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https://github.com/apple/container.git
synced 2026-10-14 18:19:17 +00:00
Danny Canter
39aeac3f19
If we have the same source we should dedupe these. Previously virt.framework would yell at us for a duplicate tag because we derive the tag from hashing the mount source.
33 lines
1.3 KiB
Swift
33 lines
1.3 KiB
Swift
//===----------------------------------------------------------------------===//
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// Copyright © 2025-2026 Apple Inc. and the Containerization project authors.
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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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#if os(macOS)
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import Crypto
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import ContainerizationError
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import Foundation
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public func hashMountSource(source: String) throws -> String {
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// Resolve symlinks so different paths to the same directory get the same hash.
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let resolvedSource = URL(fileURLWithPath: source).resolvingSymlinksInPath().path
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guard let data = resolvedSource.data(using: .utf8) else {
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throw ContainerizationError(.invalidArgument, message: "\(source) could not be converted to Data")
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}
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return String(SHA256.hash(data: data).encoded.prefix(36))
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}
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#endif
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