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Kathryn Baldauf
16f2630126
We're working on making a pure swift container image build system that leverages containerization. This PR represents our initial design and initial work towards this goal. The native builder is still in active development and most of the implementation has not been started or completed. We will be opening a series of issues that represent various (but not necessarily all) pieces of work that need to be done here. There are docs included in this PR that describe the overall design of each component and outline some of our goals. The easiest way to view the docs by themselves (since this is a massive PR) is to look at the docs commit in the `Commits` tab. We'd love any feedback! @wlan0 --------- Signed-off-by: Kathryn Baldauf <k_baldauf@apple.com>
54 lines
2.3 KiB
Swift
54 lines
2.3 KiB
Swift
//===----------------------------------------------------------------------===//
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// Copyright © 2025 Apple Inc. and the container project authors. All rights reserved.
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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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// https://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 ContainerBuildIR
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import Foundation
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/// An error related to cache operations.
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public enum CacheError: Error, LocalizedError {
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/// A cache entry was expected but not found. This is often a normal cache miss.
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case itemNotFound(key: String)
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/// The manifest file for the cache is corrupted or unreadable.
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case manifestUnreadable(path: String, underlyingError: Error)
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/// A file was read from the cache, but its content hash did not match the expected digest.
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case digestMismatch(expected: Digest, actual: Digest)
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/// An error occurred while trying to write an item to the cache storage.
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case storageFailed(path: String, underlyingError: Error)
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/// Failed to encode cache-related data as UTF-8.
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case encodingFailed(String)
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// MARK: - LocalizedError Conformance
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public var errorDescription: String? {
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switch self {
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case .itemNotFound(let key):
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return "Item with key '\(key)' not found in cache."
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case .manifestUnreadable(let path, _):
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return "Failed to read cache manifest at '\(path)'."
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case .digestMismatch(let expected, let actual):
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return "Cache integrity check failed: content digest \(actual) does not match expected digest \(expected)."
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case .storageFailed(let path, _):
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return "Failed to write to cache storage at '\(path)'."
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case .encodingFailed(let details):
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return "Failed to encode cache data: \(details)"
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}
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}
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}
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