85 lines
2.8 KiB
Swift
85 lines
2.8 KiB
Swift
//
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// Copyright (c) 2020 Open Whisper Systems. All rights reserved.
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//
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import Foundation
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@objc
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public extension OWSFileSystem {
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class func fileOrFolderExists(atPath filePath: String) -> Bool {
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FileManager.default.fileExists(atPath: filePath)
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}
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class func fileOrFolderExists(url: URL) -> Bool {
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fileOrFolderExists(atPath: url.path)
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}
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class func deleteFile(_ filePath: String) -> Bool {
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deleteFile(filePath, ignoreIfMissing: false)
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}
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class func deleteFileIfExists(_ filePath: String) -> Bool {
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return deleteFile(filePath, ignoreIfMissing: true)
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}
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class func deleteFile(url: URL) throws {
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try FileManager.default.removeItem(at: url)
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}
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class func deleteFileIfExists(url: URL) throws {
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guard FileManager.default.fileExists(atPath: url.path) else {
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return
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}
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try deleteFile(url: url)
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}
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class func temporaryFileUrl(fileExtension: String? = nil,
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isAvailableWhileDeviceLocked: Bool = false) -> URL {
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return URL(fileURLWithPath: temporaryFilePath(fileExtension: fileExtension,
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isAvailableWhileDeviceLocked: isAvailableWhileDeviceLocked))
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}
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class func temporaryFilePath(fileExtension: String? = nil) -> String {
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temporaryFilePath(fileExtension: fileExtension, isAvailableWhileDeviceLocked: false)
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}
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class func temporaryFilePath(fileExtension: String? = nil,
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isAvailableWhileDeviceLocked: Bool = false) -> String {
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let tempDirPath = (isAvailableWhileDeviceLocked
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? OWSTemporaryDirectoryAccessibleAfterFirstAuth()
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: OWSTemporaryDirectory())
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var fileName = UUID().uuidString
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if let fileExtension = fileExtension,
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!fileExtension.isEmpty {
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fileName = String(format: "\(fileName).\(fileExtension)")
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}
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let filePath = (tempDirPath as NSString).appendingPathComponent(fileName)
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return filePath
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}
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}
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// MARK: -
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public extension OWSFileSystem {
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class func deleteFile(_ filePath: String, ignoreIfMissing: Bool = false) -> Bool {
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do {
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try FileManager.default.removeItem(atPath: filePath)
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return true
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} catch {
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let nsError = error as NSError
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let isPosixNoSuchFileError = (nsError.domain == NSPOSIXErrorDomain && nsError.code == ENOENT)
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let isCocoaNoSuchFileError = (nsError.domain == NSCocoaErrorDomain && nsError.code == NSFileNoSuchFileError)
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if ignoreIfMissing,
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isPosixNoSuchFileError || isCocoaNoSuchFileError {
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// Ignore "No such file or directory" error.
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return true
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} else {
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owsFailDebug("Error: \(error)")
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}
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return false
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}
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}
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}
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