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https://github.com/swift-server/swift-aws-lambda-runtime.git
synced 2026-06-02 07:27:33 +00:00
Sébastien Stormacq
71d49b049e
When including resources in the package and packaging on Ubuntu, `FileManager` throws a FilePermission error. The docker daemon runs as root and files to be copied are owned by `root` while the archiver runs as the current user (`ubuntu` on EC2 Ubuntu). The `FileManager` manages to copy the files but throws an error after the copy. We suspect the `FileManager` to perform some kind of operation after the copy and it fails because of the `root` permission of the files. See https://github.com/swift-server/swift-aws-lambda-runtime/issues/449#issuecomment-2595978246 for a description of the problem. This PR contains code to reproduce the problem, a very simple workaround, and an integration test. The workaround consists of - trapping all errors - verify if the error is the permission error (Code = 513) - verify if the files have been copied or not - if the two above conditions are met, ignore the error, otherwise re-throw it I would rather prefer a solution that solves the root cause rather than just ignoring the error. We're still investigating the root cause (see [this thread](https://forums.swift.org/t/filemanager-copyitem-on-linux-fails-after-copying-the-files/77282) on the Swift Forum and this issue on Swift Foundation https://github.com/swiftlang/swift-foundation/issues/1125
27 lines
872 B
Swift
27 lines
872 B
Swift
//===----------------------------------------------------------------------===//
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//
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// This source file is part of the SwiftAWSLambdaRuntime open source project
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//
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// Copyright (c) 2025 Apple Inc. and the SwiftAWSLambdaRuntime project authors
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// Licensed under Apache License v2.0
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//
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// See LICENSE.txt for license information
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// See CONTRIBUTORS.txt for the list of SwiftAWSLambdaRuntime project authors
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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//===----------------------------------------------------------------------===//
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import AWSLambdaRuntime
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import Foundation
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let runtime = LambdaRuntime {
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(event: String, context: LambdaContext) in
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guard let fileURL = Bundle.module.url(forResource: "hello", withExtension: "txt") else {
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fatalError("no file url")
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}
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return try String(contentsOf: fileURL, encoding: .utf8)
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}
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try await runtime.run()
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