렉터리 관리

import Foundation

let fm = FileManager.default
print("Got the default file manager")

import Foundation

let fm = FileManager.default
let dir = URL(fileURLWithPath: "/tmp/myapp/cache")
try? fm.createDirectory(at: dir, withIntermediateDirectories: true)
print("Directory created")

import Foundation

let fm = FileManager.default
var isDir: ObjCBool = false
let exists = fm.fileExists(atPath: "/tmp", isDirectory: &isDir)
print("Exists: \(exists), isDir: \(isDir.boolValue)")

import Foundation

let fm = FileManager.default
let dir = URL(fileURLWithPath: "/tmp")
if let items = try? fm.contentsOfDirectory(at: dir, includingPropertiesForKeys: nil) {
    print("Item count: \(items.count)")
}

import Foundation

let fm = FileManager.default
if let names = try? fm.contentsOfDirectory(atPath: "/tmp") {
    print("Names count: \(names.count)")
}

import Foundation

let fm = FileManager.default
let url = URL(fileURLWithPath: "/tmp/myapp/cache/old.txt")
try? fm.removeItem(at: url)
print("Removed item if it existed")

import Foundation

let fm = FileManager.default
let src = URL(fileURLWithPath: "/tmp/a.txt")
let dst = URL(fileURLWithPath: "/tmp/b.txt")
try? fm.moveItem(at: src, to: dst)
print("Moved if source existed")

import Foundation

let fm = FileManager.default
let root = URL(fileURLWithPath: "/tmp")
if let e = fm.enumerator(at: root, includingPropertiesForKeys: nil) {
    var count = 0
    for case _ as URL in e { count += 1; if count > 5 { break } }
    print("Walked some entries: \(count)")
}

import Foundation

let fm = FileManager.default
if let attrs = try? fm.attributesOfItem(atPath: "/tmp"),
   let size = attrs[.size] {
    print("Has size attribute: \(size)")
}

import Foundation

let fm = FileManager.default
do {
    try fm.removeItem(at: URL(fileURLWithPath: "/no/such/file"))
} catch {
    print("Remove failed: \(error.localizedDescription)")
}