73 lines
1.9 KiB
Swift
73 lines
1.9 KiB
Swift
import Foundation
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extension URL {
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func ensureParentFolderExistence() throws {
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try deletingLastPathComponent().ensureFolderExistence()
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}
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func ensureFolderExistence() throws {
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guard !exists else {
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return
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}
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try FileManager.default.createDirectory(at: self, withIntermediateDirectories: true)
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}
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var isDirectory: Bool {
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do {
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let resources = try resourceValues(forKeys: [.isDirectoryKey])
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guard let isDirectory = resources.isDirectory else {
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print("No isDirectory info for \(path)")
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return false
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}
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return isDirectory
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} catch {
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print("Failed to get directory information from \(path): \(error)")
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return false
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}
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}
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var exists: Bool {
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FileManager.default.fileExists(atPath: path)
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}
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/**
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Delete the file at the url.
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*/
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func delete() throws {
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try FileManager.default.removeItem(at: self)
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}
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func copy(to url: URL) throws {
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if url.exists {
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try url.delete()
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}
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try url.ensureParentFolderExistence()
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try FileManager.default.copyItem(at: self, to: url)
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}
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var size: Int? {
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let attributes = try? FileManager.default.attributesOfItem(atPath: path)
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return (attributes?[.size] as? NSNumber)?.intValue
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}
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func resolvingFolderTraversal() -> URL? {
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var components = [String]()
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absoluteString.components(separatedBy: "/").forEach { part in
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if part == ".." {
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if !components.isEmpty {
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_ = components.dropLast()
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} else {
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components.append("..")
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}
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return
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}
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if part == "." {
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return
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}
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components.append(part)
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}
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return URL(string: components.joined(separator: "/"))
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}
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}
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