70 lines
2.2 KiB
Swift
70 lines
2.2 KiB
Swift
//
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// Copyright 2022 New Vector Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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import Foundation
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enum FileManagerError: Error {
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case invalidFileSize
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}
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extension FileManager {
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func directoryExists(at url: URL) -> Bool {
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var isDirectory: ObjCBool = false
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guard fileExists(atPath: url.path(percentEncoded: false), isDirectory: &isDirectory) else {
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return false
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}
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return isDirectory.boolValue
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}
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func createDirectoryIfNeeded(at url: URL, withIntermediateDirectories: Bool = true) throws {
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guard !directoryExists(at: url) else {
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return
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}
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try createDirectory(at: url, withIntermediateDirectories: withIntermediateDirectories)
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}
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func copyFileToTemporaryDirectory(file url: URL, with filename: String? = nil) throws -> URL {
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let newURL = URL.temporaryDirectory.appendingPathComponent(filename ?? url.lastPathComponent)
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try? removeItem(at: newURL)
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try copyItem(at: url, to: newURL)
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return newURL
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}
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@discardableResult
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func writeDataToTemporaryDirectory(data: Data, fileName: String) throws -> URL {
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let newURL = URL.temporaryDirectory.appendingPathComponent(fileName)
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try data.write(to: newURL)
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return newURL
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}
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/// Retrieve a file's disk size
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/// - Parameter url: the file URL
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/// - Returns: the size in bytes
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func sizeForItem(at url: URL) throws -> Double {
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let attributes = try attributesOfItem(atPath: url.path())
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guard let size = attributes[FileAttributeKey.size] as? Double else {
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throw FileManagerError.invalidFileSize
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}
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return size
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}
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}
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